Is Frontier cheaper than other airlines flying to San Diego?

Frontier is the cheapest airline flying to San Diego with an average return price of $333. Flights to San Diego with Breeze Airways cost $358 on average, while United Airlines cost $378.

Which other airlines fly to San Diego?

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

How much is a flight to San Diego with Frontier?

On average, Frontier flights to San Diego cost $333 for a round-trip.

Which airport do Frontier flights to San Diego fly into?

You’ll fly into San Diego Airport when flying to San Diego with Frontier.

Frontier flights to San Diego (SAN) from $59

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Flight Deals

Cheap Frontier 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 Frontier flight deals to San Diego

Thu, Jul 30 - Tue, Aug 4

10:23 pm - 12:04 am

SFO

SAN

1h 41mnonstop

7:46 pm - 9:38 pm

SAN

SFO

1h 52mnonstop

$93Frontier

Sat, Aug 22 - Fri, Aug 28

1:07 pm - 2:50 pm

SFO

SAN

1h 43mnonstop

10:00 am - 11:52 am

SAN

SFO

1h 52mnonstop

$94Frontier

Thu, Aug 27 - Mon, Aug 31

1:07 pm - 2:50 pm

SFO

SAN

1h 43mnonstop

8:59 pm - 10:25 am

SAN

SFO

13h 26m

1 stop

$95Frontier

Tue, Aug 4 - Tue, Aug 11

10:23 pm - 12:04 am

SFO

SAN

1h 41mnonstop

3:03 pm - 9:12 pm

SAN

SFO

6h 09m

1 stop

$96Frontier

Thu, Aug 27 - Mon, Aug 31

1:07 pm - 2:50 pm

SFO

SAN

1h 43mnonstop

6:25 am - 3:56 pm

SAN

SFO

9h 31m

1 stop

$97Frontier

Thu, Aug 27 - Mon, Aug 31

7:04 pm - 11:44 pm

SFO

SAN

4h 40m

1 stop

10:00 am - 11:52 am

SAN

SFO

1h 52mnonstop

$98Frontier

Tue, Aug 11 - Tue, Aug 18

7:04 pm - 3:50 pm

SFO

SAN

20h 46m

1 stop

10:00 am - 11:52 am

SAN

SFO

1h 52mnonstop

$99Frontier

Thu, Aug 27 - Mon, Aug 31

7:04 pm - 11:44 pm

SFO

SAN

4h 40m

1 stop

10:00 am - 11:52 am

SAN

SFO

1h 52mnonstop

$100Frontier

Tue, Aug 4 - Thu, Aug 6

10:23 pm - 12:04 am

SFO

SAN

1h 41mnonstop

7:45 pm - 9:32 pm

SAN

SFO

1h 47mnonstop

$101Frontier

Fri, Sep 4 - Mon, Sep 7

1:07 pm - 2:50 pm

SFO

SAN

1h 43mnonstop

10:00 am - 11:52 am

SAN

SFO

1h 52mnonstop

$102Frontier

Useful Info

KAYAK's insights & trends for San Diego flights with Frontier

Get data-powered insights and trends into Frontier flights to San Diego to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly with Frontier to San Diego?

The cheapest month for Frontier flights to San Diego is February, where tickets cost $104 (return) on average. On the other hand, the most expensive months to fly this route on Frontier are June and March, where the average cost of round-trip tickets is $222 and $184 respectively.

How far in advance should I book Frontier flights to San Diego?

For the absolute cheapest price on Frontier, our data suggests you should book 4 weeks before departure.

What is the cheapest flight to San Diego with Frontier?

The cheapest airline ticket to San Diego from the United States with Frontier in the last 5 days was $59 one-way, and $93 round-trip on the route from San Francisco to San Diego. The most popular route is from Dallas/Fort Worth Airport to San Diego and the cheapest ticket found on this route in the last 5 days was $210 return.

How many direct flights does Frontier operate to San Diego every week?

