Cheap Flight Tickets from Chicago (CHI) to San Diego (SAN)

Low Price Flights from Chicago to San Diego

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Flights from Chicago to San Diego Starting at CNY 55

We've found these cheap flights for you. You can book one-way or return flight tickets.

One way
Return

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Airlines Flying from Chicago to San Diego

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Spirit Airlines

From AU$ 55

Frontier Airlines

From AU$ 80

American Airlines

From AU$ 137

Alaska Airlines

From AU$ 162

Delta Air Lines

From AU$ 174

United Airlines

From AU$ 175

Southwest Airlines

From AU$ 179

Sun Country Airlines

From AU$ 304

Jetblue Airways

From AU$ 347

ANA airlines

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Alternative Routes from Chicago to San Diego

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Chicago to San Diego.

Cheapest
ORD
22:52
12h 22m
1 transfer
SAN
09:14
O'Hare International Airport - San Diego International Airport
Tue, May 21Spirit Airlines
AU$ 55
MDW
14:45
8h 40m
1 transfer
SAN
21:25
Midway International Airport - San Diego International Airport
Tue, May 21Frontier Airlines
AU$ 70
MDW
14:45
8h 40m
1 transfer
SAN
21:25
Midway International Airport - San Diego International Airport
Tue, May 21Frontier Airlines
AU$ 70
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How do I find the cheapest flights?

When are flight from Chicago (CHI) to San Diego (SAN) the cheapest?
Airlines adjust prices for flights from Chicago to San Diego based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
How much are flights from Chicago (CHI) to San Diego (SAN) cost?
According to Trip.com's data, the lowest price is around AU$ 477.
How long is the flights from Chicago (CHI) to San Diego (SAN)?
It takes about 4 hours 37 minutes to fly from Chicago (CHI) to San Diego (SAN).
What is the transportation method from the main airport to downtown in San Diego?
- The distance from San Diego International Airport to downtown is about 3km, by taxi about 20 minutes.
What time does the earliest flight from Chicago to San Diego depart?
The earliest flight departs from Chicago (ORD) at 07:15 and arrives in San Diego (SAN) at 14:58.
What time does the latest flight from Chicago to San Diego depart?
The latest flight departs from Chicago (ORD) at 19:35 and arrives in San Diego (SAN) at 21:47.
What are the most popular airlines that fly from Chicago (CHI) to San Diego (SAN)?
Airlines with flights from Chicago (CHI) to San Diego (SAN): Emirates, United Airlines, Alaska Airlines, Gulf Air, Finnair, American Airlines, Southwest Airlines, Qatar Airways and Aer Lingus.
What's the most popular airline for direct flights from Chicago (CHI) to San Diego (SAN)?
American Airlines operates 1 direct flights from Chicago (CHI) to San Diego (SAN).
How many airports in San Diego (SAN)?
There are 7 airport(s) in San Diego (SAN): McClellan-Palomar Airport, San Diego Montgomery Field, Miramar Naval Air Station, North Island Naval Air Station, San Diego International Airport, San Diego Brown Municipal Airport and San Diego Gillespie Field.

How to find a cheap flight from Chicago to San Diego

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Chicago to San Diego. Book your flights at the right time and save more.

Book Early

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Compare Flight Prices

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Look Out for Deals

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Check One-way Fares

Buying two cheap one-way flights can sometimes be a better deal than a round-trip.

Try Different Dates

Flying during the week, early in the morning, or late at night can help save money.

Use the Trip.com App

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Flight Information from Chicago to San Diego

Cheapest direct flight price	AU$ 54
Cheapest return ticket price	AU$ 226
Off-season for travel	May
Peak season for travel	July
Flight distance	2,786.63km
Average flight time	4 hours 37 minutes
Popular airline	American Airlines