$239+ 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — STL
Nov 7 — Nov 141
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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Best
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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 October 8, 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 October 8, 2026.
This Delta deal was found by Cheapflights users on 10/6. 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.
Sat 11/147:05 am -
1 stop7h 18m
Mon 11/1610:20 am -
1 stop5h 57m
Deal found 10/6![Delta logo]()
$239
This Southwest deal was found by Cheapflights users on 10/6. 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
Mon 11/166:20 am -
1 stop3h 10m
Deal found 10/6![Southwest logo]()
$244
This Delta deal was found by Cheapflights users on 10/7. 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.
Fri 12/45:59 pm -
1 stop7h 06m
Mon 12/72:33 pm -
1 stop3h 40m
Deal found 10/7![Delta logo]()
$270
This Southwest deal was found by Cheapflights users on 10/7. 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 12/43:50 pm -
2 stops7h 05m
Mon 12/72:25 pm -
1 stop5h 05m
Deal found 10/7![Southwest logo]()
$291
This United Airlines deal was found by Cheapflights users on 10/7. 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 11/47:00 am -
1 stop6h 10m
Wed 11/1111:29 am -
1 stop8h 05m
Deal found 10/7![United Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 10/6. 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.
Fri 12/185:59 pm -
1 stop7h 06m
Sun 12/207:05 am -
1 stop5h 30m
Deal found 10/6![Delta logo]()
$339
This Southwest deal was found by Cheapflights users on 10/6. 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 12/187:15 pm -
1 stop5h 55m
Sun 12/202:55 pm -
2 stops7h 10m
Deal found 10/6![Southwest logo]()
$344
This Southwest deal was found by Cheapflights users on 10/5. 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.
Tue 11/245:10 am -
1 stop5h 25m
Sun 11/295:55 pm -
1 stop5h 45m
Deal found 10/5![Southwest logo]()
$352
This United Airlines deal was found by Cheapflights users on 10/5. 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 10/309:17 am -
1 stop3h 53m
Sun 11/110:53 am -
1 stop6h 39m
Deal found 10/5![United Airlines logo]()
$387
This Southwest deal was found by Cheapflights users on 10/4. 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.
Fri 10/3011:50 am -
2 stops8h 15m
Sun 11/15:45 am -
1 stop3h 20m
Deal found 10/4![Southwest logo]()
$393
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 October 8, 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 October 8, 2026.
This Delta deal was found by Cheapflights users on 10/6. 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.
Tue 3/210:43 am -
1 stop5h 00m
Thu 3/46:59 pm -
1 stop4h 03m
Deal found 10/6![Delta logo]()
$322
This United Airlines deal was found by Cheapflights users on 10/7. 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 2/38:50 am -
1 stop4h 25m
Thu 2/410:45 am -
1 stop6h 44m
Deal found 10/7![United Airlines logo]()
$341
This Southwest deal was found by Cheapflights users on 10/6. 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 12/216:35 am -
2 stops9h 45m
Mon 1/410:30 am -
1 stop3h 35m
Deal found 10/6![Southwest logo]()
$344
This Delta deal was found by Cheapflights users on 10/6. 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.
Fri 12/185:59 pm -
1 stop7h 06m
Sun 12/207:05 am -
1 stop5h 30m
Deal found 10/6![Delta logo]()
$339
This Southwest deal was found by Cheapflights users on 10/7. 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 12/43:50 pm -
2 stops7h 05m
Mon 12/710:55 am -
2 stops8h 40m
Deal found 10/7![Southwest logo]()
$349
This Southwest deal was found by Cheapflights users on 10/5. 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 10/306:55 pm -
1 stop6h 40m
Sun 11/15:00 am -
1 stop5h 10m
Deal found 10/5![Southwest logo]()
$418
This Southwest deal was found by Cheapflights users on 10/4. 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.
Thu 10/296:15 pm -
2 stops6h 05m
Sat 10/319:25 am -
1 stop6h 10m
Deal found 10/4![Southwest logo]()
$430
This Southwest deal was found by Cheapflights users on 10/5. 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.
Tue 11/246:35 am -
2 stops9h 45m
Sun 11/296:00 am -
2 stops7h 10m
Deal found 10/5![Southwest logo]()
$486
Last-minute flights from Louisville to St. LouisDiscover last-minute flight deals from Louisville to St. Louis. Data last updated October 8, 2026 and is based on user searches.
Discover last-minute flight deals from Louisville to St. Louis. Data last updated October 8, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:00 am -
1 stop5h 51m
Sat 10/316:47 am -
1 stop5h 53m
Deal found 10/4![Delta logo]()
$425
This United Airlines deal was found by Cheapflights users on 10/5. 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 10/309:17 am -
1 stop3h 53m
Sun 11/110:53 am -
1 stop6h 39m
Deal found 10/5![United Airlines logo]()
$387
This Southwest deal was found by Cheapflights users on 10/4. 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.
