$100+ Cheap flights from Missouri 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — STL
May 29 — Jun 51
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Missouri 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Missouri to St. Louis
Cheapest
Best
Last-minute
One-way
Cheapest flights from Missouri to St. LouisExplore the most affordable flight options available from Missouri to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2026.
Explore the most affordable flight options available from Missouri to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 6/16:24 pm
MCI
- STL
1 stop23h 09m
Frontier
Fri 6/54:19 pm
STL
- MCI
2 stops25h 10m
Frontier
Deal found 4/28![Frontier logo]()
$190
This CheapOair deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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 7/141:45 pm
MCI
- STL
1 stop5h 38m
Frontier
Tue 7/218:08 pm
STL
- MCI
1 stop16h 47m
Frontier
Deal found 4/26![Frontier logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 6/36:24 pm
MCI
- STL
1 stop23h 09m
Frontier
Sun 6/74:19 pm
STL
- MCI
2 stops25h 10m
Frontier
Deal found 4/27![Frontier logo]()
$243
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/262:34 pm
MCI
- STL
1 stop28h 49m
Frontier
Mon 6/15:27 pm
STL
- MCI
2 stops20h 22m
Frontier
Deal found 4/28![Frontier logo]()
$255
This CheapOair deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/161:45 pm
MCI
- STL
1 stop5h 38m
Frontier
Wed 6/178:08 pm
STL
- MCI
1 stop16h 52m
Frontier
Deal found 4/25![Frontier logo]()
$261
This CheapOair deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/211:45 pm
MCI
- STL
1 stop5h 38m
Frontier
Wed 7/228:08 pm
STL
- MCI
1 stop16h 47m
Frontier
Deal found 4/24![Frontier logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/56:24 pm
MCI
- STL
1 stop14h 31m
Frontier
Sun 6/79:06 pm
STL
- MCI
2 stops16h 43m
Frontier
Deal found 4/27![Frontier logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/56:24 pm
MCI
- STL
1 stop14h 31m
Multiple Airlines
Sun 6/74:19 pm
STL
- MCI
1 stop17h 10m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 5/132:30 pm
TBN
- STL
2 stops26h 24m
Multiple Airlines
Sun 5/173:33 pm
STL
- TBN
1 stop20h 12m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$462
This Kiwi.com deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/102:30 pm
TBN
- STL
2 stops33h 51m
Multiple Airlines
Thu 5/143:33 pm
STL
- TBN
1 stop20h 12m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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 6/68:00 am
COU
- STL
1 stop7h 46m
United Airlines
Wed 6/106:00 am
STL
- COU
1 stop15h 59m
United Airlines
Deal found 4/26![United Airlines logo]()
$546
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/146:00 am
COU
- STL
1 stop34h 00m
American Airlines
Mon 5/184:30 pm
STL
- COU
1 stop23h 28m
American Airlines
Deal found 4/28![American Airlines logo]()
$681
Best flights from Missouri to St. LouisDiscover carefully curated flight deals from Missouri to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2026.
Discover carefully curated flight deals from Missouri to St. Louis that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2026.
This Southwest deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/218:30 am
MCI
- STL
Nonstop1h 05m
Southwest
Wed 7/228:35 am
STL
- MCI
Nonstop1h 05m
Southwest
Deal found 4/24![Southwest logo]()
$351
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 5/1710:35 am
MCI
- STL
2 stops22h 20m
Multiple Airlines
Sat 5/238:08 pm
STL
- MCI
1 stop17h 41m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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 6/63:16 pm
MCI
- STL
1 stop6h 00m
United Airlines
Tue 6/91:13 pm
STL
- MCI
1 stop4h 23m
United Airlines
Deal found 4/26![United Airlines logo]()
$408
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/146:00 am
COU
- STL
1 stop34h 00m
American Airlines
Mon 5/184:30 pm
STL
- COU
1 stop23h 28m
American Airlines
Deal found 4/28![American Airlines logo]()
$681
This Southwest deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 9/18:20 am
MCI
- STL
Nonstop1h 05m
Southwest
Thu 9/38:30 am
STL
- MCI
Nonstop1h 05m
Southwest
Deal found 4/28![Southwest logo]()
$364
This Southwest deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 6/56:05 pm
MCI
- STL
Nonstop1h 05m
Southwest
Sun 6/78:20 pm
STL
- MCI
1 stop3h 50m
Southwest
Deal found 4/27![Southwest logo]()
$411
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 5/132:30 pm
TBN
- STL
2 stops26h 24m
Multiple Airlines
Sun 5/173:33 pm
STL
- TBN
1 stop20h 12m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$462
This Southwest deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/223:30 pm
MCI
- STL
1 stop5h 20m
Southwest
Fri 5/298:25 am
STL
- MCI
1 stop4h 25m
Southwest
Deal found 4/24![Southwest logo]()
$411
This Kiwi.com deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/102:30 pm
TBN
- STL
2 stops33h 51m
Multiple Airlines
Thu 5/143:33 pm
STL
- TBN
1 stop20h 12m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” 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 6/68:00 am
COU
- STL
1 stop7h 46m
United Airlines
Wed 6/106:00 am
STL
- COU
1 stop15h 59m
United Airlines
Deal found 4/26![United Airlines logo]()
$546
This Southwest deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/314:55 pm
MCI
- STL
1 stop5h 00m
Southwest
Sun 8/29:45 pm
STL
- MCI
Nonstop1h 05m
Southwest
Deal found 4/25![Southwest logo]()
$411
This Southwest deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 5/178:25 am
MCI
- STL
Nonstop1h 05m
Southwest
Sat 5/2310:35 am
STL
- MCI
Nonstop1h 10m
Southwest
Deal found 4/27![Southwest logo]()
$429
Last-minute flights from Missouri to St. LouisDiscover last-minute flight deals from Missouri to St. Louis. Data last updated April 29, 2026 and is based on user searches.
