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$178+ Cheap flights from St. Louis to Louisville (STL - SDF)

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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SDF
Jan 25 — Feb 11
Sat 1/25
Sat 2/1
1 adult, Economy
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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 January 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$277
(United Airlines)

One-way from

$188
(American Airlines)

Popular in

February

Cheapest in

May

Average price

$449
Provider with most accurate pricing for Lambert-St Louis-Louisville Intl flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Louisville Intl flights.
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From Lambert-St Louis to Louisville Intl
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One-way flight from Lambert-St Louis to Louisville Intl
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High demand for flights, 17% potential price rise
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Best time to find cheap flights, 7% potential price drop
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Average for round-trip flights in January 2025
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Find flight deals from St. Louis to Louisville

Cheapest flights from St. Louis to Louisville
Explore the most affordable flight options available from St. Louis to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 20, 2025.

This American Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/43:10 pmSTL - SDF
1 stop4h 08mAmerican Airlines
Sat 2/83:41 pmSDF - STL
2 stops7h 45mAmerican Airlines
Deal found 1/19$282
This Delta deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/56:43 amSTL - SDF
1 stop3h 48mDelta
Sun 2/96:00 amSDF - STL
1 stop4h 21mDelta
Deal found 1/19$326
This United Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/45:30 pmSTL - SDF
1 stop4h 00mUnited Airlines
Sat 2/82:00 pmSDF - STL
1 stop4h 36mUnited Airlines
Deal found 1/20$337
This Southwest deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/187:30 amSTL - SDF
1 stop5h 10mSouthwest
Fri 4/185:00 pmSDF - STL
1 stop5h 15mSouthwest
Deal found 1/18$349
This CheapOair deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/234:28 pmSTL - SDF
1 stop25h 02mSpirit Airlines
Sat 1/257:25 pmSDF - STL
1 stop20h 18mSpirit Airlines
Deal found 1/19$464

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 2,558,603 searches. Data last updated January 20, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Tue 2/4

3:10 pm-8:18 pm

1 stop4h 08m

Louisville Intl

Sat 2/8

3:41 pm-10:26 pm

2 stops7h 45m

$282

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Wed 2/5

6:43 am-11:31 am

1 stop3h 48m

Louisville Intl

Sun 2/9

6:00 am-9:21 am

1 stop4h 21m

$326

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Tue 2/4

5:30 pm-10:30 pm

1 stop4h 00m

Louisville Intl

Sat 2/8

2:00 pm-5:36 pm

1 stop4h 36m

$337

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Fri 4/18

7:30 am-1:40 pm

1 stop5h 10m

Louisville Intl

Fri 4/18

5:00 pm-9:15 pm

1 stop5h 15m

$349

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Fri 7/11

5:40 pm-11:57 pm

1 stop5h 17m

$178

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Sun 2/16

5:45 am-12:11 pm

1 stop5h 26m

$188

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Sun 2/16

5:20 am-1:10 pm

2 stops6h 50m

$193

St. LouisLouisville

STL - SDF

STLSDF

Lambert-St Louis

Thu 3/6

3:25 pm-10:31 pm

1 stop6h 06m

$302

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Compare providers for flights from St. Louis to Louisville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Louisville in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on St. Louis-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on St. Louis-Louisville flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Louisville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from St. Louis to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from St. Louis with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from St. Louis to Louisville

Get recent, data-driven insights about flights from St. Louis to Louisville including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from St. Louis to Louisville?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Louisville (average of $299). Flying from St. Louis to Louisville in April is currently the most expensive (average of $369). 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.

What is the cheapest time of day to fly from STL to SDF?

Find hourly flight availability from St. Louis to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 20, 2025.

One of the essential ways to save on airfare from St. Louis to Louisville is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 21% on airfare.

Rainfall in Louisville by month

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

In terms of precipitation, rainfall in Louisville ranges from 3.1 - 5.3 inches per month. May is typically the wettest month, when rainfall can reach 5.3 in. September is typically the driest time to visit Louisville when rainfall is around 3.1 in.

Temperature in Louisville by month

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

If weather is an important factor for your trip to Louisville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 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 January 20, 2025.
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Food

7.2

Boarding

8.2

Comfort

8.1

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Food

7.2

Boarding

8.2

Comfort

8.1

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Food

7.2

Boarding

8.2

Comfort

8.1

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,982 reviews
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Food

7.2

Boarding

8.2

Comfort

8.1

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Food

7.2

Boarding

8.2

Comfort

8.1

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Spirit Airlines
6.3
Okay
8,113 reviews
Southwest
8.1
Very good
4,659 reviews

Crew

8.7

Food

7.2

Boarding

8.2

Comfort

8.1

Overall

8.1

Entertainment

7.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

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.

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

    Our cheapest airline available from St. Louis to Louisville is United Airlines. Our recent data shows that you can find tickets from as low as $277 on this airline. Additional options worth looking into are American Airlines and Delta, starting at $282 and $326 round-trip. These flights start at 35% lower than the current average price 3 months from now.

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

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $188. Users have also found prices from $193 and $302 on Southwest and United Airlines, respectively.

  • 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.

  • What is the cheapest month to book a flight from St. Louis to Louisville?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Louisville (average of $299). Flying from St. Louis to Louisville in April is currently the most expensive (average of $369). 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.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Jeffersonville
Corydon
Elizabethtown
Bardstown

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Top airline flying from St. Louis to Louisville

Discover the top airline 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 2,558,603 searches. Data last updated January 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$220Average$346FlexibilityNo cancel feeOn-time71%
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