Cheap flights from Chicago O'Hare to San Diego from $69

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Cheap Chicago O'Hare - San Diego flight offers

Find cheap flight tickets and last-minute flight deals from Chicago O'Hare to San Diego

Frontier Airlines
Sun, 06/28 (ORD) Chicago -> (SAN) San Diego
Direct
Frontier Airlines
Tue, 07/07 (SAN) San Diego -> (ORD) Chicago
Direct

Price found 14 days ago
from $73
United
Wed, 07/29 (ORD) Chicago -> (SAN) San Diego
Direct
United
Sun, 08/02 (SAN) San Diego -> (ORD) Chicago
Direct

Price found 9 days ago
from $96
Frontier Airlines
Wed, 07/01 (ORD) Chicago -> (SAN) San Diego
Direct
Frontier Airlines
Mon, 07/06 (SAN) San Diego -> (ORD) Chicago
Direct

Price found 14 days ago
from $99
United
Tue, 07/28 (ORD) Chicago -> (SAN) San Diego
Direct
United
Sun, 08/02 (SAN) San Diego -> (ORD) Chicago
Direct

Price found 9 days ago
from $104
DELTA
Fri, 07/31 (ORD) Chicago -> (SAN) San Diego
Direct

Price found 4 days ago
from $54
DELTA
Wed, 07/29 (ORD) Chicago -> (SAN) San Diego
Direct

Price found 4 days ago
from $55
DELTA
Thu, 07/16 (ORD) Chicago -> (SAN) San Diego
Direct

Price found 2 days ago
from $69
Alaska Airlines
Sun, 07/05 (ORD) Chicago -> (SAN) San Diego
Direct

Price found 12 days ago
from $71
Frontier Airlines
Sun, 06/28 (ORD) Chicago -> (SAN) San Diego
Direct
Frontier Airlines
Tue, 07/07 (SAN) San Diego -> (ORD) Chicago
Direct

Price found 14 days ago
from $73
United
Wed, 07/29 (ORD) Chicago -> (SAN) San Diego
Direct
United
Sun, 08/02 (SAN) San Diego -> (ORD) Chicago
Direct

Price found 9 days ago
from $96
Frontier Airlines
Wed, 07/01 (ORD) Chicago -> (SAN) San Diego
Direct
Frontier Airlines
Mon, 07/06 (SAN) San Diego -> (ORD) Chicago
Direct

Price found 14 days ago
from $99
United
Tue, 07/28 (ORD) Chicago -> (SAN) San Diego
Direct
United
Sun, 08/02 (SAN) San Diego -> (ORD) Chicago
Direct

Price found 9 days ago
from $104

Info about flights from Chicago O'Hare to San Diego

Some useful info about flights from Chicago O'Hare to San Diego to help you plan your next trip

Best price last 15 days $69
Average flight duration 4h 22m
Cheapest month February
Average number of flights per week 11
First flight time 01:40
Last flight time 22:10

When is it best to fly from Chicago O'Hare to San Diego

Find out what is the best time of year to fly from Chicago O'Hare to San Diego

Jun $73
Jul $94
Aug $115
Sep $103
Oct $91
Nov $127
Dec $104
Jan $84
Feb $67
Mar $118
Apr $98
May $98
Most expensive month November
Average price $127
Cheapest month February
Average price $67
How do we get the info you see here? Please note that we offer an online comparison service and that all information and prices regarding services and/or products available on our website are provided by our third-party partners. We do our best to show you up-to-date information, but please note that we are not responsible for the completeness or accuracy of the information published, so please check all conditions carefully on the website of the partner before making a booking. Please check our Terms and Conditions for more details. Read more

Top airlines on the route Chicago O'Hare - San Diego

Airlines providing flights to San Diego from Chicago O'Hare

How much is a flight from Chicago O'Hare to San Diego?

Prices vary based on date, airline, and availability. Compare several options if you're flying between Chicago and San Diego.

$69 is the lowest fare found in the past 15 days.

Fares change often — checking several times throughout the week can make a big difference. Booking in advance often means access to lower prices for the Chicago O'Hare - San Diego route.

What are the airport options between Chicago and San Diego?

If both departure and destination cities offer multiple airports, comparing them can help you save time and money.

  • Airports in Chicago: Chicago has 3 airports - Midway, O'Hare, Rockford.
  • Airports in San Diego: Another arrival option is McClellan-Palomar.

Some airports have different terminals for low-cost and traditional airlines — knowing in advance can save time. You can filter results to see only the airports that suit you.

Flights from Chicago - O'Hare to San Diego - International

Flight filters for the route Chicago O'Hare – San Diego

Customize your search on Jetcost to focus only on flights that suit your needs. Whether you want a direct connection, specific airline, or shorter layover, filters help you find it faster.

Other popular destinations

Flights to United States are often searched alongside: Atlanta, Los Angeles, Miami, New York City, Orlando.

The cheapest flights might leave at odd hours or arrive at less central airports — keep that in mind. If you travel often, you can always select your trusted airlines from the available options.

Frequently Asked Questions

Frequently asked questions about flights from Chicago O'Hare to San Diego.

How much does an airline ticket from Chicago O'Hare to San Diego cost?

The lowest price recorded in the last 15 days for a flight from Chicago O'Hare to San Diego is $69.

How far is Chicago from San Diego?

Chicago is about 1720 mi from San Diego.

What are the airports in San Diego?

San Diego has another airport: McClellan-Palomar.

What are the airports in Chicago?

Chicago has 3 airports: Midway, O'Hare, Rockford.

What are the most popular cities in United States?

The most popular cities in United States according to our users' searches are: Atlanta, Los Angeles, Miami, New York City, Orlando.

When should I book a flight from Chicago to San Diego?

The best time to book a flight from Chicago to San Diego is 1 month in advance, while the worst time is 18 weeks in advance.

What is the cheapest month to fly from Chicago to San Diego?

The cheapest month to fly from Chicago to San Diego is February.

What is the most expensive month to fly from Chicago to San Diego?

The most expensive month to fly from Chicago to San Diego is November.

What is the best day of the week to fly from Chicago to San Diego?

For flights from Chicago to San Diego Sunday is on average the cheapest day to fly, while Wednesday is the most expensive day to fly.