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 $270. Flights to San Diego with Breeze Airways cost $357 on average, while Alaska Airlines cost $409.

Which other airlines fly to San Diego?

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

How much is a flight to San Diego with Frontier?

On average, Frontier flights to San Diego cost $270 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 $52

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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

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Recent round-trip Frontier flight deals to San Diego

Fri, Nov 6 - Sat, Nov 7

9:52 am - 10:11 amPHX Phoenix Sky Harbor Intl-SAN San Diego

1h 19mnonstop

11:06 am - 1:41 pmSAN San Diego-PHX Phoenix Sky Harbor Intl

1h 35mnonstop

$76Frontier

Mon, Nov 16 - Wed, Nov 18

9:52 am - 10:11 amPHX Phoenix Sky Harbor Intl-SAN San Diego

1h 19mnonstop

11:06 am - 1:41 pmSAN San Diego-PHX Phoenix Sky Harbor Intl

1h 35mnonstop

$77Frontier

Wed, Nov 4 - Sat, Nov 7

10:09 am - 3:58 pmPHX Phoenix Sky Harbor Intl-SAN San Diego

6h 49m1 stop Denver Intl

11:06 am - 1:41 pmSAN San Diego-PHX Phoenix Sky Harbor Intl

1h 35mnonstop

$78Frontier

Sat, Nov 21 - Mon, Nov 23

7:54 pm - 8:12 pmPHX Phoenix Sky Harbor Intl-SAN San Diego

1h 18mnonstop

8:50 am - 12:33 amSAN San Diego-PHX Phoenix Sky Harbor Intl

14h 43m1 stop Las Vegas Harry Reid Intl

$79Frontier

Sat, Nov 21 - Mon, Nov 23

7:54 pm - 8:12 pmPHX Phoenix Sky Harbor Intl-SAN San Diego

1h 18mnonstop

8:50 am - 12:33 amSAN San Diego-PHX Phoenix Sky Harbor Intl

14h 43m1 stop Las Vegas Harry Reid Intl

$80Frontier

Fri, Nov 6 - Wed, Nov 11

9:52 am - 10:11 amPHX Phoenix Sky Harbor Intl-SAN San Diego

1h 19mnonstop

11:06 am - 1:41 pmSAN San Diego-PHX Phoenix Sky Harbor Intl

1h 35mnonstop

$81Frontier

Sat, Nov 21 - Sun, Nov 22

7:54 pm - 8:12 pmPHX Phoenix Sky Harbor Intl-SAN San Diego

1h 18mnonstop

1:02 pm - 3:33 pmSAN San Diego-PHX Phoenix Sky Harbor Intl

1h 31mnonstop

$82Frontier

Fri, Nov 6 - Mon, Nov 9

9:52 am - 10:11 amPHX Phoenix Sky Harbor Intl-SAN San Diego

1h 19mnonstop

7:38 pm - 10:10 pmSAN San Diego-PHX Phoenix Sky Harbor Intl

1h 32mnonstop

$83Frontier

Thu, Dec 3 - Sun, Dec 6

4:29 pm - 6:10 pmSFO San Francisco-SAN San Diego

1h 41mnonstop

7:51 pm - 9:46 pmSAN San Diego-SFO San Francisco

1h 55mnonstop

$83Frontier

Sat, Nov 21 - Mon, Nov 23

7:54 pm - 8:12 pmPHX Phoenix Sky Harbor Intl-SAN San Diego

1h 18mnonstop

6:30 am - 12:42 amSAN San Diego-PHX Phoenix Sky Harbor Intl

17h 12m1 stop Denver Intl

$84Frontier

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 $102 (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 $221 and $205 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 $52 one-way, and $83 round-trip on the route from San Francisco to San Diego. The most popular route is from Denver to San Diego and the cheapest ticket found on this route in the last 5 days was $119 return.

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

Each week there are around 35 direct flights from within the United States to San Diego. The most common day for departures is Monday, 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 Tuesday where tickets can be as cheap as $144. On the other hand, the most expensive day to fly is Sunday, where prices are $194 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 $157 on average.

Low season	February
High season	October
Cheapest flight	$52
Average price round-trip	$250

Best time to beat the crowds with an average 18% drop in price.

