Is United Airlines cheaper than other airlines flying to San Diego?

With an average return price of $249, United Airlines is cheaper than Spirit Airlines, Breeze Airways and Hawaiian Airlines when it comes to flights to San Diego. However, the cheapest airline flying to San Diego is Frontier, with an average return price of $228.

Which other airlines fly to San Diego?

Along with United Airlines, you can also fly to San Diego with Southwest, Hawaiian Airlines, Breeze Airways, Breeze Airways, Frontier, Allegiant Air, Spirit Airlines, Alaska Airlines and American Airlines.

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

On average, United Airlines flights to San Diego cost $441 for one-way and $249 return.

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.

United Airlines flights to San Diego (SAN) from $79

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.

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip United Airlines flight deals to San Diego

Wed, Jun 25 - Wed, Jul 2

10:35 pm - 12:15 amSFO-SAN

1h 40mnonstop

6:20 am - 7:58 amSAN-SFO

1h 38mnonstop

$84United Airlines

Find Deal

Mon, Jun 30 - Mon, Jun 30

7:00 am - 8:38 amSFO-SAN

1h 38mnonstop

9:45 am - 11:23 amSAN-SFO

1h 38mnonstop

$85United Airlines

Find Deal

Wed, Aug 6 - Sat, Aug 16

9:08 pm - 10:42 pmSFO-SAN

1h 34mnonstop

1:50 pm - 3:28 pmSAN-SFO

1h 38mnonstop

$87United Airlines

Find Deal

Wed, Jun 25 - Mon, Jun 30

9:06 pm - 10:45 pmSFO-SAN

1h 39mnonstop

6:20 am - 7:58 amSAN-SFO

1h 38mnonstop

$91United Airlines

Find Deal

Thu, Jul 31 - Mon, Aug 4

7:00 am - 8:38 amSFO-SAN

1h 38mnonstop

7:27 pm - 9:05 pmSAN-SFO

1h 38mnonstop

$97United Airlines

Find Deal

Wed, Jun 25 - Fri, Aug 1

10:35 pm - 12:15 amSFO-SAN

1h 40mnonstop

6:20 am - 7:58 amSAN-SFO

1h 38mnonstop

$100United Airlines

Find Deal

Tue, Jul 29 - Fri, Aug 1

7:10 pm - 8:50 pmSFO-SAN

1h 40mnonstop

6:20 am - 7:58 amSAN-SFO

1h 38mnonstop

$102United Airlines

Find Deal

Wed, Jun 25 - Wed, Jul 2

10:35 pm - 12:15 amSFO-SAN

1h 40mnonstop

6:20 am - 7:58 amSAN-SFO

1h 38mnonstop

$103United Airlines

Find Deal

Wed, Jul 30 - Tue, Aug 5

9:08 pm - 10:42 pmSFO-SAN

1h 34mnonstop

6:15 am - 11:46 amSAN-SFO

5h 31m1 stop

$107United Airlines

Find Deal

Fri, Jul 11 - Wed, Jul 16

6:00 am - 10:12 amSFO-SAN

4h 12m1 stop

7:27 pm - 9:05 pmSAN-SFO

1h 38mnonstop

$112United Airlines

Find Deal

Useful Info

Low season	January
High season	July
Cheapest flight	$79
Average price round-trip	$1,307
Good deal round-trip	$789
Good deal one-way	$409

Best time to beat the crowds with an average 8% drop in price.

Most popular time to fly and prices are also 0% lower on average.

Flight from San Francisco 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

Is United Airlines cheaper than other airlines flying to San Diego?
With an average return price of $249, United Airlines is cheaper than Spirit Airlines, Breeze Airways and Hawaiian Airlines when it comes to flights to San Diego. However, the cheapest airline flying to San Diego is Frontier, with an average return price of $228.
Which other airlines fly to San Diego?
Along with United Airlines, you can also fly to San Diego with Southwest, Hawaiian Airlines, Breeze Airways, Breeze Airways, Frontier, Allegiant Air, Spirit Airlines, Alaska Airlines and American Airlines.
How much is a flight to San Diego with United Airlines?
On average, United Airlines flights to San Diego cost $441 for one-way and $249 return.
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.

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 $134.

7.4

GoodBased on 8,792 verified guest reviews

6.6Food

7.3Comfort

8.1Crew

7.7Boarding

7.1Entertainment

Pros +

Cons -

Show reviews that mention

10.0 Wonderful

Anonymous, Jun 2025

Efficient, calm when things were delayed and kept us regularly informed of what was happening.

8.0 Very good

Anonymous, Jun 2025

It was good, smooth and pleasant

2.0 Poor

Anonymous, Jun 2025

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

6.0 Okay

Anonymous, Jun 2025

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

6.0 Okay

Anonymous, Jun 2025

average

6.0 Okay

Anonymous, Jun 2025

average

8.0 Very good

Anonymous, Jun 2025

They were as good as expected

2.0 Poor

Bruno, Jun 2025

Terrible. Out flight was delayed for 21 (twenty one) hours. United is a joke.

8.0 Very good

Lawrence, Jun 2025

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

10.0 Wonderful

Anonymous, Jun 2025

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

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SAN

Find cheap United Airlines flights to San Diego from $79

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Cheap United Airlines Flight Deals to San Diego

Recent round-trip United Airlines flight deals to San Diego

Recent one-way United Airlines flight deals to San Diego

Recent last minute United Airlines flight deals to San Diego

Recent direct United Airlines flight deals to San Diego

Good to know

When to book flights with United Airlines to San Diego

FAQs for flying to San Diego with United Airlines

Is United Airlines cheaper than other airlines flying to San Diego?

Which other airlines fly to San Diego?

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

Which airport do United Airlines flights to San Diego fly into?

Are there any other airlines in Star Alliance that fly to San Diego?

Top tips for your flights to San Diego with United Airlines

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