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Fly from
Fly to
Route
Depart
Return
Kansas CitySt. Louis
MCI Kansas City - STL Lambert-St Louis
MCISTL
Kansas City
Tue 11/3
8:15 am-9:30 am
Nonstop1h 15m
Lambert-St Louis
Thu 11/5
8:25 am-9:35 am
Nonstop1h 10m
Kansas CitySt. Louis
MCI Kansas City - STL Lambert-St Louis
MCISTL
Kansas City
Mon 11/16
8:15 am-9:30 am
Nonstop1h 15m
Lambert-St Louis
Mon 11/16
8:15 pm-9:30 pm
Nonstop1h 15m
Kansas CitySt. Louis
MCI Kansas City - STL Lambert-St Louis
MCISTL
Kansas City
Fri 11/6
12:40 pm-1:45 pm
Nonstop1h 05m
Lambert-St Louis
Fri 11/13
9:45 pm-11:00 pm
Nonstop1h 15m
Kansas CitySt. Louis
MCI Kansas City - STL Lambert-St Louis
MCISTL
Kansas City
Fri 11/6
12:40 pm-1:45 pm
Nonstop1h 05m
Lambert-St Louis
Thu 11/12
9:45 pm-11:00 pm
Nonstop1h 15m
Kansas CitySt. Louis
MCI Kansas City - STL Lambert-St Louis
MCISTL
Kansas City
Thu 11/5
12:40 pm-1:45 pm
Nonstop1h 05m
Lambert-St Louis
Thu 11/12
8:25 am-9:35 am
Nonstop1h 10m
Kansas CitySt. Louis
MCI Kansas City - STL Lambert-St Louis
MCISTL
Kansas City
Tue 11/3
2:15 pm-7:30 pm
1 stop5h 15m
Lambert-St Louis
Thu 11/5
2:40 pm-3:50 pm
Nonstop1h 10m
Kansas CitySt. Louis
MCI Kansas City - STL Lambert-St Louis
MCISTL
Kansas City
Fri 11/6
8:40 pm-12:35 am
1 stop3h 55m
Lambert-St Louis
Thu 11/12
8:25 am-9:35 am
Nonstop1h 10m
Kansas CitySt. Louis
MCI Kansas City - STL Lambert-St Louis
MCISTL
Kansas City
Mon 11/16
12:20 pm-1:20 pm
Nonstop1h 00m
Lambert-St Louis
Mon 11/16
4:40 pm-10:20 pm
1 stop5h 40m
Kansas CitySt. Louis
MCI Kansas City - STL Lambert-St Louis
MCISTL
Kansas City
Fri 11/6
8:43 pm-7:14 pm
1 stop22h 31m
Lambert-St Louis
Fri 11/13
7:59 pm-7:47 pm
1 stop23h 48m
Kansas CitySt. Louis
MCI Kansas City - STL Lambert-St Louis
MCISTL
Kansas City
Tue 11/10
8:43 pm-3:23 pm
1 stop18h 40m
Lambert-St Louis
Thu 11/12
1:28 pm-11:55 am
1 stop22h 27m
See travel insights to St. Louis from
How to get the cheapest flight ticket from Kansas City to St. Louis
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Kansas City and St. Louis?
Prices are currently low for flights on this route.
Typical prices usually range from $347 to $659.The lowest price recently found on this route was $117.
What is the cheapest month to fly to St. Louis?
In general, December is the cheapest month to fly from Kansas City to St. Louis. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $261. The month of November is another great option to travel to St. Louis, with average flight prices from Kansas City averaging around $325.
What is the cheapest Kansas City to Lambert-St Louis flight route?
Fly from Kansas City to Lambert-St Louis for the best Kansas City - Lambert-St Louis flight prices
What cabin class options are available on Kansas City to St. Louis flights?
There is only 1 cabin class available to choose from on Kansas City to St. Louis flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Kansas City to St. Louis flights?
No. A direct flight is the cheapest option for a flight between Kansas City to St. Louis.
When to book flights from Kansas City to St. Louis
Cheap Kansas City to St. Louis (MCI to STL) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Kansas City to St. Louis
Frequently asked questions about flying from Kansas City to St. Louis
How far is Kansas City to Lambert-St Louis by plane?
The straight-line distance from Kansas City to Lambert-St Louis is 237.1 mi. 1h 00m is a normal flight duration for this route.
When did momondo last update prices for flights from Kansas City Airport to Lambert-St Louis Airport?
Prices for flights from Kansas City Airport to Lambert-St Louis Airport refresh daily.
How many operators does momondo search for flights from Kansas City Airport to Lambert-St Louis Airport?
The number of operators available for flights from Kansas City Airport to Lambert-St Louis Airport is 1 as of October 2026.
How old do you have to be to fly from Kansas City Airport to Lambert-St Louis Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Kansas City Airport to Lambert-St Louis Airport.
What documentation or ID do you need to fly to Lambert-St Louis Airport?
The required travel and health documents for your Lambert-St Louis Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Lambert-St Louis Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Kansas City to St. Louis?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Kansas City to St. Louis is Boeing 737 MAX 8 (32.06% of total bookings). The next most popular plane models are Boeing 737-800 Passenger/BBJ2 (winglets) (18.66%), Canadair (Bombardier) Regional Jet 900 (7.66%), and Airbus A320-100/200 (5.26%).
What is the most popular airline from Kansas City to St. Louis?
Based on momondo bookings for flights between Kansas City and St. Louis, the leading airline is Southwest, making up 100% of the total bookings.
Best airlines flying from Kansas City to St. Louis
Compare and see reviews for airlines that fly from Kansas City to St. Louis with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $292 | Free Cancellation | Rating 7.9 4,222 reviews |
Southwest Flights From Kansas City to St. Louis
Across 6 Southwest flights from Kansas City to St. Louis this week, the average price was $583, with the best Southwest deals starting from $292 round-trip. 4,222 users have rated Southwest on momondo, with an average score of 7.9/10.
Traveling to a place near St. Louis?
Book flights to St. Louis if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Kansas City to St. Louis?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Kansas City to St. Louis. momondo saves you time and could save you money on your trip.
Can I find flights from Kansas City to St. Louis with flexible booking policies on momondo?
Flights from Kansas City to St. Louis with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Kansas City to St. Louis?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to St. Louis from Kansas City.
I’m not ready to book a flight from Kansas City to St. Louis right now. Can momondo alert me if prices change?
If you are simply researching potential flights to St. Louis, momondo offers a useful price alert feature which will track prices for flights to St. Louis from Kansas City and alert you when they change.