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$49+ 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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MCI
Mar 30 — Apr 61
Sun 3/30
Sun 4/6
1 adult, Economy
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Cheap 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 March 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$97
(Southwest)

One-way from

$49
(Southwest)

Popular in

January

Cheapest in

April

Average price

$139
Provider with most accurate pricing for Lambert-St Louis-Kansas City flight deals.
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Provider most trusted by Cheapflights users for Lambert-St Louis-Kansas City flights.
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From Lambert-St Louis to Kansas City
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One-way flight from Lambert-St Louis to Kansas City
Search Deals
Highest demand for flights based on searches. 27% potential increase in price ($141 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from St. Louis to Kansas City

Cheapest flights from St. Louis to Kansas City
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 March 25, 2025.

This Southwest deal was found by Cheapflights users on 3/24. 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 4/228:55 pmSTL - MCI
Nonstop1h 05mSouthwest
Tue 4/294:50 pmMCI - STL
Nonstop1h 00mSouthwest
Deal found 3/24$97
This Booking.com deal was found by Cheapflights users on 3/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/26:51 pmSTL - MCI
1 stop16h 27mFrontier
Fri 4/48:35 pmMCI - STL
1 stop12h 31mFrontier
Deal found 3/24$190
This American Airlines deal was found by Cheapflights users on 3/24. 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.
Mon 4/215:45 amSTL - MCI
1 stop10h 52mAmerican Airlines
Mon 4/285:42 amMCI - STL
1 stop3h 55mAmerican Airlines
Deal found 3/24$333
This Mytrip deal was found by Cheapflights users on 3/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/109:50 amSTL - MCI
3 stops29h 36mMultiple Airlines
Mon 4/144:59 pmMCI - STL
1 stop24h 16mMultiple Airlines
Deal found 3/24$339
This Mytrip deal was found by Cheapflights users on 3/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/106:10 pmSTL - MCI
2 stops21h 16mSpirit Airlines
Mon 4/144:59 pmMCI - STL
1 stop24h 16mSpirit Airlines
Deal found 3/24$355
This Delta deal was found by Cheapflights users on 3/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/236:08 amSTL - MCI
1 stop14h 33mDelta
Mon 4/285:40 pmMCI - STL
1 stop14h 35mDelta
Deal found 3/24$403
This United Airlines deal was found by Cheapflights users on 3/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/226:30 amSTL - MCI
1 stop15h 30mUnited Airlines
Sat 4/266:00 amMCI - STL
1 stop15h 50mUnited Airlines
Deal found 3/24$444
This Alaska Airlines deal was found by Cheapflights users on 3/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/156:44 amSTL - MCI
1 stop17h 15mAlaska Airlines
Wed 4/162:55 pmMCI - STL
1 stop9h 04mAlaska Airlines
Deal found 3/24$462

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 March 25, 2025.
Use the filters below to find and compare flights from St. Louis to Kansas City that are best for you.

