$49+ 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 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — STL
abr. 9 — abr. 161
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 marzo 10, 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 marzo 10, 2026.
This Southwest deal was found by Cheapflights users on 3/9. 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.
mar. 4/146:25 am
BNA
- STL
Nonstop1h 20m
Southwest
mié. 4/152:30 pm
STL
- BNA
Nonstop1h 10m
Southwest
Deal found 3/9![Southwest logo]()
$97
This Southwest deal was found by Cheapflights users on 3/5. 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.
lun. 4/610:45 pm
BNA
- STL
Nonstop1h 20m
Southwest
mié. 4/86:40 pm
STL
- BNA
Nonstop1h 10m
Southwest
Deal found 3/5![Southwest logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
jue. 4/912:20 pm
CVG
- STL
1 stop6h 14m
Frontier
mié. 4/158:23 pm
STL
- CVG
1 stop20h 10m
Frontier
Deal found 3/9![Frontier logo]()
$148
This Trip.com deal was found by Cheapflights users on 3/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/132:35 pm
BNA
- STL
1 stop4h 01m
Southern / Mokulele
vie. 3/209:50 am
STL
- BNA
1 stop3h 58m
Southern / Mokulele
Deal found 3/6![Southern / Mokulele logo]()
$154
This Trip.com deal was found by Cheapflights users on 3/9. 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.
jue. 4/22:35 pm
BNA
- STL
1 stop4h 01m
Southern / Mokulele
lun. 4/69:50 am
STL
- BNA
1 stop3h 58m
Southern / Mokulele
Deal found 3/9![Southern / Mokulele logo]()
$155
This Southwest deal was found by Cheapflights users on 3/5. 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.
mié. 4/1512:40 pm
BNA
- STL
2 stops5h 15m
Southwest
jue. 4/168:45 pm
STL
- BNA
Nonstop1h 10m
Southwest
Deal found 3/5![Southwest logo]()
$159
This Expedia deal was found by Cheapflights users on 3/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/1311:06 am
BNA
- STL
1 stop12h 19m
Frontier
vie. 4/248:39 am
STL
- BNA
1 stop10h 02m
Frontier
Deal found 3/5![Frontier logo]()
$160
This Expedia deal was found by Cheapflights users on 3/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/18:17 pm
CVG
- STL
1 stop24h 15m
Frontier
dom. 5/38:06 pm
STL
- CVG
1 stop23h 18m
Frontier
Deal found 3/5![Frontier logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/302:35 pm
BNA
- STL
1 stop4h 01m
Southern / Mokulele
lun. 7/69:50 am
STL
- BNA
1 stop3h 58m
Southern / Mokulele
Deal found 3/8![Southern / Mokulele logo]()
$170
This Frontier deal was found by Cheapflights users on 3/9. 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.
jue. 4/91:20 pm
CVG
- STL
1 stop11h 05m
Frontier
vie. 4/178:39 am
STL
- CVG
1 stop9h 44m
Frontier
Deal found 3/9![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
vie. 4/1011:51 am
CVG
- STL
1 stop22h 57m
Frontier
mié. 4/158:23 pm
STL
- CVG
1 stop20h 10m
Frontier
Deal found 3/9![Frontier logo]()
$182
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
jue. 4/912:20 pm
CVG
- STL
1 stop6h 14m
Frontier
jue. 4/1611:25 am
STL
- CVG
1 stop5h 08m
Frontier
Deal found 3/9![Frontier logo]()
$199
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 marzo 10, 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 marzo 10, 2026.
This Southwest deal was found by Cheapflights users on 3/6. 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.
lun. 4/206:35 am
BNA
- STL
Nonstop1h 20m
Southwest
mié. 4/222:30 pm
STL
- BNA
Nonstop1h 10m
Southwest
Deal found 3/6![Southwest logo]()
$144
This Southern / Mokulele deal was found by Cheapflights users on 3/7. 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.
lun. 5/112:35 pm
BNA
- STL
1 stop4h 01m
Southern / Mokulele
sáb. 5/169:50 am
STL
- BNA
1 stop3h 58m
Southern / Mokulele
Deal found 3/7![Southern / Mokulele logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 3/7. 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.
jue. 4/236:44 pm
CVG
- STL
1 stop13h 06m
Frontier
dom. 4/264:59 pm
STL
- CVG
2 stops24h 37m
Frontier
Deal found 3/7![Frontier logo]()
$246
This American Airlines deal was found by Cheapflights users on 3/5. 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.
