$49+ Cheap flights from St. Louis (STL) to Kentucky
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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
STL — SDF
Aug 25 — Sep 11
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from St. Louis to Kentucky 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 St. Louis to Kentucky
Cheapest
Best
Last-minute
One-way
Cheapest flights from St. Louis to KentuckyExplore the most affordable flight options available from St. Louis to Kentucky. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 26, 2026.
Explore the most affordable flight options available from St. Louis to Kentucky. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 26, 2026.
This Southwest deal was found by Cheapflights users on 7/22. 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 9/108:00 am
STL
- BNA
Nonstop1h 10m
Southwest
Mon 9/148:50 pm
BNA
- STL
Nonstop1h 15m
Southwest
Deal found 7/22![Southwest logo]()
$97
This Southwest deal was found by Cheapflights users on 7/22. 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 8/156:50 am
STL
- BNA
1 stop5h 00m
Southwest
Tue 8/188:55 pm
BNA
- STL
Nonstop1h 15m
Southwest
Deal found 7/22![Southwest logo]()
$107
This Southwest deal was found by Cheapflights users on 7/24. 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 8/205:40 pm
STL
- BNA
Nonstop1h 10m
Southwest
Mon 8/246:00 pm
BNA
- STL
Nonstop1h 10m
Southwest
Deal found 7/24![Southwest logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Sun 8/236:17 pm
STL
- CVG
1 stop16h 04m
Frontier
Sun 8/3012:26 pm
CVG
- STL
1 stop5h 56m
Frontier
Deal found 7/23![Frontier logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 9/2210:35 am
STL
- CVG
1 stop24h 08m
Frontier
Sun 9/2712:48 pm
CVG
- STL
1 stop21h 52m
Frontier
Deal found 7/21![Frontier logo]()
$125
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 8/216:17 pm
STL
- CVG
1 stop16h 04m
Frontier
Mon 8/2412:26 pm
CVG
- STL
1 stop5h 56m
Frontier
Deal found 7/23![Frontier logo]()
$130
This Southwest deal was found by Cheapflights users on 7/25. 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 9/36:05 am
STL
- BNA
2 stops5h 35m
Southwest
Mon 9/76:45 am
BNA
- STL
Nonstop1h 10m
Southwest
Deal found 7/25![Southwest logo]()
$132
This Southwest deal was found by Cheapflights users on 7/24. 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 9/510:15 am
STL
- BNA
1 stop5h 30m
Southwest
Sat 9/1210:05 am
BNA
- STL
2 stops6h 35m
Southwest
Deal found 7/24![Southwest logo]()
$142
This Delta deal was found by Cheapflights users on 7/24. 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 12/106:00 am
STL
- BNA
1 stop6h 21m
Delta
Sat 12/1212:15 pm
BNA
- STL
1 stop5h 46m
Delta
Deal found 7/24![Delta logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 8/144:57 pm
STL
- CVG
1 stop17h 51m
Frontier
Fri 8/2112:26 pm
CVG
- STL
1 stop5h 56m
Frontier
Deal found 7/25![Frontier logo]()
$148
This Flightnetwork deal was found by Cheapflights users on 7/24. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/242:00 pm
STL
- BNA
1 stop4h 03m
Southern / Mokulele
Tue 7/289:30 am
BNA
- STL
1 stop3h 51m
Southern / Mokulele
Deal found 7/24![Southern / Mokulele logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Sun 8/96:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Tue 8/1112:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Deal found 7/21![Frontier logo]()
$168
Best flights from St. Louis to KentuckyDiscover carefully curated flight deals from St. Louis to Kentucky that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 26, 2026.
Discover carefully curated flight deals from St. Louis to Kentucky that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 26, 2026.
This Southwest deal was found by Cheapflights users on 7/22. 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 9/175:40 pm
STL
- BNA
Nonstop1h 10m
Southwest
Sat 9/197:00 am
BNA
- STL
Nonstop1h 15m
Southwest
Deal found 7/22![Southwest logo]()
$97
This Delta deal was found by Cheapflights users on 7/25. 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 12/1010:00 am
STL
- BNA
1 stop3h 21m
Delta
Sat 12/1210:54 am
BNA
- STL
1 stop5h 38m
Delta
Deal found 7/25![Delta logo]()
$147
This Southern / Mokulele deal was found by Cheapflights users on 7/20. 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 Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/249:50 am
STL
- BNA
1 stop3h 58m
Southern / Mokulele
Mon 12/282:35 pm
BNA
- STL
1 stop4h 01m
Southern / Mokulele
Deal found 7/20![Southern / Mokulele logo]()
$172
This Southwest deal was found by Cheapflights users on 7/23. 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 8/208:00 am
STL
- BNA
Nonstop1h 10m
Southwest
Thu 8/279:00 am
BNA
- STL
Nonstop1h 10m
Southwest
Deal found 7/23![Southwest logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 7/22. 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.
