SAN

Find cheap Frontier flights to San Diego from $58

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1 adult, Economy, 0 bags

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Flight Deals

Cheap Frontier Flight Deals to San Diego

 
Here are some of the best deals found on KAYAK recently from Frontier 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.

Recent round-trip Frontier flight deals to San Diego

Tue, May 26 - Tue, Jun 2
Frontier Logo
7:12 am - 8:42 am
DEN
-
SAN
2h 30mnonstop
Frontier Logo
6:25 am - 10:01 am
SAN
-
DEN
2h 36mnonstop
$85Frontier
Tue, Jun 2 - Fri, Jun 5
Frontier Logo
10:29 pm - 11:50 pm
DEN
-
SAN
2h 21mnonstop
Frontier Logo
9:37 am - 1:07 pm
SAN
-
DEN
2h 30mnonstop
$91Frontier
Wed, Jun 3 - Wed, Jun 10
Frontier Logo
7:12 am - 8:42 am
DEN
-
SAN
2h 30mnonstop
Frontier Logo
10:04 am - 1:37 pm
SAN
-
DEN
2h 33mnonstop
$92Frontier
Thu, May 28 - Mon, Jun 1
Frontier Logo
7:12 am - 8:42 am
DEN
-
SAN
2h 30mnonstop
Frontier Logo
6:25 am - 10:01 am
SAN
-
DEN
2h 36mnonstop
$95Frontier
Thu, May 28 - Tue, Jun 2
Frontier Logo
10:29 pm - 11:50 pm
DEN
-
SAN
2h 21mnonstop
Frontier Logo
6:25 am - 10:01 am
SAN
-
DEN
2h 36mnonstop
$96Frontier
Tue, May 19 - Sat, May 23
Frontier Logo
9:03 am - 3:31 pm
DEN
-
SAN
7h 28m
1 stop
Frontier Logo
6:25 am - 10:01 am
SAN
-
DEN
2h 36mnonstop
$98Frontier
Tue, Jun 2 - Wed, Jun 10
Frontier Logo
10:29 pm - 11:50 pm
DEN
-
SAN
2h 21mnonstop
Frontier Logo
10:04 am - 1:37 pm
SAN
-
DEN
2h 33mnonstop
$100Frontier
Tue, May 26 - Thu, Jun 4
Frontier Logo
7:12 am - 8:42 am
DEN
-
SAN
2h 30mnonstop
Frontier Logo
9:37 am - 1:07 pm
SAN
-
DEN
2h 30mnonstop
$102Frontier
Fri, Jun 5 - Tue, Jun 9
Frontier Logo
7:12 am - 8:42 am
DEN
-
SAN
2h 30mnonstop
Frontier Logo
9:43 am - 6:04 pm
SAN
-
DEN
7h 21m
1 stop
$103Frontier
Tue, Jun 2 - Sat, Jun 6
Frontier Logo
10:29 pm - 11:50 pm
DEN
-
SAN
2h 21mnonstop
Frontier Logo
6:25 am - 10:01 am
SAN
-
DEN
2h 36mnonstop
$104Frontier
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Good to know

Low seasonFebruary
Cheapest flight$58
Average price round-trip$187
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 4% increase in price.
Flight from Denver 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

FAQs for flying to San Diego with Frontier

  • 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 $261. Flights to San Diego with Breeze Airways cost $340 on average, while Alaska Airlines cost $391.

  • Which other airlines fly to San Diego?

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

  • How much is a flight to San Diego with Frontier?

    On average, Frontier flights to San Diego cost $261 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.

Top tips for your flights 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 $82.
  • 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.

Frontier customer reviews

5.6
Fair2,968 verified ratings
5.9Boarding
6.6Crew
4.5Food
5.4Comfort
4.3Entertainment
Traveler rating:
Sort by:
D
2.0 Poor
Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.
H
2.0 Poor
Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy
S
2.0 Poor
The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve
D
4.0 Mediocre
Plane was hot and miserable and the crew was rude!
N
2.0 Poor
12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink
S
4.0 Mediocre
They didn’t offer a water, even after I asked
A
2.0 Poor
Terrible check in experience
A
2.0 Poor
The worst
A
6.0 Okay
Horrible leg room Never again
M
10.0 Wonderful
Zero issues with this flight. Crew was outstanding and flight was super. Plane was clean and fine. The seats need more padding and water should be provided without cost. I recognize it's Frontier but there are some things that should still be part of the flight. But still very satisfied with the experience and quality.
Read more about Frontier

Everything you need to know for your flight to San Diego

Other airlines flying to San Diego

Flight deals from the most popular airlines with KAYAK users flying the route
Alaska Airlines flights to San Diego
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Southwest flights to San Diego
Delta flights to San Diego