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Find cheap Frontier flights to San Francisco from $28

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Flights Deals

Cheap Frontier Flight Deals to San Francisco

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

Recent round-trip Frontier flight deals to San Francisco

KAYAK's recommended round-trip Frontier deals departing in the coming months to San Francisco.
Discover the best prices for you by selecting your travel dates on KAYAK.
Frontier Logo
8:24 am - 10:02 amONT-SFO
1h 38mnonstop
Frontier Logo
8:34 am - 10:02 amSFO-ONT
1h 28mnonstop
$69Frontier
Find Deal
Mon, May 12 - Thu, May 15
Frontier Logo
7:28 pm - 9:00 pmSNA-SFO
1h 32mnonstop
Frontier Logo
3:45 pm - 5:20 pmSFO-SNA
1h 35mnonstop
$69Frontier
Find Deal
Mon, May 12 - Thu, May 15
Frontier Logo
8:24 am - 10:02 amONT-SFO
1h 38mnonstop
Frontier Logo
8:34 am - 10:02 amSFO-ONT
1h 28mnonstop
$75Frontier
Find Deal
Fri, May 16 - Sun, May 18
Frontier Logo
7:28 pm - 9:00 pmSNA-SFO
1h 32mnonstop
Frontier Logo
3:45 pm - 5:20 pmSFO-SNA
1h 35mnonstop
$75Frontier
Find Deal
Fri, May 16 - Mon, May 19
Frontier Logo
8:24 am - 10:02 amONT-SFO
1h 38mnonstop
Frontier Logo
10:11 pm - 11:36 pmSFO-ONT
1h 25mnonstop
$76Frontier
Find Deal
Fri, May 16 - Sat, May 24
Frontier Logo
7:26 pm - 8:56 pmSNA-SFO
1h 30mnonstop
Frontier Logo
1:07 pm - 2:47 pmSFO-SNA
1h 40mnonstop
$76Frontier
Find Deal
Fri, Aug 8 - Mon, Aug 11
Frontier Logo
9:41 pm - 11:11 pmONT-SFO
1h 30mnonstop
Frontier Logo
10:11 pm - 11:39 pmSFO-ONT
1h 28mnonstop
$77Frontier
Find Deal
Fri, May 30 - Sun, Jun 1
Frontier Logo
7:28 pm - 9:00 pmSNA-SFO
1h 32mnonstop
Frontier Logo
1:09 pm - 2:44 pmSFO-SNA
1h 35mnonstop
$77Frontier
Find Deal
Mon, May 19 - Thu, May 29
Frontier Logo
9:41 pm - 11:11 pmONT-SFO
1h 30mnonstop
Frontier Logo
10:11 pm - 11:39 pmSFO-ONT
1h 28mnonstop
$78Frontier
Find Deal
Thu, May 29 - Sun, Jun 1
Frontier Logo
7:22 pm - 8:54 pmSNA-SFO
1h 32mnonstop
Frontier Logo
1:09 pm - 2:42 pmSFO-SNA
1h 33mnonstop
$78Frontier
Find Deal
Mon, Jun 9 - Mon, Jun 16
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Good to know

Low seasonJanuary
High seasonMay
Cheapest flight$28
Average price round-trip$301
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly and prices are also 3% 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

  • Which other airlines fly to San Francisco?

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

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

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

Frontier customer reviews

5.9
FairBased on 3,287 verified guest reviews
6.2Boarding
4.6Entertainment
5.6Comfort
4.8Food
6.8Crew
Pros +
Cons -
  • On the ticket it said checked bag. (in 1044 reviews)
Show reviews that mention
Traveler rating:
Sort by:
A
2.0 Poor
The reps working at the airport counter were dumber than a second coat of paint.
D
2.0 Poor
Less chaos and timely departure
A
4.0 Mediocre
My costume jewelry was stolen out of my bag. Got to airport and my bag weighed 45 pounds- 5 pounds over cost me $100 Long lines in tier one. No entertainment No WiFi no free drinks or snacks
A
6.0 Okay
Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.
A
2.0 Poor
The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.
A
2.0 Poor
The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.
A
10.0 Wonderful
It was a short flight so no food or entertainment….
N
2.0 Poor
Frontier is a scam! Do not sell this airline.
G
8.0 Very good
Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.
A
10.0 Wonderful
Best ever app invented
Read more about Frontier

Everything you need to know for your flight to San Francisco

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