$60+ Cheap flights from St. Louis to Kansas City (STL - MCI)
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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MCI
Aug 29 — Sep 51
Round-trip
1 adult, Economy
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Find cheap flights from St. Louis to Kansas City 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 St. Louis to Kansas City
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Best
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One-way
Cheapest flights from St. Louis to Kansas CityExplore the most affordable flight options available from St. Louis to Kansas City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2026.
Explore the most affordable flight options available from St. Louis to Kansas City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Thu 8/206:17 pm
STL
- MCI
1 stop16h 24m
Frontier
Mon 8/2411:26 am
MCI
- STL
1 stop5h 56m
Frontier
Deal found 7/27![Frontier logo]()
$119
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/247:58 pm
STL
- MCI
2 stops38h 43m
Frontier
Mon 8/3111:26 am
MCI
- STL
1 stop5h 56m
Frontier
Deal found 7/27![Frontier logo]()
$206
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/208:30 am
STL
- MCI
Nonstop1h 05m
Southwest
Mon 8/245:00 pm
MCI
- STL
Nonstop1h 05m
Southwest
Deal found 7/29![Southwest logo]()
$237
This Frontier deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 9/2412:27 pm
STL
- MCI
1 stop9h 18m
Frontier
Mon 9/2810:30 pm
MCI
- STL
1 stop13h 02m
Frontier
Deal found 7/29![Frontier logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 9/258:10 pm
STL
- MCI
1 stop23h 27m
Frontier
Tue 9/298:32 pm
MCI
- STL
1 stop22h 45m
Frontier
Deal found 7/27![Frontier logo]()
$251
Best flights from St. Louis to Kansas CityDiscover carefully curated flight deals from St. Louis to Kansas City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 30, 2026.
Discover carefully curated flight deals from St. Louis to Kansas City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/206:17 pm
STL
- MCI
1 stop16h 24m
Frontier
Mon 8/241:38 pm
MCI
- STL
2 stops26h 53m
Frontier
Deal found 7/29![Frontier logo]()
$211
This Southwest deal was found by Cheapflights users on 7/27. 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.
Thu 8/202:20 pm
STL
- MCI
Nonstop1h 05m
Southwest
Mon 8/2412:15 pm
MCI
- STL
Nonstop1h 00m
Southwest
Deal found 7/27![Southwest logo]()
$237
This Southwest deal was found by Cheapflights users on 7/25. 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.
Tue 9/82:50 pm
STL
- MCI
Nonstop1h 05m
Southwest
Tue 9/1511:55 am
MCI
- STL
Nonstop1h 00m
Southwest
Deal found 7/25![Southwest logo]()
$237
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/252:50 pm
STL
- MCI
Nonstop1h 05m
Southwest
Thu 8/278:25 am
MCI
- STL
Nonstop1h 05m
Southwest
Deal found 7/29![Southwest logo]()
$237
This Southwest deal was found by Cheapflights users on 7/28. 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.
Thu 9/244:55 pm
STL
- MCI
1 stop5h 55m
Southwest
Mon 9/285:00 pm
MCI
- STL
Nonstop1h 05m
Southwest
Deal found 7/28![Southwest logo]()
$247
Last-minute flights from St. Louis to Kansas CityDiscover last-minute flight deals from St. Louis to Kansas City. Data last updated July 30, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Kansas City. Data last updated July 30, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 7/27. 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.
Thu 8/206:17 pm
STL
- MCI
1 stop16h 24m
Frontier
Mon 8/2411:26 am
MCI
- STL
1 stop5h 56m
Frontier
Deal found 7/27![Frontier logo]()
$119
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 8/208:30 am
STL
- MCI
Nonstop1h 05m
Southwest
Mon 8/245:00 pm
MCI
- STL
Nonstop1h 05m
Southwest
Deal found 7/29![Southwest logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:17 pm
STL
- MCI
1 stop16h 24m
Frontier
Sun 8/304:47 pm
MCI
- STL
2 stops26h 26m
Frontier
Deal found 7/26![Frontier logo]()
$256
This Kiwi.com deal was found by Cheapflights users on 7/27. 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 8/247:58 pm
STL
- MCI
2 stops38h 43m
Frontier
Mon 8/3111:26 am
MCI
- STL
1 stop5h 56m
Frontier
Deal found 7/27![Frontier logo]()
$206
This Southwest deal was found by Cheapflights users on 7/28. 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 8/257:05 am
STL
- MCI
1 stop5h 40m
Southwest
Tue 9/16:25 am
MCI
- STL
1 stop4h 30m
Southwest
Deal found 7/28![Southwest logo]()
$257
One-way flights from St. Louis to Kansas CitySearch for one-way flight options from St. Louis to Kansas City. Find affordable one-way fares based on user searches. Data last updated July 30, 2026.
Search for one-way flight options from St. Louis to Kansas City. Find affordable one-way fares based on user searches. Data last updated July 30, 2026.
