$59+ Cheap flights from Kentucky to St. Louis (STL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — STL
Oct 9 — Oct 161
Round-trip
1 adult, Economy
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Find cheap flights from Kentucky to St. Louis with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 Kentucky to St. Louis
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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 September 9, 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 September 9, 2026.
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:30 am -
Nonstop1h 15m
Tue 10/132:10 pm -
Nonstop1h 10m
Deal found 9/8![Southwest logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 9/6. 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.
Mon 10/1212:43 pm -
1 stop5h 57m
Fri 10/166:35 pm -
1 stop15h 07m
Deal found 9/6![Frontier logo]()
$126
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:40 pm -
Nonstop1h 15m
Sat 11/148:45 am -
2 stops6h 10m
Deal found 9/7![Southwest logo]()
$132
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/38:55 am -
1 stop7h 10m
Mon 10/55:50 pm -
Nonstop1h 10m
Deal found 9/8![Southwest logo]()
$133
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:40 pm -
Nonstop1h 15m
Fri 11/139:45 pm -
Nonstop1h 15m
Deal found 9/8![Southwest logo]()
$144
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/137:30 am -
1 stop4h 40m
Tue 11/177:30 am -
1 stop5h 02m
Deal found 9/8![United Airlines logo]()
$159
This Mytrip deal was found by Cheapflights users on 9/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:30 am -
1 stop3h 51m
Wed 10/212:00 pm -
1 stop3h 53m
Deal found 9/6![Southern / Mokulele logo]()
$166
This Expedia deal was found by Cheapflights users on 9/8. 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.
Thu 12/39:30 am -
1 stop3h 51m
Sun 12/62:00 pm -
1 stop4h 03m
Deal found 9/8![Southern / Mokulele logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 9/4. 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.
Sat 10/312:43 pm -
2 stops23h 34m
Fri 10/96:35 pm -
1 stop13h 49m
Deal found 9/4![Frontier logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Wed 10/1412:43 pm -
1 stop5h 57m
Sun 10/185:53 pm -
2 stops16h 45m
Deal found 9/8![Frontier logo]()
$201
This American Airlines deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/124:28 pm -
1 stop6h 56m
Mon 12/145:00 am -
1 stop8h 05m
Deal found 9/3![American Airlines logo]()
$243
This Southwest deal was found by Cheapflights users on 9/7. 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 11/57:05 am -
2 stops8h 00m
Mon 11/95:40 am -
1 stop8h 20m
Deal found 9/7![Southwest logo]()
$254
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 September 9, 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 September 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/6. 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.
Mon 10/1212:43 pm -
1 stop5h 57m
Fri 10/166:35 pm -
1 stop15h 07m
Deal found 9/6![Frontier logo]()
$126
This Southwest deal was found by Cheapflights users on 9/4. 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 1/66:00 am -
1 stop4h 55m
Wed 1/138:05 am -
Nonstop1h 10m
Deal found 9/4![Southwest logo]()
$127
This Southern / Mokulele deal was found by Cheapflights users on 9/5. 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 Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/189:30 am -
1 stop3h 51m
Sat 12/199:50 am -
1 stop5h 13m
Deal found 9/5![Southern / Mokulele logo]()
$172
This American Airlines deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/124:28 pm -
1 stop6h 56m
Mon 12/145:00 am -
1 stop8h 05m
Deal found 9/3![American Airlines logo]()
$243
This Southwest deal was found by Cheapflights users on 9/7. 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.
Wed 10/79:05 am -
Nonstop1h 15m
Wed 10/145:50 am -
1 stop5h 05m
Deal found 9/7![Southwest logo]()
$127
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/311:10 am -
1 stop5h 33m
Thu 11/57:30 am -
1 stop4h 26m
Deal found 9/8![United Airlines logo]()
$279
This Southwest deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:40 pm -
Nonstop1h 15m
Sat 11/148:45 am -
2 stops6h 10m
Deal found 9/7![Southwest logo]()
$132
This Delta deal was found by Cheapflights users on 9/7. 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.
