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 $207. Flights to San Diego with Delta cost $215 on average, while Breeze Airways cost $270.

Which other airlines fly to San Diego?

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

How much is a flight to San Diego with Frontier?

On average, Frontier flights to San Diego cost $207 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 $48

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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

Sat, Oct 3 - Mon, Oct 5

4:21 pm - 6:09 pmSFO San Francisco-SAN San Diego

1h 48mnonstop

4:54 pm - 12:14 amSAN San Diego-SFO San Francisco

7h 20m1 stop Denver Intl

$81Frontier

Thu, Nov 19 - Tue, Nov 24

4:57 pm - 6:38 pmSFO San Francisco-SAN San Diego

1h 41mnonstop

4:29 pm - 6:16 pmSAN San Diego-SFO San Francisco

1h 47mnonstop

$82Frontier

Thu, Oct 1 - Mon, Oct 5

11:17 am - 8:17 pmSFO San Francisco-SAN San Diego

9h 00m1 stop Las Vegas Harry Reid Intl

10:28 am - 12:25 pmSAN San Diego-SFO San Francisco

1h 57mnonstop

$83Frontier

Sat, Sep 26 - Mon, Sep 28

4:31 pm - 6:19 pmSFO San Francisco-SAN San Diego

1h 48mnonstop

10:28 am - 12:25 pmSAN San Diego-SFO San Francisco

1h 57mnonstop

$84Frontier

Sun, Nov 22 - Thu, Nov 26

5:33 pm - 7:16 pmSFO San Francisco-SAN San Diego

1h 43mnonstop

8:11 pm - 10:06 pmSAN San Diego-SFO San Francisco

1h 55mnonstop

$85Frontier

Sat, Sep 19 - Sat, Sep 26

4:31 pm - 6:19 pmSFO San Francisco-SAN San Diego

1h 48mnonstop

1:38 pm - 3:33 pmSAN San Diego-SFO San Francisco

1h 55mnonstop

$86Frontier

Tue, Sep 22 - Tue, Sep 29

4:31 pm - 6:19 pmSFO San Francisco-SAN San Diego

1h 48mnonstop

10:28 am - 12:25 pmSAN San Diego-SFO San Francisco

1h 57mnonstop

$87Frontier

Fri, Oct 2 - Mon, Oct 5

4:21 pm - 6:09 pmSFO San Francisco-SAN San Diego

1h 48mnonstop

10:28 am - 12:25 pmSAN San Diego-SFO San Francisco

1h 57mnonstop

$88Frontier

Thu, Oct 8 - Thu, Oct 15

10:19 pm - 7:49 pmSFO San Francisco-SAN San Diego

21h 30m1 stop Las Vegas Harry Reid Intl

3:14 pm - 5:03 pmSAN San Diego-SFO San Francisco

1h 49mnonstop

$89Frontier

Fri, Nov 27 - Sat, Dec 5

5:33 pm - 7:16 pmSFO San Francisco-SAN San Diego

1h 43mnonstop

11:55 am - 1:55 pmSAN San Diego-SFO San Francisco

2h 00mnonstop

$90Frontier

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 $103 (return) on average. On the other hand, the most expensive months to fly this route on Frontier are June and July, where the average cost of round-trip tickets is $223 and $206 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 $48 one-way, and $81 round-trip on the route from San Francisco to San Diego. The most popular route is from San Francisco to San Diego and the cheapest ticket found on this route in the last 5 days was $81 return.

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

Each week there are around 77 direct flights from within the United States to San Diego. The most common day for departures is Thursday, with 18% 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 Tuesday where tickets can be as cheap as $146. On the other hand, the most expensive day to fly is Sunday, where prices are $190 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 $152 on average.

Low season	February
High season	October
Cheapest flight	$48
Average price round-trip	$207
Good deal round-trip	$176

Best time to beat the crowds with an average 15% drop in price.

Most popular time to fly and prices are also 14% lower on average.

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 $207. Flights to San Diego with Delta cost $215 on average, while Breeze Airways cost $270.
Which other airlines fly to San Diego?
Along with Frontier, you can also fly to San Diego with Southwest, Alaska Airlines, Breeze Airways, Breeze Airways, Delta, Alaska Airlines, United Airlines, Delta and Sun Country Air.
How much is a flight to San Diego with Frontier?
On average, Frontier flights to San Diego cost $207 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 Phoenix Sky Harbor Intl Airport and cost $46.
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 October and prices are highest at this time. The cheapest month to fly is February.

5.6

Fair2,610 verified ratings

6.5Crew

5.4Comfort

4.5Food

4.2Entertainment

5.9Boarding

2.0 Poor

Jamie, Sep 2026

Did not get on the flight, they had a gate change and my app never updated me! Trying to get flight credit

2.0 Poor

-eLa, Sep 2026

Flight was delayed by about an hour, once we arrived at LAX we had to take a shuttle to the baggage claim - it was completely disorganized. The agents at the shuttles were rude and unable to provide any information. Frontier charges extra for everything from bags to drinks - at the end it ends up being more expensive than flying the better airlines

2.0 Poor

Kurt, Aug 2026

Sat in the airport waiting for my flight for 5 hours. Finally got on the plane only to be thrown off and told that my flight was cancelled. Zero customer service. Nobody spoke to us. Just the worst

2.0 Poor

John, Aug 2026

3+ hour delay on a direct flight is never ideal.

2.0 Poor

Anonymous, Aug 2026

When I was boarding my departure from Raleigh to Orlando I was inappropriately scolded by a female dog named Mia because I didn’t pay in advance for my carry on bag ($75). Frontiers website is confusing regarding pre-paying for carryons so it was a simple mistake. I also had paid for “upfront plus” meaning me and my son were seated in the front row with no one in the middle seat ($450 upgrade). When we were boarding Mia said “sir, you didn’t pay for your carryon” in a not so polite tone and told me to get out of line and come back to the counter to pay for my carryon. The way they had the retractable rope left me no room to circle back without making the people behind me move so I just stood there and then she said a second time “sir!! Go pay for your carryon” in an embarrassing tone. I then moved their rope so I could get back to the counter when a second female dog then asked “are you done!?!?” because I had said “do you want me to bulldoze the people behind me?” I then said you do realize I paid over $400 for upfront plus so I was certainly not trying to sneak a carryon bag without paying. Long story short, I am soooo done with discount airlines!!! By the time you pay for all the “extras” you might as well have paid for Delta Southwest or American! Frontier airlines sucks and I was embarrassed by a female dog named Mia!!!

4.0 Mediocre

Wissam, Aug 2026

No reclining seats

8.0 Very good

Anonymous, Aug 2026

Friendly service. No charges for phones.

8.0 Very good

Noel, Aug 2026

Great services

2.0 Poor

Anonymous, Aug 2026

They cancelled my flight

10.0 Wonderful

Joe, Aug 2026

Frontier is good until they cancel your flight. Way too many cancellations.

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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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