$69+ Cheap flights from Kentucky to St. Louis (STL)
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 6/30. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — STL
Jul 8 — Jul 151
Round-trip
1 adult, Economy
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Cheapest flights from Kentucky to St. LouisExplore the most affordable flight options available from Kentucky to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 8, 2026.
Explore the most affordable flight options available from Kentucky to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 8, 2026.
This Southwest deal was found by Cheapflights users on 6/3. 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.
Wed 7/16:25 am
BNA
- STL
Nonstop1h 20m
Southwest
Wed 7/83:10 pm
STL
- BNA
Nonstop1h 10m
Southwest
Deal found 6/3![Southwest logo]()
$137
This Delta deal was found by Cheapflights users on 6/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:10 am
BNA
- STL
1 stop4h 33m
Delta
Wed 7/153:58 pm
STL
- BNA
1 stop4h 45m
Delta
Deal found 6/5![Delta logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 7/2812:18 pm
CVG
- STL
1 stop21h 39m
Frontier
Wed 8/54:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 6/7![Frontier logo]()
$169
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:54 pm
CVG
- STL
1 stop20h 58m
Frontier
Mon 7/64:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 6/4![Frontier logo]()
$178
This Kissandfly.com deal was found by Cheapflights users on 6/7. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/99:30 am
BNA
- STL
1 stop3h 51m
Southern / Mokulele
Mon 7/132:00 pm
STL
- BNA
1 stop4h 03m
Southern / Mokulele
Deal found 6/7![Southern / Mokulele logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Sun 7/512:18 pm
CVG
- STL
1 stop21h 39m
Frontier
Sat 7/114:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 6/7![Frontier logo]()
$181
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Thu 7/212:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Sun 7/56:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 6/7![Frontier logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2312:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Sun 7/266:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 6/5![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 7/312:54 pm
CVG
- STL
1 stop20h 58m
Frontier
Tue 7/76:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 6/3![Frontier logo]()
$191
This Southwest deal was found by Cheapflights users on 6/3. 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 9/109:00 am
BNA
- STL
Nonstop1h 10m
Southwest
Thu 9/245:40 pm
STL
- BNA
Nonstop1h 10m
Southwest
Deal found 6/3![Southwest logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2312:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Thu 6/256:31 pm
STL
- CVG
1 stop16h 18m
Frontier
Deal found 6/4![Frontier logo]()
$198
This Flightnetwork deal was found by Cheapflights users on 6/7. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/229:30 am
BNA
- STL
1 stop6h 31m
Southern / Mokulele
Wed 7/292:00 pm
STL
- BNA
1 stop19h 03m
Southern / Mokulele
Deal found 6/7![Southern / Mokulele logo]()
$201
Best flights from Kentucky to St. LouisDiscover carefully curated flight deals from Kentucky to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 8, 2026.
Discover carefully curated flight deals from Kentucky to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 8, 2026.
This Southwest deal was found by Cheapflights users on 6/6. 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.
Tue 7/219:45 pm
BNA
- STL
Nonstop1h 20m
Southwest
Tue 7/283:10 pm
STL
- BNA
Nonstop1h 10m
Southwest
Deal found 6/6![Southwest logo]()
$137
This Southern / Mokulele deal was found by Cheapflights users on 6/7. 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 Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/252:35 pm
BNA
- STL
1 stop4h 01m
Southern / Mokulele
Mon 6/292:00 pm
STL
- BNA
1 stop19h 03m
Southern / Mokulele
Deal found 6/7![Southern / Mokulele logo]()
$212
This Frontier deal was found by Cheapflights users on 6/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1412:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Wed 7/154:09 pm
STL
- CVG
1 stop6h 37m
Frontier
Deal found 6/7![Frontier logo]()
$230
This American Airlines deal was found by Cheapflights users on 6/4. 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.