Most popular time to fly with an average 7% increase in price.

Flight from San Francisco to San Diego

(price for this month)

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 $270. Flights to San Diego with Breeze Airways cost $357 on average, while Alaska Airlines cost $409.
Which other airlines fly to San Diego?
Along with Frontier, you can also fly to San Diego with Southwest, Delta, Breeze Airways, Alaska Airlines, JetBlue, United Airlines, Alaska Airlines, Breeze Airways and American Airlines.
How much is a flight to San Diego with Frontier?
On average, Frontier flights to San Diego cost $270 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 $75.
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.

5.5

Fair2,527 verified ratings

5.8Boarding

4.5Food

5.4Comfort

6.5Crew

4.2Entertainment

10.0 Wonderful

David, Oct 2026

Ability to choose to board early

2.0 Poor

Tom, Oct 2026

It got me to my destination? However we were an hour delayed departing, and we never received any updates or notifications from staff. Poor communication and customer service.

4.0 Mediocre

Rebecca, Oct 2026

Frontier didn’t give us enough notice that our flight had been delayed. I was just entering the airport when I received the notice, less than 2hrs before my scheduled flight. They delayed it 1hr 22min because another jet left late out of Vegas. Frontier needs better communication with customers because I could have eaten at home and had someone drive me instead of paying for an Uber.

10.0 Wonderful

Benita Harris, Oct 2026

Great flight, no problems. I wish they would increase the checked bag weight limit. Packing was very stressful.

10.0 Wonderful

Patrick, Oct 2026

Excellent trip plane ride

2.0 Poor

Anonymous, Oct 2026

My experience with Frontier was terrible. We were delayed for 2 hours. At one point during the wait at the gate I left to go get a sandwich - I was gone probably 15 minutes. In my absence, they decided to move our flight up, boarded and left. When I came back the two attendants were very rude and I unavoidably had to purchase another ticket on the next flight. During this whole time, the Frontier app did not update the departure time, so I was SOL.

10.0 Wonderful

Fer, Oct 2026

Great services

2.0 Poor

David, Sep 2026

Greyhound of the skies...

2.0 Poor

Anonymous, Sep 2026

Flight delayed 9 hours. On tarmac for over an hour after arrival. Will never book with Frontier under any circumstances ever again.

2.0 Poor

NeCall, Sep 2026

My ATL–CVG Frontier flight was disappointing due to both an operational issue and unprofessional customer service. After everyone had boarded and the aircraft had pushed back from the gate, we were delayed because the passenger count did not match the flight manifest. The crew counted passengers approximately six times before the aircraft returned to the gate and gate agents boarded to help resolve the discrepancy. We were ultimately advised that a family had been allowed to board but not all of their boarding passes had been properly scanned. This resulted in a departure delay of nearly an hour. I did appreciate that the pilot kept passengers informed and tried to reassure us that some of the delay could be recovered during the flight. My greater concern was the customer-service experience. I am a Frontier Elite Platinum member and was seated within the first five rows. When I boarded, the overhead bins near my seat were already closed. I opened two bins to see whether my small backpack would fit. A female flight attendant sharply told me that a closed bin meant it was full, although the second bin clearly had available space. When I tried to ask whether I could simply place my backpack in that available space, she ignored me. Later, while the gate agents were working to resolve the passenger-count problem, I heard the same flight attendant make jokes about how many gate agents it takes to count passengers. She then made unnecessary comments about the male gate agent doing the count, men thinking they can do things better than women, and women knowing better and outliving men. Later in the flight, she also commented that passengers should know that the first thing they need to do is always be nice to the flight attendants. Courtesy absolutely should go both ways. Flight attendants deserve respect from passengers, but passengers also deserve respectful and professional treatment from the crew. Joking about colleagues who were actively trying to correct an operational problem, making gender-based comments in front of passengers, and being dismissive toward a passenger asking a simple baggage question were unnecessary and unprofessional. I fly enough to understand that delays and mistakes happen. What determines the quality of the experience is how those situations are handled. Unfortunately, the customer-service attitude on this flight made an already frustrating operational delay considerably worse.

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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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