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Cheap flights from St. Louis to Santa Rosa (STL - STS) from $618

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/8. 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 — STS
May 3 — May 101
From?
To?
Fri 5/3
Fri 5/10
1 adult, Economy
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Cheap flight deals from St. Louis to Santa Rosa

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Santa Rosa (STS). 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 28, 2024.

Popular in

July

Cheapest in

September

Average price

$690

Round-trip from

$268
High demand for flights, 20% potential price rise
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Best time to find cheap flights, 28% potential price drop
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Average for round-trip flights in April 2024
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From Lambert-St Louis to Santa Rosa Sonoma County
Search Deals

What is the cheapest day to fly round-trip from St. Louis to Santa Rosa?

Flights from St. Louis to Santa Rosa are found to be more expensive on Friday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Santa Rosa.

How far in advance should I book a flight from St. Louis to Santa Rosa?

Travelers have found it’s best to book a flight 14 days in advance to save up to 7% 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 14 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 Santa Rosa 1-2 weeks in advance for as low as $242, or $366 for flights within the next 24 hours.

What is the cheapest month to fly from St. Louis to Santa Rosa?

October can be a great time to fly to Santa Rosa from St. Louis with a flight ticket averaging about $414. Cheapflights users have found deals in the month of October for as cheap as $139. The most expensive prices can be found in the month of June.

When is the cheapest time to fly from St. Louis to Santa Rosa (STL - STS)?

When flying from St. Louis to Santa Rosa, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap Alaska Airlines flights from St. Louis to Santa Rosa

Explore cheap flight options specifically provided by Alaska Airlines for the route between St. Louis and Santa Rosa. 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 28, 2024.
Check out some of the cheapest Alaska Airlines flights we've come across from St. Louis to Santa Rosa. Make sure to double check the flight details before booking.
Wed 5/87:00 amSTL - STS
2 stops29h 16mAlaska Airlines
Sat 5/112:18 pmSTS - STL
1 stop7h 41mAlaska Airlines
Deal found 4/26$721
Wed 5/87:00 amSTL - STS
2 stops29h 16mAlaska Airlines
Sat 5/114:35 pmSTS - STL
2 stops29h 24mAlaska Airlines
Deal found 4/26$730
Wed 5/87:00 amSTL - STS
1 stop8h 23mAlaska Airlines
Sat 5/112:18 pmSTS - STL
1 stop7h 41mAlaska Airlines
Deal found 4/27$748
Wed 5/87:00 amSTL - STS
1 stop8h 23mAlaska Airlines
Sat 5/114:35 pmSTS - STL
2 stops18h 48mAlaska Airlines
Deal found 4/27$757
Sat 5/47:00 amSTL - STS
2 stops10h 55mAlaska Airlines
Sun 5/124:35 pmSTS - STL
2 stops29h 24mAlaska Airlines
Deal found 4/27$771
Wed 5/82:35 pmSTL - STS
2 stops27h 20mAlaska Airlines
Sat 5/1111:20 amSTS - STL
2 stops24h 03mAlaska Airlines
Deal found 4/27$791

Cheap American Airlines flights from St. Louis to Santa Rosa

Explore cheap flight options specifically provided by American Airlines for the route between St. Louis and Santa Rosa. 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 28, 2024.
Take a gander at the lowest prices we've found on American Airlines flights from St. Louis to Santa Rosa. Deals are refreshing constantly so come back soon for more options.
Thu 8/85:54 amSTL - STS
1 stop8h 07mAmerican Airlines
Mon 8/122:19 pmSTS - STL
1 stop6h 05mAmerican Airlines
Deal found 4/27$618
Thu 8/87:44 amSTL - STS
1 stop6h 17mAmerican Airlines
Mon 8/124:12 pmSTS - STL
2 stops15h 52mAmerican Airlines
Deal found 4/27$621
Thu 8/86:26 amSTL - STS
2 stops11h 16mAmerican Airlines
Mon 8/124:12 pmSTS - STL
2 stops15h 52mAmerican Airlines
Deal found 4/27$741
Sat 5/45:20 amSTL - STS
1 stop9h 03mAmerican Airlines
Sun 5/124:20 pmSTS - STL
1 stop5h 36mAmerican Airlines
Deal found 4/27$793
Sat 5/45:15 amSTL - STS
2 stops12h 39mAmerican Airlines
Sun 5/124:20 pmSTS - STL
1 stop5h 36mAmerican Airlines
Deal found 4/27$796
Wed 5/15:20 amSTL - STS
1 stop9h 03mAmerican Airlines
Wed 5/154:20 pmSTS - STL
1 stop5h 36mAmerican Airlines
Deal found 4/27$848
Wed 5/15:20 amSTL - STS
1 stop9h 03mAmerican Airlines
Wed 5/154:20 pmSTS - STL
2 stops15h 33mAmerican Airlines
Deal found 4/27$851
Wed 5/17:01 amSTL - STS
2 stops10h 53mAmerican Airlines
Wed 5/154:20 pmSTS - STL
2 stops15h 33mAmerican Airlines
Deal found 4/27$856

