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Cheap flights from St. Louis to Louisville (STL - SDF) from $99

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 9/23. 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
Jun 2 — Jun 91
From?
To?
Sun 6/2
Sun 6/9
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 May 28, 2024.

Popular in

October

Cheapest in

March

Round-trip from

$287

One-way from

$163
High demand for flights, 27% potential price rise
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Best time to find cheap flights, 39% potential price drop
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From Lambert-St Louis to Louisville Intl
Search Deals
One-way flight from Lambert-St Louis to Louisville Intl
Search Deals

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 October. For low rates, March can be a great choice for travel to Louisville. Flights to Louisville from St. Louis in March are about $394 on average during March, but can be found for as low as $165.

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 24% on airfare.

Cheap Spirit Airlines flights from St. Louis to Louisville

Explore cheap flight options specifically provided by Spirit 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 2,740,132 searches. Data last updated May 28, 2024.
Find some of the cheapest Spirit Airlines 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.
Sun 6/235:22 pmSTL - SDF
1 stop15h 40mSpirit Airlines
Sun 6/3011:03 amSDF - STL
1 stop6h 29mSpirit Airlines
Deal found 5/26$274
Mon 6/172:41 pmSTL - SDF
3 stops31h 37mSpirit Airlines
Fri 6/2111:03 amSDF - STL
2 stops24h 31mSpirit Airlines
Deal found 5/27$414
Sun 6/95:22 pmSTL - SDF
2 stops28h 56mSpirit Airlines
Tue 6/116:10 pmSDF - STL
2 stops19h 55mSpirit Airlines
Deal found 5/28$455

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 2,740,132 searches. Data last updated May 28, 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.
Mon 6/176:08 pmSTL - SDF
1 stop15h 42mAmerican Airlines
Fri 6/218:16 pmSDF - STL
1 stop4h 47mAmerican Airlines
Deal found 5/27$346
Mon 6/173:27 pmSTL - SDF
1 stop5h 40mAmerican Airlines
Fri 6/217:25 amSDF - STL
2 stops7h 51mAmerican Airlines
Deal found 5/27$458
Sun 6/93:27 pmSTL - SDF
1 stop5h 40mAmerican Airlines
Tue 6/118:22 amSDF - STL
2 stops7h 04mAmerican Airlines
Deal found 5/28$473

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 2,740,132 searches. Prices were last updated on May 28, 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.
Sun 6/235:22 pmSTL - SDF
1 stop15h 40mSpirit Airlines
Sun 6/3011:03 amSDF - STL
1 stop6h 29mSpirit Airlines
Deal found 5/26$274
Sun 6/235:22 pmSTL - SDF
2 stops14h 26mMultiple Airlines
Sun 6/3011:03 amSDF - STL
1 stop6h 29mMultiple Airlines
Deal found 5/26$330
Mon 6/176:08 pmSTL - SDF
1 stop15h 42mAmerican Airlines
Fri 6/218:16 pmSDF - STL
1 stop4h 47mAmerican Airlines
Deal found 5/27$346
Sun 6/235:22 pmSTL - SDF
1 stop15h 40mMultiple Airlines
Sun 6/3011:03 amSDF - STL
3 stops33h 52mMultiple Airlines
Deal found 5/26$375
Mon 6/172:41 pmSTL - SDF
3 stops31h 37mSpirit Airlines
Fri 6/2111:03 amSDF - STL
2 stops24h 31mSpirit Airlines
Deal found 5/27$414
Sun 6/235:22 pmSTL - SDF
2 stops14h 26mMultiple Airlines
Sun 6/3011:03 amSDF - STL
3 stops33h 52mMultiple Airlines
Deal found 5/26$417
Mon 6/172:41 pmSTL - SDF
2 stops19h 27mMultiple Airlines
Fri 6/2111:03 amSDF - STL
2 stops24h 31mMultiple Airlines
Deal found 5/27$448
Mon 6/172:41 pmSTL - SDF
3 stops31h 37mMultiple Airlines
Fri 6/2112:50 pmSDF - STL
3 stops29h 38mMultiple Airlines
Deal found 5/27$452
Mon 6/173:27 pmSTL - SDF
1 stop5h 40mAmerican Airlines
Fri 6/217:25 amSDF - STL
2 stops7h 51mAmerican Airlines
Deal found 5/27$458

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 2,740,132 searches. Data last updated May 28, 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.
Sun 6/235:22 pmSTL - SDF
1 stop15h 40mSpirit Airlines
Sun 6/3011:03 amSDF - STL
1 stop6h 29mSpirit Airlines
Deal found 5/26$274
Sun 6/235:22 pmSTL - SDF
2 stops14h 26mMultiple Airlines
Sun 6/3011:03 amSDF - STL
1 stop6h 29mMultiple Airlines
Deal found 5/26$330
Mon 6/176:08 pmSTL - SDF
1 stop15h 42mAmerican Airlines
Fri 6/218:16 pmSDF - STL
1 stop4h 47mAmerican Airlines
Deal found 5/27$346
Sun 6/235:22 pmSTL - SDF
1 stop15h 40mMultiple Airlines
Sun 6/3011:03 amSDF - STL
3 stops33h 52mMultiple Airlines
Deal found 5/26$375
Mon 6/172:41 pmSTL - SDF
3 stops31h 37mSpirit Airlines
Fri 6/2111:03 amSDF - STL
2 stops24h 31mSpirit Airlines
Deal found 5/27$414
Sun 6/235:22 pmSTL - SDF
2 stops14h 26mMultiple Airlines
Sun 6/3011:03 amSDF - STL
3 stops33h 52mMultiple Airlines
Deal found 5/26$417
Mon 6/172:41 pmSTL - SDF
2 stops19h 27mMultiple Airlines
Fri 6/2111:03 amSDF - STL
2 stops24h 31mMultiple Airlines
Deal found 5/27$448
Mon 6/172:41 pmSTL - SDF
3 stops31h 37mMultiple Airlines
Fri 6/2112:50 pmSDF - STL
3 stops29h 38mMultiple Airlines
Deal found 5/27$452
Mon 6/173:27 pmSTL - SDF
1 stop5h 40mAmerican Airlines
Fri 6/217:25 amSDF - STL
2 stops7h 51mAmerican Airlines
Deal found 5/27$458