Wed 11/45:40 am -
1 stop6h 11m
Mon 11/96:00 am -
1 stop4h 28m
Deal found 9/7![Delta logo]()
$305
This KAYAK deal was found by Cheapflights users on 9/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:30 am -
1 stop3h 51m
Sun 10/42:00 pm -
1 stop4h 03m
Deal found 9/4![Southern / Mokulele logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 9/4. 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.
Sat 10/312:43 pm -
2 stops23h 34m
Fri 10/96:35 pm -
1 stop13h 49m
Deal found 9/4![Frontier logo]()
$195
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:40 pm -
Nonstop1h 15m
Sun 12/65:40 am -
1 stop4h 50m
Deal found 9/8![Southwest logo]()
$228
This American Airlines deal was found by Cheapflights users on 9/5. 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.
Sat 10/315:00 am -
1 stop4h 37m
Sun 11/19:08 am -
1 stop7h 19m
Deal found 9/5![American Airlines logo]()
$290
This Frontier deal was found by Cheapflights users on 9/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/291:33 pm -
1 stop10h 43m
Mon 11/24:26 pm -
1 stop6h 27m
Deal found 9/8![Frontier logo]()
$280
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Thu 10/226:00 am -
1 stop7h 13m
Mon 10/262:55 pm -
1 stop6h 02m
Deal found 9/7![United Airlines logo]()
$313
This Delta deal was found by Cheapflights users on 9/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:19 pm -
1 stop5h 23m
Wed 10/710:14 am -
1 stop3h 57m
Deal found 9/8![Delta logo]()
$319
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:10 pm -
1 stop5h 05m
Tue 10/1310:55 am -
2 stops5h 05m
Deal found 9/8![Southwest logo]()
$243
This American Airlines deal was found by Cheapflights users on 9/4. 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.
Thu 11/197:09 pm -
1 stop5h 52m
Sun 11/225:29 pm -
1 stop5h 13m
Deal found 9/4![American Airlines logo]()
$299
This Southwest deal was found by Cheapflights users on 9/5. 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.
Thu 10/112:35 pm -
Nonstop1h 15m
Tue 10/62:10 pm -
Nonstop1h 10m
Deal found 9/5![Southwest logo]()
$245
This American Airlines deal was found by Cheapflights users on 9/4. 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 10/27:18 pm -
1 stop4h 24m
Mon 10/55:27 pm -
1 stop5h 42m
Deal found 9/4![American Airlines logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 9/4. 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.
Sat 9/1912:43 pm -
2 stops21h 52m
Wed 9/232:29 pm -
1 stop20h 09m
Deal found 9/4![Frontier logo]()
$308
This Delta deal was found by Cheapflights users on 9/5. 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.
Thu 11/266:00 am -
1 stop5h 20m
Mon 11/3010:00 am -
1 stop3h 55m
Deal found 9/5![Delta logo]()
$339
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/611:00 am -
1 stop4h 28m
Tue 2/97:00 pm -
1 stop3h 56m
Deal found 9/8![United Airlines logo]()
$351
This American Airlines deal was found by Cheapflights users on 9/7. 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.
Thu 11/125:16 am -
1 stop3h 51m
Sun 11/155:29 pm -
1 stop5h 17m
Deal found 9/7![American Airlines logo]()
$299
This Southwest deal was found by Cheapflights users on 9/7. 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 11/57:05 am -
2 stops8h 00m
Mon 11/95:40 am -
1 stop8h 20m
Deal found 9/7![Southwest logo]()
$254
This CheapOair deal was found by Cheapflights users on 9/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/225:16 pm -
1 stop27h 01m
Sat 9/268:10 pm -
1 stop19h 01m
Deal found 9/7![Frontier logo]()
$309
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:26 pm -
1 stop4h 33m
Mon 10/125:27 pm -
1 stop5h 30m
Deal found 9/9![American Airlines logo]()
$299
This Delta deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/52:47 pm -
1 stop6h 48m
Mon 10/125:35 pm -
1 stop5h 24m
Deal found 9/6![Delta logo]()
$363
This United Airlines deal was found by Cheapflights users on 9/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/37:00 am -
1 stop6h 13m
Thu 2/48:05 am -
1 stop4h 15m
Deal found 9/8![United Airlines logo]()
$367
This Southwest deal was found by Cheapflights users on 9/3. 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.
