Cheap flights from St. Louis to Louisville (STL - SDF) from $54

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 5/18. 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 — SDF
May 8 — May 151

Cheap flight deals from St. Louis to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Louisville (SDF). 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 May 3, 2024.

Popular in

February

Cheapest in

April

Round-trip from

$287

One-way from

$54
High demand for flights, 88% potential price rise
Best time to find cheap flights, 73% potential price drop
From Lambert-St Louis to Louisville Intl
One-way flight from Lambert-St Louis to Louisville Intl

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

Users have found that leaving on a Tuesday can be a cost-effective option. It’s possible to save up to 114% on your flight compared to booking on days when demand is much higher.

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

Due to multiple factors, expect to potentially pay more when booking in February. For low rates, April can be a great choice for travel to Louisville. Flights to Louisville from St. Louis in April are about $1,017 on average during April, but can be found for as low as $209.

When is the cheapest time to fly from St. Louis to Louisville (STL - SDF)?

One of the essential ways to save on airfare from St. Louis to Louisville is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight at noon could potentially save you up to 20% on airfare.

Cheap Delta flights from St. Louis to Louisville

Explore cheap flight options specifically provided by Delta for the route between St. Louis and Louisville. 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 2,864,334 searches. Data last updated May 3, 2024.
Find some of the cheapest Delta flights traveling from St. Louis to Louisville. Be sure to come back soon if the deals available don't appeal to you at this time.
Tue 5/145:37 pmSTL - SDF
1 stop4h 15mDelta
Wed 5/1510:32 amSDF - STL
1 stop3h 36mDelta
Deal found 5/1$346
Tue 5/143:27 pmSTL - SDF
1 stop5h 23mDelta
Wed 5/151:40 pmSDF - STL
1 stop4h 06mDelta
Deal found 5/2$458

Cheap American Airlines flights from St. Louis to Louisville

Explore cheap flight options specifically provided by American Airlines for the route between St. Louis and Louisville. 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 2,864,334 searches. Data last updated May 3, 2024.
Some of the best deals we've found on American Airlines flights traveling from St. Louis to Louisville. Make sure to examine the flight information before completing your reservation.
Thu 5/305:55 amSTL - SDF
1 stop10h 16mAmerican Airlines
Fri 5/316:46 amSDF - STL
1 stop10h 31mAmerican Airlines
Deal found 5/2$182
Mon 7/16:00 amSTL - SDF
1 stop8h 52mAmerican Airlines
Sun 7/78:18 pmSDF - STL
1 stop4h 36mAmerican Airlines
Deal found 5/2$256
Mon 5/202:00 pmSTL - SDF
1 stop7h 21mAmerican Airlines
Tue 5/216:01 pmSDF - STL
1 stop6h 21mAmerican Airlines
Deal found 5/2$429
Tue 5/710:46 amSTL - SDF
1 stop5h 45mAmerican Airlines
Wed 5/88:30 amSDF - STL
1 stop5h 40mAmerican Airlines
Deal found 5/2$455
Mon 5/202:00 pmSTL - SDF
1 stop7h 21mAmerican Airlines
Tue 5/213:43 pmSDF - STL
2 stops7h 04mAmerican Airlines
Deal found 5/2$470
Mon 5/134:20 pmSTL - SDF
1 stop5h 01mAmerican Airlines
Fri 5/178:14 pmSDF - STL
1 stop4h 08mAmerican Airlines
Deal found 5/2$474
Mon 5/134:20 pmSTL - SDF
1 stop5h 01mAmerican Airlines
Fri 5/177:20 amSDF - STL
2 stops9h 08mAmerican Airlines
Deal found 5/2$493
Mon 5/131:01 pmSTL - SDF
2 stops10h 07mAmerican Airlines
Fri 5/177:20 amSDF - STL
2 stops9h 08mAmerican Airlines
Deal found 5/2$499
Mon 5/132:00 pmSTL - SDF
1 stop7h 21mAmerican Airlines
Wed 5/1511:12 amSDF - STL
2 stops9h 18mAmerican Airlines
Deal found 5/2$516