Thu 8/136:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Mon 8/177:52 pm
CVG
- STL
1 stop21h 24m
Frontier
Deal found 7/22![Frontier logo]()
$196
This Southwest deal was found by Cheapflights users on 7/23. 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 8/186:30 am
STL
- BNA
1 stop4h 00m
Southwest
Tue 8/256:45 am
BNA
- STL
Nonstop1h 10m
Southwest
Deal found 7/23![Southwest logo]()
$107
This United Airlines deal was found by Cheapflights users on 7/25. 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 8/221:05 pm
STL
- SDF
1 stop5h 01m
United Airlines
Sat 8/299:00 am
SDF
- STL
1 stop6h 57m
United Airlines
Deal found 7/25![United Airlines logo]()
$261
This Southwest deal was found by Cheapflights users on 7/22. 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 9/164:45 pm
STL
- BNA
Nonstop1h 10m
Southwest
Sat 9/1910:05 am
BNA
- STL
2 stops6h 35m
Southwest
Deal found 7/22![Southwest logo]()
$112
This American Airlines deal was found by Cheapflights users on 7/24. 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.
Sat 8/85:05 pm
STL
- TRI
1 stop5h 44m
American Airlines
Wed 8/127:00 am
TRI
- STL
1 stop6h 15m
American Airlines
Deal found 7/24![American Airlines logo]()
$281
This Southwest deal was found by Cheapflights users on 7/24. 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 8/205:40 pm
STL
- BNA
Nonstop1h 10m
Southwest
Mon 8/246:00 pm
BNA
- STL
Nonstop1h 10m
Southwest
Deal found 7/24![Southwest logo]()
$117
This Southwest deal was found by Cheapflights users on 7/23. 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 10/1312:25 pm
STL
- BNA
1 stop5h 00m
Southwest
Mon 10/197:55 pm
BNA
- STL
1 stop3h 20m
Southwest
Deal found 7/23![Southwest logo]()
$117
This Southern / Mokulele deal was found by Cheapflights users on 7/22. 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 Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/62:00 pm
STL
- BNA
1 stop4h 03m
Southern / Mokulele
Mon 8/109:30 am
BNA
- STL
1 stop3h 51m
Southern / Mokulele
Deal found 7/22![Southern / Mokulele logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Thu 8/205:02 pm
STL
- TRI
1 stop15h 13m
Multiple Airlines
Mon 8/242:10 pm
TRI
- STL
2 stops27h 21m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$367
This Southwest deal was found by Cheapflights users on 7/24. 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 9/510:15 am
STL
- BNA
1 stop5h 30m
Southwest
Sat 9/1210:05 am
BNA
- STL
2 stops6h 35m
Southwest
Deal found 7/24![Southwest logo]()
$142
This Delta deal was found by Cheapflights users on 7/25. 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 10/66:05 pm
STL
- CVG
1 stop3h 30m
Delta
Sat 10/1012:19 pm
CVG
- STL
1 stop4h 18m
Delta
Deal found 7/25![Delta logo]()
$279
This American Airlines deal was found by Cheapflights users on 7/23. 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.
Sat 8/221:54 pm
STL
- LEX
1 stop5h 57m
American Airlines
Sat 8/2911:15 am
LEX
- STL
2 stops8h 42m
American Airlines
Deal found 7/23![American Airlines logo]()
$286
This Delta deal was found by Cheapflights users on 7/23. 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 8/226:00 am
STL
- LEX
1 stop5h 11m
Delta
Sat 8/298:00 am
LEX
- STL
1 stop4h 56m
Delta
Deal found 7/23![Delta logo]()
$281
This American Airlines deal was found by Cheapflights users on 7/21. 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.
