SAN

Find cheap United Airlines flights to San Diego from $59

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

Sat, Apr 25 - Sun, May 3
United Airlines Logo
8:00 pm - 9:32 pm
DEN
-
SAN
2h 32mnonstop
United Airlines Logo
6:32 am - 10:09 am
SAN
-
DEN
2h 37mnonstop
$117United Airlines
Tue, Apr 14 - Tue, Apr 21
United Airlines Logo
1:50 pm - 3:39 pm
SFO
-
SAN
1h 49mnonstop
United Airlines Logo
1:20 pm - 3:06 pm
SAN
-
SFO
1h 46mnonstop
$117United Airlines
Sat, Apr 11 - Mon, Apr 13
United Airlines Logo
7:00 am - 8:44 am
SFO
-
SAN
1h 44mnonstop
United Airlines Logo
6:20 am - 10:49 am
SAN
-
SFO
4h 29m
1 stop
$127United Airlines
Sat, Apr 11 - Sat, Apr 11
United Airlines Logo
7:45 am - 9:16 am
DEN
-
SAN
2h 31mnonstop
United Airlines Logo
4:09 pm - 7:40 pm
SAN
-
DEN
2h 31mnonstop
$137United Airlines
Sat, Apr 11 - Wed, Apr 15
United Airlines Logo
4:45 pm - 6:40 pm
SFO
-
SAN
1h 55mnonstop
United Airlines Logo
7:20 am - 9:06 am
SAN
-
SFO
1h 46mnonstop
$137United Airlines
Thu, Apr 9 - Mon, Apr 13
United Airlines Logo
10:40 pm - 12:29 am
SFO
-
SAN
1h 49mnonstop
United Airlines Logo
6:20 am - 10:49 am
SAN
-
SFO
4h 29m
1 stop
$147United Airlines
Tue, Apr 7 - Fri, Apr 10
United Airlines Logo
8:45 pm - 10:38 pm
SFO
-
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1h 53mnonstop
United Airlines Logo
6:20 am - 10:49 am
SAN
-
SFO
4h 29m
1 stop
$148United Airlines
Sat, Apr 11 - Wed, Apr 15
United Airlines Logo
5:15 am - 9:54 am
DEN
-
SAN
5h 39m
1 stop
United Airlines Logo
7:14 pm - 10:45 pm
SAN
-
DEN
2h 31mnonstop
$157United Airlines
Sat, Apr 11 - Sat, Apr 18
United Airlines Logo
6:00 am - 10:20 am
SFO
-
SAN
4h 20m
1 stop
United Airlines Logo
5:00 pm - 8:14 pm
SAN
-
SFO
3h 14m
1 stop
$157United Airlines
Fri, Apr 10 - Fri, Apr 17
United Airlines Logo
10:40 pm - 12:29 am
SFO
-
SAN
1h 49mnonstop
United Airlines Logo
6:36 am - 8:24 am
SAN
-
SFO
1h 48mnonstop
$158United Airlines
Useful Info

Good to know

Low seasonDecember
Cheapest flight$59
Average price round-trip$362
Good deal one-way$746
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly with an average 6% increase in price.
Flight from Denver to San Diego
(avg. price over the last 2 weeks)
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, Southwest, Breeze Airways, Breeze Airways, Alaska Airlines, Delta and American Airlines.

  • 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
Good9,435 verified ratings
8.1Crew
7.1Entertainment
7.7Boarding
6.6Food
7.3Comfort
Traveler rating:
Sort by:
A
2.0 Poor
I lost my bag
J
6.0 Okay
OK, we were delayed and had to de plane and reboard.
J
10.0 Wonderful
Food was not good.
A
10.0 Wonderful
United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.
M
2.0 Poor
Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.
M
2.0 Poor
Hopped on time for the flight only to get deplaned and delayed another 2.5 hours.
P
2.0 Poor
bad bad customer service
P
2.0 Poor
Terrible experience! delay 2 time and say i dont have ticket
A
4.0 Mediocre
Both my flight where delayed Had 25min to make it to my transfer flight
A
6.0 Okay
Would've been great if Lufthansa union cockpit pilots didn't strike for 2 days and caused a chaos to my returning plans to USA, and then after rebooking a flight 2 days later tge plane departed 35 min later. So I did not have a good experience.
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
Frontier flights to San Diego
Southwest flights to San Diego
Alaska Airlines flights to San Diego
Delta flights to San Diego
American Airlines flights to San Diego