Cheap St. Louis to Louisville flights in May & June 2024

Find cheap flight options from St. Louis to Louisville specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,864,334 searches. Prices were last updated on May 3, 2024.
Listed are some of the best fares we've found on flights departing from St. Louis to Louisville in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Thu 5/305:55 amSTL - SDF
1 stop10h 16mAmerican Airlines
Fri 5/316:46 amSDF - STL
1 stop10h 31mAmerican Airlines
Deal found 5/2$182
Thu 5/236:19 pmSTL - SDF
1 stop13h 25mSpirit Airlines
Sun 5/2610:29 amSDF - STL
1 stop8h 00mSpirit Airlines
Deal found 5/3$191
Thu 5/236:19 pmSTL - SDF
2 stops27h 55mSpirit Airlines
Sun 5/2610:29 amSDF - STL
1 stop8h 00mSpirit Airlines
Deal found 5/3$219
Mon 5/134:05 pmSTL - SDF
3 stops30h 09mSpirit Airlines
Wed 5/156:27 pmSDF - STL
2 stops25h 13mSpirit Airlines
Deal found 5/2$244
Thu 5/237:45 amSTL - SDF
3 stops23h 59mMultiple Airlines
Sun 5/2610:29 amSDF - STL
1 stop8h 00mMultiple Airlines
Deal found 5/3$264
Mon 5/134:05 pmSTL - SDF
3 stops30h 09mMultiple Airlines
Wed 5/158:52 pmSDF - STL
3 stops40h 28mMultiple Airlines
Deal found 5/2$275
Mon 5/134:05 pmSTL - SDF
2 stops21h 02mSpirit Airlines
Wed 5/156:27 pmSDF - STL
2 stops25h 13mSpirit Airlines
Deal found 5/2$277
Sun 5/126:19 pmSTL - SDF
1 stop14h 10mSpirit Airlines
Tue 5/146:27 pmSDF - STL
2 stops17h 19mSpirit Airlines
Deal found 5/3$295
Thu 5/306:19 pmSTL - SDF
1 stop13h 25mMultiple Airlines
Fri 5/3111:57 amSDF - STL
2 stops23h 31mMultiple Airlines
Deal found 5/2$297

St. Louis to Louisville 2024 flight deals

Discover exclusive flight deals for travel between St. Louis and Louisville in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,864,334 searches. Data last updated May 3, 2024.
Listed are some of the best fares we've found on flights departing from St. Louis to Louisville in 2024. If these deals don't appeal to you, be sure to come back soon for more options.
Thu 5/305:55 amSTL - SDF
1 stop10h 16mAmerican Airlines
Fri 5/316:46 amSDF - STL
1 stop10h 31mAmerican Airlines
Deal found 5/2$182
Thu 5/236:19 pmSTL - SDF
1 stop13h 25mSpirit Airlines
Sun 5/2610:29 amSDF - STL
1 stop8h 00mSpirit Airlines
Deal found 5/3$191
Thu 5/236:19 pmSTL - SDF
2 stops27h 55mSpirit Airlines
Sun 5/2610:29 amSDF - STL
1 stop8h 00mSpirit Airlines
Deal found 5/3$219
Thu 9/57:30 amSTL - SDF
1 stop10h 09mAmerican Airlines
Mon 9/98:22 pmSDF - STL
1 stop3h 58mAmerican Airlines
Deal found 5/2$236
Mon 5/134:05 pmSTL - SDF
3 stops30h 09mSpirit Airlines
Wed 5/156:27 pmSDF - STL
2 stops25h 13mSpirit Airlines
Deal found 5/2$244
Mon 7/16:00 amSTL - SDF
1 stop8h 52mAmerican Airlines
Sun 7/78:18 pmSDF - STL
1 stop4h 36mAmerican Airlines
Deal found 5/2$256
Thu 5/237:45 amSTL - SDF
3 stops23h 59mMultiple Airlines
Sun 5/2610:29 amSDF - STL
1 stop8h 00mMultiple Airlines
Deal found 5/3$264
Mon 5/134:05 pmSTL - SDF
3 stops30h 09mMultiple Airlines
Wed 5/158:52 pmSDF - STL
3 stops40h 28mMultiple Airlines
Deal found 5/2$275
Mon 5/134:05 pmSTL - SDF
2 stops21h 02mSpirit Airlines
Wed 5/156:27 pmSDF - STL
2 stops25h 13mSpirit Airlines
Deal found 5/2$277

