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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

Sat, Dec 6 - Thu, Dec 11
United Airlines Logo
6:00 am - 10:21 amSFO-SAN
4h 21m1 stop
United Airlines Logo
9:54 am - 11:41 amSAN-SFO
1h 47mnonstop
$117United Airlines
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Sat, Dec 6 - Sun, Dec 7
United Airlines Logo
6:30 am - 8:06 amSFO-SAN
1h 36mnonstop
United Airlines Logo
6:15 am - 8:02 amSAN-SFO
1h 47mnonstop
$126United Airlines
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Wed, Jan 7 - Sat, Jan 10
United Airlines Logo
9:05 am - 10:46 amSFO-SAN
1h 41mnonstop
United Airlines Logo
4:00 pm - 5:46 pmSAN-SFO
1h 46mnonstop
$127United Airlines
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Fri, Dec 12 - Sun, Dec 14
United Airlines Logo
6:30 am - 8:06 amSFO-SAN
1h 36mnonstop
United Airlines Logo
6:15 am - 8:02 amSAN-SFO
1h 47mnonstop
$137United Airlines
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Fri, Dec 12 - Mon, Dec 15
United Airlines Logo
6:30 am - 8:06 amSFO-SAN
1h 36mnonstop
United Airlines Logo
7:45 am - 9:32 amSAN-SFO
1h 47mnonstop
$138United Airlines
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Fri, Dec 5 - Sun, Dec 7
United Airlines Logo
6:30 am - 8:06 amSFO-SAN
1h 36mnonstop
United Airlines Logo
6:15 am - 8:02 amSAN-SFO
1h 47mnonstop
$139United Airlines
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Thu, Jan 22 - Sat, Jan 24
United Airlines Logo
11:06 am - 12:49 pmSFO-SAN
1h 43mnonstop
United Airlines Logo
6:15 am - 8:00 amSAN-SFO
1h 45mnonstop
$147United Airlines
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Wed, Dec 10 - Wed, Dec 17
United Airlines Logo
3:45 pm - 10:30 pmSEA-SAN
6h 45m1 stop
United Airlines Logo
1:05 pm - 6:28 pmSAN-SEA
5h 23m1 stop
$153United Airlines
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Thu, Jan 22 - Sat, Jan 24
United Airlines Logo
11:06 am - 12:49 pmSFO-SAN
1h 43mnonstop
United Airlines Logo
6:15 am - 12:00 pmSAN-SFO
5h 45m1 stop
$153United Airlines
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Sun, Jan 25 - Thu, Jan 29
United Airlines Logo
7:00 am - 8:37 amSFO-SAN
1h 37mnonstop
United Airlines Logo
7:52 pm - 9:39 pmSAN-SFO
1h 47mnonstop
$157United Airlines
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Good to know

Low seasonJanuary
Cheapest flight$39
Average price round-trip$346
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from San Francisco to San Diego
(price for this month)

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, Delta, Breeze Airways, Alaska Airlines, Frontier, Alaska Airlines, Spirit Airlines, Breeze Airways and American Airlines.

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

    On average, United Airlines flights to San Diego cost $234 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 $124.
  • 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 April and prices are highest at this time. The cheapest month to fly is August.

United Airlines customer reviews

7.4
Good9,015 verified ratings
8.1Crew
7.3Comfort
7.1Entertainment
6.6Food
7.7Boarding
Pros +
  • Flight was quick and easy. (in 2447 reviews)
Cons -
  • Have the middle seats vacant. (in 137 reviews)
  • The space in economy plus. (in 296 reviews)
Show reviews that mention
Traveler rating:
Sort by:
D
10.0 Wonderful
Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.
G
10.0 Wonderful
Is my favorite Lufthansa?
S
8.0 Very good
Good trip. Good crew. Thank you!
S
8.0 Very good
Great crew, excellent landing, good food. Over all great experience. Thank you!
N
8.0 Very good
Entertainment and wifi did not work
A
4.0 Mediocre
Please figure out the delays
T
4.0 Mediocre
Older aircraft, no meal, only food was for purchase. Not impressed United.
T
4.0 Mediocre
United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.
C
10.0 Wonderful
Always wish for more healthy, gluten free options. We have to bring our own.
C
6.0 Okay
Just the hardness of the seats was an issue.
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
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