United Airlines Chicago to San Diego Flights
Cheapflightsplus.com will find cheap United Airlines flights from Chicago to San Diego. Compare airline ticket prices and book air tickets starting from $172 from trusted online travel agencies, web sites and directly from airlines. Check flights schedule of United Airlines, arrivals and departure details below.
Find Cheap Airfare Chicago (IL) — San Diego (CA) by United Airlines
Cheap Flights from Chicago to San Diego by United Airlines
Price | Departure | Arrival | Flight Time | Airline | Flight |
---|---|---|---|---|---|
from $172 | 8:20 pm Chicago O'Hare International | 10:44 pm San Diego San Diego | 4h 24m | United Airlines | UA1842 |
from $358 | 7:11 am Chicago O'Hare International | 9:34 am San Diego San Diego | 4h 23m | United Airlines | UA264 |
from $197 | 5:00 am Chicago O'Hare International | 9:09 am San Diego San Diego | 6h 9m layover 1h 2m - Denver | United Airlines | UA2666 UA2309 |
from $208 | 2:40 pm Chicago O'Hare International | 8:16 pm San Diego San Diego | 7h 36m layover 1h 24m - San Francisco | United Airlines | UA1577 UA2633 |
from $229 | 6:00 am Chicago O'Hare International | 10:52 am San Diego San Diego | 6h 52m layover 0h 40m - Houston | United Airlines | UA468 UA2491 |
from $242 | 2:35 pm Chicago O'Hare International | 8:38 pm San Diego San Diego | 8h 3m layover 2h 47m - Denver | United Airlines | UA503 UA540 |
from $242 | 1:04 pm Chicago O'Hare International | 5:32 pm San Diego San Diego | 6h 28m layover 1h 22m - Denver | United Airlines | UA622 UA1281 |
from $243 | 4:20 pm Chicago O'Hare International | 10:14 pm San Diego San Diego | 7h 54m layover 2h 38m - Denver | United Airlines | UA1801 UA1835 |
from $246 | 2:26 pm Chicago O'Hare International | 8:01 pm San Diego San Diego | 7h 35m layover 1h 15m - Houston | United Airlines | UA1314 UA743 |
from $246 | 7:10 am Chicago O'Hare International | 2:11 pm San Diego San Diego | 9h 1m layover 2h 46m - Houston | United Airlines | UA2105 UA2486 |
from $249 | 2:26 pm Chicago O'Hare International | 9:12 pm San Diego San Diego | 8h 46m layover 2h 26m - Houston | United Airlines | UA1314 UA2674 |
from $249 | 4:50 pm Chicago O'Hare International | 11:44 pm San Diego San Diego | 8h 54m layover 3h 22m - Los Angeles | United Airlines | UA1983 UA5612 |
from $256 | 12:45 pm Chicago O'Hare International | 8:01 pm San Diego San Diego | 9h 16m layover 3h 0m - Houston | United Airlines | UA2657 UA743 |
from $256 | 8:45 am Chicago O'Hare International | 12:52 pm San Diego San Diego | 6h 7m layover 0h 53m - Denver | United Airlines | UA1599 UA2412 |
from $256 | 7:10 am Chicago O'Hare International | 12:52 pm San Diego San Diego | 7h 42m layover 2h 30m - Denver | United Airlines | UA791 UA2412 |
from $298 | 8:50 am Chicago O'Hare International | 3:06 pm San Diego San Diego | 8h 16m layover 1h 56m - San Francisco | United Airlines | UA1387 UA1259 |
United Airlines Flight Schedule Chicago to San Diego
Departure | Arrival | Flight Details | Flight Time | Price |
---|---|---|---|---|
10:35 am — 5:39 pm
|
10:35 am — 1:29 pm
UA2483
United Airlines
Chicago — Houston
2h 51m stop
4:20 pm — 5:39 pm
UA2399
United Airlines
Houston — San Diego
|
