SAN

Find cheap United Airlines flights to San Diego from $59

1 adult
1 adult, Economy, 0 bags

Search hundreds of travel sites at once for deals on United Airlines flights to San Diego

Travelers love KAYAK
41 299 237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Useful Info
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

Thu, Mar 5 - Sun, Mar 15
United Airlines Logo
7:45 am - 9:20 am
DEN
-
SAN
2h 35mnonstop
United Airlines Logo
6:30 am - 9:58 am
SAN
-
DEN
2h 28mnonstop
$117United Airlines
Wed, Mar 11 - Sun, Mar 15
United Airlines Logo
11:00 am - 12:44 pm
SFO
-
SAN
1h 44mnonstop
United Airlines Logo
6:15 am - 8:05 am
SAN
-
SFO
1h 50mnonstop
$117United Airlines
Mon, Mar 30 - Tue, Mar 31
United Airlines Logo
6:00 am - 10:20 am
SFO
-
SAN
4h 20m
1 stop
United Airlines Logo
9:46 am - 11:32 am
SAN
-
SFO
1h 46mnonstop
$127United Airlines
Sat, Mar 21 - Tue, Mar 24
United Airlines Logo
10:35 pm - 12:14 am
SFO
-
SAN
1h 39mnonstop
United Airlines Logo
4:00 pm - 5:47 pm
SAN
-
SFO
1h 47mnonstop
$136United Airlines
Thu, Mar 12 - Thu, Mar 19
United Airlines Logo
7:00 am - 8:40 am
SFO
-
SAN
1h 40mnonstop
United Airlines Logo
7:55 am - 9:45 am
SAN
-
SFO
1h 50mnonstop
$137United Airlines
Thu, Mar 5 - Sun, Mar 8
United Airlines Logo
7:45 am - 9:20 am
DEN
-
SAN
2h 35mnonstop
United Airlines Logo
6:30 am - 9:58 am
SAN
-
DEN
2h 28mnonstop
$138United Airlines
Sat, Mar 14 - Tue, Apr 7
United Airlines Logo
7:00 am - 8:40 am
SFO
-
SAN
1h 40mnonstop
United Airlines Logo
11:00 am - 12:46 pm
SAN
-
SFO
1h 46mnonstop
$138United Airlines
Sat, Mar 7 - Sun, Mar 8
United Airlines Logo
10:35 pm - 12:14 am
SFO
-
SAN
1h 39mnonstop
United Airlines Logo
6:15 am - 8:05 am
SAN
-
SFO
1h 50mnonstop
$140United Airlines
Mon, Mar 16 - Wed, Mar 18
United Airlines Logo
7:00 am - 8:40 am
SFO
-
SAN
1h 40mnonstop
United Airlines Logo
11:03 am - 5:05 pm
SAN
-
SFO
6h 02m
1 stop
$142United Airlines
Mon, Mar 9 - Wed, Mar 11
United Airlines Logo
3:57 pm - 7:48 pm
SFO
-
SAN
3h 51m
1 stop
United Airlines Logo
11:57 am - 1:44 pm
SAN
-
SFO
1h 47mnonstop
$144United Airlines
Useful Info

Good to know

Low seasonDecember
Cheapest flight$59
Average price round-trip$452
Good deal round-trip$384
Good deal one-way$386
Best time to beat the crowds but there is an average 13% increase in price.
Most popular time to fly with an average 4% 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, Alaska Airlines, Southwest, Frontier, Delta and Breeze Airways.

  • How much is a flight to San Diego with United Airlines?

    On average, United Airlines flights to San Diego cost $296 one-way.

  • 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

  • The cheapest flight to San Diego with United Airlines found on KAYAK in the last 2 weeks departed from Houston George Bush Intcntl Airport and cost $148.
  • 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
Good9,289 verified ratings
7.1Entertainment
8.1Crew
7.7Boarding
6.6Food
7.3Comfort
Traveler rating:
Sort by:
S
2.0 Poor
The crew made our experience extremely bad. They were rude and didn’t have anything for kids.
S
10.0 Wonderful
Very old flight - time to retire it for newer airplanes
M
2.0 Poor
2+ hours delayed Outlet in row 12 did not work Tv monitors did not work Lights kept off the entire flight for at 5pm-7pm flight
C
2.0 Poor
Flight landed 2 hours late
A
10.0 Wonderful
No real complaints. The in flight food was much better than I expected. The in flight entertainment was excellent.
M
10.0 Wonderful
From pre boarding to flight attendant, crew and baggage handler, excellent. Didn’t lost my luggage like West jet.
A
2.0 Poor
Very disappointing given gate agent behavior. Filed a formal complaint with United.
I
6.0 Okay
Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.
D
8.0 Very good
Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.
D
2.0 Poor
Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.
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
Delta flights to San Diego
Southwest flights to San Diego
Alaska Airlines flights to San Diego
American Airlines flights to San Diego