Cheap flights from Idaho Falls, ID to Chicago, IL
Flights starting at £86. Choose between Allegiant Air, Frontier Airlines, or Alaska Airlines to find the best price.
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Tips to know when travelling to Chicago
Cheapest one-way trip | £153 |
---|---|
Cheapest round-trip | £264 |
Most popular airline | Allegiant Air |
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Book your trip to arrive at O Hare International, Chicago Midway International, or Chicago Rockford International. The most popular airlines for this route are Allegiant Air, Frontier Airlines, Alaska Airlines, United Airlines, and Spirit Airlines. Idaho Falls and Chicago have 170 direct flights per week.
Check-in for a flight from Idaho Falls to Chicago
Name | Carrier code | IATA Code | Passport needed during booking | Online check-in available |
---|---|---|---|---|
Allegiant Air | AAY | G4 | No | Opens 24 days before flight Closes 1 hours before flight |
Frontier Airlines | FFT | F9 | No | Opens 24 days before flight Closes 1 hours before flight |
Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
United Airlines | UAL | UA | Yes | No |
Spirit Airlines | NKS | NK | No | Opens 24 days before flight Closes 1 hours before flight |
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 | 10°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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