$90+ Cheap flights from Kansas 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 4/17. Fares are subject to change and may not be available on all flights or dates of travel.
ICT — STL
Apr 22 — Apr 291
Round-trip
1 adult, Economy
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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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Cheapest flights from Kansas to St. LouisExplore the most affordable flight options available from Kansas to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 23, 2026.
Explore the most affordable flight options available from Kansas to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 23, 2026.
This CheapOair deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:46 pm
MCI
- STL
1 stop13h 02m
Frontier
Fri 4/108:16 pm
STL
- MCI
1 stop23h 42m
Frontier
Deal found 3/21![Frontier logo]()
$191
This Southwest deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/295:05 am
TUL
- STL
1 stop6h 25m
Southwest
Thu 4/305:45 am
STL
- TUL
1 stop6h 45m
Southwest
Deal found 3/23![Southwest logo]()
$240
This Kiwi.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/1611:53 am
MCI
- STL
1 stop18h 57m
Frontier
Thu 4/2311:25 am
STL
- MCI
1 stop23h 09m
Frontier
Deal found 3/19![Frontier logo]()
$250
This Southwest deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/215:05 am
ICT
- STL
1 stop6h 25m
Southwest
Thu 4/235:40 am
STL
- ICT
1 stop6h 30m
Southwest
Deal found 3/23![Southwest logo]()
$251
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/412:05 pm
MCI
- STL
Nonstop1h 05m
Southwest
Wed 5/68:55 pm
STL
- MCI
Nonstop1h 05m
Southwest
Deal found 3/22![Southwest logo]()
$255
This CheapOair deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/268:40 pm
MCI
- STL
1 stop13h 09m
Frontier
Fri 3/278:12 pm
STL
- MCI
1 stop23h 43m
Frontier
Deal found 3/21![Frontier logo]()
$261
This CheapOair deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/78:43 pm
MCI
- STL
1 stop13h 05m
Frontier
Sat 4/118:16 pm
STL
- MCI
1 stop23h 17m
Frontier
Deal found 3/23![Frontier logo]()
$267
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:20 am
TUL
- STL
1 stop7h 40m
Southwest
Thu 5/144:40 pm
STL
- TUL
1 stop7h 05m
Southwest
Deal found 3/22![Southwest logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/78:43 pm
MCI
- STL
1 stop13h 05m
Multiple Airlines
Mon 4/1312:22 pm
STL
- MCI
1 stop28h 47m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$277
This CheapOair deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/111:45 pm
MCI
- STL
1 stop5h 38m
Frontier
Fri 6/128:08 pm
STL
- MCI
1 stop16h 52m
Frontier
Deal found 3/20![Frontier logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/182:51 pm
MCI
- STL
2 stops39h 59m
Frontier
Sat 4/258:17 pm
STL
- MCI
1 stop17h 13m
Frontier
Deal found 3/21![Frontier logo]()
$289
This Southwest deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/145:05 am
ICT
- STL
1 stop4h 25m
Southwest
Mon 4/205:15 pm
STL
- ICT
1 stop5h 00m
Southwest
Deal found 3/19![Southwest logo]()
$293
Best flights from Kansas to St. LouisDiscover carefully curated flight deals from Kansas to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 23, 2026.
Discover carefully curated flight deals from Kansas to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 23, 2026.
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/412:05 pm
MCI
- STL
Nonstop1h 05m
Southwest
Wed 5/68:55 pm
STL
- MCI
Nonstop1h 05m
Southwest
Deal found 3/22![Southwest logo]()
$255
This United Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/153:35 pm
TUL
- STL
1 stop6h 53m
United Airlines
Wed 4/226:00 am
STL
- TUL
1 stop5h 15m
United Airlines
Deal found 3/18![United Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/205:16 pm
ICT
- STL
1 stop6h 20m
Delta
Thu 4/239:26 am
STL
- ICT
1 stop4h 24m
Delta
Deal found 3/20![Delta logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2411:19 am
MCI
- STL
1 stop19h 31m
Frontier
Sun 4/264:59 pm
STL
- MCI
2 stops17h 29m
Frontier
Deal found 3/20![Frontier logo]()
$355
This American Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:32 pm
TUL
- STL
1 stop4h 14m
American Airlines
Sun 4/265:20 am
STL
- TUL
1 stop5h 03m
American Airlines
Deal found 3/21![American Airlines logo]()
$360
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:20 am
TUL
- STL
1 stop7h 40m
Southwest
Thu 5/144:40 pm
STL
- TUL
1 stop7h 05m
Southwest
Deal found 3/22![Southwest logo]()
$277
This Southwest deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/145:05 am
ICT
- STL
1 stop4h 25m
Southwest
Mon 4/205:15 pm
STL
- ICT
1 stop5h 00m
Southwest
Deal found 3/19![Southwest logo]()
$293
