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Cheap flights from Chicago to San Diego
Easily compare round-trip flights from Chicago to San Diego
Below you can see the best fares for your round-trip flight 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
25 Jan
5:20 am
ORD
Chicago O'Hare Intl airport
4h 36m
SAN
7:56 am
San Diego airport
01 Feb
6:50 am
SAN
San Diego airport
4h 02m
ORD
12:52 pm
Chicago O'Hare Intl airport
$117
American Airlines
29 Jan
11:15 am
ORD
Chicago O'Hare Intl airport
4h 29m
SAN
1:44 pm
San Diego airport
01 Feb
6:50 am
SAN
San Diego airport
4h 02m
ORD
12:52 pm
Chicago O'Hare Intl airport
$119
Spirit Airlines
11 Jan
5:20 am
ORD
Chicago O'Hare Intl airport
4h 36m
SAN
7:56 am
San Diego airport
14 Jan
11:41 pm
SAN
San Diego airport
4h 08m
ORD
5:49 am
+1
Chicago O'Hare Intl airport
$119
United Airlines
30 Mar
2:45 am
ORD
Chicago O'Hare Intl airport
4h 31m
SAN
5:16 am
San Diego airport
06 Apr
3:45 pm
SAN
San Diego airport
3h 57m
ORD
9:42 pm
Chicago O'Hare Intl airport
$238
American Airlines
29 Jan
11:15 am
ORD
Chicago O'Hare Intl airport
4h 29m
SAN
1:44 pm
San Diego airport
01 Feb
6:50 am
SAN
San Diego airport
4h 02m
ORD
12:52 pm
Chicago O'Hare Intl airport
$119
American Airlines
29 Jan
11:15 am
ORD
Chicago O'Hare Intl airport
4h 29m
SAN
1:44 pm
San Diego airport
31 Jan
6:50 am
SAN
San Diego airport
4h 02m
ORD
12:52 pm
Chicago O'Hare Intl airport
$136
How to get the cheapest flight ticket 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 ticket for your trip
What is the cheapest month to fly to San Diego?
May
The cheapest time of year to fly to San Diego from Chicago is May. Most expensive is December
What is the cheapest day to fly to San Diego?
Tuesday
The cheapest day of the week is typically Tuesday. The most expensive is typically Sunday
When is the cheapest time to fly to San Diego?
at noon
Chicago to San Diego flights are approximately 20% more expensive in the afternoon than at noon
What is the cheapest airline that flies to San Diego?
Frontier
Frontier, Spirit Airlines, and Delta are the most popular carriers operating from Chicago to San Diego
What is the 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
When is the cheapest time to book a flight to San Diego?
36 days before
The cheapest time to buy a flight from Chicago to San Diego is approximately 36 days to departure
60
Days before departure
0
Flight information for Chicago to San Diego (SAN - CHI)
Find info about flight duration, direct flights, and airports for your flight from Chicago to San Diego
| Fastest flight time | 4h 20m | The fastest flight from Chicago to San Diego takes 4h 20m. | |
| 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
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Flights from Chicago to:
Flights to other cities in United States
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Round-trip flights to other destinations
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*Flight prices to San Diego are based on prices for economy tickets found by momondo users during searches within the last 72 hours. These prices may no longer be available.