Fri 8/147:22 pm
TRI
- STL
1 stop4h 18m
American Airlines
Mon 8/174:54 pm
STL
- TRI
1 stop5h 55m
American Airlines
Deal found 6/4![American Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/163:53 pm
TYS
- STL
1 stop9h 06m
Multiple Airlines
Sun 7/194:09 pm
STL
- TYS
1 stop28h 06m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$292
This United Airlines deal was found by Cheapflights users on 6/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/269:52 am
LEX
- STL
1 stop6h 46m
United Airlines
Sat 8/298:00 am
STL
- LEX
1 stop4h 16m
United Airlines
Deal found 6/6![United Airlines logo]()
$341
This Delta deal was found by Cheapflights users on 6/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/195:56 pm
LEX
- STL
1 stop7h 00m
Delta
Sat 6/204:00 pm
STL
- LEX
1 stop7h 04m
Delta
Deal found 6/5![Delta logo]()
$343
This Southern / Mokulele deal was found by Cheapflights users on 6/7. 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 Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/19:30 am
BNA
- STL
1 stop6h 31m
Southern / Mokulele
Thu 7/22:00 pm
STL
- BNA
1 stop23h 48m
Southern / Mokulele
Deal found 6/7![Southern / Mokulele logo]()
$212
This Southern / Mokulele deal was found by Cheapflights users on 6/3. 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 Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/172:35 pm
BNA
- STL
1 stop4h 01m
Southern / Mokulele
Sun 7/192:00 pm
STL
- BNA
1 stop19h 03m
Southern / Mokulele
Deal found 6/3![Southern / Mokulele logo]()
$212
This Southwest deal was found by Cheapflights users on 6/7. 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 9/118:50 pm
BNA
- STL
Nonstop1h 15m
Southwest
Wed 9/1610:15 am
STL
- BNA
Nonstop1h 10m
Southwest
Deal found 6/7![Southwest logo]()
$240
This Southwest deal was found by Cheapflights users on 6/7. 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.
Thu 11/265:45 am
BNA
- STL
Nonstop1h 15m
Southwest
Thu 11/261:10 pm
STL
- BNA
Nonstop1h 05m
Southwest
Deal found 6/7![Southwest logo]()
$240
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/108:36 pm
CVG
- STL
2 stops13h 21m
Frontier
Sun 7/126:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 6/6![Frontier logo]()
$276
This American Airlines deal was found by Cheapflights users on 6/4. 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.
Fri 9/115:11 pm
TRI
- STL
1 stop6h 31m
American Airlines
Tue 9/155:18 pm
STL
- TRI
1 stop5h 38m
American Airlines
Deal found 6/4![American Airlines logo]()
$289
This American Airlines deal was found by Cheapflights users on 6/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/75:29 pm
TRI
- STL
1 stop6h 11m
American Airlines
Mon 8/103:25 pm
STL
- TRI
1 stop4h 42m
American Airlines
Deal found 6/5![American Airlines logo]()
$289
This Expedia deal was found by Cheapflights users on 6/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/239:30 pm
CVG
- STL
1 stop27h 19m
Frontier
Thu 6/254:17 pm
STL
- CVG
1 stop6h 29m
Frontier
Deal found 6/8![Frontier logo]()
$290
This Kiwi.com deal was found by Cheapflights users on 6/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2612:40 pm
TYS
- STL
2 stops21h 12m
Multiple Airlines
Mon 6/294:17 pm
STL
- TYS
1 stop6h 17m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$331
This United Airlines deal was found by Cheapflights users on 6/5. 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.
Wed 8/267:00 am
TYS
- STL
1 stop6h 02m
United Airlines
Thu 8/279:30 am
STL
- TYS
1 stop6h 28m
United Airlines
Deal found 6/5![United Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 6/4. 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 7/18:10 am
TYS
- STL
2 stops10h 15m
Southwest
Sat 7/47:40 am
STL
- TYS
2 stops10h 40m
Southwest
Deal found 6/4![Southwest logo]()
$295
This Delta deal was found by Cheapflights users on 6/7. 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.
Thu 11/123:50 pm
TRI
- STL
1 stop5h 59m
Delta
Sun 11/151:30 pm
STL
- TRI
1 stop3h 41m
Delta
Deal found 6/7![Delta logo]()
$359
This American Airlines deal was found by Cheapflights users on 6/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:12 pm
TRI
- STL
1 stop6h 19m
American Airlines
Tue 10/204:51 pm
STL
- TRI
1 stop5h 56m
American Airlines
Deal found 6/6![American Airlines logo]()
$299
This Booking.com deal was found by Cheapflights users on 6/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/248:36 pm
CVG
- STL
1 stop23h 47m
Frontier
Sun 7/267:10 pm
STL
- CVG
1 stop24h 15m
Frontier
Deal found 6/3![Frontier logo]()
$302
This Southwest deal was found by Cheapflights users on 6/5. 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.