This Southwest deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/1510:45 am
TUL
- STL
2 stops7h 10m
Southwest
Wed 4/228:35 am
STL
- TUL
1 stop5h 05m
Southwest
Deal found 3/18![Southwest logo]()
$294
This United Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/45:15 pm
MCI
- STL
1 stop3h 58m
United Airlines
Wed 5/67:45 am
STL
- MCI
1 stop4h 39m
United Airlines
Deal found 3/21![United Airlines logo]()
$361
This Delta deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/77:35 am
ICT
- STL
1 stop4h 13m
Delta
Fri 4/1012:28 pm
STL
- ICT
1 stop7h 37m
Delta
Deal found 3/19![Delta logo]()
$369
This United Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/103:21 pm
MCI
- STL
1 stop6h 31m
United Airlines
Sun 4/126:30 am
STL
- MCI
1 stop3h 57m
United Airlines
Deal found 3/19![United Airlines logo]()
$367
This Southwest deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1510:45 am
TUL
- STL
2 stops7h 15m
Southwest
Thu 4/305:45 am
STL
- TUL
1 stop6h 45m
Southwest
Deal found 3/20![Southwest logo]()
$304
This Southwest deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/204:00 pm
ICT
- STL
2 stops8h 15m
Southwest
Thu 4/233:00 pm
STL
- ICT
1 stop7h 15m
Southwest
Deal found 3/20![Southwest logo]()
$312
This Southwest deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1810:35 am
TUL
- STL
2 stops7h 30m
Southwest
Sat 4/258:45 am
STL
- TUL
2 stops8h 35m
Southwest
Deal found 3/20![Southwest logo]()
$319
This Southwest deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:10 pm
TUL
- STL
2 stops6h 45m
Southwest
Tue 5/123:55 pm
STL
- TUL
1 stop7h 05m
Southwest
Deal found 3/20![Southwest logo]()
$324
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2910:20 am
TUL
- STL
1 stop7h 40m
Southwest
Thu 4/306:00 am
STL
- TUL
2 stops10h 00m
Southwest
Deal found 3/22![Southwest logo]()
$334
This Southwest deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/105:35 pm
MCI
- STL
1 stop5h 50m
Southwest
Mon 4/135:40 am
STL
- MCI
1 stop3h 40m
Southwest
Deal found 3/20![Southwest logo]()
$343
This Southwest deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/195:00 am
ICT
- STL
1 stop4h 30m
Southwest
Sat 7/254:00 pm
STL
- ICT
1 stop6h 25m
Southwest
Deal found 3/20![Southwest logo]()
$348
This Southwest deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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.
Sun 4/125:00 am
ICT
- STL
1 stop7h 05m
Southwest
Mon 4/135:15 pm
STL
- ICT
1 stop5h 00m
Southwest
Deal found 3/19![Southwest logo]()
$349
This Southwest deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/245:00 am
TUL
- STL
1 stop4h 10m
Southwest
Sun 7/266:35 pm
STL
- TUL
1 stop5h 30m
Southwest
Deal found 3/20![Southwest logo]()
$349
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/225:10 pm
TUL
- STL
1 stop5h 30m
Southwest
Mon 5/257:20 am
STL
- TUL
1 stop4h 55m
Southwest
Deal found 3/22![Southwest logo]()
$349
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:15 am
ICT
- STL
2 stops9h 00m
Southwest
Tue 5/1212:40 pm
STL
- ICT
2 stops8h 05m
Southwest
Deal found 3/22![Southwest logo]()
$357
This Southwest deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/1612:05 pm
MCI
- STL
Nonstop1h 05m
Southwest
Thu 4/239:50 pm
STL
- MCI
Nonstop1h 05m
Southwest
Deal found 3/19![Southwest logo]()
$357
This Southwest deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/245:50 pm
MCI
- STL
Nonstop1h 05m
Southwest
Sun 4/266:15 am
STL
- MCI
1 stop4h 50m
Southwest
Deal found 3/20![Southwest logo]()
$357
This Southwest deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 5/155:50 pm
MCI
- STL
Nonstop1h 05m
Southwest
Sun 5/179:55 pm
STL
- MCI
Nonstop1h 05m
Southwest
Deal found 3/19![Southwest logo]()
$357
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/224:00 pm
ICT
- STL
1 stop6h 45m
Southwest
Sat 7/115:40 am
STL
- ICT
1 stop6h 40m
Southwest
Deal found 3/22![Southwest logo]()
$359
This Southwest deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 5/154:00 pm
ICT
- STL
2 stops8h 15m
Southwest
Mon 5/181:45 pm
STL
- ICT
2 stops8h 30m
Southwest
Deal found 3/19![Southwest logo]()
$359
This Southwest deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/215:15 am
MCI
- STL
1 stop4h 15m
Southwest
Thu 5/219:50 pm
STL
- MCI
Nonstop1h 05m
Southwest
Deal found 3/21![Southwest logo]()
$371
This Southwest deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/164:00 pm
ICT
- STL
2 stops8h 15m
Southwest
Sat 4/186:15 am
STL
- ICT
1 stop6h 50m
Southwest
Deal found 3/20![Southwest logo]()
$374
Last-minute flights from Kansas to St. LouisDiscover last-minute flight deals from Kansas to St. Louis. Data last updated March 23, 2026 and is based on user searches.
