$263+ Cheap flights from Louisville to St. Louis (SDF - STL)
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 11/20. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — STL
Dec 4 — Dec 111
Round-trip
1 adult, Economy
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Find cheap flights from Louisville to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Louisville to St. Louis
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Cheapest flights from Louisville to St. LouisExplore the most affordable flight options available from Louisville to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2026.
Explore the most affordable flight options available from Louisville to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2026.
This American Airlines deal was found by Cheapflights users on 11/4. 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.
Wed 12/210:13 am -
1 stop7h 34m
Wed 12/97:27 am -
1 stop9h 04m
Deal found 11/4![American Airlines logo]()
$303
This Southwest deal was found by Cheapflights users on 11/2. 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.
Thu 12/174:40 pm -
1 stop4h 10m
Thu 12/246:20 am -
1 stop3h 10m
Deal found 11/2![Southwest logo]()
$315
This Southwest deal was found by Cheapflights users on 11/4. 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.
Wed 12/212:10 pm -
1 stop6h 15m
Wed 12/910:30 am -
2 stops9h 05m
Deal found 11/4![Southwest logo]()
$358
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Mon 12/147:10 am -
1 stop6h 12m
Wed 12/166:09 am -
1 stop6h 14m
Deal found 11/2![United Airlines logo]()
$405
This American Airlines deal was found by Cheapflights users on 11/3. 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.
Mon 11/233:27 pm -
1 stop4h 41m
Wed 11/257:26 am -
1 stop13h 11m
Deal found 11/3![American Airlines logo]()
$441
This Southwest deal was found by Cheapflights users on 11/3. 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.
Mon 11/2312:05 pm -
2 stops8h 05m
Wed 11/256:25 pm -
1 stop5h 30m
Deal found 11/3![Southwest logo]()
$452
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Thu 11/195:10 am -
1 stop6h 22m
Sun 11/227:30 am -
1 stop5h 05m
Deal found 11/3![United Airlines logo]()
$569
This Southwest deal was found by Cheapflights users on 11/3. 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.
Thu 11/193:50 pm -
2 stops7h 10m
Sun 11/224:30 pm -
1 stop4h 45m
Deal found 11/3![Southwest logo]()
$574
This Southwest deal was found by Cheapflights users on 10/30. 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.
Sat 11/147:10 am -
2 stops8h 00m
Thu 11/195:30 am -
2 stops9h 05m
Deal found 10/30![Southwest logo]()
$579
Best flights from Louisville to St. LouisDiscover carefully curated flight deals from Louisville to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
Discover carefully curated flight deals from Louisville to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 4, 2026.
This American Airlines deal was found by Cheapflights users on 11/4. 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.
Wed 12/210:13 am -
1 stop7h 34m
Wed 12/97:27 am -
1 stop9h 04m
Deal found 11/4![American Airlines logo]()
$303
This Southwest deal was found by Cheapflights users on 11/2. 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.
Thu 12/174:40 pm -
1 stop4h 10m
Thu 12/246:20 am -
1 stop3h 10m
Deal found 11/2![Southwest logo]()
$315
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Mon 12/147:10 am -
1 stop6h 12m
Wed 12/166:09 am -
1 stop6h 14m
Deal found 11/2![United Airlines logo]()
$405
This Southwest deal was found by Cheapflights users on 11/4. 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.
Wed 12/212:10 pm -
1 stop6h 15m
Wed 12/910:30 am -
2 stops9h 05m
Deal found 11/4![Southwest logo]()
$358
This United Airlines deal was found by Cheapflights users on 10/31. 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.
Wed 2/31:41 pm -
1 stop9h 08m
Thu 2/48:30 am -
1 stop5h 14m
Deal found 10/31![United Airlines logo]()
$405
This Southwest deal was found by Cheapflights users on 11/3. 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.
Thu 1/77:30 am -
2 stops6h 50m
Sun 1/1010:20 am -
2 stops8h 30m
Deal found 11/3![Southwest logo]()
$390
This Southwest deal was found by Cheapflights users on 11/3. 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.
Mon 11/2312:05 pm -
2 stops8h 05m
Wed 11/256:25 pm -
1 stop5h 30m
Deal found 11/3![Southwest logo]()
$452
Last-minute flights from Louisville to St. LouisDiscover last-minute flight deals from Louisville to St. Louis. Data last updated November 4, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to St. Louis. Data last updated November 4, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 10/30. 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.
Sat 11/147:10 am -
2 stops8h 00m
Thu 11/195:30 am -
2 stops9h 05m
Deal found 10/30![Southwest logo]()
$579
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Thu 11/195:10 am -
1 stop6h 22m
Sun 11/227:30 am -
1 stop5h 05m
Deal found 11/3![United Airlines logo]()
$569
This Southwest deal was found by Cheapflights users on 11/3. 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.
Thu 11/193:50 pm -
2 stops7h 10m
Sun 11/224:30 pm -
1 stop4h 45m
Deal found 11/3![Southwest logo]()
$574
This American Airlines deal was found by Cheapflights users on 11/3. 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.
Mon 11/233:27 pm -
1 stop4h 41m
Wed 11/257:26 am -
1 stop13h 11m
Deal found 11/3![American Airlines logo]()
$441
This Southwest deal was found by Cheapflights users on 11/3. 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.
