Flights from Chicago to San Diego

Our cheapest offers for flights from Chicago to San Diego

Here you can compare cheap flights from Chicago (CHI) to San Diego (SAN) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to San Diego. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Chicago
San Diego
Outbound
04/21/25
1 Stopover (DEN)
F93173, F92421
28h 55min
Return
05/19/25
1 Stopover (DEN)
F92818, F93174
15h 20min
Frontier Airlines ?
$148
Best option
Chicago
San Diego
Outbound
06/08/25
direct
AA1861
04h 22min
Return
06/29/25
direct
F91856
04h 03min
American Airlines ?
$275
Chicago
San Diego
Outbound
06/08/25
1 Stopover (DEN)
F91483, F92817
06h 04min
Return
06/12/25
1 Stopover (DFW)
F91426, F91342
09h 41min
Frontier Airlines
$239
Chicago
San Diego
Outbound
06/08/25
1 Stopover (LAS)
NK2179, NK2502
12h 11min
Return
06/29/25
direct
F91856
04h 03min
Spirit Airlines
$249
Chicago
San Diego
Outbound
06/08/25
1 Stopover (DEN)
F91483, F92817
06h 04min
Return
06/12/25
1 Stopover (DFW)
F91426, F91342
09h 41min
Frontier Airlines
$250
Chicago
San Diego
Outbound
06/18/25
1 Stopover (LAS)
NK0183, NK3791
29h 11min
Return
07/15/25
1 Stopover (LAS)
NK3792, NK0184
06h 33min
Spirit Airlines
$281
Chicago
San Diego
Outbound
06/18/25
2 Stopovers (ATL, LAS)
DL1264, DL0824, AS3336
12h 24min
Return
07/15/25
2 Stopovers (LAS, DTW)
AS3314, DL0851, DL1085
21h 12min
Delta Air Lines, Alaska Airlines ?
$289
Chicago
San Diego
Outbound
06/08/25
1 Stopover (LAS)
NK2620, NK2020
10h 03min
Return
06/29/25
direct
F91856
04h 03min
Spirit Airlines ?
$291
Chicago
San Diego
Outbound
06/08/25
2 Stopovers (LAX, LAS)
NK2544, NK2509, NK2502
24h 36min
Return
06/29/25
1 Stopover (MSP)
SY1640, SY0261
10h 07min
Spirit Airlines
$291
Chicago
San Diego
Outbound
06/08/25
1 Stopover (LAS)
NK2179, NK2502
12h 11min
Return
06/29/25
1 Stopover (LAS)
NK2296, NK2186
07h 52min
Spirit Airlines
$292
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Chicago to San Diego

Favorite airline: Spirit Airlines
The favorite airline for flights from Chicago to San Diego is Spirit Airlines.
Spirit Airlines
34 %
Alaska Airlines
22 %
United Airlines
22 %
Direct flights are more expensive
On this route, direct flights are $179.00 more expensive than flights with a stopover.
non stop flight
1 stop
04h 15min
14h 15min
$ 352
$ 173
Favourite connection: via Las Vegas
The most popular route is via Las Vegas and is booked by 36 % of all travelers.
Route
bookings
1 stopover Las Vegas - McCarran International Airport, NV
14h 15min, from $ 173
36 %
Direct flights
04h 15min, from $ 352
28 %
1 stopover San Francisco International Airport, CA
12h 42min, from $ 421
15 %

Important flight information

Flight information: Chicago - San Diego

Roundtrip from $ 147,63
Flight duration min. 04:22 / max. 11:10
Return flight duration min. 03:50/ max. 06:30
Distance 2791 km
Flights per week 110
Departure airport Airport Chicago-IL all Airports (ORD, MDW, RFD) (CHI)
Arrival airport Airport San Diego - Lindberg Field International, CA (SAN)
Destination country Flights to United States
Alternative routes to United States
Alternative flights to San Diego
Flight destinations with a similar price