Cheap flights from Chicago to San Diego from
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How much do flights to San Diego cost?
Cheapest nonstop round-trip | £164 |
|---|---|
Nonstop flights in July | £83 – £306 |
Most popular airline | Frontier Airlines |
Getting from San Diego airport to the city center
Fastest options: taxi or ride-hailing services. Best value: MTS Bus Route 992 and the San Diego Trolley.
Transport Option | Typical Time | Typical Cost | Frequency | Best For |
|---|---|---|---|---|
12-20 min | $2.50; single ride fare | every 15 min (traffic dependent) | budget travelers | |
25-40 min | $2.50 – $5; requires bus transfer at Old Town | every 15 min (traffic dependent) | connecting to trolley network | |
10-20 min | $15 – $25; metered; varies by traffic and destination | on-demand 24/7 (traffic dependent) | door-to-door convenience | |
10-20 min | $12 – $30; surge pricing may apply | on-demand 24/7 (traffic dependent) | app-based convenience | |
10-25 min | $30 – $60; pre-booked; varies by provider | by reservation (traffic dependent) | groups or pre-arranged travel | |
10-20 min | $40 – $100; daily rate; varies by provider and vehicle | on-demand (traffic dependent) | exploring San Diego region |
Notes:
- Prices in USD; table created in 2025 and subject to change.
- MTS Bus Route 992 operates between the airport and downtown via Old Town Transit Center.
- Taxis and ride-hailing services pick up at designated areas outside each terminal.
- Rental car facilities are located at the Rental Car Center, accessible via a free shuttle.
- We recommend checking official transport websites for your travel planning.
Updated: December 2025
Key info about flying to San Diego
Weekly direct flights
Discover the top airlines offering direct flights from Chicago to San Diego in the next month. You’ll find the number of daily direct flights per airline in the chart.
| Airline | Mon 20.07 | Tue 21.07 | Wed 22.07 | Thu 23.07 | Fri 24.07 | Sat 25.07 | Sun 26.07 |
|---|---|---|---|---|---|---|---|
| 4 | 5 | 4 | 5 | 5 | 5 | 5 | |
| 3 | 3 | 3 | 3 | 3 | 2 | 3 | |
| --- | --- | --- | --- | --- | --- | --- | |
| Weekly flights: 53 total | Daily flights: 7.57 average | Most flights: Tuesday 5 flights |
| Airline | Mon 27.07 | Tue 28.07 | Wed 29.07 | Thu 30.07 | Fri 31.07 | Sat 01.08 | Sun 02.08 |
|---|---|---|---|---|---|---|---|
| 5 | 5 | 5 | 5 | 5 | 5 | 5 | |
| 3 | 3 | 3 | 3 | 3 | 2 | 3 | |
| --- | --- | --- | --- | --- | --- | --- | |
| Weekly flights: 55 total | Daily flights: 7.86 average | Most flights: Monday 5 flights |
| Airline | Mon 03.08 | Tue 04.08 | Wed 05.08 | Thu 06.08 | Fri 07.08 | Sat 08.08 | Sun 09.08 |
|---|---|---|---|---|---|---|---|
| 4 | 5 | 5 | 5 | 5 | 5 | 5 | |
| 3 | 3 | 3 | 3 | 3 | 2 | 3 | |
| --- | --- | --- | --- | --- | --- | --- | |
| Weekly flights: 54 total | Daily flights: 7.71 average | Most flights: Tuesday 5 flights |
| Airline | Mon 10.08 | Tue 11.08 | Wed 12.08 | Thu 13.08 | Fri 14.08 | Sat 15.08 | Sun 16.08 |
|---|---|---|---|---|---|---|---|
| 5 | 6 | 6 | 6 | 6 | 5 | 5 | |
| 3 | 3 | 3 | 3 | 3 | 2 | 3 | |
| --- | --- | --- | --- | --- | --- | --- | |
| Weekly flights: 59 total | Daily flights: 8.43 average | Most flights: Tuesday 6 flights |
Check-in for a flight from Chicago to San Diego
| Name | Carrier code | IATA Code | Passport needed during booking |
|---|---|---|---|
| Frontier Airlines | FFT | F9 | No |
| United Airlines | UAL | UA | No |
| Alaska Airlines | ASA | AS | No |
| Allegiant Air | AAY | G4 | No |
| Volaris | VOI | Y4 | No |
Online check-in is not available for these airlines.
Weather in San Diego
Average Weather
| Month | Average monthly max temperature | Average monthly min temperature |
| January | 18°C | 10°C |
| February | 17°C | 10°C |
| March | 18°C | 11°C |
| April | 19°C | 12°C |
| May | 20°C | 14°C |
| June | 22°C | 16°C |
| July | 24°C | 18°C |
| August | 25°C | 19°C |
| September | 25°C | 19°C |
| October | 23°C | 16°C |
| November | 21°C | 13°C |
| December | 17°C | 11°C |
14 day forecast
San Diego travel tips
Is there a place to discover history in San Diego?
Old Town San Diego State Historic Park takes tourists back to the middle of the 19th century. Restored historical buildings are scattered throughout the park, including several original buildings that have survived to this day. Walking through this park, you can see what life was like in this sunny city in the 19th century. You can pet donkeys, watch a blacksmith working, and feel how American and Mexican cultures mix in San Diego.
Go on a whale-watching boat trip in San Diego
California gray whales can live for over 70 years and grow up to 15 meters. They migrate from Alaska to Mexico between December and April, and you can get incredible emotions when seeing them up very close. The tours are offered on the promenade in San Diego and are quite affordable (from $35).
Enjoy Shakespeare plays at the San Diego historic theatre
The Old Globe is an atmospheric theatre in Balboa Park, opened in 1936. The theatre is a copy of the London Globe Theatre, where William Shakespeare staged his works. The Old Globe is one of the leading theatres in California and in the United States. On its stage, you can see the classic plays of Shakespeare, legendary musicals, and performances based on original and adapted scripts.
Frequently asked questions
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