Cheap flights from St. Louis, MO to Chicago, IL

Flights starting at CA$89. Choose between American Airlines, Frontier Airlines, or Spirit Airlines to find the best price.

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Book your trip to arrive at O Hare International, Chicago Midway International, or Chicago Rockford International. The distance between St. Louis and Chicago is 415 km. The most popular airlines for this route are American Airlines, Frontier Airlines, Spirit Airlines, United Airlines, and Southern Airways Express. St. Louis and Chicago have 338 direct flights per week.

Weekly direct flights

Discover the top airlines offering direct flights from St. Louis to Chicago in the next month. You’ll find the number of daily direct flights per airline in the table.

Weekly direct flights for Sun 18.02 - Sat 24.02

AirlineSun 18.02Mon 19.02Tue 20.02Wed 21.02Thu 22.02Fri 23.02Sat 24.02
4343474
6665555

Weekly direct flights for Sun 25.02 - Sat 02.03

AirlineSun 25.02Mon 26.02Tue 27.02Wed 28.02Thu 29.02Fri 01.03Sat 02.03
5535453
6665566

Weekly direct flights for Sun 03.03 - Sat 09.03

AirlineSun 03.03Mon 04.03Tue 05.03Wed 06.03Thu 07.03Fri 08.03Sat 09.03
5436443
6666644

Weekly direct flights for Sun 10.03 - Sat 16.03

AirlineSun 10.03Mon 11.03Tue 12.03Wed 13.03Thu 14.03Fri 15.03Sat 16.03
4534434
5566554

Check-in for a flight from St. Louis to Chicago

NameCarrier codeIATA CodePassport needed during bookingOnline check-in available
American AirlinesAALAANoNo
Frontier AirlinesFFTF9NoOpens 24 days before flight
Closes 1 hours before flight
Spirit AirlinesNKSNKNoOpens 24 days before flight
Closes 1 hours before flight
United AirlinesUALUAYesNo
Southern Airways ExpressFDY9XYesNo

Weather in Chicago

Average Weather

MonthAverage monthly max temperatureAverage monthly min temperature
January0°C-6°C
February0°C-5°C
March5°C0°C
April10°C4°C
May17°C10°C
June22°C16°C
July25°C20°C
August25°C19°C
September22°C16°C
October15°C10°C
November8°C3°C
December2°C-1°C
Hottest Month
25°C
July
Coldest month
-6°C
January
Sunny days
253
days per year
Snow days
17
days per year

14 day forecast

Thursday
22 Feb
78%
9°C6°C
29 Feb
66%
1°C-4°C
Friday
23 Feb
7°C0°C
1 Mar
11°C1°C
Saturday
24 Feb
20%
2°C-1°C
2 Mar
10°C4°C
Sunday
25 Feb
11°C2°C
3 Mar
11°C4°C
Monday
26 Feb
13°C4°C
4 Mar
87%
10°C8°C
Tuesday
27 Feb
81%
16°C11°C
5 Mar
85%
13°C9°C
Wednesday
28 Feb
89%
12°C1°C
6 Mar
11°C4°C

Frequently asked questions

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