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

With an average return price of $454, United Airlines is cheaper than Delta when it comes to flights to San Diego. However, the cheapest airline flying to San Diego is Frontier, with an average return price of $292.

Which other airlines fly to San Diego?

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

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

On average, United Airlines flights to San Diego cost $454 for a round-trip.

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 $69

Flight Deals

Cheap United Airlines Flight Deals to San Diego

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

Thu, Aug 13 - Mon, Aug 17

8:28 am - 10:18 am

SFO

SAN

1h 50mnonstop

9:49 am - 11:35 am

SAN

SFO

1h 46mnonstop

$117United Airlines

Thu, Jul 16 - Wed, Jul 22

6:38 am - 8:22 am

SFO

SAN

1h 44mnonstop

7:15 am - 9:01 am

SAN

SFO

1h 46mnonstop

$137United Airlines

Mon, Jul 13 - Mon, Jul 20

6:38 am - 8:22 am

SFO

SAN

1h 44mnonstop

6:20 am - 10:45 am

SAN

SFO

4h 25m

1 stop

$147United Airlines

Thu, Jul 9 - Tue, Jul 14

6:00 am - 10:08 am

SFO

SAN

4h 08m

1 stop

6:20 am - 10:45 am

SAN

SFO

4h 25m

1 stop

$157United Airlines

Sun, Oct 4 - Mon, Oct 5

7:00 am - 11:35 am

SFO

SAN

4h 35m

1 stop

6:15 am - 8:01 am

SAN

SFO

1h 46mnonstop

$167United Airlines

Tue, Aug 25 - Tue, Sep 1

7:43 am - 9:05 am

DEN

SAN

2h 22mnonstop

6:30 am - 10:06 am

SAN

DEN

2h 36mnonstop

$177United Airlines

Thu, Jul 9 - Sun, Jul 12

9:00 pm - 10:49 pm

SFO

SAN

1h 49mnonstop

6:15 am - 7:59 am

SAN

SFO

1h 44mnonstop

$177United Airlines

Tue, Sep 22 - Sat, Sep 26

7:43 am - 9:05 am

DEN

SAN

2h 22mnonstop

12:40 pm - 8:13 pm

SAN

DEN

6h 33m

1 stop

$183United Airlines

Thu, Jul 30 - Sun, Aug 2

6:38 am - 8:22 am

SFO

SAN

1h 44mnonstop

6:15 am - 7:59 am

SAN

SFO

1h 44mnonstop

$186United Airlines

Wed, Aug 19 - Mon, Aug 24

5:20 pm - 10:47 pm

SEA

SAN

5h 27m

1 stop

1:24 pm - 6:29 pm

SAN

SEA

5h 05m

1 stop

$187United Airlines

Useful Info

Low season	December
High season	March
Cheapest flight	$69
Average price round-trip	$827
Good deal round-trip	$703
Good deal one-way	$597

Best time to beat the crowds but there is an average 17% increase in price.

Most popular time to fly with an average 6% increase in price.

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 $454, United Airlines is cheaper than Delta when it comes to flights to San Diego. However, the cheapest airline flying to San Diego is Frontier, with an average return price of $292.
Which other airlines fly to San Diego?
Along with United Airlines, you can also fly to San Diego with Southwest, Alaska Airlines, Delta, Alaska Airlines, American Airlines, Breeze Airways, Breeze Airways and Frontier.
How much is a flight to San Diego with United Airlines?
On average, United Airlines flights to San Diego cost $454 for a round-trip.
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 Chicago O'Hare Intl Airport and cost $303.
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.

7.4

Good9,866 verified ratings

8.1Crew

7.7Boarding

7.3Comfort

7.1Entertainment

6.6Food

8.0 Very good

Robert, Jun 2026

For my wife to be seated with our two children they put them in the last row on the plane where the seats don’t recline very much. The seats in front of them reclined fully which is basically in the lap of the last row which made it difficult to eat, move or watch the entertainment provided.

6.0 Okay

Robert, Jun 2026

We used Kayak to reserve our tickets and specifically checked the luggage option which was a more expensive option. When we arrived at the terminal we had to pay an extra $90 per suitcase for the three passengers. This has been a pattern for the past 3 years. Why charge for a more expensive luggage option, and the ticket price not include luggage?

4.0 Mediocre

Anonymous, Jun 2026

United has been holding my money for a cancel on another ticket they wouldn’t let me fly for going on 5 months. Terrible service I wouldn’t choose to buy tickets or fly with united again. Very bad experience generally dishonorable and poor service .

10.0 Wonderful

Anonymous, Jun 2026

It was good!

8.0 Very good

Dora Leigh, Jun 2026

Flight was fine.

8.0 Very good

Dora Leigh, Jun 2026

The seats were very nice in premium economy. The service was good. The flight was slightly bumpy. Would have appreciated more updates from the pilots.

8.0 Very good

Dora Leigh, Jun 2026

The service was very good and the flight was super smooth. The seats could have been more comfortable for the price.

2.0 Poor

silvester, Jun 2026

They delayed the flight 3 hours because it wasn't full they moved us to 5 different gates probably the worst airline ever not even spirit is this bad.

10.0 Wonderful

Joanne, Jun 2026

Very easy ! Use the kiosk and bag drop and right to security within 10 min

8.0 Very good

Indrashis, Jun 2026

Ok ok

Everything you need to know for your flight to San Diego

Airlines

Airports

Cabin class

Complete your trip

Flights to other cities

Origins

Other airports

United Airlines flights

Other airlines flying to San Diego

Southwest flights to San Diego

Delta flights to San Diego

Frontier flights to San Diego

Alaska Airlines flights to San Diego

American Airlines flights to San Diego

SAN

Find cheap United Airlines flights to San Diego from $69 - Compare and Save

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

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

Top tips for your flights to San Diego with United Airlines

United Airlines customer reviews

Traveler rating:

Sort by:

Everything you need to know for your flight to San Diego

Other airlines flying to San Diego

Information on the airport you'll fly into in San Diego

Cabin class types available on flights to San Diego

Complete your trip to San Diego with a hotel stay or car rental

Flights to other popular destinations

Flights from domestic origins to San Diego

Choose which airport to fly into in San Diego

Top United Airlines flights