CA $226 Cheap Flights from St. Louis (STL) to Kansas City (MCI)

View CA $226 flight on Fri, Sep. 5, 2025Opens in a new window

Popular airlines from Lambert-St. Louis International Airport (STL) to Kansas City International Airport (MCI)

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

Prices were available within the past 7 days and start at CA $226 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from St. Louis (STL) to Kansas City (MCI)

May is typically the cheapest month to fly

From CA $133 - CA $951 per traveller.

Graph displaying average flight prices per month

Flight from St. Louis to Kansas City (STL - MCI) route information
Origin airport
Lambert-St. Louis Intl.
Destination airport
Kansas City Intl.
Distance
378 km
Average flight time
1 hour 5 mins

St. Louis to Kansas City Flights

The easy way to book your flights from St. Louis to Kansas City 

With Expedia, it’s simple to find and book flights to Kansas City from St. Louis whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Kansas City Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from St. Louis to Kansas City today, tomorrow, or this week.  

 

Save dollars with cheap flights from Lambert-St. Louis Intl., STL to Kansas City Intl., MCI 

Sort your search results by price to find great deals on your flight from St. Louis to Kansas City—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Kansas City from St. Louis currently is just rising to .  

Here are more money-saving tips: 

  • Fly in when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Kansas City  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Kansas City from St. Louis 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Kansas City with Expedia today.

Frequently asked questions

How much is a flight from STL to Kansas City Intl. Airport (MCI)?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip flight from Lambert Field to Kansas City Intl. Airport was . Great fares don't wait forever, so book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Lambert-St. Louis Intl. Airport (STL) to MCI?
Every air carrier has its own set of terms and conditions. If you do decide to cancel, follow the instructions on our Customer Service Portal.
How do I find cheap flights from STL to Kansas City Intl. Airport (MCI) that have flexible change policies?
Plenty of carriers will allow you to move your flight without charging a fee. All you pay is the cost difference between flights. When looking for Lambert-St. Louis Intl. Airport (STL) to MCI flights, you'll see a "No change fees" filter for you to tick.
How many hours is the flight from Lambert-St. Louis Intl. Airport (STL) to Kansas City Intl. Airport (MCI)?
It only takes approximately 5 hours and 17 minutes to journey from STL to MCI. Buckle up and get comfortable — but not too comfortable. You'll be touching down in Kansas City soon enough.
How far is the flight from STL to Kansas City Intl. Airport?
That new movie you've been wanting to see will have to wait — the flight distance between Lambert Field and MCI is only 380 kilometres. The captain will be instructing you to put your seat upright for landing before you know it.
Which airlines fly direct from Lambert Field to MCI?
If you're eager to fly directly from STL to Kansas City Intl. Airport (MCI), Southwest Airlines (WN) is a popular choice. It operates 73 flights each month between St. Louis and Kansas City.
Are STL to Kansas City Intl. Airport flight tickets cheaper when they're purchased at the last minute?
Flight prices are constantly going up and down, so it's no sure thing. While last-minute flight deals between STL and Kansas City Intl. Airport (MCI) are of course possible, it also makes sense to monitor prices well before you fly. In fact, some airlines announce their prices up to 12 months prior to the departure date. Expedia is continuously updating the biggest airfare bargains around, so keep checking back and be ready to lock in your seat when the price is right.

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