lun. 4/207:01 pm
SDF
- STL
1 stop5h 45m
American Airlines
mié. 4/227:05 am
STL
- SDF
1 stop8h 00m
American Airlines
Deal found 3/5![American Airlines logo]()
$263
This United Airlines deal was found by Cheapflights users on 3/6. 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.
mar. 6/305:55 pm
TYS
- STL
1 stop4h 21m
United Airlines
lun. 7/65:41 pm
STL
- TYS
1 stop5h 49m
United Airlines
Deal found 3/6![United Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 3/5. 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.
mar. 6/305:30 am
TYS
- STL
1 stop6h 15m
Delta
lun. 7/67:05 pm
STL
- TYS
1 stop3h 41m
Delta
Deal found 3/5![Delta logo]()
$299
This Southwest deal was found by Cheapflights users on 3/5. 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.
lun. 4/66:25 am
BNA
- STL
Nonstop1h 20m
Southwest
mié. 4/81:10 pm
STL
- BNA
1 stop4h 45m
Southwest
Deal found 3/5![Southwest logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 3/7. 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.
vie. 4/175:08 pm
TRI
- STL
2 stops14h 42m
Multiple Airlines
dom. 4/194:59 pm
STL
- TRI
1 stop18h 14m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$353
This Southwest deal was found by Cheapflights users on 3/9. 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.
jue. 4/26:25 am
BNA
- STL
Nonstop1h 20m
Southwest
lun. 4/64:55 pm
STL
- BNA
Nonstop1h 10m
Southwest
Deal found 3/9![Southwest logo]()
$171
This Southwest deal was found by Cheapflights users on 3/7. 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.
jue. 5/149:55 pm
BNA
- STL
Nonstop1h 20m
Southwest
sáb. 5/1610:55 am
STL
- BNA
Nonstop1h 10m
Southwest
Deal found 3/7![Southwest logo]()
$171
This American Airlines deal was found by Cheapflights users on 3/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 4/110:27 am
LEX
- STL
1 stop6h 08m
American Airlines
dom. 4/57:05 am
STL
- LEX
1 stop4h 44m
American Airlines
Deal found 3/7![American Airlines logo]()
$269
This United Airlines deal was found by Cheapflights users on 3/9. 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.
mar. 3/241:56 pm
LEX
- STL
1 stop5h 04m
United Airlines
sáb. 3/288:17 am
STL
- LEX
1 stop3h 58m
United Airlines
Deal found 3/9![United Airlines logo]()
$279
This Frontier deal was found by Cheapflights users on 3/5. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/1211:49 am
CVG
- STL
1 stop8h 24m
Frontier
dom. 6/1411:32 am
STL
- CVG
1 stop6h 04m
Frontier
Deal found 3/5![Frontier logo]()
$290
This Delta deal was found by Cheapflights users on 3/9. 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.
mar. 4/710:50 am
SDF
- STL
1 stop6h 42m
Delta
mié. 4/156:48 am
STL
- SDF
1 stop6h 42m
Delta
Deal found 3/9![Delta logo]()
$302
This Southwest deal was found by Cheapflights users on 3/5. 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.
jue. 4/99:55 pm
BNA
- STL
Nonstop1h 20m
Southwest
dom. 4/125:25 am
STL
- BNA
1 stop3h 45m
Southwest
Deal found 3/5![Southwest logo]()
$230
This United Airlines deal was found by Cheapflights users on 3/6. 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.
mié. 4/87:00 am
CVG
- STL
1 stop4h 45m
United Airlines
jue. 4/97:45 am
STL
- CVG
1 stop6h 40m
United Airlines
Deal found 3/6![United Airlines logo]()
$291
This Southwest deal was found by Cheapflights users on 3/5. 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.
lun. 4/139:55 pm
BNA
- STL
Nonstop1h 20m
Southwest
vie. 4/241:20 pm
STL
- BNA
1 stop5h 00m
Southwest
Deal found 3/5![Southwest logo]()
$230
This Delta deal was found by Cheapflights users on 3/7. 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.
sáb. 4/186:08 pm
SDF
- STL
1 stop3h 36m
Delta
lun. 4/206:48 am
STL
- SDF
1 stop6h 42m
Delta
Deal found 3/7![Delta logo]()
$309
This American Airlines deal was found by Cheapflights users on 3/5. 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.
