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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 - Sat, Dec 6
United Airlines Logo
6:30 am - 8:06 amSFO-SAN
1h 36mnonstop
United Airlines Logo
4:08 pm - 5:50 pmSAN-SFO
1h 42mnonstop
$77United Airlines
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Mon, Nov 17 - Tue, Dec 2
United Airlines Logo
6:30 am - 8:06 amSFO-SAN
1h 36mnonstop
United Airlines Logo
9:54 am - 11:41 amSAN-SFO
1h 47mnonstop
$97United Airlines
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Sun, Nov 16 - Wed, Dec 3
United Airlines Logo
10:35 pm - 12:13 amSFO-SAN
1h 38mnonstop
United Airlines Logo
9:54 am - 11:41 amSAN-SFO
1h 47mnonstop
$107United Airlines
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Fri, Dec 12 - Sat, Dec 13
United Airlines Logo
6:30 am - 8:06 amSFO-SAN
1h 36mnonstop
United Airlines Logo
7:45 am - 9:32 amSAN-SFO
1h 47mnonstop
$109United Airlines
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Wed, Nov 26 - Wed, Dec 3
United Airlines Logo
6:30 am - 8:06 amSFO-SAN
1h 36mnonstop
United Airlines Logo
4:08 pm - 5:50 pmSAN-SFO
1h 42mnonstop
$117United Airlines
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Thu, Nov 27 - Thu, Dec 4
United Airlines Logo
6:00 am - 10:21 amSFO-SAN
4h 21m1 stop
United Airlines Logo
4:08 pm - 5:50 pmSAN-SFO
1h 42mnonstop
$127United 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
$133United Airlines
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Tue, Dec 2 - Thu, Dec 4
United Airlines Logo
6:50 pm - 11:42 pmSFO-SAN
4h 52m1 stop
United Airlines Logo
8:00 pm - 9:42 pmSAN-SFO
1h 42mnonstop
$137United Airlines
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Mon, Nov 10 - Fri, Nov 14
United Airlines Logo
1:17 pm - 2:55 pmSFO-SAN
1h 38mnonstop
United Airlines Logo
9:54 am - 11:41 amSAN-SFO
1h 47mnonstop
$142United Airlines
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Sat, Jan 17 - Sun, Jan 18
United Airlines Logo
7:00 am - 8:37 amSFO-SAN
1h 37mnonstop
United Airlines Logo
11:08 am - 3:12 pmSAN-SFO
4h 04m1 stop
$147United Airlines
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Good to know

Low seasonSeptember
Cheapest flight$39
Average price round-trip$304
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly and prices are also 3% lower on average.
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, Alaska Airlines, Breeze Airways, Alaska Airlines, Frontier, Delta, 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 $264 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 $146.

United Airlines customer reviews

7.4
Good8,999 verified ratings
7.3Comfort
7.7Boarding
6.6Food
7.1Entertainment
8.1Crew
Pros +
  • The flight arrived early and that was great (in 143 reviews)
Cons -
  • The space in economy plus. (in 296 reviews)
Show reviews that mention
Traveler rating:
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D
10.0 Wonderful
Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.
A
10.0 Wonderful
Flight left on time. Boarding was easy. Arrived to EWR 30 mins early. Luggage was deplaned in good time. Overall a very good experience.
S
10.0 Wonderful
Flight from Rome to SFO was excellent compared To our flight to Europe from SFO. The food was much tastier. You can see how UNITED is skimping, though. Instead of getting something mid flight you had to ask for it. It was not automatically served. There was a cookie at the end of the arrival meal, for example that tasted like it just came out of a box. They used to serve a little container of nuts, now … a tiny container of nuts, mixed with pretzels. This was business class that you really have to pay for! But this is minor complaints compared to the overall. My major complaint is the position of the even numbered seats by the windows. You have to turn around to see your window & the positioning as some other controls are harder to get at. This is compared to the odd number seat that are perfectly aligned.
A
2.0 Poor
The person I bought the ticket for didn’t make the flight.
N
4.0 Mediocre
Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.
A
2.0 Poor
Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.
D
10.0 Wonderful
Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.
A
2.0 Poor
After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.
S
6.0 Okay
No rental car
S
6.0 Okay
No rental car
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
Southwest flights to San Diego
American Airlines flights to San Diego
Frontier flights to San Diego
Delta flights to San Diego

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