STL - MCI

$76 Find Cheap Flights from St. Louis to Kansas City

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Kansas City departing on 6/30. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Kansas City

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Kansas City, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from St. Louis to Kansas City, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$169
Typical prices: $417-$336
Frontier
Sun 7/5Sat 7/11
STL - MCI • 1 stop
Cheapest non-stop
$270
Typical prices: $695-$411
Southwest
Tue 8/18Thu 8/20
STL - MCI • Non-stop
Top airlines
Cheapest • from $169 (round-trip)
Best reviews • 7.9 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Nonstop flights
Every day
You can fly direct with Southwest. Average duration is 1h 05m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Kansas City!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from St. Louis to Kansas City (STL-MCI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis to Kansas City that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from St. Louis to Kansas City

Sun, Jul 5 - Sat, Jul 11
Frontier Logo
6:34 pm - 5:10 pm
STL
-
MCI
22h 36m
1 stop
Frontier Logo
6:07 pm - 5:37 pm
MCI
-
STL
23h 30m
1 stop
$169Frontier
Sun, Jul 5 - Sat, Jul 11
Frontier Logo
6:34 pm - 5:10 pm
STL
-
MCI
22h 36m
1 stop
Frontier Logo
6:07 pm - 5:37 pm
MCI
-
STL
23h 30m
1 stop
$191Frontier
Sun, Jul 5 - Sat, Jul 11
Frontier Logo
6:34 pm - 5:10 pm
STL
-
MCI
22h 36m
1 stop
Frontier Logo
6:07 pm - 5:37 pm
MCI
-
STL
23h 30m
1 stop
$213Frontier
Tue, Aug 18 - Thu, Aug 20
Frontier Logo
6:33 pm - 5:24 pm
STL
-
MCI
22h 51m
1 stop
Frontier Logo
1:45 pm - 7:23 pm
MCI
-
STL
5h 38m
1 stop
$224Frontier
Tue, Jul 7 - Tue, Jul 14
Frontier Logo
6:34 pm - 5:10 pm
STL
-
MCI
22h 36m
1 stop
Frontier Logo
1:45 pm - 7:23 pm
MCI
-
STL
5h 38m
1 stop
$228Frontier
Mon, Sep 7 - Fri, Sep 11
Frontier Logo
8:08 pm - 1:00 pm
STL
-
MCI
16h 52m
1 stop
Frontier Logo
6:11 pm - 9:40 am
MCI
-
STL
15h 29m
1 stop
$243Frontier
Sat, Jul 4 - Sat, Jul 11
Frontier Logo
2:56 pm - 3:47 pm
STL
-
MCI
24h 51m
1 stop
Frontier Logo
1:45 pm - 7:23 pm
MCI
-
STL
5h 38m
1 stop
$270Frontier
Tue, Aug 18 - Thu, Aug 20
Southwest Logo
8:25 am - 9:30 am
STL
-
MCI
1h 05mnonstop
Southwest Logo
4:55 pm - 9:55 pm
MCI
-
STL
5h 00m
1 stop
$272Southwest
Mon, Jul 6 - Mon, Jul 13
Frontier Logo
8:08 pm - 1:00 pm
STL
-
MCI
16h 52m
1 stop
Frontier Logo
4:32 pm - 6:05 pm
MCI
-
STL
25h 33m
1 stop
$280Frontier
Fri, Jul 3 - Mon, Jul 6
Frontier Logo
7:38 pm - 1:00 pm
STL
-
MCI
17h 22m
1 stop
Frontier Logo
4:32 pm - 6:05 pm
MCI
-
STL
25h 33m
1 stop
$281Frontier
Booking Insights

KAYAK's insights & trends for St. Louis to Kansas City flights

Get data-powered insights and trends into flights from St. Louis to Kansas City to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from St. Louis to Kansas City?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from St. Louis to Kansas City departing in July.

What’s the cheapest day of the week to fly from St. Louis to Kansas City?

The average price of all round-trip flights from St. Louis to Kansas City clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Kansas City on a Tuesday and more expensive on a Monday. On your return trip to St. Louis, you should consider flying back on a Thursday, and avoid Sundays for better deals.

What is the cheapest month to fly from St. Louis to Kansas City?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from St. Louis to Kansas City, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from St. Louis to Kansas City is December, where tickets cost $0 (return) on average. On the other hand, the most expensive months are May and February, where the average cost of round-trip tickets is $591 and $531 respectively.

Can I save money by flying with a layover from St. Louis to Kansas City?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $181 on average.