vie. 8/146:16 pm
TRI
- STL
1 stop6h 39m
American Airlines
lun. 8/175:27 am
STL
- TRI
1 stop4h 10m
American Airlines
Deal found 3/5![American Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
mar. 3/248:42 am
CVG
- STL
2 stops27h 37m
Frontier
mié. 4/18:16 pm
STL
- CVG
1 stop17h 06m
Frontier
Deal found 3/9![Frontier logo]()
$322
This Southwest deal was found by Cheapflights users on 3/7. 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.
vie. 4/176:05 pm
BNA
- STL
1 stop5h 45m
Southwest
lun. 4/209:55 am
STL
- BNA
Nonstop1h 10m
Southwest
Deal found 3/7![Southwest logo]()
$230
This Delta deal was found by Cheapflights users on 3/9. 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.
sáb. 4/116:00 am
LEX
- STL
1 stop4h 02m
Delta
sáb. 4/181:03 pm
STL
- LEX
1 stop5h 38m
Delta
Deal found 3/9![Delta logo]()
$311
This United Airlines deal was found by Cheapflights users on 3/5. 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.
jue. 4/96:15 pm
CVG
- STL
1 stop3h 58m
United Airlines
vie. 4/108:15 pm
STL
- CVG
1 stop3h 58m
United Airlines
Deal found 3/5![United Airlines logo]()
$319
This American Airlines deal was found by Cheapflights users on 3/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/247:01 pm
SDF
- STL
1 stop5h 45m
American Airlines
sáb. 4/255:21 pm
STL
- SDF
1 stop5h 27m
American Airlines
Deal found 3/7![American Airlines logo]()
$325
This Delta deal was found by Cheapflights users on 3/9. 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.
mar. 4/77:55 pm
LEX
- STL
1 stop5h 03m
Delta
sáb. 4/181:03 pm
STL
- LEX
1 stop5h 38m
Delta
Deal found 3/9![Delta logo]()
$311
This United Airlines deal was found by Cheapflights users on 3/6. 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.
vie. 4/245:48 pm
SDF
- STL
1 stop5h 04m
United Airlines
sáb. 4/259:16 am
STL
- SDF
1 stop6h 25m
United Airlines
Deal found 3/6![United Airlines logo]()
$325
This Southwest deal was found by Cheapflights users on 3/6. 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.
vie. 4/37:05 pm
BNA
- STL
1 stop5h 35m
Southwest
sáb. 4/47:45 pm
STL
- BNA
Nonstop1h 10m
Southwest
Deal found 3/6![Southwest logo]()
$250
This Delta deal was found by Cheapflights users on 3/9. 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.
vie. 4/105:49 pm
LEX
- STL
1 stop3h 53m
Delta
mié. 4/159:59 am
STL
- LEX
1 stop5h 08m
Delta
Deal found 3/9![Delta logo]()
$311
This United Airlines deal was found by Cheapflights users on 3/5. 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.
sáb. 8/297:00 am
LEX
- STL
1 stop6h 49m
United Airlines
mié. 9/25:00 am
STL
- LEX
1 stop4h 23m
United Airlines
Deal found 3/5![United Airlines logo]()
$329
This Southwest deal was found by Cheapflights users on 3/5. 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.
jue. 4/27:25 pm
TYS
- STL
1 stop5h 40m
Southwest
jue. 4/910:50 am
STL
- TYS
2 stops8h 30m
Southwest
Deal found 3/5![Southwest logo]()
$262
Last-minute flights from Kentucky to St. LouisDiscover last-minute flight deals from Kentucky to St. Louis. Data last updated marzo 10, 2026 and is based on user searches.
