Cheap flights from St. Louis, MO to Chicago, IL
Choose between Frontier Airlines, Spirit Airlines, or Allegiant Air to find the best price
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Cheapest nonstop round-trip | $157 |
---|---|
Nonstop flights in May | $157 – $1,851 |
Most popular airline | Frontier Airlines |
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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 Frontier Airlines, Spirit Airlines, Allegiant Air, Southern Airways Express, and United Airlines. St. Louis and Chicago have 232 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 28.04 - Sat 04.05
Airline | Sun 28.04 | Mon 29.04 | Tue 30.04 | Wed 01.05 | Thu 02.05 | Fri 03.05 | Sat 04.05 |
---|---|---|---|---|---|---|---|
6 | 6 | 6 | 6 | 6 | 6 | 6 | |
2 | 3 | 1 | 1 | 1 | --- | --- | |
--- | --- | --- | 2 | --- | 1 | 1 | |
--- | --- | --- | --- | --- | --- | --- |
Weekly direct flights for Sun 05.05 - Sat 11.05
Airline | Sun 05.05 | Mon 06.05 | Tue 07.05 | Wed 08.05 | Thu 09.05 | Fri 10.05 | Sat 11.05 |
---|---|---|---|---|---|---|---|
6 | 6 | --- | --- | --- | --- | --- | |
4 | 2 | --- | --- | --- | --- | --- | |
--- | --- | --- | --- | --- | --- | --- | |
--- | 2 | --- | --- | --- | --- | --- |
Check-in for a flight from St. Louis to Chicago
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
Allegiant Air | AAY | G4 | No | Opens 24 days before flight Closes 1 hours before flight |
Southern Airways Express | FDY | 9X | Yes | No |
United Airlines | UAL | UA | Yes | No |
Weather in Chicago
Average Weather
Month | Average monthly max temperature | Average monthly min temperature |
January | 0°C | -6°C |
February | 0°C | -5°C |
March | 6°C | 0°C |
April | 11°C | 4°C |
May | 17°C | 10°C |
June | 22°C | 16°C |
July | 25°C | 20°C |
August | 25°C | 19°C |
September | 22°C | 16°C |
October | 15°C | 10°C |
November | 8°C | 3°C |
December | 2°C | -1°C |
14 day forecast
Frequently asked questions
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Airports near St. Louis
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