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Home / Kansas City — St Louis

Cheap flights Kansas City — St Louis

383 km ~57m 13 flights found 3 airlines cheapest on Friday
How many travellers?
Adults
12+ years
1
Children
2–11 years
0
Infants
under 2
0
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December 2026
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January 2027
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Prices found for 0 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Route characteristics
Distance
383 km
Flight time
57m
Time difference
+0h
Departures per week
1
Cheapest day
Friday
Departure airports (1)
MCI Kansas City International Airport
Arrival airports (1)
STL Lambert-St. Louis International Airport
Airlines (3)
F9 Frontier Airlines G4 Allegiant Air WN Southwest Airlines
Agencies (2)
Farera Tickets
Airlines — cheapest prices 3
Frontier Airlines
Frontier Airlines
Low-cost 6 flights · 6 days
$146
Allegiant Air
Allegiant Air
Low-cost 1 flights · 1 days
$276
Southwest Airlines
Southwest Airlines
Low-cost 6 flights · 6 days
$393
Where to buy tickets 2
Farera
10 tickets · 7 days
from $146
Tickets
3 tickets · 3 days
from $276
Airports

From — Kansas City (1)

  • MCI Kansas City International Airport

To — St Louis (1)

  • STL Lambert-St. Louis International Airport
Other destinations from Kansas City
Frequently asked questions about the route Kansas City — St Louis
How long is the flight from Kansas City to St Louis?
Approximate flight time — 57m. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from Kansas City to St Louis?
The straight-line distance — 383 km.
What is the time difference between Kansas City and St Louis?
The difference — +0h.
From which airports does Kansas City operate flights?
From Kansas City: MCI (Kansas City International Airport).
To which airports in St Louis do flights arrive?
To St Louis: STL (Lambert-St. Louis International Airport).
Which airlines fly this route?
This route is served by 3 airlines: Frontier Airlines, Allegiant Air, Southwest Airlines.
Which day of the week is cheapest?
The cheapest day of the week — Friday.
When is the best time to buy tickets?
Optimal — 1–3 months before departure. Check the calendar above — it shows the best dates.
How do I book flights?
Click "View this ticket" on any flight card — you'll be redirected to the booking page with this specific ticket pre-selected.
About the route Kansas City — St Louis

Flights Kansas City — St Louis is a popular route. The straight-line distance is 383 km. Flight time 57m. Time difference +0h.

From Kansas City (MKC) flights depart from 1 airport: MCI. To St Louis (STL) — 1 arrival airport: STL.

3 airlines operate on this route: Frontier Airlines, Allegiant Air, Southwest Airlines.

Cheapest day to fly — Friday.

Other destinations in United States from Kansas City