Wed 7/17:10 am
TYS
- STL
2 stops6h 55m
Southwest
Sun 7/51:30 pm
STL
- TYS
2 stops6h 50m
Southwest
Deal found 6/5![Southwest logo]()
$295
This American Airlines deal was found by Cheapflights users on 6/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/47:54 am
TRI
- STL
1 stop5h 56m
American Airlines
Fri 7/107:32 am
STL
- TRI
1 stop3h 50m
American Airlines
Deal found 6/6![American Airlines logo]()
$299
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Tue 7/79:00 am
SDF
- STL
1 stop4h 11m
United Airlines
Thu 7/97:05 pm
STL
- SDF
1 stop3h 54m
United Airlines
Deal found 6/7![United Airlines logo]()
$375
This Delta deal was found by Cheapflights users on 6/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/177:59 pm
LEX
- STL
1 stop4h 54m
Delta
Sun 7/197:08 am
STL
- LEX
1 stop4h 09m
Delta
Deal found 6/5![Delta logo]()
$384
This Southwest deal was found by Cheapflights users on 6/5. 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.
Sat 7/47:00 am
TYS
- STL
2 stops8h 45m
Southwest
Fri 7/105:35 pm
STL
- TYS
1 stop2h 40m
Southwest
Deal found 6/5![Southwest logo]()
$304
This American Airlines deal was found by Cheapflights users on 6/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/48:58 am
CVG
- STL
1 stop5h 55m
American Airlines
Tue 8/45:58 pm
STL
- CVG
1 stop5h 32m
American Airlines
Deal found 6/5![American Airlines logo]()
$316
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Tue 6/307:19 am
SDF
- STL
1 stop5h 52m
United Airlines
Wed 7/11:13 pm
STL
- SDF
1 stop6h 10m
United Airlines
Deal found 6/7![United Airlines logo]()
$385
This Southwest deal was found by Cheapflights users on 6/7. 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.
Thu 7/236:40 am
TYS
- STL
2 stops7h 55m
Southwest
Sun 7/269:15 am
STL
- TYS
1 stop5h 30m
Southwest
Deal found 6/7![Southwest logo]()
$304
This Delta deal was found by Cheapflights users on 6/7. 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.
Mon 7/68:32 pm
LEX
- STL
1 stop4h 24m
Delta
Sun 7/121:54 pm
STL
- LEX
1 stop6h 24m
Delta
Deal found 6/7![Delta logo]()
$413
Last-minute flights from Kentucky to St. LouisDiscover last-minute flight deals from Kentucky to St. Louis. Data last updated June 8, 2026 and is based on user searches.
Discover last-minute flight deals from Kentucky to St. Louis. Data last updated June 8, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2312:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Thu 6/256:31 pm
STL
- CVG
1 stop16h 18m
Frontier
Deal found 6/4![Frontier logo]()
$198
This Southwest deal was found by Cheapflights users on 6/3. 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.