Fri 10/3011:50 am -
2 stops8h 15m
Sun 11/15:45 am -
1 stop3h 20m
Deal found 10/4![Southwest logo]()
$393
This United Airlines deal was found by Cheapflights users on 10/7. 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 11/47:00 am -
1 stop6h 10m
Wed 11/1111:29 am -
1 stop8h 05m
Deal found 10/7![United Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 10/6. 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.
Sat 11/147:05 am -
1 stop7h 18m
Mon 11/1610:20 am -
1 stop5h 57m
Deal found 10/6![Delta logo]()
$239
This Southwest deal was found by Cheapflights users on 10/6. 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
Mon 11/166:20 am -
1 stop3h 10m
Deal found 10/6![Southwest logo]()
$244
This Southwest deal was found by Cheapflights users on 10/5. 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.
Tue 11/245:10 am -
1 stop5h 25m
Sun 11/295:55 pm -
1 stop5h 45m
Deal found 10/5![Southwest logo]()
$352
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 October 8, 2026.
Search for one-way flight options from Louisville to St. Louis. Find affordable one-way fares based on user searches. Data last updated October 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/7. 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.
Mon 10/197:35 pm -
3 stops44h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Multiple Airlines logo]()
$260
This United Airlines deal was found by Cheapflights users on 10/7. 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 11/232:10 pm -
1 stop10h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![United Airlines logo]()
$279
This Southwest deal was found by Cheapflights users on 10/7. 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 10/195:10 pm -
1 stop7h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Southwest logo]()
$358
This Kiwi.com deal was found by Cheapflights users on 10/7. 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.
Tue 10/209:53 am -
3 stops29h 32m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Multiple Airlines logo]()
$920
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 October 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $239 (Delta) |
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 October 8, 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
LouisvilleSt. Louis
SDF Louisville Intl - STL Lambert-St Louis
SDFSTL
Louisville Intl
Mon 11/23
2:10 pm-11:24 pm
1 stop10h 14m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$279
LouisvilleSt. Louis
SDF Louisville Intl - STL Lambert-St Louis
SDFSTL
Louisville Intl
Tue 3/2
10:43 am-2:43 pm
1 stop5h 00m
Lambert-St Louis
Thu 3/4
6:59 pm-12:02 am
1 stop4h 03m
$322
LouisvilleSt. Louis
SDF Louisville Intl - STL Lambert-St Louis
SDFSTL
Louisville Intl
Fri 12/18
5:59 pm-12:05 am
1 stop7h 06m
Lambert-St Louis
Sun 12/20
7:05 am-1:35 pm
1 stop5h 30m
$339
LouisvilleSt. Louis
SDF Louisville Intl - STL Lambert-St Louis
SDFSTL
Louisville Intl
Wed 2/3
8:50 am-12:15 pm
1 stop4h 25m
Lambert-St Louis
Thu 2/4
10:45 am-6:29 pm
1 stop6h 44m
$341
LouisvilleSt. Louis
SDF Louisville Intl - STL Lambert-St Louis
SDFSTL
Louisville Intl
Mon 12/21
6:35 am-3:20 pm
2 stops9h 45m
Lambert-St Louis
Mon 1/4
10:30 am-3:05 pm
1 stop3h 35m
$344
LouisvilleSt. Louis
SDF Louisville Intl - STL Lambert-St Louis
SDFSTL
Louisville Intl
Fri 12/4
3:50 pm-9:55 pm
2 stops7h 05m
Lambert-St Louis
Mon 12/7
10:55 am-8:35 pm
2 stops8h 40m
$349
LouisvilleSt. Louis
SDF Louisville Intl - STL Lambert-St Louis
SDFSTL
Louisville Intl
Mon 10/19
5:10 pm-11:20 pm
1 stop7h 10m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$358
Quickest round-trip
LouisvilleSt. Louis
SDF Louisville Intl - STL Lambert-St Louis
SDFSTL
Louisville Intl
Tue 10/20
10:25 am-2:17 pm
1 stop4h 52m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$358
LouisvilleSt. Louis
SDF Louisville Intl - STL Lambert-St Louis
SDFSTL
Louisville Intl
Tue 10/20
7:10 am-1:05 pm
2 stops6h 55m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$363
LouisvilleSt. Louis
SDF Louisville Intl - STL Lambert-St Louis
SDFSTL
Louisville Intl
Fri 10/30
6:55 pm-12:35 am
1 stop6h 40m
Lambert-St Louis
Sun 11/1
5:00 am-11:10 am
1 stop5h 10m
$418
Showing 1-10 of 12 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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 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
Chesterfield
Maryland Heights
Collinsville
Edwardsville
Glencoe
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