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$95+ Cheap flights from Kansas City to St. Louis (MCI - 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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — STL
Dec 23 — Dec 301
Mon 12/23
Mon 12/30
1 adult, Economy
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Cheap flight deals from Kansas City to St. Louis

Discover tips and strategies to find the most affordable flight options for your journey from Kansas City (MCI) to St. Louis (STL). 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 December 18, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$312
(Southwest)

One-way from

$95
(CheapOair)

Popular in

February

Cheapest in

January

Average price

$367
Provider with most accurate pricing for Kansas City-Lambert-St Louis flight deals.
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Provider most trusted by Cheapflights users for Kansas City-Lambert-St Louis flights.
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From Kansas City to Lambert-St Louis
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One-way flight from Kansas City to Lambert-St Louis
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High demand for flights, 11% potential price rise
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Best time to find cheap flights, 4% potential price drop
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Average for round-trip flights in December 2024
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Find flight deals from Kansas City to St. Louis

Cheapest flights from Kansas City to St. Louis
Explore the most affordable flight options available from Kansas City to St. Louis. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2024.

This American Airlines deal was found by Cheapflights users on 12/17. 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 12/311:35 pmMCI - STL
1 stop7h 05mAmerican Airlines
Fri 1/36:00 pmSTL - MCI
1 stop4h 53mAmerican Airlines
Deal found 12/17$408
This Booking.com deal was found by Cheapflights users on 12/17. 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.
Sun 12/298:28 pmMCI - STL
1 stop11h 45mFrontier
Thu 1/210:09 pmSTL - MCI
1 stop15h 44mFrontier
Deal found 12/17$413
This Southwest deal was found by Cheapflights users on 12/17. 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 12/306:05 pmMCI - STL
1 stop5h 45mSouthwest
Thu 1/26:00 amSTL - MCI
1 stop4h 50mSouthwest
Deal found 12/17$490
This United deal was found by Cheapflights users on 12/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/318:00 amMCI - STL
1 stop7h 47mUnited Airlines
Fri 1/38:00 amSTL - MCI
2 stops12h 28mUnited Airlines
Deal found 12/17$636
This Mytrip deal was found by Cheapflights users on 12/17. 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.
Fri 12/207:11 pmMCI - STL
2 stops21h 51mMultiple Airlines
Sun 12/2212:15 pmSTL - MCI
3 stops25h 03mMultiple Airlines
Deal found 12/17$1,621

Find flights from Kansas City to St. Louis within your budget

Customize your flight search to find flights from Kansas City 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 December 18, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Wed 1/15

6:25 pm-7:30 pm

Nonstop1h 05m

Lambert-St Louis

Thu 1/16

9:15 pm-10:30 pm

Nonstop1h 15m

$312

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Wed 1/15

7:00 am-4:20 pm

1 stop9h 20m

Lambert-St Louis

Thu 1/16

1:40 pm-6:28 pm

1 stop4h 48m

$327

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Sun 12/29

8:28 pm-8:13 am

1 stop11h 45m

Lambert-St Louis

Thu 1/2

10:09 pm-1:53 pm

1 stop15h 44m

$413

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Tue 1/14

8:00 am-3:38 pm

1 stop7h 38m

Lambert-St Louis

Mon 1/20

5:30 pm-5:38 pm

1 stop24h 08m

$458

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Fri 1/17

6:39 pm-9:16 am

1 stop14h 37m

$95

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Wed 1/8

6:25 pm-7:30 pm

Nonstop1h 05m

$156

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Wed 2/19

7:00 am-11:59 pm

1 stop16h 59m

$217

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Wed 2/19

6:00 am-4:33 pm

1 stop10h 33m

$222

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Fri 1/17

10:48 am-9:36 am

1 stop22h 48m

$249

Kansas CitySt. Louis

MCI - STL

MCISTL

Kansas City

Tue 12/24

5:32 am-9:36 am

1 stop28h 04m

$253

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Compare providers for flights from Kansas City to St. Louis

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 Kansas City to St. Louis in December.
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 Kansas City-St. Louis flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kansas City-St. Louis flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kansas City-St. Louis flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Kansas City-St. Louis 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 Kansas City-St. Louis 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 Kansas City to St. Louis

Have a flexible travel schedule? Discover the best time to fly to St. Louis from Kansas City 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.

Travel insights for flights from Kansas City to St. Louis

Get recent, data-driven insights about flights from Kansas City to St. Louis including ideal travel times, pricing trends, and more.

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

Currently, August is the cheapest month in which you can book a flight from Kansas City to St. Louis (average of $311). Flying from Kansas City to St. Louis in March is currently the most expensive (average of $356). 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 MCI to STL?

Find hourly flight availability from Kansas City 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 December 18, 2024.

When flying from Kansas City to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 33% versus a flight at noon.

Rainfall in St. Louis by month

Plan your trip to St. Louis by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in St. Louis ranges from 2.2 - 4.7 inches per month. May is typically the wettest month, when rainfall can reach 4.7 in. February is typically the driest time to visit St. Louis when rainfall is around 2.2 in.

Temperature in St. Louis by month

Plan your trip to St. Louis by taking into account the average temperature totals by month.

If weather is an important factor for your trip to St. Louis, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 December 18, 2024.
See what other customers who have flown with United Airlines, American Airlines and Southwest from Kansas City to St. Louis have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,848 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,552 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,604 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
9,059 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,848 reviews

Crew

8.7

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Food

7.2

Overall

8.1

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Kansas City to St. Louis. 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 Kansas City to St. Louis?

    Lambert-St Louis is the airport most travelers will use when flying to St. Louis from Kansas City. Booking flights from Kansas City (MCI) to Lambert-St Louis (STL) should be relatively easy as there is 1 daily flight to St. Louis from 2 different airlines. 1h 00m is how long a flight from Kansas City to Lambert-St Louis will take if you book a nonstop flight.

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

    Flights from Kansas City to Lambert-St Louis have been viewed 6 times in the past calendar month.

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

    Our cheapest airline available from Kansas City to St. Louis is Southwest. Our recent data shows that you can find tickets from as low as $312 on this airline. Additional options worth looking into are American Airlines and Frontier, starting at $327 and $413 round-trip. You may be able to fly from Kansas City to St. Louis for 18% less than the average price by searching for these airlines.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $95. Southwest flights start at $156 while deals on American Airlines start at $165 one-way.

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

    Looking at all options, your cheapest flight can be booked for $168. While the most popular route (Kansas City - Lambert-St Louis) can be booked for $249 on average our data indicates $341 when flying from Kansas City to St. Louis.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Kansas City to St. Louis 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 Kansas City to St. Louis?

    Currently, August is the cheapest month in which you can book a flight from Kansas City to St. Louis (average of $311). Flying from Kansas City to St. Louis in March is currently the most expensive (average of $356). 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

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Top 2 airlines flying from Kansas City to St. Louis

Discover the top 2 airlines that operate flights from Kansas City 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 December 18, 2024.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$176Average$443FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$247Average$398FlexibilityNo cancel feeOn-time71%
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