Thu 8/203:35 pm
STL
- TRI
1 stop6h 15m
American Airlines
Mon 8/245:29 pm
TRI
- STL
1 stop6h 11m
American Airlines
Deal found 7/21![American Airlines logo]()
$289
This United Airlines deal was found by Cheapflights users on 7/23. 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 8/2211:25 am
STL
- LEX
1 stop5h 10m
United Airlines
Tue 8/257:00 am
LEX
- STL
1 stop6h 02m
United Airlines
Deal found 7/23![United Airlines logo]()
$341
This American Airlines deal was found by Cheapflights users on 7/25. 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.
Thu 9/245:18 pm
STL
- TRI
1 stop5h 38m
American Airlines
Tue 9/296:25 am
TRI
- STL
1 stop4h 04m
American Airlines
Deal found 7/25![American Airlines logo]()
$290
This Delta deal was found by Cheapflights users on 7/23. 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 8/1412:52 pm
STL
- LEX
1 stop5h 54m
Delta
Sun 8/166:00 am
LEX
- STL
1 stop6h 46m
Delta
Deal found 7/23![Delta logo]()
$299
This Southwest deal was found by Cheapflights users on 7/23. 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 9/38:00 am
STL
- TYS
1 stop3h 35m
Southwest
Thu 9/102:05 pm
TYS
- STL
1 stop4h 50m
Southwest
Deal found 7/23![Southwest logo]()
$211
This American Airlines deal was found by Cheapflights users on 7/24. 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 8/2810:22 am
STL
- LEX
1 stop5h 03m
American Airlines
Sun 8/306:48 am
LEX
- STL
1 stop7h 06m
American Airlines
Deal found 7/24![American Airlines logo]()
$299
This Delta deal was found by Cheapflights users on 7/22. 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 8/75:23 pm
STL
- TRI
1 stop4h 00m
Delta
Tue 8/111:45 pm
TRI
- STL
1 stop5h 42m
Delta
Deal found 7/22![Delta logo]()
$305
This Southwest deal was found by Cheapflights users on 7/24. 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 9/75:45 am
STL
- TYS
1 stop6h 40m
Southwest
Mon 9/145:45 pm
TYS
- STL
2 stops5h 25m
Southwest
Deal found 7/24![Southwest logo]()
$216
This Southwest deal was found by Cheapflights users on 7/22. 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 9/39:15 am
STL
- TYS
1 stop6h 55m
Southwest
Tue 9/88:05 am
TYS
- STL
2 stops8h 05m
Southwest
Deal found 7/22![Southwest logo]()
$216
This American Airlines deal was found by Cheapflights users on 7/22. 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.
Thu 8/63:25 pm
STL
- LEX
1 stop4h 26m
American Airlines
Mon 8/107:13 pm
LEX
- STL
1 stop4h 27m
American Airlines
Deal found 7/22![American Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 7/22. 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 8/811:52 am
STL
- SDF
1 stop7h 33m
United Airlines
Wed 8/129:00 am
SDF
- STL
1 stop4h 02m
United Airlines
Deal found 7/22![United Airlines logo]()
$458
This Southwest deal was found by Cheapflights users on 7/25. 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 9/810:45 am
STL
- TYS
2 stops8h 10m
Southwest
Tue 9/157:00 am
TYS
- STL
2 stops9h 10m
Southwest
Deal found 7/25![Southwest logo]()
$221
This American Airlines deal was found by Cheapflights users on 7/24. 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.
Sat 8/85:00 am
STL
- LEX
1 stop5h 17m
American Airlines
Wed 8/125:00 pm
LEX
- STL
1 stop6h 40m
American Airlines
Deal found 7/24![American Airlines logo]()
$329
Last-minute flights from St. Louis to KentuckyDiscover last-minute flight deals from St. Louis to Kentucky. Data last updated July 26, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Kentucky. Data last updated July 26, 2026 and is based on user searches.