Fly from

St. Louis

Fly to

Kansas City

Route

Depart

Return

Price

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Tue 4/22

8:55 pm-10:00 pm

Nonstop1h 05m

Kansas City

Tue 4/29

4:50 pm-5:50 pm

Nonstop1h 00m

$97

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Wed 4/2

6:51 pm-11:18 am

1 stop16h 27m

Kansas City

Fri 4/4

8:35 pm-9:06 am

1 stop12h 31m

$190

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Mon 4/21

5:45 am-4:37 pm

1 stop10h 52m

Kansas City

Mon 4/28

5:42 am-9:37 am

1 stop3h 55m

$333

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Thu 4/10

9:50 am-3:26 pm

3 stops29h 36m

Kansas City

Mon 4/14

4:59 pm-5:15 pm

1 stop24h 16m

$339

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Thu 4/10

6:10 pm-3:26 pm

2 stops21h 16m

Kansas City

Mon 4/14

4:59 pm-5:15 pm

1 stop24h 16m

$355

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Wed 4/23

6:08 am-8:41 pm

1 stop14h 33m

Kansas City

Tue 4/29

12:41 pm-8:15 am

1 stop19h 34m

$403

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Tue 4/22

6:30 am-10:00 pm

1 stop15h 30m

Kansas City

Sat 4/26

6:00 am-9:50 pm

1 stop15h 50m

$444

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Tue 4/15

6:44 am-11:59 pm

1 stop17h 15m

Kansas City

Wed 4/16

2:55 pm-11:59 pm

1 stop9h 04m

$462

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Thu 4/24

1:55 pm-3:00 pm

Nonstop1h 05m

$49

St. LouisKansas City

STL - MCI

STLMCI

Lambert-St Louis

Sun 5/11

10:10 am-10:31 am

1 stop24h 21m

$108

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 16 results
1
2

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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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

What is the cheapest month to book a flight from St. Louis to Kansas City?

Currently, January is the cheapest month in which you can book a flight from St. Louis to Kansas City (average of $298). Flying from St. Louis to Kansas City in June is currently the most expensive (average of $352). 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 STL to MCI?

Find hourly flight availability from St. Louis to Kansas City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 25, 2025.

It’s optimal to fly from St. Louis to Kansas City in the evening. By choosing this option you can save up to 25% on the cost of your flight, compared to a flight in the morning.

Rainfall in Kansas City by month

Plan your trip to Kansas City by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Kansas City ranges from 1.1 - 5.2 inches per month. May is typically the wettest month, when rainfall can reach 5.2 in. January is typically the driest time to visit Kansas City when rainfall is around 1.1 in.

Temperature in Kansas City by month

Plan your trip to Kansas City by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Kansas City, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 28.4 F).

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 March 25, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest and Delta from St. Louis to Kansas City 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.
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,782 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very good
4,272 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,890 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,605 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,782 reviews

Entertainment

7.1

Overall

8.0

Crew

8.5

Food

7.1

Boarding

8.2

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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.

  • What airports do I use to fly from St. Louis to Kansas City?

    To fly from St. Louis to Kansas City, you need to book a flight from Lambert-St Louis (STL) to Kansas City (MCI). Nonstop flights to Kansas City from Lambert-St Louis take 1h 05m on average. When it comes time to book airfare, you have a few options: there are 2 outbound flights from Lambert-St Louis to Kansas City offered by 2 different airlines.

  • How popular is this St. Louis to Kansas City flight route?

    Flights from Lambert-St Louis to Kansas City have been viewed 3 times in the past calendar month.

  • What are the cheapest airlines flying from St. Louis to Kansas City round-trip?

    Southwest, at $97, was found to be the cheapest airline from St. Louis to Kansas City.Alternate airlines to your destination round-trip include Frontier and American Airlines. Southwest is 74% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from St. Louis to Kansas City one-way?

    One-way options have recently been found by users for as low as $49 on Southwest. Other airlines that offer cheap prices include Spirit Airlines from $108 and Frontier from $111 one-way.

  • What are the cheapest flights from St. Louis to Kansas City?

    Looking for the cheapest flight from St. Louis to Kansas City? While on average our users pay $319, our data indicates the cheapest price to be $88. The most popular route (Lambert-St Louis - Kansas City), is priced around $97.

  • Can I find deals for flights from St. Louis to Kansas City that include hotel bookings?

    Yes. In addition to deals on St. Louis to Kansas City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from St. Louis to Kansas City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Kansas City.

  • Can I find deals for business class flights from St. Louis to Kansas City?

    Yes. Cheapflights offers flight deals from St. Louis to Kansas City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from St. Louis to Kansas City?

    Currently, January is the cheapest month in which you can book a flight from St. Louis to Kansas City (average of $298). Flying from St. Louis to Kansas City in June is currently the most expensive (average of $352). 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.

See more FAQs

Traveling to a place near St. Louis?

Book flights to St. Louis if you plan to visit one of these locations
Shawnee
Olathe
Overland Park
Liberty
Lenexa
Kansas City
North Kansas City
Lawrence
Belton

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from St. Louis to Kansas City

Discover the top 2 airlines 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 March 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$132Average$331FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$286Average$368FlexibilityNo cancel feeOn-time71%
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