Wed 7/16:25 am
BNA
- STL
Nonstop1h 20m
Southwest
Wed 7/83:10 pm
STL
- BNA
Nonstop1h 10m
Southwest
Deal found 6/3![Southwest logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Thu 7/212:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Sun 7/56:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 6/7![Frontier logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:54 pm
CVG
- STL
1 stop20h 58m
Frontier
Mon 7/64:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 6/4![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 6/3. 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 7/312:54 pm
CVG
- STL
1 stop20h 58m
Frontier
Tue 7/76:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 6/3![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Sun 7/512:18 pm
CVG
- STL
1 stop21h 39m
Frontier
Sat 7/114:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 6/7![Frontier logo]()
$181
This Kissandfly.com deal was found by Cheapflights users on 6/7. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/99:30 am
BNA
- STL
1 stop3h 51m
Southern / Mokulele
Mon 7/132:00 pm
STL
- BNA
1 stop4h 03m
Southern / Mokulele
Deal found 6/7![Southern / Mokulele logo]()
$179
This Delta deal was found by Cheapflights users on 6/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:10 am
BNA
- STL
1 stop4h 33m
Delta
Wed 7/153:58 pm
STL
- BNA
1 stop4h 45m
Delta
Deal found 6/5![Delta logo]()
$157
This Flightnetwork deal was found by Cheapflights users on 6/5. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/202:35 pm
BNA
- STL
1 stop4h 01m
Southern / Mokulele
Mon 7/272:00 pm
STL
- BNA
1 stop19h 03m
Southern / Mokulele
Deal found 6/5![Southern / Mokulele logo]()
$202
This Flightnetwork deal was found by Cheapflights users on 6/7. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/229:30 am
BNA
- STL
1 stop6h 31m
Southern / Mokulele
Wed 7/292:00 pm
STL
- BNA
1 stop19h 03m
Southern / Mokulele
Deal found 6/7![Southern / Mokulele logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2312:18 pm
CVG
- STL
1 stop6h 19m
Frontier
Sun 7/266:34 pm
STL
- CVG
1 stop16h 14m
Frontier
Deal found 6/5![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 6/7. 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 7/2812:18 pm
CVG
- STL
1 stop21h 39m
Frontier
Wed 8/54:57 pm
STL
- CVG
1 stop17h 16m
Frontier
Deal found 6/7![Frontier logo]()
$169
One-way flights from Kentucky to St. LouisSearch for one-way flight options from Kentucky to St. Louis. Find affordable one-way fares based on user searches. Data last updated June 8, 2026.
Search for one-way flight options from Kentucky to St. Louis. Find affordable one-way fares based on user searches. Data last updated June 8, 2026.
This Southwest deal was found by Cheapflights users on 6/3. 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.
Tue 6/304:05 pm
BNA
- STL
Nonstop1h 20m
Southwest
Deal found 6/3![Southwest logo]()
$69
This Delta deal was found by Cheapflights users on 6/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:54 pm
BNA
- STL
1 stop5h 02m
Delta
Deal found 6/3![Delta logo]()
$74
This Kiwi.com deal was found by Cheapflights users on 6/7. 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.
Sun 8/22:35 pm
BNA
- STL
1 stop4h 01m
Southern / Mokulele
Deal found 6/7![Southern / Mokulele logo]()
$82
This Orbitz deal was found by Cheapflights users on 6/3. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/142:35 pm
BNA
- STL
1 stop4h 01m
Southern / Mokulele
Deal found 6/3![Southern / Mokulele logo]()
$83
This Southern / Mokulele deal was found by Cheapflights users on 6/7. 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 Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/282:35 pm
BNA
- STL
1 stop4h 01m
Southern / Mokulele
Deal found 6/7![Southern / Mokulele logo]()
$91
This Trip.com deal was found by Cheapflights users on 6/8. 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.
Thu 8/2712:12 pm
CVG
- STL
1 stop6h 18m
Frontier
Deal found 6/8![Frontier logo]()
$95
This Southwest deal was found by Cheapflights users on 6/4. 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.
Mon 8/316:25 am
BNA
- STL
Nonstop1h 10m
Southwest
Deal found 6/4![Southwest logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 6/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/212:24 pm
CVG
- STL
1 stop6h 06m
Frontier
Deal found 6/5![Frontier logo]()
$98
This Delta deal was found by Cheapflights users on 6/4. 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.
Sat 8/2910:59 am
BNA
- STL
1 stop3h 34m
Delta
Deal found 6/4![Delta logo]()
$103
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/29:30 am
BNA
- STL
1 stop6h 31m
Southern / Mokulele
Deal found 6/4![Southern / Mokulele logo]()
$104
This Delta deal was found by Cheapflights users on 6/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:11 am
BNA
- STL
1 stop4h 09m
Delta
Deal found 6/5![Delta logo]()
$108
This Frontier deal was found by Cheapflights users on 6/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/3012:09 pm
BNA
- STL
1 stop7h 14m
Frontier
Deal found 6/6![Frontier logo]()
$115
Find flight deals from Kentucky to St. Louis
Keep the following information in mind while searching for Kentucky to St. Louis flight deals. Data was last updated June 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $137 (Southwest) |
One-way from | $69 (Southwest) |
Cheapflights Fare Finder
Customize your flight search to find flights from Kentucky 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 2,558,603 searches. Data last updated June 8, 2026.