Discover last-minute flight deals from Missouri to St. Louis. Data last updated April 29, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/102:30 pm
TBN
- STL
2 stops33h 51m
Multiple Airlines
Thu 5/143:33 pm
STL
- TBN
1 stop20h 12m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$464
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Tue 5/122:34 pm
MCI
- STL
2 stops18h 21m
Frontier
Fri 5/155:27 pm
STL
- MCI
1 stop24h 02m
Frontier
Deal found 4/23![Frontier logo]()
$324
This American Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:05 am
MCI
- STL
1 stop4h 42m
American Airlines
Fri 5/158:03 pm
STL
- MCI
1 stop4h 13m
American Airlines
Deal found 4/24![American Airlines logo]()
$330
This Southwest deal was found by Cheapflights users on 4/23. 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 5/124:50 pm
MCI
- STL
Nonstop1h 05m
Southwest
Fri 5/159:50 pm
STL
- MCI
Nonstop1h 05m
Southwest
Deal found 4/23![Southwest logo]()
$335
This American Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:01 am
COU
- STL
1 stop22h 24m
American Airlines
Sat 5/168:00 am
STL
- COU
1 stop7h 58m
American Airlines
Deal found 4/27![American Airlines logo]()
$696
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 5/132:30 pm
TBN
- STL
2 stops26h 24m
Multiple Airlines
Sun 5/173:33 pm
STL
- TBN
1 stop20h 12m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$462
This American Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/146:00 am
COU
- STL
1 stop34h 00m
American Airlines
Mon 5/184:30 pm
STL
- COU
1 stop23h 28m
American Airlines
Deal found 4/28![American Airlines logo]()
$681
This Kiwi.com deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/156:24 pm
MCI
- STL
1 stop14h 31m
Frontier
Sun 5/1712:36 pm
STL
- MCI
2 stops25h 13m
Frontier
Deal found 4/25![Frontier logo]()
$308
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 5/186:24 pm
MCI
- STL
1 stop23h 09m
Frontier
Fri 5/228:08 pm
STL
- MCI
1 stop17h 41m
Frontier
Deal found 4/27![Frontier logo]()
$361
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/262:34 pm
MCI
- STL
1 stop28h 49m
Frontier
Mon 6/15:27 pm
STL
- MCI
2 stops20h 22m
Frontier
Deal found 4/28![Frontier logo]()
$255
This Southwest deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/2611:55 am
MCI
- STL
Nonstop1h 05m
Southwest
Mon 6/13:50 pm
STL
- MCI
Nonstop1h 10m
Southwest
Deal found 4/28![Southwest logo]()
$327
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/265:00 pm
MCI
- STL
1 stop4h 21m
United Airlines
Mon 6/15:41 pm
STL
- MCI
1 stop4h 01m
United Airlines
Deal found 4/28![United Airlines logo]()
$338
One-way flights from Missouri to St. LouisSearch for one-way flight options from Missouri to St. Louis. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
Search for one-way flight options from Missouri to St. Louis. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/272:34 pm
MCI
- STL
1 stop28h 49m
Frontier
Deal found 4/24![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 6/246:16 pm
MCI
- STL
1 stop23h 14m
Frontier
Deal found 4/27![Frontier logo]()
$104
This Southwest deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2711:55 am
MCI
- STL
Nonstop1h 05m
Southwest
Deal found 4/24![Southwest logo]()
$112
This Expedia deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
Sat 7/251:45 pm
MCI
- STL
1 stop5h 38m
Frontier
Deal found 4/27![Frontier logo]()
$115
This Frontier deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 6/121:45 pm
MCI
- STL
1 stop5h 38m
Frontier
Deal found 4/28![Frontier logo]()
$116
This Frontier deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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.