St. Louis to Louisville flights leaving soon

Find last-minute flight options from St. Louis to Louisville 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 2,864,334 searches. Data last updated May 3, 2024.
Users seeking a last-minute flight from St. Louis to Louisville should consider booking one of these fares. Users should examine the flight details to ensure there are no surprises.
Mon 5/134:05 pmSTL - SDF
3 stops30h 09mSpirit Airlines
Wed 5/156:27 pmSDF - STL
2 stops25h 13mSpirit Airlines
Deal found 5/2$244
Mon 5/134:05 pmSTL - SDF
3 stops30h 09mMultiple Airlines
Wed 5/158:52 pmSDF - STL
3 stops40h 28mMultiple Airlines
Deal found 5/2$275
Mon 5/134:05 pmSTL - SDF
2 stops21h 02mSpirit Airlines
Wed 5/156:27 pmSDF - STL
2 stops25h 13mSpirit Airlines
Deal found 5/2$277
Sun 5/126:19 pmSTL - SDF
1 stop14h 10mSpirit Airlines
Tue 5/146:27 pmSDF - STL
2 stops17h 19mSpirit Airlines
Deal found 5/3$295
Sun 5/126:19 pmSTL - SDF
1 stop14h 10mMultiple Airlines
Tue 5/146:27 pmSDF - STL
3 stops22h 48mMultiple Airlines
Deal found 5/3$333
Sun 5/126:19 pmSTL - SDF
1 stop14h 10mSpirit Airlines
Tue 5/147:43 amSDF - STL
1 stop6h 54mSpirit Airlines
Deal found 5/3$337
Sun 5/1212:00 pmSTL - SDF
3 stops22h 57mMultiple Airlines
Tue 5/146:27 pmSDF - STL
2 stops17h 19mMultiple Airlines
Deal found 5/3$396
Sun 5/1212:00 pmSTL - SDF
3 stops22h 57mMultiple Airlines
Tue 5/146:27 pmSDF - STL
3 stops22h 48mMultiple Airlines
Deal found 5/3$432
Wed 5/87:30 amSTL - SDF
1 stop6h 28mAmerican Airlines
Wed 5/88:14 pmSDF - STL
1 stop4h 08mAmerican Airlines
Deal found 5/2$455

One-way flights to Louisville from St. Louis

Search for one-way flight options from St. Louis to Louisville. 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 2,864,334 searches. Data last updated May 3, 2024.
Take a look at some of the one-way flights we've detected from St. Louis to Louisville. For those needing a return trip from St. Louis, there is a search form available above.
Sat 5/185:15 pmSTL - SDF
1 stop14h 29mSpirit Airlines
Deal found 5/2$54
Sat 5/1811:39 amSTL - SDF
2 stops20h 05mSpirit Airlines
Deal found 5/2$121
Sat 5/1811:39 amSTL - SDF
3 stops20h 05mSpirit Airlines
Deal found 5/2$140
Wed 5/1511:36 amSTL - SDF
3 stops31h 45mSpirit Airlines
Deal found 5/3$227
Wed 5/1511:09 amSTL - SDF
2 stops10h 12mAmerican Airlines
Deal found 5/3$262

Find flights from St. Louis to Louisville within your budget

Customize your flight search to find flights from St. Louis to Louisville 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 2,864,334 searches. Data last updated May 3, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$182 - $472

