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, Oct 29 - Sat, Oct 31
8:44 am - 10:03 amPHX Phoenix Sky Harbor Intl-SAN San Diego
1h 19mnonstop
7:33 pm - 9:05 pmSAN San Diego-PHX Phoenix Sky Harbor Intl
1h 32mnonstop
$56Frontier
Wed, Nov 4 - 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
$57Frontier
Wed, Oct 28 - Sat, Oct 31
8:52 am - 10:11 amPHX Phoenix Sky Harbor Intl-SAN San Diego
1h 19mnonstop
7:33 pm - 9:05 pmSAN San Diego-PHX Phoenix Sky Harbor Intl
1h 32mnonstop
$58Frontier
Tue, Nov 3 - Tue, Nov 10
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
$59Frontier
Thu, Oct 29 - Mon, Nov 2
8:44 am - 10:03 amPHX Phoenix Sky Harbor Intl-SAN San Diego
1h 19mnonstop
7:33 pm - 10:05 pmSAN San Diego-PHX Phoenix Sky Harbor Intl
1h 32mnonstop
$60Frontier
Thu, Oct 29 - Mon, Nov 2
8:44 am - 10:03 amPHX Phoenix Sky Harbor Intl-SAN San Diego
1h 19mnonstop
7:33 pm - 10:05 pmSAN San Diego-PHX Phoenix Sky Harbor Intl
1h 32mnonstop
$61Frontier
Thu, Oct 29 - Mon, Nov 2
8:44 am - 10:03 amPHX Phoenix Sky Harbor Intl-SAN San Diego
1h 19mnonstop
7:33 pm - 10:05 pmSAN San Diego-PHX Phoenix Sky Harbor Intl
1h 32mnonstop
$62Frontier
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
$63Frontier
Fri, Oct 30 - Mon, Nov 2
8:44 am - 10:03 amPHX Phoenix Sky Harbor Intl-SAN San Diego
1h 19mnonstop
7:33 pm - 10:05 pmSAN San Diego-PHX Phoenix Sky Harbor Intl
1h 32mnonstop
$64Frontier
Wed, Oct 28 - Sat, Oct 31
8:52 am - 10:11 amPHX Phoenix Sky Harbor Intl-SAN San Diego
1h 19mnonstop
7:33 pm - 9:05 pmSAN San Diego-PHX Phoenix Sky Harbor Intl
1h 32mnonstop
$65Frontier
Recent one-way Frontier flight deals to San Diego
Wed, Oct 21
11:22 am - 1:16 pmSFO San Francisco-SAN San Diego
1h 54mnonstop
$50Frontier
Fri, Jan 22
5:57 pm - 7:38 pmSFO San Francisco-SAN San Diego
1h 41mnonstop
$51Frontier
Thu, Nov 5
4:57 pm - 6:38 pmSFO San Francisco-SAN San Diego
1h 41mnonstop
$52Frontier
Fri, Oct 30
4:57 pm - 6:38 pmSFO San Francisco-SAN San Diego
1h 41mnonstop
$53Frontier
Tue, Nov 10
5:07 pm - 10:11 amSFO San Francisco-SAN San Diego
17h 04m1 stop Phoenix Sky Harbor Intl
$54Frontier
Tue, Dec 1
2:41 pm - 7:20 amSFO San Francisco-SAN San Diego
16h 39m1 stop Las Vegas Harry Reid Intl
$55Frontier
Thu, Dec 24
3:47 pm - 5:27 pmSFO San Francisco-SAN San Diego
1h 40mnonstop
$57Frontier
Tue, Nov 3
10:09 am - 3:58 pmPHX Phoenix Sky Harbor Intl-SAN San Diego
6h 49m1 stop Denver Intl
$58Frontier
Mon, Nov 23
5:33 pm - 7:11 pmSFO San Francisco-SAN San Diego
1h 38mnonstop
$58Frontier
Mon, Dec 7
11:55 am - 6:11 pmPHX Phoenix Sky Harbor Intl-SAN San Diego
7h 16m1 stop San Francisco
$59Frontier
Recent last minute Frontier flight deals to San Diego
Wed, Oct 14 - Wed, Dec 2
11:22 am - 1:16 pmSFO San Francisco-SAN San Diego
1h 54mnonstop
7:51 pm - 9:43 pmSAN San Diego-SFO San Francisco
1h 52mnonstop
$92Frontier
Tue, Oct 13 - Sat, Oct 31
11:22 am - 1:16 pmSFO San Francisco-SAN San Diego
1h 54mnonstop
10:56 am - 12:51 pmSAN San Diego-SFO San Francisco
1h 55mnonstop
$104Frontier
Tue, Oct 13 - Tue, Oct 20
11:22 am - 1:16 pmSFO San Francisco-SAN San Diego
1h 54mnonstop
3:14 pm - 5:03 pmSAN San Diego-SFO San Francisco
1h 49mnonstop
$116Frontier
Wed, Oct 14 - Wed, Oct 21
11:22 am - 1:16 pmSFO San Francisco-SAN San Diego
1h 54mnonstop
3:14 pm - 5:03 pmSAN San Diego-SFO San Francisco
1h 49mnonstop
$117Frontier
Tue, Oct 13 - Wed, Oct 14
11:22 am - 1:16 pmSFO San Francisco-SAN San Diego
1h 54mnonstop
3:14 pm - 5:03 pmSAN San Diego-SFO San Francisco
1h 49mnonstop
$119Frontier
Wed, Oct 14 - Wed, Oct 21
11:22 am - 1:16 pmSFO San Francisco-SAN San Diego
1h 54mnonstop
3:14 pm - 5:03 pmSAN San Diego-SFO San Francisco
1h 49mnonstop
$122Frontier
Thu, Oct 15 - Thu, Oct 29
11:22 am - 1:16 pmSFO San Francisco-SAN San Diego
1h 54mnonstop
10:48 am - 12:43 pmSAN San Diego-SFO San Francisco
1h 55mnonstop
$126Frontier
Wed, Oct 14 - Wed, Oct 21
11:22 am - 1:16 pmSFO San Francisco-SAN San Diego
1h 54mnonstop
3:14 pm - 5:03 pmSAN San Diego-SFO San Francisco
1h 49mnonstop
$127Frontier
Wed, Oct 14 - Wed, Oct 21
11:22 am - 1:16 pmSFO San Francisco-SAN San Diego
1h 54mnonstop
3:14 pm - 5:03 pmSAN San Diego-SFO San Francisco
1h 49mnonstop
