Cheap flights from Kansas City to St. Louis (MCI - STL) from $44
This is the cheapest one-way flight price, found on 9/27. Prices may vary by date and flight preferences.
How to find the cheapest flight from Kansas City (MCI) to St. Louis (STL)
All the information you need to plan the best MCI to STL flight in 2023: compare Kansas City to St. Louis flight prices with the expected peak season, weather and rainfall in St. Louis.
Popular in | January |
|---|---|
Cheapest in | November |
Round-trip from | $299 |
One-way from | $171 |
MCI - STL Price | $299 - $474 |
|---|---|
STL Temperature | 32 - 80.6 °F |
STL Rainfall | 2.2 - 4.7 inches |
When is the cheapest time to fly from Kansas City to St. Louis (MCI - STL)?
When flying from Kansas City to St. Louis, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Cheap Frontier flights from Kansas City to St. Louis
Take a peek at the cheapest Frontier flights we've detected traveling from Kansas City to St. Louis. Make sure to check back often as deals are often changing.
Cheap American Airlines flights from Kansas City to St. Louis
Some of the lowest-priced American Airlines flights we've found at this time heading from Kansas City to St. Louis. If these deals don't fit your criteria, make sure to check back soon as new deals are always added.
Cheap Kansas City to St. Louis flights in September & October 2023
The best prices found for MCI to STL flights for September, October
Check out some of the best flight deals from Kansas City to St. Louis in 2023. Check back regularly for other flight deals.
Kansas City to St. Louis 2023 flight deals
Cheap flights to St. Louis from Kansas City found for this year
Check out some of the best flight deals from Kansas City to St. Louis in 2023. Check back regularly for other flight deals.
Kansas City to St. Louis flights leaving soon
Late deals on return flights to St. Louis from Kansas City, departing today and this week
Book one of these great deals on flights from Kansas City to St. Louis. Users should be sure to double check the price, date, and time of their last-minute flight.
One-way flights to St. Louis from Kansas City
The cheapest one-way flights from Kansas City to St. Louis
Users in need of a one-way flight from Kansas City to St. Louis can choose from these deals. Users can also find round-trip Kansas City to St. Louis flights by using the search form above.
Find flights from Kansas City to St. Louis within your budget
Use the slider to find flights from Kansas City to St. Louis that fit your budget.
Fly from
Fly to
Budget
$160 - $306
Route
Depart
Return
Price
Kansas CityLambert-St Louis
MCI - STL
MCISTL
Kansas City
Fri 10/27
1 stop11h 20m
Lambert-St Louis
Fri 11/3
1 stop26h 56m
Kansas CityLambert-St Louis
MCI - STL
MCISTL
Kansas City
Tue 10/24
1 stop5h 20m
Lambert-St Louis
Wed 10/25
1 stop4h 47m
Kansas CityLambert-St Louis
MCI - STL
MCISTL
Kansas City
Fri 10/27
1 stop12h 29m
Lambert-St Louis
Sun 10/29
1 stop11h 00m
Kansas CityLambert-St Louis
MCI - STL
MCISTL
Kansas City
Tue 10/24
1 stop10h 04m
Lambert-St Louis
Wed 10/25
2 stops13h 05m
Kansas CityLambert-St Louis
MCI - STL
MCISTL
Kansas City
Tue 10/24
1 stop10h 04m
Lambert-St Louis
Wed 10/25
2 stops22h 50m
Kansas CityLambert-St Louis
MCI - STL
MCISTL
Kansas City
Tue 10/24
1 stop10h 04m
Lambert-St Louis
Wed 10/25
3 stops22h 50m
Kansas CityLambert-St Louis
MCI - STL
MCISTL
Kansas City
Mon 10/23
1 stop26h 41m
Lambert-St Louis
Thu 10/26
1 stop25h 54m
Kansas CityLambert-St Louis
MCI - STL
MCISTL
Kansas City
Thu 10/26
1 stop4h 46m
Lambert-St Louis
Fri 10/27
1 stop5h 18m
Kansas CityLambert-St Louis
MCI - STL
MCISTL
Kansas City
Wed 10/11
1 stop10h 04m
Lambert-St Louis
Thu 10/12
1 stop12h 48m
Reviews of airlines servicing St. Louis
See what other customers who have flown with Frontier, American Airlines and Spirit Airlines 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.