Expert advice

Expert advice for your flight from St. Louis to Kansas City

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
John Walton

John Walton

Expert on MCI

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Yulia Denisyuk

Yulia Denisyuk

Expert on STL

Yulia is a freelance journalist who’s dispatched from 90+ countries. Her work focuses on cultures, adventure trips and air travel, appearing in NatGeo, NYT, CNTraveler, and more. For past assignments, she’s stayed with nomads in Mongolia and learned the art of Imigongo in Rwanda. She’s based in Chicago; in winter she often questions that decision.

Good to know

Cheapest flight$76
Most popular time to fly with an average 35% increase in price.
Flight from St. Louis to Kansas City

When to book flights from St. Louis to Kansas City

Are your dates flexible? Find out the best times to travel from St. Louis to Kansas City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from St. Louis to Kansas City

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

    In the last 5 days, the lowest price for a flight from St. Louis to Kansas City was $76 for a one-way ticket and $169 for a round-trip.

  • Do I need a passport to fly between St. Louis and Kansas City?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from St. Louis to Kansas City?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Kansas City, also known as Kansas City.

  • Which airlines offer Wi-Fi service onboard planes from St. Louis to Kansas City?

    American Airlines, Alaska Airlines, and Delta offer inflight Wi-Fi service on the St. Louis to Kansas City flight route.

  • Which aircraft models fly most regularly from St. Louis to Kansas City?

    The Boeing 737 MAX 8 is the aircraft model that flies most regularly on the St. Louis to Kansas City flight route.

  • On which days can I fly direct from St. Louis to Kansas City?

    There are nonstop flights from St. Louis to Kansas City on a daily basis.

  • How does KAYAK find such low prices on flights from St. Louis to Kansas City?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from St. Louis to Kansas City.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from St. Louis to Kansas City?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kansas City from St. Louis is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from St. Louis to Kansas City?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Kansas City with an airline and back to St. Louis with another airline. Booking your flights between St. Louis and MCI can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from St. Louis to Kansas City?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Kansas City from St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from St. Louis to Kansas City

  • Looking for a cheap flight? 25% of our users found flights on this route for $240 or less one-way and $391 or less round-trip.

Prefer to fly direct from St. Louis to Kansas City?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Lambert-St Louis to Kansas City.
Find which airlines fly direct from Lambert-St Louis Airport to Kansas City Airport, which days they fly and book direct flights.

Direct departures

Lambert-St Louis to Kansas City

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Direct returns

Kansas City to Lambert-St Louis

Monday

Southwest

Southwest

Tuesday

Southwest

Southwest

Wednesday

Southwest

Southwest

Thursday

Southwest

Southwest

Friday

Southwest

Southwest

Saturday

Southwest

Southwest

Sunday

Southwest

Southwest

See more direct flights

Reviews of the top airline flying from St. Louis to Kansas City

 
See real verified KAYAK customer reviews for airlines flying from St. Louis to Kansas City. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from St. Louis to Kansas City? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
SouthwestOverall score based on 4235 reviews
8.1Boarding
8.0Comfort
8.6Crew
7.5Entertainment
7.0Food
Airline reviews

there were two flight attendants that were up front...that were the best! They get KUDOs for making my trip only fantastic. Tell them Jeff said that!

10.0 ExcellentAnonymous, Jun 2026
OKC - LAS
Read more Southwest reviews

there were two flight attendants that were up front...that were the best! They get KUDOs for making my trip only fantastic. Tell them Jeff said that!

OKay. I sat in the back of the plane and it was really loud between babies and little kids, and adults who.like to talk a lot and loudly most of the flight.

Flight coming out of Buffalo was delayed, so we had to be rescheduled on another flight from Baltimore to Phoenix which means we had a long layover and got home 3.5 hours late. Shuttle to parking stopped at 10pm, so we had to pay for an Uber to the parking lot and got charged an extra day of parking since it was after midnight. Not the best experience. Long day!

Was fine, delayed and feels like southwest is always late

I don't know why flying out of Sarasota requires two plane changes.

The first time I flew in the extra legroom section. It was difficult to notice a difference. I had bad luck with my neighbors. The crew was okay. Southwest has reduced the live TV options.

The flight was smooth. The Southwest experience has degraded overall, but this one was okay.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

One major problem that was very unprofessional and uncalled for. Plane landed and we had to wait 20 minutes to get off the plane since they were waiting for someone to come to the gate to drive the jetway. Southwest couldn't have someone available and waiting for the plane to land? Is there only one person in Hobby airport who knows to drive the jetway? Was he at lunch? In the bar? Uncomfortable and uncalled for!

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

Everything you need to know for your flight from St. Louis to Kansas City

Information on your arrival and departure airports