Discover last-minute flight deals from Kentucky to St. Louis. Data last updated marzo 10, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 3/5. 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.
mar. 3/102:35 pm
BNA
- STL
1 stop4h 01m
Southern / Mokulele
mar. 3/179:50 am
STL
- BNA
1 stop3h 58m
Southern / Mokulele
Deal found 3/5![Southern / Mokulele logo]()
$171
This Trip.com deal was found by Cheapflights users on 3/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 3/132:35 pm
BNA
- STL
1 stop4h 01m
Southern / Mokulele
vie. 3/209:50 am
STL
- BNA
1 stop3h 58m
Southern / Mokulele
Deal found 3/6![Southern / Mokulele logo]()
$154
This Trip.com deal was found by Cheapflights users on 3/9. 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.
jue. 4/22:35 pm
BNA
- STL
1 stop4h 01m
Southern / Mokulele
lun. 4/69:50 am
STL
- BNA
1 stop3h 58m
Southern / Mokulele
Deal found 3/9![Southern / Mokulele logo]()
$155
This Southwest deal was found by Cheapflights users on 3/5. 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.
lun. 4/610:45 pm
BNA
- STL
Nonstop1h 20m
Southwest
mié. 4/86:40 pm
STL
- BNA
Nonstop1h 10m
Southwest
Deal found 3/5![Southwest logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
jue. 4/912:20 pm
CVG
- STL
1 stop6h 14m
Frontier
mié. 4/158:23 pm
STL
- CVG
1 stop20h 10m
Frontier
Deal found 3/9![Frontier logo]()
$148
This Frontier deal was found by Cheapflights users on 3/9. 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.
jue. 4/91:20 pm
CVG
- STL
1 stop11h 05m
Frontier
vie. 4/178:39 am
STL
- CVG
1 stop9h 44m
Frontier
Deal found 3/9![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
jue. 4/912:20 pm
CVG
- STL
1 stop6h 14m
Frontier
jue. 4/1611:25 am
STL
- CVG
1 stop5h 08m
Frontier
Deal found 3/9![Frontier logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
jue. 4/912:20 pm
CVG
- STL
1 stop6h 14m
Frontier
sáb. 4/188:17 pm
STL
- CVG
1 stop21h 55m
Frontier
Deal found 3/9![Frontier logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
vie. 4/1011:51 am
CVG
- STL
1 stop22h 57m
Frontier
mié. 4/158:23 pm
STL
- CVG
1 stop20h 10m
Frontier
Deal found 3/9![Frontier logo]()
$182
This Expedia deal was found by Cheapflights users on 3/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/1311:06 am
BNA
- STL
1 stop12h 19m
Frontier
vie. 4/248:39 am
STL
- BNA
1 stop10h 02m
Frontier
Deal found 3/5![Frontier logo]()
$160
This Southwest deal was found by Cheapflights users on 3/9. 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.
mar. 4/146:25 am
BNA
- STL
Nonstop1h 20m
Southwest
mié. 4/152:30 pm
STL
- BNA
Nonstop1h 10m
Southwest
Deal found 3/9![Southwest logo]()
$97
This Southwest deal was found by Cheapflights users on 3/5. 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.
mié. 4/1512:40 pm
BNA
- STL
2 stops5h 15m
Southwest
jue. 4/168:45 pm
STL
- BNA
Nonstop1h 10m
Southwest
Deal found 3/5![Southwest logo]()
$159
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 marzo 10, 2026.
Search for one-way flight options from Kentucky to St. Louis. Find affordable one-way fares based on user searches. Data last updated marzo 10, 2026.
This Southwest deal was found by Cheapflights users on 3/9. 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.
mié. 4/86:25 am
BNA
- STL
Nonstop1h 20m
Southwest
Deal found 3/9![Southwest logo]()
$49
This Southwest deal was found by Cheapflights users on 3/5. 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.
mié. 4/19:20 pm
BNA
- STL
Nonstop1h 20m
Southwest
Deal found 3/5![Southwest logo]()
$59
This Kiwi.com deal was found by Cheapflights users on 3/6. 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.
dom. 4/196:53 pm
CVG
- STL
1 stop12h 57m
Frontier
Deal found 3/6![Frontier logo]()
$70
This Trip.com deal was found by Cheapflights users on 3/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/17:46 pm
CVG
- STL
1 stop12h 04m
Frontier
Deal found 3/7![Frontier logo]()
$72
This Southwest deal was found by Cheapflights users on 3/6. 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.
mar. 5/512:40 pm
BNA
- STL
2 stops5h 15m
Southwest
Deal found 3/6![Southwest logo]()
$74
This Kiwi.com deal was found by Cheapflights users on 3/6. 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.
dom. 4/266:53 pm
CVG
- STL
1 stop12h 57m
Frontier
Deal found 3/6![Frontier logo]()
$75
This Trip.com deal was found by Cheapflights users on 3/8. 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.
