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Cheap flights from St. Louis to San Diego (STL - SAN) from $55

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
STL — SAN
May 4 — May 111
From?
To?
Sat 5/4
Sat 5/11
1 adult, Economy
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The best prices from Lambert-St Louis to San Diego are usually found in September or January, booked 28 days in advance, depart on a Tuesday or Saturday and return on a Wednesday

Cheap flight deals from St. Louis to San Diego

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to San Diego (SAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 29, 2024.

Popular in

March

Cheapest in

September

Round-trip from

$288

One-way from

$118
High demand for flights, 25% potential price rise
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Best time to find cheap flights, 29% potential price drop
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From Lambert-St Louis to San Diego
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One-way flight from Lambert-St Louis to San Diego
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What is the cheapest day to fly round-trip from St. Louis to San Diego?

Flying to your destination on a Thursday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to San Diego. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from St. Louis to San Diego?

Travelers have found it’s best to book a flight 29 days in advance to save up to 71% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 29 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to San Diego 1-2 weeks in advance for as low as $258, or $456 for flights within the next 24 hours.

What is the cheapest month to fly from St. Louis to San Diego?

The best pricing can be found in the month of September. Prices to San Diego from St. Louis average $422. You can even find prices in September for less than $422, as users have found deals to San Diego from as low as $149. The month of March appears to be one of the more expensive times to travel to San Diego from St. Louis. Flying in the targeted month can save you up to 32%.

When is the cheapest time to fly from St. Louis to San Diego (STL - SAN)?

Unlike at noon, when flights are generally more expensive, you can save up to 50% on flights from St. Louis to San Diego by exploring options for tickets in the evening.

Cheap Spirit Airlines flights from St. Louis to San Diego

Explore cheap flight options specifically provided by Spirit Airlines for the route between St. Louis and San Diego. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 29, 2024.
Take a peek at the cheapest Spirit Airlines flights we've detected traveling from St. Louis to San Diego. Come back soon if you're not finding the exact deal you're looking for.
Wed 5/811:36 amSTL - SAN
1 stop10h 46mSpirit Airlines
Sun 5/197:58 pmSAN - STL
1 stop17h 16mSpirit Airlines
Deal found 4/27$100
Fri 5/244:05 pmSTL - SAN
1 stop9h 16mSpirit Airlines
Tue 5/289:12 pmSAN - STL
1 stop11h 34mSpirit Airlines
Deal found 4/27$159
Sat 5/1811:39 amSTL - SAN
2 stops23h 35mSpirit Airlines
Tue 5/219:12 pmSAN - STL
1 stop11h 34mSpirit Airlines
Deal found 4/28$173
Thu 5/167:30 pmSTL - SAN
2 stops29h 51mSpirit Airlines
Tue 5/219:12 pmSAN - STL
1 stop11h 34mSpirit Airlines
Deal found 4/28$176
Wed 5/811:36 amSTL - SAN
2 stops28h 49mSpirit Airlines
Sun 5/196:15 amSAN - STL
2 stops30h 59mSpirit Airlines
Deal found 4/27$182
Tue 5/2810:34 amSTL - SAN
2 stops24h 40mSpirit Airlines
Tue 6/49:12 pmSAN - STL
1 stop13h 53mSpirit Airlines
Deal found 4/28$185
Fri 5/174:05 pmSTL - SAN
1 stop9h 16mSpirit Airlines
Tue 5/216:15 amSAN - STL
2 stops26h 31mSpirit Airlines
Deal found 4/28$189
Sat 5/1811:39 amSTL - SAN
3 stops23h 35mSpirit Airlines
Tue 5/219:12 pmSAN - STL
1 stop11h 34mSpirit Airlines
Deal found 4/28$191
Thu 5/167:30 pmSTL - SAN
2 stops29h 51mSpirit Airlines
Tue 5/216:15 amSAN - STL
2 stops26h 31mSpirit Airlines
Deal found 4/28$194

Cheap Delta flights from St. Louis to San Diego

Explore cheap flight options specifically provided by Delta for the route between St. Louis and San Diego. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 29, 2024.
To aid your search, here are some of the cheapest Delta flights we've found from St. Louis to San Diego. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Tue 7/95:59 pmSTL - SAN
1 stop7h 45mDelta
Sat 7/1310:40 pmSAN - STL
1 stop8h 26mDelta
Deal found 4/27$236
Mon 7/85:25 pmSTL - SAN
1 stop8h 12mDelta
Sat 7/1310:40 pmSAN - STL
1 stop8h 26mDelta
Deal found 4/27$267
Fri 10/116:59 pmSTL - SAN
1 stop6h 53mDelta
Mon 10/149:59 pmSAN - STL
1 stop8h 52mDelta
Deal found 4/28$297