Each week there are around 46 direct flights from within the United States to San Diego. The most common day for departures is Sunday, with 17% of flights taking off on this day.

What is the cheapest day to fly to San Diego?

Based on KAYAK data, the cheapest day to fly to San Diego is Saturday where tickets can be as cheap as $154. On the other hand, the most expensive day to fly is Sunday, where prices are $187 on average.

What is the cheapest time of day to fly to San Diego with Frontier?

The cheapest time of day to fly to San Diego with Frontier is generally in the morning, when flights cost $146 on average.

Low season	February
High season	July
Cheapest flight	$59
Average price round-trip	$328
Good deal round-trip	$278

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

Most popular time to fly with an average 10% increase in price.

Flight from San Francisco to San Diego

(avg. price over the last 2 weeks)

or less

When to book flights with Frontier to San Diego

Average price per month

Flight prices as travel date approaches

Is Frontier cheaper than other airlines flying to San Diego?
Frontier is the cheapest airline flying to San Diego with an average return price of $333. Flights to San Diego with Breeze Airways cost $358 on average, while United Airlines cost $378.
Which other airlines fly to San Diego?
Along with Frontier, you can also fly to San Diego with Southwest, Alaska Airlines, Delta, Delta, Breeze Airways, Breeze Airways, Alaska Airlines and United Airlines.
How much is a flight to San Diego with Frontier?
On average, Frontier flights to San Diego cost $333 for a round-trip.
Which airport do Frontier flights to San Diego fly into?
You’ll fly into San Diego Airport when flying to San Diego with Frontier.

The cheapest flight to San Diego with Frontier found on KAYAK in the last 2 weeks departed from Dallas/Fort Worth Airport and cost $186.
If you’re intending to fly with Frontier, 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 Frontier is July and prices are highest at this time. The cheapest month to fly is February.

5.6

Fair2,832 verified ratings

5.9Boarding

4.5Food

6.6Crew

4.3Entertainment

5.4Comfort

10.0 Wonderful

Deidre, Jul 2026

The flight was great . But you only had one vegan item on the whole flight and someone prior to me took it . I was so disappointed cause I came in from the flooded area and couldn’t pick up anything prior to my flight .

2.0 Poor

Anonymous, Jul 2026

I really didn't like anything. Paid for my checked luggage online ($79) and then was told that I would have to paid another $79 for my carry on. Was not allowed to enter the terminal until 3 hours before my flight and when I finally was allowed to check my bag and enter, my flight was delayed 3 times. When I finally landed, we were all instructed to "run off the plane" as they had to do a quick turn around to Las Vegas. Me and several of my flying companions will never fly Frontier again.

10.0 Wonderful

Anonymous, Jul 2026

All was great

10.0 Wonderful

kami, Jul 2026

I paid for the upgraded bundle. Was worth it! Great experience round trip!

8.0 Very good

Lawrence, Jul 2026

Flight was 40 mins delayed . Crew was fabulous

2.0 Poor

Katie, Jul 2026

It was awful everything about it terrible I will never ever ever ride it again

2.0 Poor

Katie, Jul 2026

It was awful ....my first time flying on it and I will NEVER fly it again ....everything about it was terrible .....most especially the flight attendants

10.0 Wonderful

Deidre, Jun 2026

Great

6.0 Okay

Katherine, Jun 2026

Crew was kind of grumpy and there was no beverage service at all. Sodas were $4. Disappointing.

6.0 Okay

Linda, May 2026

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

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Recent round-trip Frontier flight deals to San Diego

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KAYAK's insights & trends for San Diego flights with Frontier

What is the cheapest month to fly with Frontier to San Diego?

How far in advance should I book Frontier flights to San Diego?

What is the cheapest flight to San Diego with Frontier?

How many direct flights does Frontier operate to San Diego every week?

What is the cheapest day to fly to San Diego?

What is the cheapest time of day to fly to San Diego with Frontier?

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