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 2,740,132 searches. Data last updated May 28, 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.
Mon 9/234:31 pmSTL - SDF
1 stop6h 13mSpirit Airlines
Deal found 5/26$99
Mon 9/234:31 pmSTL - SDF
2 stops24h 09mSpirit Airlines
Deal found 5/26$102
Mon 9/234:31 pmSTL - SDF
3 stops24h 09mSpirit Airlines
Deal found 5/26$125
Wed 6/267:00 amSTL - SDF
1 stop6h 48mAmerican Airlines
Deal found 5/27$136
Wed 6/2612:15 pmSTL - SDF
3 stops29h 35mMultiple Airlines
Deal found 5/27$163
Fri 6/285:38 pmSTL - SDF
1 stop5h 14mAmerican Airlines
Deal found 5/27$166
Wed 6/265:15 amSTL - SDF
2 stops9h 10mAmerican Airlines
Deal found 5/27$232
Fri 6/283:07 pmSTL - SDF
3 stops24h 30mSpirit Airlines
Deal found 5/27$282

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 2,740,132 searches. Data last updated May 28, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$274 - $459

Route

Depart

Return

Price

Lambert-St LouisLouisville Intl

STL - SDF

STLSDF

Lambert-St Louis

Sun 6/23

1 stop15h 40m

Louisville Intl

Sun 6/30

1 stop6h 29m

$274

Lambert-St LouisLouisville Intl

STL - SDF

STLSDF

Lambert-St Louis

Sun 6/23

2 stops14h 26m

Louisville Intl

Sun 6/30

1 stop6h 29m

$330

Lambert-St LouisLouisville Intl

STL - SDF

STLSDF

Lambert-St Louis

Mon 6/17

1 stop15h 42m

Louisville Intl

Fri 6/21

1 stop4h 47m

$346

Lambert-St LouisLouisville Intl

STL - SDF

STLSDF

Lambert-St Louis

Sun 6/23

1 stop15h 40m

Louisville Intl

Sun 6/30

3 stops33h 52m

$375

Lambert-St LouisLouisville Intl

STL - SDF

STLSDF

Lambert-St Louis

Sun 6/9

3 stops23h 08m

Louisville Intl

Tue 6/11

3 stops43h 40m

$406

Lambert-St LouisLouisville Intl

STL - SDF

STLSDF

Lambert-St Louis

Sun 6/9

2 stops28h 56m

Louisville Intl

Tue 6/11

3 stops43h 40m

$412

Lambert-St LouisLouisville Intl

STL - SDF

STLSDF

Lambert-St Louis

Mon 6/17

3 stops31h 37m

Louisville Intl

Fri 6/21

2 stops24h 31m

$414

Lambert-St LouisLouisville Intl

STL - SDF

STLSDF

Lambert-St Louis

Mon 6/17

1 stop5h 40m

Louisville Intl

Fri 6/21

2 stops7h 51m

$458

Lambert-St LouisLouisville Intl

STL - SDF

STLSDF

Lambert-St Louis

Sun 6/9

1 stop4h 24m

Louisville Intl

Tue 6/11

1 stop7h 01m

$459

Flights are sorted by cheapest first

Deals found on 5/26

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 May 19, 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

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.

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 28, 2024.
Get a feel of what it's like to fly with Spirit Airlines and American 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.
Delta
8.0
Very good
10,476 reviews
Check prices

Food

7.4

Crew

8.6

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

8.0

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.

Delta
8.0
Very good
10,476 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Food

7.4

Crew

8.6

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

8.0

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.

American Airlines
7.3
Good
14,316 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Food

7.4

Crew

8.6

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

8.0

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.

Spirit Airlines
6.4
Okay
8,617 reviews
Delta
8.0
Very good
10,476 reviews
Check prices

Food

7.4

Crew

8.6

Comfort

7.9

Overall

8.0

Boarding

8.2

Entertainment

8.0

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 $300 on Cheapflights?

    Yes, there are multiple flights from St. Louis to Louisville for under $300. The cheapest flight booked recently is on Spirit Airlines for just $274, but on average you can expect to pay $413.

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

    Our cheapest airline available from St. Louis to Louisville is Spirit Airlines. Our recent data shows that you can find tickets from as low as $274 on this airline. Additional options worth looking into are American Airlines and Delta, starting at $346 and $459 round-trip. These flights start at 30% 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 5/27.

  • When is the best time 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 $287). Flying from St. Louis to Louisville in April is currently the most expensive (average of $373). 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

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Alternative routes for St. Louis to Louisville
See prices for flight routes from nearby airports that may be better suited for you.

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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 2,740,132 searches. Data last updated May 28, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$173Average$371FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
DeltaCheapest$320Average$472FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
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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.
First Class
Business Class
Prem Econ Class
Economy Class

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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 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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