Cheap St. Louis to San Diego flights in April & May 2024

Find cheap flight options from St. Louis to San Diego specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,944,896 searches. Prices were last updated on April 29, 2024.
These are some of the most attractive deals on flights from St. Louis to San Diego in 2024. Check back in a little while for more flight options.
Tue 5/282:12 pmSTL - SAN
1 stop7h 09mMultiple Airlines
Tue 6/49:12 pmSAN - STL
1 stop13h 53mMultiple Airlines
Deal found 4/28$144
Thu 5/167:23 pmSTL - SAN
1 stop25h 58mFrontier
Sun 5/196:19 pmSAN - STL
1 stop13h 54mFrontier
Deal found 4/27$145
Wed 5/2911:36 amSTL - SAN
1 stop12h 49mMultiple Airlines
Sat 6/18:21 pmSAN - STL
1 stop11h 52mMultiple Airlines
Deal found 4/28$147
Tue 5/710:59 pmSTL - SAN
1 stop10h 35mFrontier
Sat 5/119:14 pmSAN - STL
1 stop11h 04mFrontier
Deal found 4/27$153
Tue 5/710:59 pmSTL - SAN
1 stop10h 35mFrontier
Sat 5/119:14 pmSAN - STL
1 stop11h 04mFrontier
Deal found 4/26$155
Mon 5/137:51 pmSTL - SAN
1 stop22h 35mFrontier
Sat 5/188:21 pmSAN - STL
1 stop17h 50mFrontier
Deal found 4/28$156
Thu 5/911:38 amSTL - SAN
1 stop22h 30mFrontier
Sun 5/129:32 pmSAN - STL
1 stop10h 46mFrontier
Deal found 4/28$158
Fri 5/244:05 pmSTL - SAN
1 stop9h 16mSpirit Airlines
Tue 5/289:12 pmSAN - STL
1 stop11h 34mSpirit Airlines
Deal found 4/27$159
Fri 5/246:05 pmSTL - SAN
2 stops17h 09mMultiple Airlines
Tue 5/289:12 pmSAN - STL
1 stop11h 34mMultiple Airlines
Deal found 4/27$163

St. Louis to San Diego 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and San Diego in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 29, 2024.
These are some of the most attractive deals on flights from St. Louis to San Diego in 2024. Check back in a little while for more flight options.
Wed 6/51:55 pmSTL - SAN
1 stop10h 32mMultiple Airlines
Sat 6/81:09 pmSAN - STL
1 stop6h 34mMultiple Airlines
Deal found 4/28$141
Tue 5/282:12 pmSTL - SAN
1 stop7h 09mMultiple Airlines
Tue 6/49:12 pmSAN - STL
1 stop13h 53mMultiple Airlines
Deal found 4/28$144
Thu 5/167:23 pmSTL - SAN
1 stop25h 58mFrontier
Sun 5/196:19 pmSAN - STL
1 stop13h 54mFrontier
Deal found 4/27$145
Wed 5/2911:36 amSTL - SAN
1 stop12h 49mMultiple Airlines
Sat 6/18:21 pmSAN - STL
1 stop11h 52mMultiple Airlines
Deal found 4/28$147
Tue 5/710:59 pmSTL - SAN
1 stop10h 35mFrontier
Sat 5/119:14 pmSAN - STL
1 stop11h 04mFrontier
Deal found 4/27$153
Tue 5/710:59 pmSTL - SAN
1 stop10h 35mFrontier
Sat 5/119:14 pmSAN - STL
1 stop11h 04mFrontier
Deal found 4/26$155
Mon 5/137:51 pmSTL - SAN
1 stop22h 35mFrontier
Sat 5/188:21 pmSAN - STL
1 stop17h 50mFrontier
Deal found 4/28$156
Sat 6/157:29 pmSTL - SAN
1 stop14h 17mMultiple Airlines
Tue 6/189:19 pmSAN - STL
1 stop13h 46mMultiple Airlines
Deal found 4/27$157
Thu 5/911:38 amSTL - SAN
1 stop22h 30mFrontier
Sun 5/129:32 pmSAN - STL
1 stop10h 46mFrontier
Deal found 4/28$158

