Expect security screening at STL to take 5 to 10 minutes during off-peak times. Check real-time wait times online before heading to the airport.

Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $247 (Kiwi.com) |
One-way from | $59 (Southwest) |
Popular in | January |
Cheapest in | March |
Average price | $341 |
Fly from
Fly to
Route
Depart
Return
Price
St. LouisKansas City
STL - MCI
STLMCI
Lambert-St Louis
Wed 12/17
2:25 pm-3:35 pm
Nonstop1h 10m
Kansas City
Thu 12/18
1:30 pm-2:30 pm
Nonstop1h 00m
St. LouisKansas City
STL - MCI
STLMCI
Lambert-St Louis
Thu 12/11
12:04 pm-11:18 am
1 stop23h 14m
Kansas City
Mon 12/15
3:47 pm-10:33 pm
1 stop30h 46m
St. LouisKansas City
STL - MCI
STLMCI
Lambert-St Louis
Mon 12/1
4:13 pm-12:03 pm
1 stop19h 50m
Kansas City
Mon 12/8
12:46 pm-10:33 pm
2 stops33h 47m
St. LouisKansas City
STL - MCI
STLMCI
Lambert-St Louis
Wed 12/24
1:10 pm-6:40 pm
1 stop5h 30m
Kansas City
Fri 12/26
6:40 pm-7:45 pm
Nonstop1h 05m
St. LouisKansas City
STL - MCI
STLMCI
Lambert-St Louis
Wed 1/7
11:55 am-4:47 pm
1 stop4h 52m
Kansas City
Thu 1/8
7:00 am-2:47 pm
1 stop7h 47m
St. LouisKansas City
STL - MCI
STLMCI
Lambert-St Louis
Mon 11/24
8:39 am-9:23 pm
1 stop12h 44m
Kansas City
Fri 11/28
9:35 am-4:27 pm
1 stop6h 52m
St. LouisKansas City
STL - MCI
STLMCI
Lambert-St Louis
Tue 1/27
10:15 am-11:25 am
Nonstop1h 10m
St. LouisKansas City
STL - MCI
STLMCI
Lambert-St Louis
Tue 12/9
10:20 am-11:30 am
Nonstop1h 10m
St. LouisKansas City
STL - MCI
STLMCI
Lambert-St Louis
Wed 1/28
10:15 am-11:25 am
Nonstop1h 10m
St. LouisKansas City
STL - MCI
STLMCI
Lambert-St Louis
Wed 1/21
11:25 am-5:00 pm
1 stop5h 35m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
Currently, April is the cheapest month in which you can book a flight from St. Louis to Kansas City (average of $101). Flying from St. Louis to Kansas City in January is currently the most expensive (average of $694). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
It’s optimal to fly from St. Louis to Kansas City in the afternoon. By choosing this option you can save up to 29% on the cost of your flight, compared to a flight in the evening.
Overall
Boarding
Entertainment
Crew
Food
Comfort
Reviews
Mike,Aug 2025
OKC - AUS
Overall
Boarding
Entertainment
Crew
Food
Comfort
Reviews
Mike,Aug 2025
OKC - AUS
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$330 | FlexibilityNo cancel fee | On-time63% |