Mon 11/2312:05 pm -
2 stops8h 05m
Wed 11/256:25 pm -
1 stop5h 30m
Deal found 11/3![Southwest logo]()
$452
This American Airlines deal was found by Cheapflights users on 11/4. 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.
Wed 12/210:13 am -
1 stop7h 34m
Wed 12/97:27 am -
1 stop9h 04m
Deal found 11/4![American Airlines logo]()
$303
This Southwest deal was found by Cheapflights users on 11/4. 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.
Wed 12/212:10 pm -
1 stop6h 15m
Wed 12/910:30 am -
2 stops9h 05m
Deal found 11/4![Southwest logo]()
$358
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Mon 12/147:10 am -
1 stop6h 12m
Wed 12/166:09 am -
1 stop6h 14m
Deal found 11/3![United Airlines logo]()
$405
This Southwest deal was found by Cheapflights users on 11/2. 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.
Thu 12/174:40 pm -
1 stop4h 10m
Thu 12/246:20 am -
1 stop3h 10m
Deal found 11/2![Southwest logo]()
$315
One-way flights from Louisville to St. LouisSearch for one-way flight options from Louisville to St. Louis. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
Search for one-way flight options from Louisville to St. Louis. Find affordable one-way fares based on user searches. Data last updated November 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2011:39 am -
2 stops25h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/214:06 pm -
3 stops25h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$269
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Fri 11/209:17 am -
1 stop6h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![United Airlines logo]()
$285
This American Airlines deal was found by Cheapflights users on 11/3. 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.
Fri 11/206:30 pm -
1 stop6h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![American Airlines logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/137:59 pm -
3 stops52h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Multiple Airlines logo]()
$300
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Sat 11/212:15 pm -
1 stop6h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![United Airlines logo]()
$330
This Southwest deal was found by Cheapflights users on 11/2. 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 11/1312:45 pm -
1 stop7h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Southwest logo]()
$368
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Sun 11/225:57 pm -
1 stop22h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![United Airlines logo]()
$405
Find flight deals from Louisville to St. Louis
Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to St. Louis (STL). 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 November 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $303 (American Airlines) |
One-way from | $263 (Kiwi.com) |
Cheapflights Fare Finder
Customize your flight search to find flights from Louisville to St. Louis 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 7,457,451 searches. Data last updated November 4, 2026.
Use the filters below to find and compare flights from Louisville to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
LouisvilleSt. Louis
SDF Louisville Intl - STL Lambert-St Louis
SDFSTL
Louisville Intl
Sat 11/21
2:15 pm-7:23 pm
1 stop6h 08m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$285
LouisvilleSt. Louis
SDF Louisville Intl - STL Lambert-St Louis
SDFSTL
Louisville Intl
Fri 11/20
9:17 am-2:34 pm
1 stop6h 17m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$285
LouisvilleSt. Louis
SDF Louisville Intl - STL Lambert-St Louis
SDFSTL
Louisville Intl
Fri 11/20
6:30 pm-11:54 pm
1 stop6h 24m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$290
LouisvilleSt. Louis
SDF Louisville Intl - STL Lambert-St Louis
SDFSTL
Louisville Intl
Sat 11/21
5:02 am-12:55 pm
2 stops8h 53m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$295
LouisvilleSt. Louis
SDF Louisville Intl - STL Lambert-St Louis
SDFSTL
Louisville Intl
Fri 11/13
7:59 pm-11:16 pm
3 stops52h 17m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$300
LouisvilleSt. Louis
SDF Louisville Intl - STL Lambert-St Louis
SDFSTL
Louisville Intl
Wed 12/2
10:13 am-4:47 pm
1 stop7h 34m
Lambert-St Louis
Wed 12/9
7:27 am-5:31 pm
1 stop9h 04m
$303
LouisvilleSt. Louis
SDF Louisville Intl - STL Lambert-St Louis
SDFSTL
Louisville Intl
Thu 12/17
4:40 pm-7:50 pm
1 stop4h 10m
Lambert-St Louis
Thu 12/24
6:20 am-10:30 am
1 stop3h 10m
$315
LouisvilleSt. Louis
SDF Louisville Intl - STL Lambert-St Louis
SDFSTL
Louisville Intl
Wed 12/2
12:10 pm-5:25 pm
1 stop6h 15m
Lambert-St Louis
Wed 12/9
10:30 am-8:35 pm
2 stops9h 05m
$358
LouisvilleSt. Louis
SDF Louisville Intl - STL Lambert-St Louis
SDFSTL
Louisville Intl
Fri 11/13
12:45 pm-7:10 pm
1 stop7h 25m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$368
LouisvilleSt. Louis
SDF Louisville Intl - STL Lambert-St Louis
SDFSTL
Louisville Intl
Thu 1/7
7:30 am-1:20 pm
2 stops6h 50m
Lambert-St Louis
Sun 1/10
10:20 am-7:50 pm
2 stops8h 30m
$390
Showing 1-10 of 14 resultsSorted by cheapest first
Compare providers for flights from Louisville to St. Louis
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 Louisville to St. Louis in November.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Louisville-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-St. Louis flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Louisville-St. Louis 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 Louisville-St. Louis 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 Louisville to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Louisville with our price prediction graph.
SDF-STL
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.
Related info for your journey
Find useful and relevant information for your journey from Louisville to St. Louis. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
Wentzville
Maryland Heights
Chesterfield
Edwardsville
Glencoe
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