9h 4m including layover |
Find flight
from$468 |
|
12:45 pm — 8:01 pm
|
12:45 pm — 3:40 pm
UA2657
United Airlines
Chicago — Houston
3h stop
6:50 pm — 8:11 pm
UA743
United Airlines
Houston — San Diego
|
9h 16m including layover |
Find flight
from$256 |
|
12:45 pm — 5:39 pm
|
12:45 pm — 3:37 pm
UA2657
United Airlines
Chicago — Houston
40m stop
4:35 pm — 5:59 pm
UA2399
United Airlines
Houston — San Diego
|
6h 54m including layover |
Find flight
from$263 |
|
1:04 pm — 5:32 pm
|
1:04 pm — 2:46 pm
UA622
United Airlines
Chicago — Denver
1h 22m stop
4:08 pm — 5:32 pm
UA1281
United Airlines
Denver — San Diego
|
6h 28m including layover |
Find flight
from$242 |
|
2:26 pm — 8:01 pm
|
2:26 pm — 5:25 pm
UA1314
United Airlines
Chicago — Houston
1h 15m stop
6:40 pm — 8:01 pm
UA743
United Airlines
Houston — San Diego
|
7h 35m including layover |
Find flight
from$246 |
|
2:26 pm — 9:12 pm
|
2:26 pm — 5:25 pm
UA1314
United Airlines
Chicago — Houston
2h 26m stop
7:59 pm — 9:20 pm
UA2674
United Airlines
Houston — San Diego
|
8h 46m including layover |
Find flight
from$249 |
|
2:35 pm — 8:38 pm
|
2:33 pm — 4:26 pm
UA503
United Airlines
Chicago — Denver
2h 47m stop
7:50 pm — 9:14 pm
UA540
United Airlines
Denver — San Diego
|
8h 3m including layover |
Find flight
from$242 |
|
2:40 pm — 8:16 pm
|
2:33 pm — 5:23 pm
UA1577
United Airlines
Chicago — San Francisco
1h 24m stop
6:55 pm — 8:36 pm
UA2633
United Airlines
San Francisco — San Diego
|
7h 36m including layover |
Find flight
from$208 |
|
2:40 pm — 10:42 pm
|
2:40 pm — 5:26 pm
UA1577
United Airlines
Chicago — San Francisco
3h 42m stop
9:08 pm — 10:42 pm
UA1074
United Airlines
San Francisco — San Diego
|
10h 2m including layover |
Find flight
from$302 |
|
4:20 pm — 10:14 pm
|
4:20 pm — 6:12 pm
UA1801
United Airlines
Chicago — Denver
2h 38m stop
9:00 pm — 10:24 pm
UA1835
United Airlines
Denver — San Diego
|
7h 54m including layover |
Find flight
from$243 |
|
4:50 pm — 11:44 pm
|
4:40 pm — 7:11 pm
UA1983
United Airlines
Chicago — Los Angeles
3h 22m stop
10:40 pm — 11:41 pm
UA5612
United Airlines
Los Angeles — San Diego
|
8h 54m including layover |
Find flight
from$249 |
|
4:50 pm — 10:42 pm
|
4:50 pm — 7:36 pm
UA1660
United Airlines
Chicago — San Francisco
1h 32m stop
9:08 pm — 10:42 pm
UA1074
United Airlines
San Francisco — San Diego
|
7h 52m including layover |
Find flight
from$299 |
|
5:00 am — 9:09 am
|
5:02 am — 6:45 am
UA2666
United Airlines
Chicago — Denver
1h 2m stop
7:50 am — 9:14 am
UA2309
United Airlines
Denver — San Diego
|
6h 9m including layover |
Find flight
from$197 |
|
6:00 am — 10:52 am
|
6:00 am — 8:50 am
UA468
United Airlines
Chicago — Houston
40m stop
9:30 am — 10:52 am
UA2491
United Airlines
Houston — San Diego
|
6h 52m including layover |
Find flight
from$229 |
|
6:00 am — 1:08 pm
|
6:00 am — 9:13 am
UA1658
United Airlines
Chicago — Newark
1h 7m stop
10:20 am — 1:08 pm
UA1856
United Airlines
Newark — San Diego
|
9h 8m including layover |
Find flight
from$468 |
|
7:10 am — 2:11 pm
|
7:10 am — 10:04 am
UA2105
United Airlines
Chicago — Houston
2h 46m stop
12:50 pm — 2:11 pm
UA2486
United Airlines
Houston — San Diego
|
9h 1m including layover |
Find flight
from$246 |
|
7:10 am — 12:52 pm
|
7:10 am — 8:58 am