This Flightnetwork deal was found by Cheapflights users on 7/24. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/242:00 pm
STL
- BNA
1 stop4h 03m
Southern / Mokulele
Tue 7/289:30 am
BNA
- STL
1 stop3h 51m
Southern / Mokulele
Deal found 7/24![Southern / Mokulele logo]()
$161
This KAYAK deal was found by Cheapflights users on 7/22. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/272:00 pm
STL
- BNA
1 stop4h 03m
Southern / Mokulele
Wed 7/299:30 am
BNA
- STL
1 stop3h 51m
Southern / Mokulele
Deal found 7/22![Southern / Mokulele logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/52:00 pm
STL
- BNA
1 stop4h 03m
Southern / Mokulele
Thu 8/139:30 am
BNA
- STL
1 stop3h 51m
Southern / Mokulele
Deal found 7/20![Southern / Mokulele logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 8/84:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Fri 8/1412:53 pm
CVG
- STL
1 stop21h 04m
Frontier
Deal found 7/21![Frontier logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Sun 8/96:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Tue 8/1112:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Deal found 7/21![Frontier logo]()
$168
This Southwest deal was found by Cheapflights users on 7/21. 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 8/114:45 pm
STL
- BNA
Nonstop1h 10m
Southwest
Mon 8/176:00 pm
BNA
- STL
Nonstop1h 10m
Southwest
Deal found 7/21![Southwest logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 8/144:57 pm
STL
- CVG
1 stop17h 51m
Frontier
Fri 8/2112:26 pm
CVG
- STL
1 stop5h 56m
Frontier
Deal found 7/25![Frontier logo]()
$148
This Southwest deal was found by Cheapflights users on 7/22. 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 8/156:50 am
STL
- BNA
1 stop5h 00m
Southwest
Tue 8/188:55 pm
BNA
- STL
Nonstop1h 15m
Southwest
Deal found 7/22![Southwest logo]()
$107
This Southwest deal was found by Cheapflights users on 7/21. 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 8/156:50 am
STL
- BNA
2 stops5h 45m
Southwest
Wed 8/199:15 am
BNA
- STL
1 stop5h 55m
Southwest
Deal found 7/21![Southwest logo]()
$122
This Southwest deal was found by Cheapflights users on 7/24. 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 8/205:40 pm
STL
- BNA
Nonstop1h 10m
Southwest
Mon 8/246:00 pm
BNA
- STL
Nonstop1h 10m
Southwest
Deal found 7/24![Southwest logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 8/216:17 pm
STL
- CVG
1 stop16h 04m
Frontier
Mon 8/2412:26 pm
CVG
- STL
1 stop5h 56m
Frontier
Deal found 7/23![Frontier logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 7/23. 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.
Sun 8/236:17 pm
STL
- CVG
1 stop16h 04m
Frontier
Sun 8/3012:26 pm
CVG
- STL
1 stop5h 56m
Frontier
Deal found 7/23![Frontier logo]()
$121
One-way flights from St. Louis to KentuckySearch for one-way flight options from St. Louis to Kentucky. Find affordable one-way fares based on user searches. Data last updated July 26, 2026.
Search for one-way flight options from St. Louis to Kentucky. Find affordable one-way fares based on user searches. Data last updated July 26, 2026.
This Southwest deal was found by Cheapflights users on 7/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:15 am
STL
- BNA
Nonstop1h 10m
Southwest
Deal found 7/20![Southwest logo]()
$49
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 8/174:57 pm
STL
- CVG
1 stop17h 24m
Frontier
Deal found 7/25![Frontier logo]()
$53
This Southwest deal was found by Cheapflights users on 7/24. 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 8/227:50 am
STL
- BNA
Nonstop1h 10m
Southwest
Deal found 7/24![Southwest logo]()
$59
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Thu 8/276:17 pm
STL
- CVG
1 stop16h 04m
Frontier
Deal found 7/21![Frontier logo]()
$62
This Kiwi.com deal was found by Cheapflights users on 7/22. 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.
Thu 9/1010:35 am
STL
- CVG
1 stop24h 08m
Frontier
Deal found 7/22![Frontier logo]()
$63
This Southwest deal was found by Cheapflights users on 7/21. 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 8/156:50 am
STL
- BNA
2 stops5h 45m
Southwest
Deal found 7/21![Southwest logo]()
$64
This Delta deal was found by Cheapflights users on 7/24. 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 8/225:33 pm
STL
- BNA
1 stop5h 30m
Delta
Deal found 7/24![Delta logo]()
$74
This Trip.com deal was found by Cheapflights users on 7/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/32:00 pm
STL
- BNA
1 stop4h 03m
Southern / Mokulele
Deal found 7/22![Southern / Mokulele logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Sun 8/166:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 7/21![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 8/212:00 pm
STL
- BNA
1 stop4h 03m
Southern / Mokulele
Deal found 7/22![Southern / Mokulele logo]()
$88
This Southern / Mokulele deal was found by Cheapflights users on 7/22. 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 Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/92:00 pm
STL
- BNA
1 stop4h 03m
Southern / Mokulele
Deal found 7/22![Southern / Mokulele logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 7/22. 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.
