Cheap flights from San Diego to Chicago from £139
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How much do flights to Chicago cost?
Cheapest one-way trip | £139 |
|---|---|
Cheapest nonstop round-trip | £247 |
Cheapest round-trip | £279 |
Nonstop flights in June | £123 – £418 |
Most popular airline | United Airlines |
Getting from Chicago's airport to the city center
Fastest options: CTA Blue Line train from O'Hare. Best value: CTA Orange Line from Midway or shared ride services.
How to get from O'Hare International Airport (ORD) to Chicago?
Transport Option | Typical Time | Typical Cost | Frequency | Best For |
|---|---|---|---|---|
40-50 min | $5; standard fare | every 5–10 min (traffic dependent) | budget travelers to Loop | |
60-90 min | $2 – $5; combined bus and Metra fare | every 20–30 min (traffic dependent) | northwest suburbs connection | |
35-70 min | $45 – $65; metered; varies by traffic | on-demand 24/7 (traffic dependent) | door-to-door with luggage | |
35-70 min | $35 – $75; surge pricing may apply | on-demand 24/7 (traffic dependent) | app-based convenience | |
35-70 min | $60 – $120; pre-booked; fixed rate | by reservation (traffic dependent) | groups or business travel |
How to get from Chicago Midway International Airport (MDW) to Chicago?
Transport Option | Typical Time | Typical Cost | Frequency | Best For |
|---|---|---|---|---|
25-30 min | $5; standard fare | every 6–12 min (traffic dependent) | quick access to Loop | |
20-45 min | $30 – $45; metered; varies by traffic | on-demand 24/7 (traffic dependent) | door-to-door convenience | |
20-45 min | $25 – $50; surge pricing may apply | on-demand 24/7 (traffic dependent) | flexible pickup location |
Notes:
- Prices in USD; table created in 2025 and subject to change.
- CTA Ventra cards or contactless payment accepted on Blue and Orange Lines.
- Taxis are metered; ride-hailing prices vary with demand. Road traffic can significantly affect journey times.
- We recommend checking official transport websites for your travel planning.
Updated: December 2025
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 25.05 | Tue 26.05 | Wed 27.05 | Thu 28.05 | Fri 29.05 | Sat 30.05 | Sun 31.05 |
|---|---|---|---|---|---|---|---|
| --- | --- | 1 | 5 | 5 | 4 | 6 | |
| --- | --- | --- | 3 | 3 | 2 | 2 | |
| Weekly flights: 31 total | Daily flights: 4.43 average | Most flights: Sunday 6 flights |
| Airline | Mon 01.06 | Tue 02.06 | Wed 03.06 | Thu 04.06 | Fri 05.06 | Sat 06.06 | Sun 07.06 |
|---|---|---|---|---|---|---|---|
| 6 | 5 | 6 | 5 | 6 | 4 | 4 | |
| 3 | 2 | 2 | 3 | 3 | 2 | 3 | |
| Weekly flights: 54 total | Daily flights: 7.71 average | Most flights: Monday 6 flights |
| Airline | Mon 08.06 | Tue 09.06 | Wed 10.06 | Thu 11.06 | Fri 12.06 | Sat 13.06 | Sun 14.06 |
|---|---|---|---|---|---|---|---|
| 5 | 5 | 5 | 5 | 3 | 4 | 3 | |
| 3 | 2 | 3 | 2 | 3 | 2 | 3 | |
| Weekly flights: 48 total | Daily flights: 6.86 average | Most flights: Monday 5 flights |
| Airline | Mon 15.06 | Tue 16.06 | Wed 17.06 | Thu 18.06 | Fri 19.06 | Sat 20.06 | Sun 21.06 |
|---|---|---|---|---|---|---|---|
| 5 | 5 | 5 | 3 | 5 | 4 | 4 | |
| 3 | 3 | 3 | 3 | 3 | 2 | 3 | |
| Weekly flights: 51 total | Daily flights: 7.29 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 |
| Frontier Airlines | FFT | F9 | No |
| Alaska Airlines | ASA | AS | No |
| Allegiant Air | AAY | G4 | No |
| JetBlue Airways | JBU | B6 | 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 | 5°C |
| May | 17°C | 10°C |
| June | 22°C | 16°C |
| July | 26°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
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.
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.
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!
Frequently asked questions
Planning a trip? Thanks to our Virtual Interlining algorithm, we offer billions of route combinations between any origin and destination in the world by plane. Find the cheapest routes and best deals, as well as the best dates to travel.
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