Use the filters below to find and compare flights from Kentucky to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
NashvilleSt. Louis
BNA - STL
BNASTL
Nashville Intl
Tue 7/21
9:45 pm-11:05 pm
Nonstop1h 20m
Lambert-St Louis
Tue 7/28
3:10 pm-4:20 pm
Nonstop1h 10m
$137
NashvilleSt. Louis
BNA - STL
BNASTL
Nashville Intl
Thu 6/25
2:35 pm-6:36 pm
1 stop4h 01m
Lambert-St Louis
Mon 6/29
2:00 pm-9:03 am
1 stop19h 03m
$212
NashvilleSt. Louis
BNA - STL
BNASTL
Nashville Intl
Wed 7/1
9:30 am-4:01 pm
1 stop6h 31m
Lambert-St Louis
Thu 7/2
2:00 pm-1:48 pm
1 stop23h 48m
$212
NashvilleSt. Louis
BNA - STL
BNASTL
Nashville Intl
Fri 7/17
2:35 pm-6:36 pm
1 stop4h 01m
Lambert-St Louis
Sun 7/19
2:00 pm-9:03 am
1 stop19h 03m
$212
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Tue 7/14
12:18 pm-5:37 pm
1 stop6h 19m
Lambert-St Louis
Wed 7/15
4:09 pm-11:46 pm
1 stop6h 37m
$230
NashvilleSt. Louis
BNA - STL
BNASTL
Nashville Intl
Fri 9/11
8:50 pm-10:05 pm
Nonstop1h 15m
Lambert-St Louis
Wed 9/16
10:15 am-11:25 am
Nonstop1h 10m
$240
Quickest round-trip
NashvilleSt. Louis
BNA - STL
BNASTL
Nashville Intl
Thu 11/26
5:45 am-7:00 am
Nonstop1h 15m
Lambert-St Louis
Thu 11/26
1:10 pm-2:15 pm
Nonstop1h 05m
$240
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
Fri 7/10
8:36 pm-8:57 am
2 stops13h 21m
Lambert-St Louis
Sun 7/12
6:34 pm-11:48 am
1 stop16h 14m
$276
BlountvilleSt. Louis
TRI - STL
TRISTL
Blountville Tri Cities TN/VA
Fri 8/14
7:22 pm-10:40 pm
1 stop4h 18m
Lambert-St Louis
Mon 8/17
4:54 pm-11:49 pm
1 stop5h 55m
$289
BlountvilleSt. Louis
TRI - STL
TRISTL
Blountville Tri Cities TN/VA
Fri 9/11
5:11 pm-10:42 pm
1 stop6h 31m
Lambert-St Louis
Tue 9/15
5:18 pm-11:56 pm
1 stop5h 38m
$289
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Kentucky to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Kentucky with our price prediction graph.
BNA-STL
CVG-STL
TRI-STL
TYS-STL
LEX-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.
Cheapflights Insights
Everything you need to know about your flight from Kentucky to St. Louis
USKY-STL
BNA-STL
CVG-STL
TRI-STL
TYS-STL
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Kentucky 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 locationsO'Fallon
Edwardsville
Fenton
Swansea
Fairview Heights
Maryland Heights
Collinsville
Eureka
Wentzville
Glencoe
Chesterfield
Alton
Farmington
Festus
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Alternative routes for Kentucky to St. Louis
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Kentucky and St. Louis flights
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Other flights to St. Louis
Explore flights to St. Louis departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 8, 2026.
Kentucky to St. Louis flights
Consider these flights traveling from Kentucky to St. Louis.
Top airline flying from Kentucky to St. Louis
Discover the top airline that operate flights from Kentucky to St. Louis. 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 June 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$152 | Average$268 | FlexibilityNo cancel fee | On-time71% |