Wed 9/2310:35 am
STL
- BNA
2 stops23h 37m
Frontier
Deal found 7/22![Frontier logo]()
$95
Find flight deals from St. Louis to Kentucky
Keep the following information in mind while searching for St. Louis to Kentucky flight deals. Data was last updated July 26, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $97 (Southwest) |
One-way from | $49 (Southwest) |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Kentucky 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 July 26, 2026.
Use the filters below to find and compare flights from St. Louis to Kentucky that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisNashville
STL - BNA
STLBNA
Lambert-St Louis
Thu 9/17
5:40 pm-6:50 pm
Nonstop1h 10m
Nashville Intl
Sat 9/19
7:00 am-8:15 am
Nonstop1h 15m
$97
Quickest round-trip
St. LouisNashville
STL - BNA
STLBNA
Lambert-St Louis
Thu 8/20
8:00 am-9:10 am
Nonstop1h 10m
Nashville Intl
Thu 8/27
9:00 am-10:10 am
Nonstop1h 10m
$97
St. LouisNashville
STL - BNA
STLBNA
Lambert-St Louis
Tue 8/18
6:30 am-10:30 am
1 stop4h 00m
Nashville Intl
Tue 8/25
6:45 am-7:55 am
Nonstop1h 10m
$107
St. LouisNashville
STL - BNA
STLBNA
Lambert-St Louis
Wed 9/16
4:45 pm-5:55 pm
Nonstop1h 10m
Nashville Intl
Sat 9/19
10:05 am-4:40 pm
2 stops6h 35m
$112
St. LouisNashville
STL - BNA
STLBNA
Lambert-St Louis
Thu 8/20
5:40 pm-6:50 pm
Nonstop1h 10m
Nashville Intl
Mon 8/24
6:00 pm-7:10 pm
Nonstop1h 10m
$117
St. LouisNashville
STL - BNA
STLBNA
Lambert-St Louis
Tue 10/13
12:25 pm-5:25 pm
1 stop5h 00m
Nashville Intl
Mon 10/19
7:55 pm-11:15 pm
1 stop3h 20m
$117
St. LouisNashville
STL - BNA
STLBNA
Lambert-St Louis
Sat 9/5
10:15 am-3:45 pm
1 stop5h 30m
Nashville Intl
Sat 9/12
10:05 am-4:40 pm
2 stops6h 35m
$142
St. LouisNashville
STL - BNA
STLBNA
Lambert-St Louis
Thu 12/10
10:00 am-1:21 pm
1 stop3h 21m
Nashville Intl
Sat 12/12
10:54 am-4:32 pm
1 stop5h 38m
$147
St. LouisNashville
STL - BNA
STLBNA
Lambert-St Louis
Thu 12/24
9:50 am-1:48 pm
1 stop3h 58m
Nashville Intl
Mon 12/28
2:35 pm-6:36 pm
1 stop4h 01m
$172
St. LouisNashville
STL - BNA
STLBNA
Lambert-St Louis
Thu 8/6
2:00 pm-6:03 pm
1 stop4h 03m
Nashville Intl
Mon 8/10
9:30 am-1:21 pm
1 stop3h 51m
$172
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Kentucky
Have a flexible travel schedule? Discover the best time to fly to Kentucky from St. Louis with our price prediction graph.
STL-BNA
STL-CVG
STL-SDF
STL-TRI
STL-LEX
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.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Kentucky
STL-USKY
STL-BNA
STL-CVG
STL-SDF
STL-TRI
No data available for this route at this time. Please check back soon.
Reviews of airlines servicing Kentucky
Get insights into the airlines that provide service to Kentucky. 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 Kentucky. Reviews last updated July 26, 2026.
See what other customers who have flown with Delta from St. Louis to Kentucky have to say. 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.
Overall
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Overall
7.8
Entertainment
7.8
Food
7.2
Crew
8.5
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Kentucky. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Alternative routes for St. Louis to Kentucky
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Kentucky by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from St. Louis to Kentucky by cabin class
Find flights from St. Louis to Kentucky, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Kentucky flights
Browse other St. Louis and Kentucky flight options. Last updated on July 26, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
St. Louis to Kentucky flights
Consider these flights traveling from St. Louis to Kentucky.
Top airline flying from St. Louis to Kentucky
Discover the top airline that operate flights from St. Louis to Kentucky. 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 July 26, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$196 | Average$417 | FlexibilityNo cancel fee | On-timeN/A |