Flights from Chicago to San Diego

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Chicago to San Diego flight comparison made easy

Below you can see the best fares for your route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Chicago to San Diego by changing tabs
Quickest
Cheapest
Spirit Airlines
Spirit Airlines
06 Sep
ORD
4:45 am
Chicago O'Hare Intl airport
4h 27m
7:12 am
SAN
San Diego airport
Spirit Airlines
09 Sep
SAN
1:16 pm
San Diego airport
7h 47m
1 Stop
11:03 pm
ORD
Chicago O'Hare Intl airport
170 USD
Spirit Airlines
Spirit Airlines
06 Sep
ORD
4:45 am
Chicago O'Hare Intl airport
4h 27m
7:12 am
SAN
San Diego airport
Spirit Airlines
09 Sep
SAN
1:16 pm
San Diego airport
7h 47m
1 Stop
11:03 pm
ORD
Chicago O'Hare Intl airport
170 USD
Spirit Airlines
Spirit Airlines
13 Aug
ORD
5:36 am
Chicago O'Hare Intl airport
4h 18m
7:54 am
SAN
San Diego airport
Spirit Airlines
20 Aug
SAN
6:49 am
San Diego airport
4h 14m
1:03 pm
ORD
Chicago O'Hare Intl airport
179 USD
American Airlines
American Airlines
05 Oct
ORD
3:25 pm
Chicago O'Hare Intl airport
4h 13m
5:38 pm
SAN
San Diego airport
American Airlines
15 Oct
SAN
3:30 pm
San Diego airport
3h 56m
9:26 pm
ORD
Chicago O'Hare Intl airport
198 USD
United Airlines
United Airlines
01 Jun
ORD
2:53 pm
Chicago O'Hare Intl airport
4h 18m
5:11 pm
SAN
San Diego airport
United Airlines
04 Jun
SAN
3:53 pm
San Diego airport
3h 58m
9:51 pm
ORD
Chicago O'Hare Intl airport
197 USD
Alaska Airlines
Alaska Airlines
02 Sep
ORD
5:05 am
Chicago O'Hare Intl airport
4h 14m
7:19 am
SAN
San Diego airport
Alaska Airlines
07 Sep
SAN
6:00 am
San Diego airport
4h 09m
12:09 pm
ORD
Chicago O'Hare Intl airport
308 USD

How to get the cheapest flight from Chicago to San Diego

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight for your trip
CHEAPEST MONTH TO FLY
September
The cheapest time of year to fly to San Diego from Chicago is September. Most expensive is December
CHEAPEST DAY TO FLY
Tuesday
The cheapest day of the week is typically Tuesday. The most expensive is typically Sunday
CHEAPEST TIME TO FLY
at Noon
Chicago to San Diego flights are approximately 32% more expensive in the Afternoon than at Noon
CHEAPEST AIRLINE
Frontier
Frontier, Sun Country Air, and Spirit Airlines are the most popular carriers operating from Chicago to San Diego
CHEAPEST ROUTE
Chicago O'Hare Intl - San Diego
Fly from Chicago O'Hare Intl to San Diego for the best Chicago - San Diego flight prices
CHEAPEST TIME TO BOOK
33 days before
The cheapest time to buy a flight from Chicago to San Diego is approximately 33 days to departure
60
Days before departure
0

Flight information for Chicago to San Diego

Find info about flight duration, direct flights, and airports for your flight from Chicago to San Diego
Fastest flight time
4h 10m
The fastest flight from Chicago to San Diego takes 4h 10m.
Direct flights
Every day
Direct flights go from Chicago to San Diego every day.
Airports in San Diego
2 airports
There are 2 airports near San Diego: San Diego (SAN), San Diego Carlsbad-Palomar (CLD)

Alternative routes for Chicago to San Diego

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times

Flights from Chicago to:

Flights to San Diego from:

  • Chicago
  • Illinois
  • United States
  • North America