Chicago to San Diego

ORDSAN

Fly from Chicago to San Diego starting at USD 80 with Frontier Airlines.Best fare available on Aug 18, 2026.Limited seats. Better plans. Book before it's gone.

Chicago to San Diego cheapest flights this week

14 Aug
Alaska Airlines
06:20ORD
10:54SAN
DirectUSD 168VIEW DEAL
15 Aug
Frontier Airlines
07:29ORD
22:06SAN
1 StopUSD 136VIEW DEAL
15 Aug
Frontier Airlines
21:57ORD
11:10SAN
1 StopUSD 155VIEW DEAL
15 Aug
Alaska Airlines
06:20ORD
10:54SAN
DirectUSD 159VIEW DEAL
17 Aug
Frontier Airlines
21:57ORD
11:05SAN
1 StopUSD 178VIEW DEAL
18 Aug
Frontier Airlines
14:41ORD
01:51SAN
1 StopUSD 80VIEW DEAL
18 Aug
Frontier Airlines
09:20ORD
17:41SAN
1 StopUSD 120VIEW DEAL
20 Aug
Frontier Airlines
14:41ORD
01:51SAN
1 StopUSD 87VIEW DEAL
20 Aug
Frontier Airlines
09:20ORD
17:41SAN
1 StopUSD 164VIEW DEAL
2 Sept
Frontier Airlines
09:20ORD
17:41SAN
1 StopUSD 102VIEW DEAL

Chicago to San Diego monthly flight fare trend

Aug
from USD 80
Sep
from USD 100
Oct
from USD 116
Nov
No flights
Dec
from USD 153
Jan
No flights

Airport Details

Origin

Chicago

Chicago O'Hare International Airport (ORD)

Chicago, ORD
Zone

Chicago

Elev

680 ft

Destination

San Diego

San Diego International Airport (SAN)

San Diego, SAN
Zone

Los Angeles

Elev

17 ft

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