Wed 7/221:45 pm
MCI
- STL
1 stop5h 38m
Frontier
Deal found 4/27![Frontier logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 5/262:34 pm
MCI
- STL
1 stop28h 49m
Frontier
Deal found 4/27![Frontier logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/231:45 pm
MCI
- STL
2 stops28h 33m
Frontier
Deal found 4/24![Frontier logo]()
$141
Find flight deals from Missouri to St. Louis
Keep the following information in mind while searching for Missouri to St. Louis flight deals. Data was last updated April 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $190 (Kiwi.com) |
One-way from | $100 (Kiwi.com) |
Popular in | February |
Cheapest in | November |
Average price | $636 |
Good round-trip deal | $377 or less |
Good one-way deal | $177 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Missouri 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 April 29, 2026.
Use the filters below to find and compare flights from Missouri 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
Tue 7/21
8:30 am-9:35 am
Nonstop1h 05m
Lambert-St Louis
Wed 7/22
8:35 am-9:40 am
Nonstop1h 05m
$351
Kansas CitySt. Louis
MCI - STL
MCISTL
Kansas City
Tue 9/1
8:20 am-9:25 am
Nonstop1h 05m
Lambert-St Louis
Thu 9/3
8:30 am-9:35 am
Nonstop1h 05m
$364
Kansas CitySt. Louis
MCI - STL
MCISTL
Kansas City
Sun 5/17
10:35 am-8:55 am
2 stops22h 20m
Lambert-St Louis
Sat 5/23
8:08 pm-1:49 pm
1 stop17h 41m
$394
Kansas CitySt. Louis
MCI - STL
MCISTL
Kansas City
Sat 6/6
3:16 pm-9:16 pm
1 stop6h 00m
Lambert-St Louis
Tue 6/9
1:13 pm-5:36 pm
1 stop4h 23m
$408
Kansas CitySt. Louis
MCI - STL
MCISTL
Kansas City
Fri 6/5
6:05 pm-7:10 pm
Nonstop1h 05m
Lambert-St Louis
Sun 6/7
8:20 pm-12:10 am
1 stop3h 50m
$411
Kansas CitySt. Louis
MCI - STL
MCISTL
Kansas City
Fri 5/22
3:30 pm-8:50 pm
1 stop5h 20m
Lambert-St Louis
Fri 5/29
8:25 am-12:50 pm
1 stop4h 25m
$411
Kansas CitySt. Louis
MCI - STL
MCISTL
Kansas City
Fri 7/31
4:55 pm-9:55 pm
1 stop5h 00m
Lambert-St Louis
Sun 8/2
9:45 pm-10:50 pm
Nonstop1h 05m
$411
Kansas CitySt. Louis
MCI - STL
MCISTL
Kansas City
Sun 5/17
8:25 am-9:30 am
Nonstop1h 05m
Lambert-St Louis
Sat 5/23
10:35 am-11:45 am
Nonstop1h 10m
$429
Fort Leonard WoodSt. Louis
TBN - STL
TBNSTL
Fort Leonard Wood Waynesville Regional
Wed 5/13
2:30 pm-4:54 pm
2 stops26h 24m
Lambert-St Louis
Sun 5/17
3:33 pm-11:45 am
1 stop20h 12m
$462
Fort Leonard WoodSt. Louis
TBN - STL
TBNSTL
Fort Leonard Wood Waynesville Regional
Sun 5/10
2:30 pm-12:21 am
2 stops33h 51m
Lambert-St Louis
Thu 5/14
3:33 pm-11:45 am
1 stop20h 12m
$464
Showing 1-10 of 24 resultsSorted by cheapest first
Best time to book a flight from Missouri to St. Louis
Have a flexible travel schedule? Discover the best time to fly to St. Louis from Missouri with our price prediction graph.
MCI-STL
COU-STL
TBN-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 Missouri to St. Louis
USMO-STL
MCI-STL
COU-STL
TBN-STL
What is the cheapest month to book a flight from Missouri to St. Louis?
Currently, May is the cheapest month in which you can book a flight from Missouri to St. Louis (average of $97). Flying from Missouri to St. Louis in August is currently the most expensive (average of $583). 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.
What is the cheapest time of day to fly from MO to STL?
Find hourly flight availability from Missouri to St. Louis. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 29, 2026.
When flying from Missouri to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Reviews of airlines servicing St. Louis
Get insights into the airlines that provide service to St. Louis. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to St. Louis. Reviews last updated April 29, 2026.
Get a feel of what it's like to fly with Southwest from Missouri to St. Louis by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Related info for your journey
Find useful and relevant information for your journey from Missouri 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.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
St. Louis flight routes
Top destinations
Alternative routes for Missouri to St. Louis
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to St. Louis by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Missouri to St. Louis by cabin class
Find flights from Missouri to St. Louis, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Missouri and St. Louis flights
Browse other Missouri and St. Louis flight options. Last updated on April 29, 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 April 29, 2026.
Missouri to St. Louis flights
Consider these flights traveling from Missouri to St. Louis.
Top airline flying from Missouri to St. Louis
Discover the top airline that operate flights from Missouri 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 April 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$137 | Average$522 | FlexibilityNo cancel fee | On-time63% |