St. Louis to San Diego flights leaving soon

Find last-minute flight options from St. Louis to San Diego for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 29, 2024.
Have a look at some of the last-minute flights available departing from St. Louis to San Diego. To prevent any unwanted surprises, users should verify their flight info before booking.
Tue 5/710:59 pmSTL - SAN
1 stop10h 35mFrontier
Sat 5/119:14 pmSAN - STL
1 stop11h 04mFrontier
Deal found 4/27$153
Tue 5/710:59 pmSTL - SAN
1 stop10h 35mFrontier
Sat 5/119:14 pmSAN - STL
1 stop11h 04mFrontier
Deal found 4/26$155
Wed 5/811:36 amSTL - SAN
2 stops28h 49mSpirit Airlines
Sun 5/196:15 amSAN - STL
2 stops30h 59mSpirit Airlines
Deal found 4/27$182
Fri 5/35:35 pmSTL - SAN
1 stop16h 57mMultiple Airlines
Tue 5/76:26 pmSAN - STL
1 stop14h 20mMultiple Airlines
Deal found 4/28$197
Fri 5/37:51 pmSTL - SAN
1 stop21h 14mFrontier
Mon 5/69:32 pmSAN - STL
1 stop22h 27mFrontier
Deal found 4/27$225
Wed 5/811:36 amSTL - SAN
1 stop10h 46mMultiple Airlines
Sun 5/197:58 pmSAN - STL
3 stops18h 47mMultiple Airlines
Deal found 4/27$229
Fri 5/37:51 pmSTL - SAN
1 stop21h 14mFrontier
Sun 5/57:53 amSAN - STL
1 stop24h 25mFrontier
Deal found 4/27$233
Wed 5/811:36 amSTL - SAN
2 stops21h 34mSpirit Airlines
Sun 5/199:12 pmSAN - STL
1 stop16h 02mSpirit Airlines
Deal found 4/27$301
Tue 5/710:34 amSTL - SAN
2 stops24h 40mSpirit Airlines
Sat 5/118:07 pmSAN - STL
3 stops19h 22mSpirit Airlines
Deal found 4/27$306

One-way flights to San Diego from St. Louis

Search for one-way flight options from St. Louis to San Diego. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 29, 2024.
Users in need of a one-way flight from St. Louis to San Diego can choose from these deals. Users in need of a round-trip flight from St. Louis to San Diego instead should update the search form at the top of page.
Wed 5/227:23 pmSTL - SAN
1 stop21h 17mFrontier
Deal found 4/28$55
Mon 5/65:02 pmSTL - SAN
1 stop20h 53mSpirit Airlines
Deal found 4/28$61
Mon 5/65:02 pmSTL - SAN
2 stops19h 40mSpirit Airlines
Deal found 4/28$75
Mon 5/65:02 pmSTL - SAN
2 stops19h 40mSpirit Airlines
Deal found 4/28$77
Mon 5/67:51 pmSTL - SAN
1 stop16h 43mFrontier
Deal found 4/28$79
Mon 5/274:05 pmSTL - SAN
1 stop19h 09mSpirit Airlines
Deal found 4/28$80
Mon 5/68:04 pmSTL - SAN
1 stop12h 56mFrontier
Deal found 4/28$86
Sun 5/53:29 pmSTL - SAN
1 stop18h 54mFrontier
Deal found 4/28$95
Wed 7/103:07 pmSTL - SAN
1 stop7h 14mSpirit Airlines
Deal found 4/28$98

Find flights from St. Louis to San Diego within your budget

Customize your flight search to find flights from St. Louis to San Diego that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 29, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$100 - $276

Route

Depart

Return

Price

Lambert-St LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

Wed 5/8

1 stop10h 46m

San Diego

Sun 5/19

1 stop17h 16m

$100

Lambert-St LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

Thu 5/23

1 stop25h 58m

San Diego

Tue 5/28

1 stop11h 34m

$103

Lambert-St LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

Wed 5/8

1 stop10h 46m

San Diego

Sun 5/19

1 stop13h 54m

$105

Lambert-St LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

Wed 5/15

1 stop12h 49m

San Diego

Mon 5/20

1 stop23h 18m

$111

Lambert-St LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

Sat 5/18

1 stop13h 00m

San Diego

Tue 5/21

1 stop8h 35m

$116

Lambert-St LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

Sat 5/18

1 stop13h 00m

San Diego

Wed 5/22

1 stop11h 52m

$119

Lambert-St LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

Sat 5/18

1 stop13h 00m

San Diego

Tue 5/21

1 stop11h 52m

$120

Lambert-St LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

Tue 7/9

1 stop7h 45m

San Diego

Sat 7/13

1 stop8h 26m

$236

Lambert-St LouisSan Diego

STL - SAN

STLSAN

Lambert-St Louis

Sun 9/1

2 stops14h 04m

San Diego

Sat 9/7

1 stop6h 29m

$276

Flights are sorted by cheapest first

Deals found on 4/27

When is the best time to book a flight from St. Louis to San Diego?