UA791
United Airlines
Chicago — Denver
2h 30m stop
11:28 am — 12:52 pm
UA2412
United Airlines
Denver — San Diego
|
7h 42m including layover |
Find flight
from$256 |
|
7:11 am — 9:34 am
|
7:11 am — 9:34 am
UA264
United Airlines
Chicago — San Diego
|
4h 23m |
Find flight
from$358 |
|
7:20 am — 12:48 pm
|
7:20 am — 10:02 am
UA611
United Airlines
Chicago — San Francisco
1h 8m stop
11:10 am — 12:48 pm
UA369
United Airlines
San Francisco — San Diego
|
7h 28m including layover |
Find flight
from$259 |
|
8:20 pm — 10:44 pm
|
8:20 pm — 10:44 pm
UA1842
United Airlines
Chicago — San Diego
|
4h 24m |
Find flight
from$172 |
|
8:45 am — 12:52 pm
|
8:45 am — 10:35 am
UA1599
United Airlines
Chicago — Denver
53m stop
11:28 am — 12:52 pm
UA2412
United Airlines
Denver — San Diego
|
6h 7m including layover |
Find flight
from$256 |
|
8:50 am — 3:06 pm
|
8:50 am — 11:29 am
UA1387
United Airlines
Chicago — San Francisco
1h 56m stop
1:25 pm — 3:06 pm
UA1259
United Airlines
San Francisco — San Diego
|
8h 16m including layover |
Find flight
from$298 |
|
9:40 pm — 7:42 am
+1 day
|
9:40 pm — 0:30 am
UA2106
United Airlines
Chicago — San Francisco
5h 30m stop
6:00 am — 7:42 am
HA7014
Hawaiian Airlines
San Francisco — San Diego
|
12h 2m including layover |
Find flight
from$723 |
Flight Information
There are 2 flights by United Airlines from Chicago to San Diego every week with departures from Chicago FSS, Midway, O'Hare International, Chicago NAS, Merrill C Meigs (closed), Dupage County, Pal-Waukee. All flights arrive at San Diego, AFB, Golden Triangle Reg., Lowndes County, San Diego Regional, El Cajon, Montgomery Field, Miramar NAS, North Island NAS, Brown Field Municipal, Gillespie Field.
Departures start from 10:35 am to 9:40 pm. Nonstop flight is 4h 23m. The time difference between Chicago and San Diego is 2h.
- The fastest flight 4h 23m
- Average flight time 4h 24m
- The earliest flight 10:35 am
- The latest flight 9:40 pm
- Distance 1733 ml
The cheapest months for traveling to San Diego are june (from 162 $), august (from 172 $), july (from 183 $).
The most expensive and popular months are may (from 208 $), september (from 197 $), october (from 197 $).
The cheapest flight by United Airlines that our users were able to find is $172. This airfare is economy class on one-way UA1842 flight for August 15, 2025 leaving O'Hare International in Chicago at 8:20 pm, it includes all taxes and additional fees.
United Airlines Airplanes on the Route
List of the most popular United Airlines airplanes flying from Chicago to San Diego:
Other Popular Airlines on the Route
Besides United Airlines there are other 4 airline carriers between Chicago and San Diego. Please review schedules and prices from the most popular airlines to find the best airfare deals from Chicago to San Diego.
Nonstop flights
There are 4 direct flights every day from Chicago. Airlines and fares are below:
- AS - Alaska Airlinesfrom $249Find
Connecting Flights
List of flights with layovers (1 and more stops):
- AS - Alaska Airlinesfrom $184Find
- SY - Sun Country Airlinesfrom $179Find
- NK - Spirit Airlinesfrom $136Find
- G4 - Allegiant Airfrom $185Find
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