This Trip.com deal was found by Cheapflights users on 7/28. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:17 pm
STL
- MCI
1 stop16h 24m
Frontier
Deal found 7/28![Frontier logo]()
$60
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:17 pm
STL
- MCI
1 stop21h 48m
Frontier
Deal found 7/26![Frontier logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 8/236:17 pm
STL
- MCI
1 stop16h 24m
Frontier
Deal found 7/25![Frontier logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 9/308:10 pm
STL
- MCI
1 stop23h 27m
Frontier
Deal found 7/29![Frontier logo]()
$82
This Trip.com deal was found by Cheapflights users on 7/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:34 pm
STL
- MCI
1 stop22h 36m
Frontier
Deal found 7/25![Frontier logo]()
$83
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 10/268:10 pm
STL
- MCI
1 stop17h 12m
Frontier
Deal found 7/29![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” 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 9/288:10 pm
STL
- MCI
1 stop23h 27m
Frontier
Deal found 7/29![Frontier logo]()
$85
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 8/216:17 pm
STL
- MCI
1 stop21h 48m
Frontier
Deal found 7/25![Frontier logo]()
$88
Find flight deals from St. Louis to Kansas City
Discover tips and strategies to find the most affordable flight options for your journey from St. Louis (STL) to Kansas City (MCI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $119 (Kiwi.com) |
One-way from | $60 (Trip.com) |
Popular in | August |
Cheapest in | November |
Average price | $411 |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Kansas City 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 July 30, 2026.
Use the filters below to find and compare flights from St. Louis to Kansas City that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisKansas City
STL - MCI
STLMCI
Lambert-St Louis
Thu 8/20
6:17 pm-10:41 am
1 stop16h 24m
Kansas City
Mon 8/24
1:38 pm-4:31 pm
2 stops26h 53m
$211
Quickest round-trip
St. LouisKansas City
STL - MCI
STLMCI
Lambert-St Louis
Thu 8/20
2:20 pm-3:25 pm
Nonstop1h 05m
Kansas City
Mon 8/24
12:15 pm-1:15 pm
Nonstop1h 00m
$237
St. LouisKansas City
STL - MCI
STLMCI
Lambert-St Louis
Tue 9/8
2:50 pm-3:55 pm
Nonstop1h 05m
Kansas City
Tue 9/15
11:55 am-12:55 pm
Nonstop1h 00m
$237
St. LouisKansas City
STL - MCI
STLMCI
Lambert-St Louis
Tue 8/25
2:50 pm-3:55 pm
Nonstop1h 05m
Kansas City
Thu 8/27
8:25 am-9:30 am
Nonstop1h 05m
$237
St. LouisKansas City
STL - MCI
STLMCI
Lambert-St Louis
Thu 9/24
4:55 pm-10:50 pm
1 stop5h 55m
Kansas City
Mon 9/28
5:00 pm-6:05 pm
Nonstop1h 05m
$247
Cheapest one-way
Quickest one-way
St. LouisKansas City
STL - MCI
STLMCI
Lambert-St Louis
Mon 10/26
3:05 pm-4:10 pm
Nonstop1h 05m
$119
St. LouisKansas City
STL - MCI
STLMCI
Lambert-St Louis
Tue 10/6
8:00 am-2:18 pm
1 stop6h 18m
$129
St. LouisKansas City
STL - MCI
STLMCI
Lambert-St Louis
Mon 8/24
2:20 pm-6:25 pm
1 stop4h 05m
$129
St. LouisKansas City
STL - MCI
STLMCI
Lambert-St Louis
Sat 9/26
2:05 pm-6:30 pm
1 stop4h 25m
$129
St. LouisKansas City
STL - MCI
STLMCI
Lambert-St Louis
Mon 1/25
6:05 am-9:50 am
1 stop3h 45m
$129
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from St. Louis to Kansas City
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from St. Louis to Kansas City in July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on St. Louis-Kansas City flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on St. Louis-Kansas City flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from St. Louis-Kansas City flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on St. Louis-Kansas City flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for St. Louis-Kansas City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from St. Louis to Kansas City
Have a flexible travel schedule? Discover the best time to fly to Kansas City from St. Louis with our price prediction graph.
STL-MCI
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 St. Louis to Kansas City
The best insider tips for St. Louis to Kansas City flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your St. Louis to Kansas City trip
Our travel experts
Reviews of airlines servicing Kansas City
Get insights into the airlines that provide service to Kansas City. 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 Kansas City. Reviews last updated July 30, 2026.
Read through reviews of airlines operating flights from St. Louis to Kansas City, such as Southwest. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2025
MCO - STL
Food
7.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreAnonymous,Feb 2025
MCO - STL
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Kansas City. 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 Kansas City?
Book flights to Kansas City if you plan to visit one of these locationsLee's Summit
Kansas City
Independence
Overland Park
Warrensburg
Lenexa
North Kansas City
Lansing
Liberty
Lawrence
Shawnee
Olathe
Belton
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St. Louis and Kansas City flights
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Browse through other flights departing from St. Louis. Flights are based on user searches made on Cheapflights and were last updated on July 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from St. Louis to Kansas City
Discover the top airline that operate flights from St. Louis to Kansas City. 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 July 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$137 | Average$513 | FlexibilityNo cancel fee | On-time63% |