Cheap St. Louis to Santa Rosa flights in April & May 2024

Find cheap flight options from St. Louis to Santa Rosa 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 28, 2024.
Check out some of the best flight deals from St. Louis to Santa Rosa in 2024. More deals are always being added, so be sure to check back regularly.
Thu 5/165:21 amSTL - STS
1 stop8h 36mAmerican Airlines
Sat 5/184:20 pmSTS - STL
1 stop5h 36mAmerican Airlines
Deal found 4/28$670
Wed 5/87:00 amSTL - STS
1 stop8h 23mAlaska Airlines
Sat 5/112:18 pmSTS - STL
1 stop7h 41mAlaska Airlines
Deal found 4/27$748
Wed 5/87:00 amSTL - STS
1 stop8h 23mAlaska Airlines
Sat 5/114:35 pmSTS - STL
2 stops18h 48mAlaska Airlines
Deal found 4/27$757
Wed 5/82:35 pmSTL - STS
2 stops27h 20mAlaska Airlines
Sat 5/1111:20 amSTS - STL
2 stops24h 03mAlaska Airlines
Deal found 4/27$791
Thu 5/169:43 amSTL - STS
2 stops8h 07mAmerican Airlines
Sat 5/184:20 pmSTS - STL
1 stop5h 36mAmerican Airlines
Deal found 4/28$1,052
Thu 5/169:43 amSTL - STS
2 stops8h 07mAmerican Airlines
Sat 5/1810:33 amSTS - STL
2 stops9h 14mAmerican Airlines
Deal found 4/28$2,231

St. Louis to Santa Rosa 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Santa Rosa 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 28, 2024.
Check out some of the best flight deals from St. Louis to Santa Rosa in 2024. More deals are always being added, so be sure to check back regularly.
Thu 5/165:21 amSTL - STS
1 stop8h 36mAmerican Airlines
Sat 5/184:20 pmSTS - STL
1 stop5h 36mAmerican Airlines
Deal found 4/28$670
Wed 5/87:00 amSTL - STS
1 stop8h 23mAlaska Airlines
Sat 5/112:18 pmSTS - STL
1 stop7h 41mAlaska Airlines
Deal found 4/27$748
Wed 5/87:00 amSTL - STS
1 stop8h 23mAlaska Airlines
Sat 5/114:35 pmSTS - STL
2 stops18h 48mAlaska Airlines
Deal found 4/27$757
Fri 7/195:30 pmSTL - STS
1 stop20h 18mAmerican Airlines
Mon 7/224:11 pmSTS - STL
1 stop5h 44mAmerican Airlines
Deal found 4/28$761
Fri 7/196:09 pmSTL - STS
1 stop23h 34mAmerican Airlines
Mon 7/224:11 pmSTS - STL
2 stops18h 05mAmerican Airlines
Deal found 4/28$767
Wed 5/82:35 pmSTL - STS
2 stops27h 20mAlaska Airlines
Sat 5/1111:20 amSTS - STL
2 stops24h 03mAlaska Airlines
Deal found 4/27$791
Fri 7/197:32 pmSTL - STS
2 stops25h 02mAlaska Airlines
Mon 7/227:03 pmSTS - STL
2 stops16h 17mAlaska Airlines
Deal found 4/28$888
Thu 5/169:43 amSTL - STS
2 stops8h 07mAmerican Airlines
Sat 5/184:20 pmSTS - STL
1 stop5h 36mAmerican Airlines
Deal found 4/28$1,052
Thu 5/169:43 amSTL - STS
2 stops8h 07mAmerican Airlines
Sat 5/1810:33 amSTS - STL
2 stops9h 14mAmerican Airlines
Deal found 4/28$2,231