Discover last-minute flight deals from Kansas to St. Louis. Data last updated March 23, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/268:40 pm
MCI
- STL
1 stop13h 09m
Frontier
Fri 3/278:12 pm
STL
- MCI
1 stop23h 43m
Frontier
Deal found 3/21![Frontier logo]()
$261
This CheapOair deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/78:43 pm
MCI
- STL
1 stop13h 05m
Frontier
Sat 4/118:16 pm
STL
- MCI
1 stop23h 17m
Frontier
Deal found 3/23![Frontier logo]()
$267
This Kiwi.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/78:43 pm
MCI
- STL
1 stop13h 05m
Multiple Airlines
Mon 4/1312:22 pm
STL
- MCI
1 stop28h 47m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$277
This CheapOair deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:46 pm
MCI
- STL
1 stop13h 02m
Frontier
Fri 4/108:16 pm
STL
- MCI
1 stop23h 42m
Frontier
Deal found 3/21![Frontier logo]()
$191
This Southwest deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/145:05 am
ICT
- STL
1 stop4h 25m
Southwest
Mon 4/205:15 pm
STL
- ICT
1 stop5h 00m
Southwest
Deal found 3/19![Southwest logo]()
$293
This Southwest deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1510:45 am
TUL
- STL
1 stop4h 05m
Southwest
Thu 4/305:45 am
STL
- TUL
1 stop6h 45m
Southwest
Deal found 3/20![Southwest logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/1611:53 am
MCI
- STL
1 stop18h 57m
Frontier
Thu 4/2311:25 am
STL
- MCI
1 stop23h 09m
Frontier
Deal found 3/19![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/182:51 pm
MCI
- STL
2 stops39h 59m
Frontier
Sat 4/258:17 pm
STL
- MCI
1 stop17h 13m
Frontier
Deal found 3/21![Frontier logo]()
$289
This Southwest deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/205:50 pm
MCI
- STL
Nonstop1h 05m
Southwest
Mon 4/279:50 pm
STL
- MCI
Nonstop1h 05m
Southwest
Deal found 3/23![Southwest logo]()
$294
This Southwest deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/215:05 am
ICT
- STL
1 stop6h 25m
Southwest
Thu 4/235:40 am
STL
- ICT
1 stop6h 30m
Southwest
Deal found 3/23![Southwest logo]()
$251
This Southwest deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/235:10 am
TUL
- STL
1 stop3h 55m
Southwest
Fri 4/247:20 am
STL
- TUL
1 stop4h 55m
Southwest
Deal found 3/23![Southwest logo]()
$297
This Southwest deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/295:05 am
TUL
- STL
1 stop6h 25m
Southwest
Thu 4/305:45 am
STL
- TUL
1 stop6h 45m
Southwest
Deal found 3/23![Southwest logo]()
$240
One-way flights from Kansas to St. LouisSearch for one-way flight options from Kansas to St. Louis. Find affordable one-way fares based on user searches. Data last updated March 23, 2026.
Search for one-way flight options from Kansas to St. Louis. Find affordable one-way fares based on user searches. Data last updated March 23, 2026.
This Frontier deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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.
Fri 4/172:15 pm
MCI
- STL
1 stop5h 06m
Frontier
Deal found 3/18![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/2611:53 am
MCI
- STL
1 stop18h 57m
Frontier
Deal found 3/18![Frontier logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/1611:53 am
MCI
- STL
1 stop18h 57m
Frontier
Deal found 3/18![Frontier logo]()
$100
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2210:20 am
TUL
- STL
1 stop7h 40m
Southwest
Deal found 3/22![Southwest logo]()
$103
This Southwest deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2211:55 am
MCI
- STL
Nonstop1h 05m
Southwest
Deal found 3/23![Southwest logo]()
$112
This Southwest deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/226:50 pm
ICT
- STL
1 stop4h 20m
Southwest
Deal found 3/22![Southwest logo]()
$114
This Frontier deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/221:45 pm
MCI
- STL
1 stop5h 38m
Frontier
Deal found 3/22![Frontier logo]()
$115
This Trip.com deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/38:43 pm
MCI
- STL
1 stop13h 05m
Frontier
Deal found 3/22![Frontier logo]()
$124
This Kiwi.com deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/252:51 pm
MCI
- STL
1 stop28h 30m
Frontier
Deal found 3/23![Frontier logo]()
$128
This Kiwi.com deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/162:34 pm
MCI
- STL
1 stop28h 49m
Frontier
Deal found 3/20![Frontier logo]()
$129
This Kiwi.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/182:51 pm
MCI
- STL
2 stops39h 59m
Frontier
Deal found 3/21![Frontier logo]()
$131
This Expedia deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/191:45 pm
MCI
- STL
1 stop5h 38m
Frontier
Deal found 3/20![Frontier logo]()
$135
Find flight deals from Kansas to St. Louis
Keep the following information in mind while searching for Kansas to St. Louis flight deals. Data was last updated March 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $191 (CheapOair) |
One-way from | $90 (Frontier) |
Popular in | January |
Cheapest in | April |
Average price | $453 |
Good round-trip deal | $490 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Kansas 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 March 23, 2026.
