SAN

Find cheap United Airlines flights to San Diego from $39

1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap United Airlines Flight Deals to San Diego

 
Here are some of the best deals found on KAYAK recently from United Airlines to San Diego that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip United Airlines flight deals to San Diego

Wed, Feb 18 - Fri, Feb 27
United Airlines Logo
7:45 am - 9:24 am
DEN
-
SAN
2h 39mnonstop
United Airlines Logo
6:30 am - 9:58 am
SAN
-
DEN
2h 28mnonstop
$97United Airlines
Sat, Feb 14 - Wed, Feb 18
United Airlines Logo
7:06 pm - 8:49 pm
SFO
-
SAN
1h 43mnonstop
United Airlines Logo
11:57 am - 1:44 pm
SAN
-
SFO
1h 47mnonstop
$116United Airlines
Sun, Feb 22 - Wed, Feb 25
United Airlines Logo
7:45 am - 9:24 am
DEN
-
SAN
2h 39mnonstop
United Airlines Logo
9:00 am - 12:28 pm
SAN
-
DEN
2h 28mnonstop
$117United Airlines
Fri, Feb 20 - Fri, Feb 27
United Airlines Logo
7:00 am - 8:40 am
SFO
-
SAN
1h 40mnonstop
United Airlines Logo
6:15 am - 8:05 am
SAN
-
SFO
1h 50mnonstop
$117United Airlines
Thu, Feb 26 - Sun, Mar 1
United Airlines Logo
8:59 am - 10:39 am
SFO
-
SAN
1h 40mnonstop
United Airlines Logo
6:15 am - 8:05 am
SAN
-
SFO
1h 50mnonstop
$123United Airlines
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
8:59 am - 10:39 am
SFO
-
SAN
1h 40mnonstop
United Airlines Logo
9:54 am - 11:44 am
SAN
-
SFO
1h 50mnonstop
$124United Airlines
Mon, Feb 16 - Thu, Feb 19
United Airlines Logo
7:00 am - 8:40 am
SFO
-
SAN
1h 40mnonstop
United Airlines Logo
9:54 am - 11:44 am
SAN
-
SFO
1h 50mnonstop
$126United Airlines
Fri, Feb 27 - Sun, Mar 1
United Airlines Logo
7:00 am - 8:40 am
SFO
-
SAN
1h 40mnonstop
United Airlines Logo
6:15 am - 8:05 am
SAN
-
SFO
1h 50mnonstop
$133United Airlines
Fri, Feb 27 - Mon, Mar 2
United Airlines Logo
10:50 pm - 12:29 am
SFO
-
SAN
1h 39mnonstop
United Airlines Logo
9:54 am - 11:44 am
SAN
-
SFO
1h 50mnonstop
$134United Airlines
Thu, Feb 26 - Fri, Feb 27
United Airlines Logo
8:59 am - 10:39 am
SFO
-
SAN
1h 40mnonstop
United Airlines Logo
6:10 pm - 11:04 pm
SAN
-
SFO
4h 54m
1 stop
$136United Airlines
Useful Info

Good to know

Low seasonDecember
Cheapest flight$39
Average price round-trip$417
Good deal round-trip$364
Good deal one-way$473
Best time to beat the crowds but there is an average 14% increase in price.
Flight from Denver to San Diego
(avg. price over the last 2 weeks)
or less
or less

When to book flights with United Airlines to San Diego

Average price per month
Flight prices as travel date approaches

FAQs for flying to San Diego with United Airlines

  • Which other airlines fly to San Diego?

    Along with United Airlines, you can also fly to San Diego with Alaska Airlines, Frontier, Southwest, American Airlines, Breeze Airways, Alaska Airlines and Delta.

  • Which airport do United Airlines flights to San Diego fly into?

    You’ll fly into San Diego Airport when flying to San Diego with United Airlines.

  • Are there any other airlines in Star Alliance that fly to San Diego?

    Unfortunately, there are no other airlines in Star Alliance that fly to San Diego.

Top tips for your flights to San Diego with United Airlines

  • If you’re intending to fly with United Airlines, book your flight to San Diego at least 2 weeks before departure to ensure a below-average price.
  • High season for flights to San Diego with United Airlines is March and prices are highest at this time. The cheapest month to fly is December.

United Airlines customer reviews

7.4
Good9,200 verified ratings
6.6Food
7.3Comfort
8.1Crew
7.1Entertainment
7.7Boarding
Traveler rating:
Sort by:
G
10.0 Wonderful
Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system
A
10.0 Wonderful
Great snacks and roomy seats.
C
8.0 Very good
Good
A
4.0 Mediocre
Unfortunately weather delayed our flight waiting for our plane to arrive and due to a little snow time was needed to deice the plane so departure was very delayed and I missed the connecting flight
A
10.0 Wonderful
Consummate professionals and right on time!!
A
10.0 Wonderful
Was great
Y
2.0 Poor
no air to briad, wos very hot.
N
10.0 Wonderful
Good
N
10.0 Wonderful
Good
A
10.0 Wonderful
Flight attendant had positive attitude.
Read more about United Airlines

Everything you need to know for your flight to San Diego

Other airlines flying to San Diego

Flight deals from the most popular airlines with KAYAK users flying the route
Alaska Airlines flights to San Diego
Frontier flights to San Diego
American Airlines flights to San Diego
Southwest flights to San Diego
Delta flights to San Diego