St. Louis to Santa Rosa flights leaving soon

Find last-minute flight options from St. Louis to Santa Rosa 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 28, 2024.
Have a look at some of the last-minute flights available departing from St. Louis to Santa Rosa. Users should examine the flight details to ensure there are no surprises.
Wed 5/87:00 amSTL - STS
2 stops29h 16mAlaska Airlines
Sat 5/112:18 pmSTS - STL
1 stop7h 41mAlaska Airlines
Deal found 4/26$721
Wed 5/87:00 amSTL - STS
2 stops29h 16mAlaska Airlines
Sat 5/114:35 pmSTS - STL
2 stops29h 24mAlaska Airlines
Deal found 4/26$730
Wed 5/87:00 amSTL - STS
1 stop8h 23mAlaska Airlines
Sat 5/112:18 pmSTS - STL
1 stop7h 41mAlaska Airlines
Deal found 4/27$748
Wed 5/87:00 amSTL - STS
1 stop8h 23mAlaska Airlines
Sat 5/114:35 pmSTS - STL
2 stops18h 48mAlaska Airlines
Deal found 4/27$757
Sat 5/47:00 amSTL - STS
2 stops10h 55mAlaska Airlines
Sun 5/124:35 pmSTS - STL
2 stops29h 24mAlaska Airlines
Deal found 4/27$771
Wed 5/82:35 pmSTL - STS
2 stops27h 20mAlaska Airlines
Sat 5/1111:20 amSTS - STL
2 stops24h 03mAlaska Airlines
Deal found 4/27$791
Sat 5/45:20 amSTL - STS
1 stop9h 03mAmerican Airlines
Sun 5/124:20 pmSTS - STL
1 stop5h 36mAmerican Airlines
Deal found 4/27$793
Sat 5/45:15 amSTL - STS
2 stops12h 39mAmerican Airlines
Sun 5/124:20 pmSTS - STL
1 stop5h 36mAmerican Airlines
Deal found 4/27$796
Wed 5/15:20 amSTL - STS
1 stop9h 03mAmerican Airlines
Wed 5/154:20 pmSTS - STL
1 stop5h 36mAmerican Airlines
Deal found 4/27$848

Find flights from St. Louis to Santa Rosa within your budget

Customize your flight search to find flights from St. Louis to Santa Rosa 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 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$618 - $791

Route

Depart

Return

Price

Lambert-St LouisSanta Rosa Sonoma County

STL - STS

STLSTS

Lambert-St Louis

Thu 8/8

1 stop8h 07m

Santa Rosa Sonoma County

Mon 8/12

1 stop6h 05m

$618

Lambert-St LouisSanta Rosa Sonoma County

STL - STS

STLSTS

Lambert-St Louis

Thu 8/8

1 stop6h 17m

Santa Rosa Sonoma County

Mon 8/12

2 stops15h 52m

$621

Lambert-St LouisSanta Rosa Sonoma County

STL - STS

STLSTS

Lambert-St Louis

Wed 5/8

2 stops29h 16m

Santa Rosa Sonoma County

Sat 5/11

1 stop7h 41m

$721

Lambert-St LouisSanta Rosa Sonoma County

STL - STS

STLSTS

Lambert-St Louis

Wed 5/8

2 stops29h 16m

Santa Rosa Sonoma County

Sat 5/11

2 stops29h 24m

$730

Lambert-St LouisSanta Rosa Sonoma County

STL - STS

STLSTS

Lambert-St Louis

Thu 8/8

2 stops11h 16m

Santa Rosa Sonoma County

Mon 8/12

2 stops15h 52m

$741

Lambert-St LouisSanta Rosa Sonoma County

STL - STS

STLSTS

Lambert-St Louis

Wed 5/8

1 stop8h 23m

Santa Rosa Sonoma County

Sat 5/11

1 stop7h 41m

$748

Lambert-St LouisSanta Rosa Sonoma County

STL - STS

STLSTS

Lambert-St Louis

Wed 5/8

1 stop8h 23m

Santa Rosa Sonoma County

Sat 5/11

2 stops18h 48m

$757

Lambert-St LouisSanta Rosa Sonoma County

STL - STS

STLSTS

Lambert-St Louis

Wed 5/8

2 stops27h 20m

Santa Rosa Sonoma County

Sat 5/11

2 stops24h 03m

$791

Flights are sorted by cheapest first

Deals found on 4/27

When is the cheapest time to fly from St. Louis to Santa Rosa?