Use this chart to determine the optimal time to book a round-trip flight from St. Louis to San Diego. Price data was last updated on January 28, 2024.
To ensure you get the cheapest price possible for a flight from St. Louis to San Diego, you should look to book at least 28 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

When is the cheapest time to fly from St. Louis to San Diego?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to San Diego. Price data was last updated on April 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to San Diego flight should consider departing on Sunday evenings when fares are most often at their lowest. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to San Diego by month

Plan your trip from St. Louis to San Diego by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to San Diego is currently $78 while a round-trip flight costs $143. Price data was last updated on April 21, 2024.

Currently, October is the cheapest month in which you can book a flight from St. Louis to San Diego (average of $288). Flying from St. Louis to San Diego in June is currently the most expensive (average of $364). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$292

February

$297

March

$339

April

$303

May

$308

June

$364

July

$363

August

$312

September

$299

October

$288

November

$334

December

$306

Temperature and rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average temperature and rainfall totals by month.

SAN

Temperature

57.2 - 71.6 °F

Reviews of airlines servicing San Diego

Get insights into the airlines that provide service to San Diego. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Diego. Reviews last updated April 29, 2024.
Peruse reviews from past customers who have flown with Spirit Airlines, Delta and Frontier from St. Louis to San Diego to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,116 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Overall

8.1

Crew

8.6

Food

7.3

Reviews

1 / 10

We paid $161 for two exit row seats thinking there’d be extra leg room and not be cramped! The price we paid was a rip-off for these seats and the plane was extremely narrow and cramped. The male crew were okay but not super-friendly. When we picked up our luggage at baggage claim, someone ripped my luggage with a knife or blunt object and destroyed it!! I will be filling a claim for this and took pictures. I heard great reviews about this airline but am disappointed.

Alaska Airlines
8.1
Very good
9,116 reviews
Alaska Airlines
8.1
Very good
9,116 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Overall

8.1

Crew

8.6

Food

7.3

Reviews

1 / 10

We paid $161 for two exit row seats thinking there’d be extra leg room and not be cramped! The price we paid was a rip-off for these seats and the plane was extremely narrow and cramped. The male crew were okay but not super-friendly. When we picked up our luggage at baggage claim, someone ripped my luggage with a knife or blunt object and destroyed it!! I will be filling a claim for this and took pictures. I heard great reviews about this airline but am disappointed.

Delta
8.1
Very good
10,913 reviews
Alaska Airlines
8.1
Very good
9,116 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Overall

8.1

Crew

8.6

Food

7.3

Reviews

1 / 10

We paid $161 for two exit row seats thinking there’d be extra leg room and not be cramped! The price we paid was a rip-off for these seats and the plane was extremely narrow and cramped. The male crew were okay but not super-friendly. When we picked up our luggage at baggage claim, someone ripped my luggage with a knife or blunt object and destroyed it!! I will be filling a claim for this and took pictures. I heard great reviews about this airline but am disappointed.

United Airlines
7.4
Good
11,202 reviews
Alaska Airlines
8.1
Very good
9,116 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Overall

8.1

Crew

8.6

Food

7.3

Reviews

1 / 10

We paid $161 for two exit row seats thinking there’d be extra leg room and not be cramped! The price we paid was a rip-off for these seats and the plane was extremely narrow and cramped. The male crew were okay but not super-friendly. When we picked up our luggage at baggage claim, someone ripped my luggage with a knife or blunt object and destroyed it!! I will be filling a claim for this and took pictures. I heard great reviews about this airline but am disappointed.

American Airlines
7.3
Good
14,834 reviews
Alaska Airlines
8.1
Very good
9,116 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Overall

8.1

Crew

8.6

Food

7.3

Reviews

1 / 10

We paid $161 for two exit row seats thinking there’d be extra leg room and not be cramped! The price we paid was a rip-off for these seats and the plane was extremely narrow and cramped. The male crew were okay but not super-friendly. When we picked up our luggage at baggage claim, someone ripped my luggage with a knife or blunt object and destroyed it!! I will be filling a claim for this and took pictures. I heard great reviews about this airline but am disappointed.

Spirit Airlines
6.4
Okay
8,745 reviews
Alaska Airlines
8.1
Very good
9,116 reviews
Check prices

Boarding

8.2

Comfort

7.9

Entertainment

7.3

Overall

8.1

Crew

8.6

Food

7.3

Reviews

1 / 10

We paid $161 for two exit row seats thinking there’d be extra leg room and not be cramped! The price we paid was a rip-off for these seats and the plane was extremely narrow and cramped. The male crew were okay but not super-friendly. When we picked up our luggage at baggage claim, someone ripped my luggage with a knife or blunt object and destroyed it!! I will be filling a claim for this and took pictures. I heard great reviews about this airline but am disappointed.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from St. Louis to San Diego?