Sat 12/128:15 am -
1 stop7h 05m
Mon 12/148:25 am -
2 stops10h 20m
Deal found 9/3![Southwest logo]()
$261
This United Airlines deal was found by Cheapflights users on 9/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/281:49 pm -
1 stop4h 10m
Sat 10/3111:15 am -
1 stop6h 55m
Deal found 9/4![United Airlines logo]()
$371
Last-minute flights from Kentucky to St. LouisDiscover last-minute flight deals from Kentucky to St. Louis. Data last updated September 9, 2026 and is based on user searches.
Discover last-minute flight deals from Kentucky to St. Louis. Data last updated September 9, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 9/119:40 am -
1 stop3h 51m
Sun 9/132:00 pm -
1 stop3h 53m
Deal found 9/4![Southern / Mokulele logo]()
$170
This Southern / Mokulele deal was found by Cheapflights users on 9/6. 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 Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/119:30 am -
1 stop3h 51m
Mon 9/142:00 pm -
1 stop4h 03m
Deal found 9/6![Southern / Mokulele logo]()
$172
This eDestinos deal was found by Cheapflights users on 9/5. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:30 am -
1 stop3h 51m
Tue 10/67:20 pm -
1 stop13h 43m
Deal found 9/5![Southern / Mokulele logo]()
$187
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/38:55 am -
1 stop7h 10m
Mon 10/55:50 pm -
Nonstop1h 10m
Deal found 9/8![Southwest logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 9/4. 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.
Sat 10/312:43 pm -
2 stops23h 34m
Fri 10/96:35 pm -
1 stop13h 49m
Deal found 9/4![Frontier logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 9/6. 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.
Mon 10/59:30 am -
1 stop3h 51m
Thu 10/82:00 pm -
1 stop4h 03m
Deal found 9/6![Southern / Mokulele logo]()
$171
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:30 am -
Nonstop1h 15m
Tue 10/132:10 pm -
Nonstop1h 10m
Deal found 9/8![Southwest logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 10/69:43 am -
2 stops27h 27m
Fri 10/92:10 pm -
1 stop3h 43m
Deal found 9/4![Multiple Airlines logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 9/6. 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.
Mon 10/1212:43 pm -
1 stop5h 57m
Fri 10/166:35 pm -
1 stop15h 07m
Deal found 9/6![Frontier logo]()
$126
This Mytrip deal was found by Cheapflights users on 9/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:30 am -
1 stop3h 51m
Wed 10/212:00 pm -
1 stop3h 53m
Deal found 9/6![Southern / Mokulele logo]()
$166
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Wed 10/1412:43 pm -
1 stop5h 57m
Sun 10/185:53 pm -
2 stops16h 45m
Deal found 9/8![Frontier logo]()
$201
This CheapOair deal was found by Cheapflights users on 9/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/239:30 am -
1 stop3h 51m
Mon 10/264:30 pm -
1 stop27h 11m
Deal found 9/6![Multiple Airlines logo]()
$191
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 September 9, 2026.
Search for one-way flight options from Kentucky to St. Louis. Find affordable one-way fares based on user searches. Data last updated September 9, 2026.
