SAN

Find cheap United Airlines flights to San Diego from $79

1 adult

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 22% 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.

Flights Deals
Useful Info
Flights 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.

Recent round-trip United Airlines flight deals to San Diego

KAYAK's recommended round-trip United Airlines deals departing in the coming months to San Diego.
Discover the best prices for you by selecting your travel dates on KAYAK.
United Airlines Logo
10:35 pm - 12:15 amSFO-SAN
1h 40mnonstop
United Airlines Logo
6:20 am - 7:58 amSAN-SFO
1h 38mnonstop
$83United Airlines
Find Deal
Wed, Jul 16 - Fri, Jul 18
United Airlines Logo
7:15 am - 8:51 amSFO-SAN
1h 36mnonstop
United Airlines Logo
6:20 am - 7:58 amSAN-SFO
1h 38mnonstop
$97United Airlines
Find Deal
Sun, May 18 - Fri, May 23
United Airlines Logo
6:45 pm - 11:41 pmSFO-SAN
4h 56m1 stop
United Airlines Logo
10:43 am - 12:20 pmSAN-SFO
1h 37mnonstop
$107United Airlines
Find Deal
Wed, May 28 - Thu, May 29
United Airlines Logo
10:35 pm - 12:15 amSFO-SAN
1h 40mnonstop
United Airlines Logo
6:15 am - 9:41 amSAN-SFO
3h 26m1 stop
$112United Airlines
Find Deal
Sat, Jun 28 - Tue, Jul 8
United Airlines Logo
10:35 pm - 12:15 amSFO-SAN
1h 40mnonstop
United Airlines Logo
7:21 pm - 9:00 pmSAN-SFO
1h 39mnonstop
$113United Airlines
Find Deal
Sat, Aug 9 - Wed, Aug 20
United Airlines Logo
10:40 pm - 12:23 amSFO-SAN
1h 43mnonstop
United Airlines Logo
5:58 pm - 7:43 pmSAN-SFO
1h 45mnonstop
$117United Airlines
Find Deal
Sat, May 17 - Tue, May 20
United Airlines Logo
9:06 pm - 10:45 pmSFO-SAN
1h 39mnonstop
United Airlines Logo
9:42 am - 11:20 amSAN-SFO
1h 38mnonstop
$118United Airlines
Find Deal
Thu, May 22 - Sun, May 25
United Airlines Logo
7:10 pm - 8:50 pmSFO-SAN
1h 40mnonstop
United Airlines Logo
2:21 pm - 7:05 pmSAN-SFO
4h 44m1 stop
$123United Airlines
Find Deal
Sat, Aug 9 - Wed, Aug 20
United Airlines Logo
10:40 pm - 12:23 amSFO-SAN
1h 43mnonstop
United Airlines Logo
7:25 pm - 12:07 amSAN-SFO
4h 42m1 stop
$127United Airlines
Find Deal
Wed, May 14 - Sat, May 17
United Airlines Logo
6:00 am - 9:35 amSFO-SAN
3h 35m1 stop
United Airlines Logo
7:45 am - 9:27 amSAN-SFO
1h 42mnonstop
$141United Airlines
Find Deal
Fri, May 16 - Sat, May 17
Useful Info

Good to know

Low seasonJanuary
High seasonJuly
Cheapest flight$79
Average price round-trip$1,105
Good deal round-trip$849
Good deal one-way$589
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from San Francisco 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 Southwest, Allegiant Air, Hawaiian Airlines, Alaska Airlines, Breeze Airways, Breeze Airways, Delta, Spirit Airlines, American Airlines, Frontier and Alaska Airlines.

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

    On average, United Airlines flights to San Diego cost $294 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 $161.

United Airlines customer reviews

7.4
GoodBased on 8,696 verified guest reviews
6.6Food
7.7Boarding
8.1Crew
7.1Entertainment
7.3Comfort
Pros +
Cons -
Show reviews that mention
Traveler rating:
Sort by:
A
8.0 Very good
Everything
D
10.0 Wonderful
No issues, great flight, great crew
V
10.0 Wonderful
Friendly crew, all very smooth
V
8.0 Very good
Crew friendly and efficient. Nobody seated next to me
B
2.0 Poor
Our flights got changed from United to Air Canada and our purchased seats did not get transferred so we had to pay for seats twice. I brought it up with Air Canada and they stated I had to go back and chase it with United. The united seats were $21 Canadian each and Air Canada were $56 each so we have paid $77 for each seat. Very unhappy
A
10.0 Wonderful
Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍
A
8.0 Very good
A bit rush for transit. Food and entertainment are not available
A
8.0 Very good
So far so good but food and entertainment are not available for this flight
D
10.0 Wonderful
Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.
L
8.0 Very good
Good
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
Delta flights to San Diego
American Airlines flights to San Diego
Southwest flights to San Diego

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.