Food
Entertainment
Crew
Comfort
Boarding
Overall
Reviews
Flight was really enjoyable. Nice dinner and breakfast. Good selection of movies and other programs. Most importantly, departure and arrival were on time.
Food
Entertainment
Crew
Comfort
Boarding
Overall
Reviews
Flight was really enjoyable. Nice dinner and breakfast. Good selection of movies and other programs. Most importantly, departure and arrival were on time.
Food
Entertainment
Crew
Comfort
Boarding
Overall
Reviews
Flight was really enjoyable. Nice dinner and breakfast. Good selection of movies and other programs. Most importantly, departure and arrival were on time.
Food
Entertainment
Crew
Comfort
Boarding
Overall
Reviews
Flight was really enjoyable. Nice dinner and breakfast. Good selection of movies and other programs. Most importantly, departure and arrival were on time.
Food
Entertainment
Crew
Comfort
Boarding
Overall
Reviews
Flight was really enjoyable. Nice dinner and breakfast. Good selection of movies and other programs. Most importantly, departure and arrival were on time.
Related info for your journey
Useful info, stats and facts about Kansas City to St. Louis flights.
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 are 2 daily flights to St. Louis from 1 airline. 4h 00m is how long a flight from Kansas City to Lambert-St Louis will take if you book a nonstop flight.
Can I find flights from Kansas City to St. Louis for under $200 on Cheapflights?
Yes, there are multiple flights from Kansas City to St. Louis for under $200. The cheapest flight booked recently is on Frontier for just $160, but on average you can expect to pay $288.
Are there last-minute flights available from Kansas City to St. Louis for under $600?
There are currently 2+ open flights from Kansas City to St. Louis within the next 7 days for less than $600.
What days are nonstop flights available from Kansas City to St. Louis?
Nonstop flights are available for this route on the following days: Tuesday, Friday, Saturday.
How many flights depart from Kansas City to St. Louis on average per day?
On average 6 flights depart from Kansas City to St. Louis per day.
Early Morning (Midnight to 6am) - 33% of flight departures
Morning (6am - Noon) - 33% of flight departures
Afternoon (Noon - 6pm) - 33% of flight departures
How long is the flight from Kansas City to St. Louis?
A quick flight from Kansas City to St. Louis can take about 5h 20m. Frontier provides one of the quickest options available for as low as $160. There are 238 mi between Kansas City and St. Louis. This flight may include one or multiple stops.
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 Frontier. Our recent data shows that you can find tickets from as low as $160 on this airline. Additional options worth looking into are American Airlines and Spirit Airlines, starting at $177 and $259 round-trip.
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 $44. Spirit Airlines flights start at $155 while deals on United Airlines start at $329 one-way.
What does MCI to STL mean?
These are just IATA (International Air Transport Association) codes. They are used in aviation to identify and differentiate airports. That’s why a Kansas City Airport to Lambert-St Louis Airport flight would often be abbreviated as a MCI to STL flight.
Other flights to St. Louis
Flights to St. Louis from Kansas City
Top airline flying from Kansas City to St. Louis
The chart below displays the airlines Cheapflights users traveling from Kansas City to St. Louis choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Hourly flight availability from Kansas City to St. Louis
See what time of day planes typically take off from Kansas City to St. Louis
| 29%of flight departures | Early morningMidnight to 6 am |
|---|---|
| 24%of flight departures | Morning6 am to noon |
| 47%of flight departures | AfternoonNoon to 6 pm |
| 0%of flight departures | Evening6 pm to midnight |
Weekly flight availability from Kansas City to St. Louis
See how many times per day planes take to the skies headed from Kansas City to St. Louis
| Sunday | 2daily flights |
|---|---|
| Monday | 3daily flights |
| Tuesday | 3daily flights |
| Wednesday | 3daily flights |
| Thursday | 3daily flights |
| Friday | 3daily flights |
| Saturday | 1daily flight |
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When you search for this flight from Kansas City to St. Louis, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Kansas City to St. Louis?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Kansas City to St. Louis.
Can Cheapflights find flights from Kansas City to St. Louis with no change fees?
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Can Cheapflights notify me if prices for flights from Kansas City to St. Louis become cheaper?
Yes, Cheapflights does offer price alerts on Kansas City to St. Louis flights so you can book your travels when it’s right. The Price Alert feature is available after a flight search is performed above.