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Cheap Frontier Flight Deals to San Francisco

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip Frontier flight deals to San Francisco

Fri, Oct 23 - Fri, Oct 30
Frontier Logo
12:01 pm - 1:32 pmONT  Ontario-SFO San Francisco
1h 31mnonstop
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6:02 pm - 7:28 pmSFO  San Francisco-ONT Ontario
1h 26mnonstop
$60Frontier
Wed, Oct 21 - Mon, Oct 26
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7:03 pm - 8:38 pmLAX  Los Angeles-SFO San Francisco
1h 35mnonstop
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7:25 pm - 9:01 pmSFO  San Francisco-LAX Los Angeles
1h 36mnonstop
$61Frontier
Fri, Oct 23 - Mon, Oct 26
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12:01 pm - 1:32 pmONT  Ontario-SFO San Francisco
1h 31mnonstop
Frontier Logo
6:02 pm - 7:40 pmSFO  San Francisco-ONT Ontario
1h 38mnonstop
$61Frontier
Fri, Oct 2 - Mon, Oct 5
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12:07 pm - 1:43 pmONT  Ontario-SFO San Francisco
1h 36mnonstop
Frontier Logo
6:02 pm - 7:36 pmSFO  San Francisco-ONT Ontario
1h 34mnonstop
$64Frontier
Fri, Oct 23 - Fri, Oct 23
Frontier Logo
12:01 pm - 1:32 pmONT  Ontario-SFO San Francisco
1h 31mnonstop
Frontier Logo
6:02 pm - 7:40 pmSFO  San Francisco-ONT Ontario
1h 38mnonstop
$65Frontier
Fri, Oct 23 - Mon, Oct 26
Frontier Logo
12:01 pm - 1:32 pmONT  Ontario-SFO San Francisco
1h 31mnonstop
Frontier Logo
6:02 pm - 7:40 pmSFO  San Francisco-ONT Ontario
1h 38mnonstop
$66Frontier
Fri, Oct 2 - Sun, Oct 4
Frontier Logo
12:07 pm - 1:43 pmONT  Ontario-SFO San Francisco
1h 36mnonstop
Frontier Logo
6:02 pm - 7:36 pmSFO  San Francisco-ONT Ontario
1h 34mnonstop
$67Frontier
Fri, Oct 2 - Mon, Oct 5
Frontier Logo
12:07 pm - 1:43 pmONT  Ontario-SFO San Francisco
1h 36mnonstop
Frontier Logo
6:02 pm - 7:36 pmSFO  San Francisco-ONT Ontario
1h 34mnonstop
$71Frontier
Fri, Oct 2 - Fri, Oct 2
Frontier Logo
12:07 pm - 1:43 pmONT  Ontario-SFO San Francisco
1h 36mnonstop
Frontier Logo
6:02 pm - 7:36 pmSFO  San Francisco-ONT Ontario
1h 34mnonstop
$74Frontier
Tue, Oct 13 - Thu, Nov 5
Frontier Logo
7:03 pm - 8:38 pmLAX  Los Angeles-SFO San Francisco
1h 35mnonstop
Frontier Logo
9:14 am - 10:46 amSFO  San Francisco-LAX Los Angeles
1h 32mnonstop
$75Frontier
Useful Info

KAYAK's insights & trends for San Francisco flights with Frontier

Get data-powered insights and trends into Frontier flights to San Francisco 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 Francisco?

The cheapest month for Frontier flights to San Francisco is February, where tickets cost $147 (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 $254 and $243 respectively.

How far in advance should I book Frontier flights to San Francisco?

For the absolute cheapest price on Frontier, our data suggests you should book 4 weeks before departure.

What is the cheapest flight to San Francisco with Frontier?

The cheapest airline ticket to San Francisco from the United States with Frontier in the last 5 days was $40 one-way, and $60 round-trip on the route from Ontario to San Francisco. The most popular route is from Seattle to San Francisco and the cheapest ticket found on this route in the last 5 days was $131 return.

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

Each week there are around 105 direct flights from within the United States to San Francisco. The most common day for departures is Sunday, with 20% of flights taking off on this day.

What is the cheapest day to fly to San Francisco?

Based on KAYAK data, the cheapest day to fly to San Francisco is Friday where tickets can be as cheap as $197. On the other hand, the most expensive day to fly is Sunday, where prices are $239 on average.

What is the cheapest time of day to fly to San Francisco with Frontier?

The cheapest time of day to fly to San Francisco with Frontier is generally in the morning, when flights cost $204 on average.

Good to know

Low season

January

Cheapest flight

$40

Average price round-trip

$254
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Ontario to San Francisco
(price for this month)

When to book flights with Frontier to San Francisco

Average price per month
Flight prices as travel date approaches

FAQs for flying to San Francisco with Frontier

  • Is Frontier cheaper than other airlines flying to San Francisco?

    With an average return price of $430, Frontier is cheaper than United Airlines and Alaska Airlines when it comes to flights to San Francisco. However, the cheapest airline flying to San Francisco is Breeze Airways, with an average return price of $428.

  • Which other airlines fly to San Francisco?

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

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

    On average, Frontier flights to San Francisco cost $430 for a round-trip.

  • Which airport do Frontier flights to San Francisco fly into?

    You’ll fly into San Francisco Airport when flying to San Francisco with Frontier.

Top tips for your flights to San Francisco with Frontier

  • The cheapest flight to San Francisco with Frontier found on KAYAK in the last 2 weeks departed from Dallas/Fort Worth Airport and cost $206.
  • If you’re intending to fly with Frontier, book your flight to San Francisco at least 2 weeks before departure to ensure a below-average price.
  • High season for flights to San Francisco with Frontier is October and prices are highest at this time. The cheapest month to fly is January.

Frontier customer reviews

5.6
Fair2,600 verified ratings
6.5Crew
5.9Boarding
4.2Entertainment
4.5Food
5.4Comfort
Traveler rating:
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A
2.0 Poor
Flight delayed 9 hours. On tarmac for over an hour after arrival. Will never book with Frontier under any circumstances ever again.
N
2.0 Poor
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.
J
2.0 Poor
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
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
K
2.0 Poor
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
J
2.0 Poor
3+ hour delay on a direct flight is never ideal.
A
2.0 Poor
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!!!
W
4.0 Mediocre
No reclining seats
A
8.0 Very good
Friendly service. No charges for phones.
N
8.0 Very good
Great services
Read more about Frontier

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