vie. 3/132:35 pm
BNA
- STL
1 stop4h 01m
Southern / Mokulele
Deal found 3/8![Southern / Mokulele logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 3/6. 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.
vie. 5/87:43 pm
CVG
- STL
1 stop12h 07m
Frontier
Deal found 3/6![Frontier logo]()
$76
This Delta deal was found by Cheapflights users on 3/5. 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.
mié. 5/65:25 am
BNA
- STL
1 stop5h 09m
Delta
Deal found 3/5![Delta logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 3/6. 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.
jue. 4/912:20 pm
CVG
- STL
1 stop6h 14m
Frontier
Deal found 3/6![Frontier logo]()
$79
This American Airlines deal was found by Cheapflights users on 3/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 4/41:09 pm
BNA
- STL
1 stop6h 21m
American Airlines
Deal found 3/7![American Airlines logo]()
$80
This Priceline deal was found by Cheapflights users on 3/5. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 4/184:26 pm
CVG
- STL
1 stop7h 53m
Frontier
Deal found 3/5![Frontier logo]()
$80
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 marzo 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $97 (Southwest) |
One-way from | $49 (Southwest) |
Popular in | May |
Cheapest in | August |
Average price | $342 |
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 marzo 10, 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
Quickest round-trip
NashvilleSt. Louis
BNA - STL
BNASTL
Nashville Intl
lun. 4/20
6:35 am-7:55 am
Nonstop1h 20m
Lambert-St Louis
mié. 4/22
2:30 pm-3:40 pm
Nonstop1h 10m
$144
NashvilleSt. Louis
BNA - STL
BNASTL
Nashville Intl
lun. 4/6
6:25 am-7:45 am
Nonstop1h 20m
Lambert-St Louis
mié. 4/8
1:10 pm-5:55 pm
1 stop4h 45m
$154
NashvilleSt. Louis
BNA - STL
BNASTL
Nashville Intl
jue. 4/2
6:25 am-7:45 am
Nonstop1h 20m
Lambert-St Louis
lun. 4/6
4:55 pm-6:05 pm
Nonstop1h 10m
$171
NashvilleSt. Louis
BNA - STL
BNASTL
Nashville Intl
jue. 5/14
9:55 pm-11:15 pm
Nonstop1h 20m
Lambert-St Louis
sáb. 5/16
10:55 am-12:05 pm
Nonstop1h 10m
$171
NashvilleSt. Louis
BNA - STL
BNASTL
Nashville Intl
lun. 5/11
2:35 pm-6:36 pm
1 stop4h 01m
Lambert-St Louis
sáb. 5/16
9:50 am-1:48 pm
1 stop3h 58m
$172
NashvilleSt. Louis
BNA - STL
BNASTL
Nashville Intl
jue. 4/9
9:55 pm-11:15 pm
Nonstop1h 20m
Lambert-St Louis
dom. 4/12
5:25 am-9:10 am
1 stop3h 45m
$230
NashvilleSt. Louis
BNA - STL
BNASTL
Nashville Intl
lun. 4/13
9:55 pm-11:15 pm
Nonstop1h 20m
Lambert-St Louis
vie. 4/24
1:20 pm-6:20 pm
1 stop5h 00m
$230
NashvilleSt. Louis
BNA - STL
BNASTL
Nashville Intl
vie. 4/17
6:05 pm-11:50 pm
1 stop5h 45m
Lambert-St Louis
lun. 4/20
9:55 am-11:05 am
Nonstop1h 10m
$230
CincinnatiSt. Louis
CVG - STL
CVGSTL
Cincinnati Cinci./N. Kentucky
jue. 4/23
6:44 pm-6:50 am
1 stop13h 06m
Lambert-St Louis
dom. 4/26
4:59 pm-6:36 pm
2 stops24h 37m
$246
NashvilleSt. Louis
BNA - STL
BNASTL
Nashville Intl
vie. 4/3
7:05 pm-12:40 am
1 stop5h 35m
Lambert-St Louis
sáb. 4/4
7:45 pm-8:55 pm
Nonstop1h 10m
$250
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
SDF-STL
TYS-STL
TRI-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
SDF-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 locationsEdwardsville
O'Fallon
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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Complete your trip
Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.
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Kentucky and St. Louis flights
Browse other Kentucky and St. Louis flight options. Last updated on marzo 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 marzo 10, 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 marzo 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$152 | Average$268 | FlexibilityNo cancel fee | On-time71% |