Use the filters below to find and compare flights from Kansas to St. Louis that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
Kansas CitySt. Louis
MCI - STL
MCISTL
Kansas City
Mon 5/4
12:05 pm-1:10 pm
Nonstop1h 05m
Lambert-St Louis
Wed 5/6
8:55 pm-10:00 pm
Nonstop1h 05m
$255
TulsaSt. Louis
TUL - STL
TULSTL
Tulsa
Tue 5/12
10:20 am-6:00 pm
1 stop7h 40m
Lambert-St Louis
Thu 5/14
4:40 pm-11:45 pm
1 stop7h 05m
$277
TulsaSt. Louis
TUL - STL
TULSTL
Tulsa
Wed 4/15
3:35 pm-10:28 pm
1 stop6h 53m
Lambert-St Louis
Wed 4/22
6:00 am-11:15 am
1 stop5h 15m
$289
WichitaSt. Louis
ICT - STL
ICTSTL
Wichita Eisenhower National
Tue 4/14
5:05 am-9:30 am
1 stop4h 25m
Lambert-St Louis
Mon 4/20
5:15 pm-10:15 pm
1 stop5h 00m
$293
TulsaSt. Louis
TUL - STL
TULSTL
Tulsa
Wed 4/15
10:45 am-5:55 pm
2 stops7h 10m
Lambert-St Louis
Wed 4/22
8:35 am-1:40 pm
1 stop5h 05m
$294
TulsaSt. Louis
TUL - STL
TULSTL
Tulsa
Wed 4/15
10:45 am-6:00 pm
2 stops7h 15m
Lambert-St Louis
Thu 4/30
5:45 am-12:30 pm
1 stop6h 45m
$304
WichitaSt. Louis
ICT - STL
ICTSTL
Wichita Eisenhower National
Mon 4/20
5:16 pm-11:36 pm
1 stop6h 20m
Lambert-St Louis
Thu 4/23
9:26 am-1:50 pm
1 stop4h 24m
$307
WichitaSt. Louis
ICT - STL
ICTSTL
Wichita Eisenhower National
Mon 4/20
4:00 pm-12:15 am
2 stops8h 15m
Lambert-St Louis
Thu 4/23
3:00 pm-10:15 pm
1 stop7h 15m
$312
TulsaSt. Louis
TUL - STL
TULSTL
Tulsa
Sat 4/18
10:35 am-6:05 pm
2 stops7h 30m
Lambert-St Louis
Sat 4/25
8:45 am-5:20 pm
2 stops8h 35m
$319
TulsaSt. Louis
TUL - STL
TULSTL
Tulsa
Fri 5/8
5:10 pm-11:55 pm
2 stops6h 45m
Lambert-St Louis
Tue 5/12
3:55 pm-11:00 pm
1 stop7h 05m
$324
Showing 1-10 of 59 resultsSorted by cheapest first
Best time to book a flight from Kansas to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Kansas with our price prediction graph.
MCI-STL
TUL-STL
ICT-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 Kansas to St. Louis
USKS-STL
MCI-STL
TUL-STL
ICT-STL
What is the cheapest month to book a flight from Kansas to St. Louis?
Currently, October is the cheapest month in which you can book a flight from Kansas to St. Louis (average of $84). Flying from Kansas to St. Louis in March is currently the most expensive (average of $346). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Kansas to St. Louis?
Related info for your journey
Find useful and relevant information for your journey from Kansas 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
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Kansas 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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Find flights from Kansas to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Kansas and St. Louis flights
Browse other Kansas and St. Louis flight options. Last updated on March 23, 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 March 23, 2026.
Kansas to St. Louis flights
Consider these flights traveling from Kansas to St. Louis.
Top 2 airlines flying from Kansas to St. Louis
Discover the top 2 airlines that operate flights from Kansas 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 March 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$260 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$278 | Average$373 | FlexibilityNo cancel fee | On-time71% |