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Santa Rosa. 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 Santa Rosa flight should consider departing on Tuesday mornings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Santa Rosa by month

Plan your trip from St. Louis to Santa Rosa by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Santa Rosa is currently $0 while a round-trip flight costs $716. Price data was last updated on April 21, 2024.

Currently, February is the cheapest month in which you can book a flight from St. Louis to Santa Rosa (average of $213). Flying from St. Louis to Santa Rosa in July is currently the most expensive (average of $387). 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

$248

February

$213

March

$283

April

$306

May

$321

June

$361

July

$387

August

$318

September

$302

October

$368

November

$364

December

$278

Temperature and rainfall in Santa Rosa by month

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

SFO

Temperature

51.8 - 62.6 °F

Reviews of airlines servicing Santa Rosa

Get insights into the airlines that provide service to Santa Rosa. 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 Santa Rosa. Reviews last updated April 28, 2024.
Read reviews from past customers who have flown Alaska Airlines and American Airlines from St. Louis to Santa Rosa. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.1
Very good
9,110 reviews
Check prices

Entertainment

7.3

Boarding

8.2

Overall

8.1

Comfort

7.9

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
9,110 reviews
Alaska Airlines
8.1
Very good
9,110 reviews
Check prices

Entertainment

7.3

Boarding

8.2

Overall

8.1

Comfort

7.9

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
14,844 reviews
Alaska Airlines
8.1
Very good
9,110 reviews
Check prices

Entertainment

7.3

Boarding

8.2

Overall

8.1

Comfort

7.9

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 Santa Rosa. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from St. Louis to Santa Rosa for under $700 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Santa Rosa for under $700. The cheapest flight booked recently is on American Airlines for just $618, but on average you can expect to pay $715.

  • Are there last-minute flights available from St. Louis to Santa Rosa for under $800?

    There are currently 11+ open flights from St. Louis to Santa Rosa within the next 7 days for less than $800.

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

    American Airlines, at $618, was found to be the cheapest airline from St. Louis to Santa Rosa. An alternate airline flying to your destination would be Alaska Airlines.

  • What does STL to STS mean?

    Great question - STL to STS just means Lambert-St Louis Airport to Santa Rosa Sonoma County Airport. Now you’ll know what these unique codes when you look for flights!

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

    The amount of baggage you can bring on your St. Louis to Santa Rosa 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 Santa Rosa with specific airlines?

    Yes, Cheapflights allows you to browse and filter St. Louis to Santa Rosa 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 Santa Rosa that include hotel bookings?

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

  • How can I find direct flights from St. Louis to Santa Rosa?

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

  • Can I find deals for business class flights from St. Louis to Santa Rosa?

    Yes. Cheapflights offers flight deals from St. Louis to Santa Rosa 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 Santa Rosa that allow pets onboard?

    Many airlines flying from St. Louis to Santa Rosa 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 Santa Rosa?

    Yes, you can often find last-minute deals on St. Louis to Santa Rosa 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 Santa Rosa flight deals updated?

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

See more FAQs

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Top 2 airlines flying from St. Louis to Santa Rosa

Discover the top 2 airlines that operate flights from St. Louis to Santa Rosa. 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 28, 2024.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$384Average$529FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
American AirlinesCheapest$428Average$599FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
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Search flights from St. Louis to Santa Rosa by cabin class

Find flights from St. Louis to Santa Rosa, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Fly with Cheapflights

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How does Cheapflights help users find flights from St. Louis to Santa Rosa?

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Why should you use Cheapflights to find cheap flight tickets from St. Louis to Santa Rosa?

Millions of users choose and trust Cheapflights to book the best flight deals from St. Louis to Santa Rosa for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from St. Louis to Santa Rosa with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from St. Louis to Santa Rosa, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from St. Louis to Santa Rosa become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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