Cheap flights from San Diego to Chicago from £40
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How much do flights to Chicago cost?
Key info about flying to Chicago
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 chart.
| Airline | Mon 21.04 | Tue 22.04 | Wed 23.04 | Thu 24.04 | Fri 25.04 | Sat 26.04 | Sun 27.04 |
|---|---|---|---|---|---|---|---|
| --- | --- | --- | --- | --- | --- | --- | |
| --- | --- | --- | --- | --- | --- | --- | |
| --- | --- | --- | --- | --- | --- | --- | |
| Weekly flights: 0 total | Daily flights: 0 average | Most flights: 0 flights |
| Airline | Mon 28.04 | Tue 29.04 | Wed 30.04 | Thu 01.05 | Fri 02.05 | Sat 03.05 | Sun 04.05 |
|---|---|---|---|---|---|---|---|
| --- | 4 | 4 | 4 | 3 | 3 | 4 | |
| --- | 4 | 4 | 4 | 4 | --- | --- | |
| --- | 4 | 4 | 4 | 4 | 4 | 3 | |
| Weekly flights: 61 total | Daily flights: 8.71 average | Most flights: Tuesday 4 flights |
| Airline | Mon 05.05 | Tue 06.05 | Wed 07.05 | Thu 08.05 | Fri 09.05 | Sat 10.05 | Sun 11.05 |
|---|---|---|---|---|---|---|---|
| 3 | 5 | 5 | 5 | 5 | 5 | 5 | |
| 3 | 3 | 2 | 4 | --- | --- | 2 | |
| 1 | 1 | 2 | --- | 4 | 4 | 2 | |
| Weekly flights: 61 total | Daily flights: 8.71 average | Most flights: Tuesday 5 flights |
| Airline | Mon 12.05 | Tue 13.05 | Wed 14.05 | Thu 15.05 | Fri 16.05 | Sat 17.05 | Sun 18.05 |
|---|---|---|---|---|---|---|---|
| 5 | 5 | 5 | 4 | 4 | 5 | 5 | |
| 3 | 4 | 4 | 4 | 3 | 4 | 3 | |
| 1 | --- | --- | --- | 1 | --- | --- | |
| Weekly flights: 60 total | Daily flights: 8.57 average | Most flights: Monday 5 flights |
Check-in for a flight from San Diego to Chicago
| Name | Carrier code | IATA Code | Passport needed during booking |
|---|---|---|---|
| United Airlines | UAL | UA | No |
| Alaska Airlines | ASA | AS | No |
| American Airlines | AAL | AA | No |
| Spirit Airlines | NKS | NK | No |
| Frontier Airlines | FFT | F9 | No |
Online check-in is not available for these airlines.
Weather in Chicago
Average Weather
| Month | Average monthly max temperature | Average monthly min temperature |
| January | -1°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
Chicago travel tips
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.
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.
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!
Frequently asked questions
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