$130Frontier
Wed, Oct 14 - Tue, Oct 20
11:22 am - 1:16 pmSFO San Francisco-SAN San Diego
1h 54mnonstop
3:14 pm - 5:03 pmSAN San Diego-SFO San Francisco
1h 49mnonstop
$131Frontier
Recent direct Frontier flight deals to San Diego
Thu, Oct 29 - Sat, Oct 31
8:44 am - 10:03 amPHX Phoenix Sky Harbor Intl-SAN San Diego
1h 19mnonstop
7:33 pm - 9:05 pmSAN San Diego-PHX Phoenix Sky Harbor Intl
1h 32mnonstop
$56Frontier
Wed, Nov 4 - 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
$57Frontier
Wed, Oct 28 - Sat, Oct 31
8:52 am - 10:11 amPHX Phoenix Sky Harbor Intl-SAN San Diego
1h 19mnonstop
7:33 pm - 9:05 pmSAN San Diego-PHX Phoenix Sky Harbor Intl
1h 32mnonstop
$58Frontier
Tue, Nov 3 - Tue, Nov 10
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
$59Frontier
Thu, Oct 29 - Mon, Nov 2
8:44 am - 10:03 amPHX Phoenix Sky Harbor Intl-SAN San Diego
1h 19mnonstop
7:33 pm - 10:05 pmSAN San Diego-PHX Phoenix Sky Harbor Intl
1h 32mnonstop
$60Frontier
Thu, Oct 29 - Mon, Nov 2
8:44 am - 10:03 amPHX Phoenix Sky Harbor Intl-SAN San Diego
1h 19mnonstop
7:33 pm - 10:05 pmSAN San Diego-PHX Phoenix Sky Harbor Intl
1h 32mnonstop
$61Frontier
Thu, Oct 29 - Mon, Nov 2
8:44 am - 10:03 amPHX Phoenix Sky Harbor Intl-SAN San Diego
1h 19mnonstop
7:33 pm - 10:05 pmSAN San Diego-PHX Phoenix Sky Harbor Intl
1h 32mnonstop
$62Frontier
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
$63Frontier
Fri, Oct 30 - Mon, Nov 2
8:44 am - 10:03 amPHX Phoenix Sky Harbor Intl-SAN San Diego
1h 19mnonstop
7:33 pm - 10:05 pmSAN San Diego-PHX Phoenix Sky Harbor Intl
1h 32mnonstop
$64Frontier
Wed, Oct 28 - Sat, Oct 31
8:52 am - 10:11 amPHX Phoenix Sky Harbor Intl-SAN San Diego
1h 19mnonstop
7:33 pm - 9:05 pmSAN San Diego-PHX Phoenix Sky Harbor Intl
1h 32mnonstop
$65Frontier
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 $50 one-way, and $81 round-trip on the route from San Francisco to San Diego. The most popular route is from Phoenix Sky Harbor Intl Airport to San Diego and the cheapest ticket found on this route in the last 5 days was $56 return.
How many direct flights does Frontier operate to San Diego every week?
Each week there are around 65 direct flights from within the United States to San Diego. The most common day for departures is Sunday, 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 $143. On the other hand, the most expensive day to fly is Sunday, where prices are $195 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 $154 on average.
Good to know
Low season | February |
|---|---|
High season | October |
Cheapest flight | $50 |
Average price round-trip | $233 |
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
Top tips for your flights to San Diego with Frontier
Frontier customer reviews
5.6
2,552 verified ratings
5.4Comfort
4.2Entertainment
6.5Crew
4.5Food
5.8Boarding
Traveler rating:
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Date
Great flight, no problems. I wish they would increase the checked bag weight limit. Packing was very stressful.
Excellent trip plane ride
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.
Great services
Greyhound of the skies...
Flight delayed 9 hours. On tarmac for over an hour after arrival. Will never book with Frontier under any circumstances ever again.
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.
Did not get on the flight, they had a gate change and my app never updated me! Trying to get flight credit
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
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
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Cabin classes available on flights to San Diego. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
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The most popular destinations for flights with Frontier according to clicks from KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
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Flights from all regions of United States to San Diego. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.
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The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.