    If you book a flight from St. Louis to San Diego, you will be flying from Lambert-St Louis to San Diego. Flights to San Diego (SAN) from Lambert-St Louis (STL) take 3h 50m for a nonstop flight. There is 1 flight from Lambert-St Louis to San Diego per day from 6 airlines.

  • Can I find flights from St. Louis to San Diego for under $100 on Cheapflights?

    Yes, there are multiple flights from St. Louis to San Diego for under $100. The cheapest flight booked recently is on Spirit Airlines for just $100, but on average you can expect to pay $129.

  • Are there last-minute flights available from St. Louis to San Diego for under $200?

    There are currently 20+ open flights from St. Louis to San Diego within the next 7 days for less than $200.

  • What are the cheapest airlines flying from St. Louis to San Diego round-trip?

    Flying on Spirit Airlines is currently your cheapest option to San Diego, with prices starting at $100. Another option worth looking into is Frontier, starting at $116 round trip. You may be able to fly from St. Louis to San Diego for 76% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from St. Louis to San Diego one-way?

    The cheapest airlines for a one-way flight from St. Louis to San Diego are Frontier ($55), Spirit Airlines ($61), and Delta ($118).

  • What are the most popular airlines that fly from St. Louis to San Diego?

    Consider American Airlines, Alaska Airlines or Delta when booking your flight. These represent the most popular airlines when flying from St. Louis to San Diego.

  • What does STL to SAN mean?

    STL and SAN are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. STL to SAN refers to a flight route from Lambert-St Louis Airport to San Diego Airport.

  • Where are the most common layover locations when flying from St. Louis to San Diego?

    St. Louis to San Diego flights have a layover in Denver most often.

  • What are some popular things to do or see while on a layover in Denver?

    The majority of Denver visitors spend their time at Coors Field, 16th Street Mall, and Civic Center Park. Travelers on a layover in Denver can visit Coors Field, 16th Street Mall, and Civic Center Park, by traveling 18.4 mi, 18.7 mi, and 18.7 mi, respectively after landing at Denver Intl. Travelers can rent a car at Denver Intl for an average daily rate of $47 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for St. Louis to San Diego flights?

    St. Louis to San Diego flights have a layover in Phoenix the least frequently.

  • Can I find deals for flights from St. Louis to San Diego that include extra baggage allowance?

    The amount of baggage you can bring on your St. Louis to San Diego flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from St. Louis to San Diego with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to San Diego flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from St. Louis to San Diego that include hotel bookings?

    Yes. In addition to deals on St. Louis to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to San Diego?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to San Diego.

  • Can I find deals for business class flights from St. Louis to San Diego?

    Yes. Cheapflights offers flight deals from St. Louis to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from St. Louis to San Diego that allow pets onboard?

    Many airlines flying from St. Louis to San Diego offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from St. Louis to San Diego?

    Yes, you can often find last-minute deals on St. Louis to San Diego flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the St. Louis to San Diego flight deals updated?

    The St. Louis to San Diego flight deals you see on this page were last updated on 4/28.

See more FAQs

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Top 6 airlines flying from St. Louis to San Diego

Discover the top 6 airlines that operate flights from St. Louis to San Diego. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,944,896 searches. Data last updated April 29, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$98Average$207FlexibilityNo cancel feeOn-time62%
Search Frontier flights
Spirit AirlinesCheapest$130Average$247FlexibilityNo cancel feeOn-time65%
Search Spirit Airlines flights
American AirlinesCheapest$207Average$438FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$235Average$392FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapest$298Average$438FlexibilityNo cancel feeOn-time69%
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Alaska AirlinesCheapest$617Average$718FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
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Search flights from St. Louis to San Diego by cabin class

Find flights from St. Louis to San Diego, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Hourly flight availability from St. Louis to San Diego

Find hourly flight availability from St. Louis to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2024.
24%of flight departuresEarly morningMidnight to 6 am
38%of flight departuresMorning6 am to noon
38%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from St. Louis to San Diego

Explore weekly flight availability from St. Louis to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated April 29, 2024.
Sunday3daily flights
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday1daily flight

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to San Diego?

When you search for this flight from St. Louis to San Diego, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to San Diego?

Cheapflights helps you find that perfect flight to San Diego from St. Louis by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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Not ready to book yet? You can track prices for flights from St. Louis to San Diego on Cheapflights with our Price Alert feature and get notified when better prices are available.

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