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/298:55 pm -
Nonstop1h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Southwest logo]()
$59
This Frontier deal was found by Cheapflights users on 9/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:41 pm -
1 stop14h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$65
This SmartFares deal was found by Cheapflights users on 9/6. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/169:30 am -
1 stop3h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Southern / Mokulele logo]()
$73
This Southwest deal was found by Cheapflights users on 9/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/710:05 am -
2 stops6h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Southwest logo]()
$74
This Delta deal was found by Cheapflights users on 9/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/95:14 pm -
1 stop4h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Delta logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 11/39:30 am -
1 stop3h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Southern / Mokulele logo]()
$82
This Southern / Mokulele deal was found by Cheapflights users on 9/7. 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.
Tue 10/69:30 am -
1 stop3h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Southern / Mokulele logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 10/69:43 am -
2 stops27h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 11/38:26 pm -
2 stops21h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$91
This Southern / Mokulele deal was found by Cheapflights users on 9/6. 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 Southern / Mokulele is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:30 am -
1 stop3h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Southern / Mokulele logo]()
$93
This CheapOair deal was found by Cheapflights users on 9/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:56 pm -
1 stop21h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Frontier logo]()
$97
This Frontier deal was found by Cheapflights users on 9/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/56:04 pm -
1 stop6h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Frontier logo]()
$100
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 September 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $117 (Southwest) |
One-way from | $59 (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 7,457,451 searches. Data last updated September 9, 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 Nashville Intl - STL Lambert-St Louis
BNASTL
Nashville Intl
Tue 9/29
8:55 pm-10:15 pm
Nonstop1h 20m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$59
NashvilleSt. Louis
BNA Nashville Intl - STL Lambert-St Louis
BNASTL
Nashville Intl
Thu 11/5
9:41 pm-12:33 pm
1 stop14h 52m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$65
NashvilleSt. Louis
BNA Nashville Intl - STL Lambert-St Louis
BNASTL
Nashville Intl
Wed 9/30
2:35 pm-8:00 pm
1 stop5h 25m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$69
NashvilleSt. Louis
BNA Nashville Intl - STL Lambert-St Louis
BNASTL
Nashville Intl
Mon 11/9
5:14 pm-9:42 pm
1 stop4h 28m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
NashvilleSt. Louis
BNA Nashville Intl - STL Lambert-St Louis
BNASTL
Nashville Intl
Tue 11/10
9:25 am-1:23 pm
1 stop3h 58m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$79
NashvilleSt. Louis
BNA Nashville Intl - STL Lambert-St Louis
BNASTL
Nashville Intl
Fri 11/6
9:30 am-1:21 pm
1 stop3h 51m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$82
NashvilleSt. Louis
BNA Nashville Intl - STL Lambert-St Louis
BNASTL
Nashville Intl
Tue 10/6
9:30 am-1:21 pm
1 stop3h 51m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$83
NashvilleSt. Louis
BNA Nashville Intl - STL Lambert-St Louis
BNASTL
Nashville Intl
Mon 10/19
9:30 am-1:21 pm
1 stop3h 51m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$93
CincinnatiSt. Louis
CVG Cincinnati Cinci./N. Kentucky - STL Lambert-St Louis
CVGSTL
Cincinnati Cinci./N. Kentucky
Wed 9/30
8:56 pm-5:54 pm
1 stop21h 58m
Lambert-St Louis
Wed 12/31
12:00 am-1:00 am
Nonstop0h 00m
$97
Quickest round-trip
NashvilleSt. Louis
BNA Nashville Intl - STL Lambert-St Louis
BNASTL
Nashville Intl
Fri 11/6
6:30 am-7:45 am
Nonstop1h 15m
Lambert-St Louis
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$123
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
TYS-STL
SDF-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
TYS-STL
SDF-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 locationsFairview Heights
O'Fallon
Fenton
Swansea
Eureka
Maryland Heights
Collinsville
Wentzville
Edwardsville
Glencoe
Chesterfield
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Alternative routes for Kentucky to St. Louis
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Complete your trip
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Kentucky and St. Louis flights
Browse other Kentucky and St. Louis flight options. Last updated on September 9, 2026.
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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 September 9, 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 7,457,451 searches. Data last updated September 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$228 | Average$388 | FlexibilityNo cancel fee | On-time71% |