SAN

Find cheap Frontier flights to San Diego from $37

1 adult
1 adult, Economy, 0 bags

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

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Useful Info
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

Thu, Apr 2 - Sat, Apr 11
Frontier Logo
6:15 am - 7:52 am
DEN
-
SAN
2h 37mnonstop
Frontier Logo
6:25 am - 10:05 am
SAN
-
DEN
2h 40mnonstop
$56Frontier
Fri, May 1 - Mon, May 4
Frontier Logo
10:29 pm - 12:01 am
DEN
-
SAN
2h 32mnonstop
Frontier Logo
6:25 am - 10:05 am
SAN
-
DEN
2h 40mnonstop
$58Frontier
Thu, May 7 - Tue, May 12
Frontier Logo
10:29 pm - 12:01 am
DEN
-
SAN
2h 32mnonstop
Frontier Logo
11:42 am - 3:23 pm
SAN
-
DEN
2h 41mnonstop
$59Frontier
Sun, Mar 29 - Thu, Apr 2
Frontier Logo
10:29 pm - 12:08 am
DEN
-
SAN
2h 39mnonstop
Frontier Logo
6:25 am - 10:05 am
SAN
-
DEN
2h 40mnonstop
$60Frontier
Tue, Feb 17 - Fri, Feb 27
Frontier Logo
8:00 pm - 9:41 pm
DEN
-
SAN
2h 41mnonstop
Frontier Logo
6:25 am - 10:00 am
SAN
-
DEN
2h 35mnonstop
$61Frontier
Mon, Mar 23 - Mon, Mar 30
Frontier Logo
10:29 pm - 12:08 am
DEN
-
SAN
2h 39mnonstop
Frontier Logo
9:18 pm - 12:47 am
SAN
-
DEN
2h 29mnonstop
$63Frontier
Thu, Apr 16 - Sun, Apr 19
Frontier Logo
10:29 pm - 12:01 am
DEN
-
SAN
2h 32mnonstop
Frontier Logo
6:25 am - 10:05 am
SAN
-
DEN
2h 40mnonstop
$64Frontier
Wed, Apr 1 - Sun, Apr 5
Frontier Logo
10:30 pm - 12:02 am
DEN
-
SAN
2h 32mnonstop
Frontier Logo
6:25 am - 10:05 am
SAN
-
DEN
2h 40mnonstop
$66Frontier
Wed, Apr 1 - Sun, Apr 5
Frontier Logo
10:30 pm - 12:02 am
DEN
-
SAN
2h 32mnonstop
Frontier Logo
6:25 am - 10:05 am
SAN
-
DEN
2h 40mnonstop
$67Frontier
Sat, Mar 28 - Tue, Mar 31
Frontier Logo
10:29 pm - 12:08 am
DEN
-
SAN
2h 39mnonstop
Frontier Logo
8:25 am - 11:59 am
SAN
-
DEN
2h 34mnonstop
$69Frontier
Useful Info

Good to know

Low seasonSeptember
Cheapest flight$37
Average price round-trip$154
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 7% 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 Alaska Airlines cost $348 on average, while Breeze Airways cost $366.

  • Which other airlines fly to San Diego?

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

  • 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 $57.
  • 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 April.

Frontier customer reviews

5.7
Fair3,052 verified ratings
4.6Food
6.6Crew
5.5Comfort
4.3Entertainment
6.0Boarding
Traveler rating:
Sort by:
A
8.0 Very good
There was no food and no entertainment, so I'm not sure why these are even in the survey, as my understanding is frontier does not ever offer food without a few, not even a snack, and there are no screens so unless the flight safety talk is our entertainment why ask how we liked it?. One of the flight attendants say in the back of the plane as people filed in to their seats, yelling orders about where to put baggage and telling people to hurry up. It was the least professional experience I've ever had on a flight.
D
10.0 Wonderful
Everything was great - service, facilities, process.
J
2.0 Poor
Awful. Scam company
H
10.0 Wonderful
Very well recently! Frontier is improving and less harrassing customer on luggages! Positive!
I
10.0 Wonderful
Excellent
C
10.0 Wonderful
Good for a budget airline! It was easy to get on, staff was really nice. Can’t say anything about the food or entertainment because it wasn’t available, which is fine.
C
4.0 Mediocre
I am writing to express my disappointment with my recent Frontier Airlines flight. I was charged $99 at the gate because my bag was said to be too large, yet once onboard there was no available overhead bin space, and I was required to place the bag under the seat in front of me anyway. This made the charge feel unnecessary and unfair. Additionally, before the flight even took off, I was asked to move from the seat I paid for into a middle seat so another passenger and her cat could have my seat to themselves. I was not offered compensation or an explanation for being moved from a paid seat. Between the unexpected bag fee and being forced to give up my seat, this experience fell well below acceptable customer service standards. I would appreciate a review of this situation and appropriate compensation.
M
10.0 Wonderful
Wonderful and friendly very helpful
A
2.0 Poor
It was costly and difficult to check in. $85 to take a small suitcase with me, carry on or checked and $75 on the return trip, Plus $25 if I didn't check my self in check in $25, because I couldn't do it on the kiosk. Small very uncomfortable seats, waited on the runway for near an hour each way. It was my worst flight to date.
A
2.0 Poor
The plane was straight dogshit
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
American Airlines flights to San Diego
Alaska Airlines flights to San Diego
United Airlines flights to San Diego
Southwest flights to San Diego
Delta flights to San Diego