Route

Depart

Return

Price

Lambert-St LouisLouisville Intl

STL - SDF

STLSDF

Lambert-St Louis

Thu 5/30

1 stop10h 16m

Louisville Intl

Fri 5/31

1 stop10h 31m

$182

Lambert-St LouisLouisville Intl

STL - SDF

STLSDF

Lambert-St Louis

Thu 5/23

1 stop13h 25m

Louisville Intl

Sun 5/26

1 stop8h 00m

$191

Lambert-St LouisLouisville Intl

STL - SDF

STLSDF

Lambert-St Louis

Thu 5/23

2 stops27h 55m

Louisville Intl

Sun 5/26

1 stop8h 00m

$219

Lambert-St LouisLouisville Intl

STL - SDF

STLSDF

Lambert-St Louis

Mon 5/13

3 stops30h 09m

Louisville Intl

Wed 5/15

2 stops25h 13m

$244

Lambert-St LouisLouisville Intl

STL - SDF

STLSDF

Lambert-St Louis

Mon 7/1

1 stop8h 52m

Louisville Intl

Sun 7/7

1 stop4h 36m

$256

Lambert-St LouisLouisville Intl

STL - SDF

STLSDF

Lambert-St Louis

Thu 5/23

3 stops23h 59m

Louisville Intl

Sun 5/26

1 stop8h 00m

$264

Lambert-St LouisLouisville Intl

STL - SDF

STLSDF

Lambert-St Louis

Mon 5/13

3 stops30h 09m

Louisville Intl

Wed 5/15

3 stops40h 28m

$275

Lambert-St LouisLouisville Intl

STL - SDF

STLSDF

Lambert-St Louis

Tue 5/14

1 stop4h 15m

Louisville Intl

Wed 5/15

1 stop3h 36m

$346

Lambert-St LouisLouisville Intl

STL - SDF

STLSDF

Lambert-St Louis

Mon 5/13

1 stop5h 08m

Louisville Intl

Wed 5/15

1 stop4h 21m

$472

Flights are sorted by cheapest first

Deals found on 5/2

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

Use this chart to determine the cheapest time to fly round-trip from St. Louis to Louisville. Price data was last updated on April 28, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their St. Louis to Louisville flight should consider departing on Wednesday mornings when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Louisville by month

Plan your trip from St. Louis to Louisville by taking into account the cheapest months to travel. The average price of a one-way flight from St. Louis to Louisville is currently $161 while a round-trip flight costs $272. Price data was last updated on April 28, 2024.

Currently, January is the cheapest month in which you can book a flight from St. Louis to Louisville (average of $287). Flying from St. Louis to Louisville in April is currently the most expensive (average of $372). 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

$287

February

$332

March

$359

April

$372

May

$353

June

$356

July

$344

August

$304

September

$302

October

$328

November

$337

December

$316

Temperature and rainfall in Louisville by month

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

SDF

Temperature

35.6 - 78.8 °F

Reviews of airlines servicing Louisville

Get insights into the airlines that provide service to Louisville. 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 Louisville. Reviews last updated May 3, 2024.
Get a feel of what it's like to fly with Delta, American Airlines and Spirit Airlines from St. Louis to Louisville by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good
10,848 reviews

Boarding

8.2

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.1

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

8.1
Very good
10,848 reviews
8.1
Very good
10,848 reviews

Boarding

8.2

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.1

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.4
Good
11,134 reviews
8.1
Very good
10,848 reviews

Boarding

8.2

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.1

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.3
Good
14,755 reviews
8.1
Very good
10,848 reviews

Boarding

8.2

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.1

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

6.4
Okay
8,730 reviews
8.1
Very good
10,848 reviews

Boarding

8.2

Crew

8.6

Food

7.4

Entertainment

8.0

Overall

8.1

Comfort

7.9

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Louisville. 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 Louisville for under $200 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Louisville for under $200. The cheapest flight booked recently is on American Airlines for just $182, but on average you can expect to pay $313.

  • Are there last-minute flights available from St. Louis to Louisville for under $300?

    There are currently 17+ open flights from St. Louis to Louisville within the next 7 days for less than $300.

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

    Our cheapest airline available from St. Louis to Louisville is American Airlines. Our recent data shows that you can find tickets from as low as $182 on this airline. Additional options worth looking into are Spirit Airlines and Delta, starting at $191 and $346 round-trip. These flights start at 82% lower than the current average price 3 months from now.

  • What does STL to SDF mean?

    STL stands for Lambert-St Louis Airport, while SDF stands for Louisville Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry.

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

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

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

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

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

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

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

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

    Many airlines flying from St. Louis to Louisville 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 Louisville?

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

    The St. Louis to Louisville flight deals you see on this page were last updated on 5/3.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from St. Louis to Louisville

Discover the top 2 airlines that operate flights from St. Louis to Louisville. 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 2,864,334 searches. Data last updated May 3, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$173Average$371FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$320Average$472FlexibilityNo cancel feeOn-timeN/A
Search Delta flights

Search flights from St. Louis to Louisville by cabin class

Find flights from St. Louis to Louisville, based on your preferred cabin class, be it economy, premium economy, business, or first class.

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 Louisville?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from St. Louis to Louisville. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

Cheapflights simply makes it quick and affordable to book flights from St. Louis to Louisville by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Yes! Cheapflights helps users easily find flights from St. Louis to Louisville with no change fees.

Can Cheapflights notify me if prices for flights from St. Louis to Louisville 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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