United Airlines Chicago to San Diego Flights

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Cheapflightsplus.com will find cheap United Airlines flights from Chicago to San Diego. Compare airline ticket prices and book air tickets starting from $119 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

To find cheap tickets choose a day of your departure with attractive price on the graph below and click «Find flights». For round trip flights please click «Check prices for return flight». The cheapest airfare is in june: one-way - $119, two-way – $204.

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Cheap Flights from Chicago to San Diego by United Airlines

Look at the list of plane tickets for the most popular direct and connecting flights by United Airlines, their prices start from $119. The fastest nonstop flight takes 4h 20m. The fastest connecting flight — 6h 7m.

Price	Departure	Arrival	Flight Time	Airline	Flight
from $119 Find flight	8:20 pm Chicago O'Hare International	10:44 pm San Diego San Diego	4h 24m	United Airlines	UA1842
from $126 Find flight	1:30 pm Chicago O'Hare International	3:50 pm San Diego San Diego	4h 20m	United Airlines	UA2683
from $126 Find flight	4:00 pm Chicago O'Hare International	6:20 pm San Diego San Diego	4h 20m	United Airlines	UA2417
from $126 Find flight	9:13 am Chicago O'Hare International	11:40 am San Diego San Diego	4h 27m	United Airlines	UA660
from $126 Find flight	7:10 am Chicago O'Hare International	9:30 am San Diego San Diego	4h 20m	United Airlines	UA542
from $126 Find flight	7:11 am Chicago O'Hare International	9:34 am San Diego San Diego	4h 23m	United Airlines	UA2071
from $127 Find flight	7:35 pm Chicago O'Hare International	10:02 pm San Diego San Diego	4h 27m	United Airlines	UA734
from $135 Find flight	7:11 am Chicago O'Hare International	9:34 am San Diego San Diego	4h 23m	United Airlines	UA2237
from $150 Find flight	7:15 am Chicago O'Hare International	9:38 am San Diego San Diego	4h 23m	United Airlines	UA470
from $178 Find flight	7:11 am Chicago O'Hare International	9:34 am San Diego San Diego	4h 23m	United Airlines	UA1610
from $144 Find flight	3:58 pm Chicago O'Hare International	9:41 pm San Diego San Diego	7h 43m layover 1h 24m - Houston	United Airlines	UA592 UA2638
from $144 Find flight	5:00 am Chicago O'Hare International	9:09 am San Diego San Diego	6h 9m layover 1h 4m - Denver	United Airlines	UA2666 UA2309
from $144 Find flight	6:00 am Chicago O'Hare International	10:55 am San Diego San Diego	6h 55m layover 0h 41m - Houston	United Airlines	UA256 UA2491
from $144 Find flight	7:10 am Chicago O'Hare International	12:57 pm San Diego San Diego	7h 47m layover 2h 38m - Denver	United Airlines	UA791 UA1940
from $168 Find flight	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 $194 Find flight	9:13 pm Chicago O'Hare International	7:55 am+1 день San Diego San Diego	12h 42m layover 6h 16m - San Francisco	United Airlines	UA2106 UA1712

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*Departure and arrival times are local. Prices are for one-way flights. Information refreshed on 06/06/2025

United Airlines Flight Schedule Chicago to San Diego

Below is a detailed 2025 flight schedule for today, tomorrow and all other days. It may vary depending on season and a day of the week of your desired trip. We recommend booking your itinerary at least 2 weeks prior your travel to get the best price and availability by the airline.

