Cheap flights from San Diego, CA to Chicago, IL
Flights starting at £53. Choose between Frontier Airlines, Spirit Airlines, or Allegiant Air to find the best price.
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Tips to know when travelling to Chicago
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Weekly direct flights
Discover the top airlines offering direct flights from San Diego to Chicago in the next month. You’ll find the number of daily direct flights per airline in the table.
Weekly direct flights for Mon 18.03 - Sun 24.03
Airline | Mon 18.03 | Tue 19.03 | Wed 20.03 | Thu 21.03 | Fri 22.03 | Sat 23.03 | Sun 24.03 |
---|---|---|---|---|---|---|---|
4 | 4 | 2 | 4 | 4 | 4 | 4 | |
1 | 1 | 1 | 3 | 1 | 2 | --- |
Weekly direct flights for Mon 25.03 - Sun 31.03
Airline | Mon 25.03 | Tue 26.03 | Wed 27.03 | Thu 28.03 | Fri 29.03 | Sat 30.03 | Sun 31.03 |
---|---|---|---|---|---|---|---|
4 | 4 | 4 | 4 | 4 | 4 | 5 | |
3 | 2 | 3 | 2 | 1 | --- | --- |
Weekly direct flights for Mon 01.04 - Sun 07.04
Airline | Mon 01.04 | Tue 02.04 | Wed 03.04 | Thu 04.04 | Fri 05.04 | Sat 06.04 | Sun 07.04 |
---|---|---|---|---|---|---|---|
5 | 5 | 6 | 5 | 5 | 5 | 5 | |
--- | --- | 2 | 1 | 3 | 2 | 3 |
Weekly direct flights for Mon 08.04 - Sun 14.04
Airline | Mon 08.04 | Tue 09.04 | Wed 10.04 | Thu 11.04 | Fri 12.04 | Sat 13.04 | Sun 14.04 |
---|---|---|---|---|---|---|---|
5 | 5 | 5 | 6 | 5 | 5 | 5 | |
2 | --- | 3 | 3 | 3 | 3 | 3 |
Check-in for a flight from San Diego 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 |
Alaska Airlines | ASA | AS | No | Opens 24 days before flight Closes 1 hours before flight |
United Airlines | UAL | UA | Yes | No |
Chicago travel tips
1) Try the Chicago-style hot dog — you'll love it! | A Chicago hot dog is filled with beef sausage, hot peppers, other additives, and no ketchup. Try a real Chicago hot dog at HotGDog, Devil Dawgs, or Downtown Dogs. |
---|---|
2) Bring warm clothes with you in Chicago, even if you are planning a summer trip | Cold winds are common in Chicago, often named “the Windy City.” Thus, a sweater and windbreaker will come in handy even in summer. The average temperature during the summer months in Chicago is about 25 degrees Celsius. In addition, summer is considered the high season in Chicago, which means more high-priced accommodation. |
3) Be impressed by the dimensions of one of the tallest skyscrapers in Chicago | The Willis Tower (formerly the Sears Tower) was once the tallest building in the world. It is now considered the third-tallest building in the USA and the 23rd tallest in the whole world. Plus, this skyscraper will look great in your photos! |
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 | 5°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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