Departure	Flight Details	Flight Time	Price
1:30 pm — 3:50 pm	1:30 pm — 3:50 pm UA2683 United Airlines Chicago — San Diego	4h 20m	Find flight from$126
4:00 pm — 6:20 pm	4:00 pm — 6:20 pm UA2417 United Airlines Chicago — San Diego	4h 20m	Find flight from$126
7:10 am — 9:30 am	7:10 am — 9:30 am UA542 United Airlines Chicago — San Diego	4h 20m	Find flight from$126
7:11 am — 9:34 am	7:11 am — 9:34 am UA2071 United Airlines Chicago — San Diego	4h 23m	Find flight from$126
7:11 am — 9:34 am	7:11 am — 9:34 am UA2237 United Airlines Chicago — San Diego	4h 23m	Find flight from$135
7:11 am — 9:34 am	7:11 am — 9:34 am UA1610 United Airlines Chicago — San Diego	4h 23m	Find flight from$178
7:15 am — 9:38 am	7:15 am — 9:38 am UA470 United Airlines Chicago — San Diego	4h 23m	Find flight from$150
7:35 pm — 10:02 pm	7:35 pm — 10:02 pm UA734 United Airlines Chicago — San Diego	4h 27m	Find flight from$127
7:50 pm — 10:14 pm	7:50 pm — 10:14 pm UA630 United Airlines Chicago — San Diego	4h 24m	Find flight from$150
8:20 pm — 10:44 pm	8:20 pm — 10:44 pm UA1842 United Airlines Chicago — San Diego	4h 24m	Find flight from$119
9:13 am — 11:40 am	9:13 am — 11:40 am UA660 United Airlines Chicago — San Diego	4h 27m	Find flight from$126
10:35 am — 3:44 pm	10:35 am — 1:29 pm UA2483 United Airlines Chicago — Houston 51m stop 2:20 pm — 3:44 pm UA1581 United Airlines Houston — San Diego	7h 9m including layover	Find flight from$144
10:49 am — 4:30 pm	10:49 am — 1:35 pm UA343 United Airlines Chicago — San Francisco 1h 17m stop 2:52 pm — 4:30 pm UA1142 United Airlines San Francisco — San Diego	7h 41m including layover	Find flight from$151
12:53 pm — 6:23 pm	12:53 pm — 3:30 pm UA2465 United Airlines Chicago — San Francisco 1h 15m stop 4:45 pm — 6:23 pm UA1434 United Airlines San Francisco — San Diego	7h 30m including layover	Find flight from$151
12:55 pm — 5:24 pm	12:55 pm — 2:37 pm UA1484 United Airlines Chicago — Denver 1h 26m stop 4:03 pm — 5:24 pm UA1281 United Airlines Denver — San Diego	6h 29m including layover	Find flight from$144
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$177
2:20 pm — 8:04 pm	2:20 pm — 5:16 pm UA2621 United Airlines Chicago — Houston 1h 24m stop 6:40 pm — 8:04 pm UA1373 United Airlines Houston — San Diego	7h 44m including layover	Find flight from$144
2:53 pm — 8:25 pm	2:53 pm — 4:35 pm UA664 United Airlines Chicago — Denver 2h 25m stop 7:00 pm — 8:25 pm UA540 United Airlines Denver — San Diego	7h 32m including layover	Find flight from$155
3:40 pm — 7:51 pm	3:40 pm — 6:08 pm UA2124 United Airlines Chicago — Los Angeles 42m stop 6:50 pm — 7:51 pm UA5415 United Airlines Los Angeles — San Diego	6h 11m including layover	Find flight from$144
3:58 pm — 9:41 pm	3:58 pm — 6:53 pm UA592 United Airlines Chicago — Houston 1h 24m stop 8:17 pm — 9:41 pm UA2638 United Airlines Houston — San Diego	7h 43m including layover	Find flight from$144
4:10 pm — 8:25 pm	4:20 pm — 6:12 pm UA1801 United Airlines Chicago — Denver 1h 4m stop 7:50 pm — 9:14 pm UA540 United Airlines Denver — San Diego	6h 15m including layover	Find flight from$144
5:00 am — 9:09 am	5:02 am — 6:45 am UA2666 United Airlines Chicago — Denver 1h 4m stop 7:50 am — 9:14 am UA2309 United Airlines Denver — San Diego	6h 9m including layover	Find flight from$144
5:00 am — 12:52 pm	5:00 am — 6:43 am UA2666 United Airlines Chicago — Denver 4h 45m stop 11:28 am — 12:52 pm UA2412 United Airlines Denver — San Diego	9h 52m including layover	Find flight from$195
6:00 am — 10:55 am	6:00 am — 8:50 am UA256 United Airlines Chicago — Houston 41m stop 9:31 am — 10:55 am UA2491 United Airlines Houston — San Diego	6h 55m including layover	Find flight from$144
6:25 pm — 11:36 pm	6:25 pm — 8:57 pm UA1967 United Airlines Chicago — Los Angeles 1h 35m stop 10:40 pm — 11:41 pm UA5612 United Airlines Los Angeles — San Diego	7h 11m including layover	Find flight from$151
8:52 am — 2:54 pm	8:52 am — 11:55 am UA1068 United Airlines Chicago — Washington D.C. 45m stop 12:40 pm — 2:54 pm UA2736 United Airlines Washington D.C. — San Diego	8h 2m including layover	Find flight from$168
9:17 pm — 9:09 am +1 day	9:17 pm — 11:03 pm UA2296 United Airlines Chicago — Denver 8h 42m stop 7:45 am — 9:09 am UA2309 United Airlines Denver — San Diego	13h 52m including layover	Find flight from$186

Departure	Arrival	Flight Details	Flight Time	Price
		stop stop	including layover	Find flight from$

*Departure and arrival times are local. Last updated on 06/06/2025

Flight Information

There are 11 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 9:50 pm. Nonstop flight is 4h 20m. The time difference between Chicago and San Diego is 2h.

The fastest flight 4h 20m
Average flight time 4h 23m
The earliest flight 10:35 am
The latest flight 9:50 pm
Distance 1733 ml

The cheapest months for traveling to San Diego are june (from 159 $), october (from 168 $), september (from 168 $).

The most expensive and popular months are november (from 408 $), january (from 367 $), december (from 349 $).

The cheapest flight by United Airlines that our users were able to find is $119. This airfare is economy class on one-way UA1842 flight for June 28, 2025 leaving O'Hare International in Chicago at 8:20 pm, it includes all taxes and additional fees.

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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 7 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 26 direct flights every day from Chicago. Airlines and fares are below:

AS - Alaska Airlines

from $94

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F9 - Frontier Airlines

from $68

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HA - Hawaiian Airlines

from $92

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Connecting Flights

List of flights with layovers (1 and more stops):

AS - Alaska Airlines

from $102

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F9 - Frontier Airlines

from $69

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SY - Sun Country Airlines

from $115

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HA - Hawaiian Airlines

from $96

Find
TP - TAP Portugal

from $1112

Find
NK - Spirit Airlines

from $72

Find
G4 - Allegiant Air

from $100

Find

See more connecting flights

How to book an air ticket yourself?

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