SFO

Find cheap Frontier flights to San Francisco from $37 - Compare and Save

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

Recent round-trip Frontier flight deals to San Francisco

Sat, Sep 5 - Mon, Sep 7
Frontier Logo
8:48 am - 10:15 am
ONT
-
SFO
1h 27mnonstop
Frontier Logo
9:33 am - 11:02 am
SFO
-
ONT
1h 29mnonstop
$97Frontier
Thu, Jul 23 - Sat, Jul 25
Frontier Logo
7:07 pm - 8:45 pm
LAX
-
SFO
1h 38mnonstop
Frontier Logo
8:23 pm - 9:59 pm
SFO
-
LAX
1h 36mnonstop
$99Frontier
Thu, Sep 3 - Mon, Sep 7
Frontier Logo
8:48 am - 10:15 am
ONT
-
SFO
1h 27mnonstop
Frontier Logo
9:33 am - 11:02 am
SFO
-
ONT
1h 29mnonstop
$100Frontier
Sat, Jul 18 - Sat, Aug 1
Frontier Logo
7:07 pm - 8:45 pm
LAX
-
SFO
1h 38mnonstop
Frontier Logo
8:23 pm - 9:59 pm
SFO
-
LAX
1h 36mnonstop
$100Frontier
Sat, Jul 18 - Sat, Jul 25
Frontier Logo
7:07 pm - 8:45 pm
LAX
-
SFO
1h 38mnonstop
Frontier Logo
8:23 pm - 9:59 pm
SFO
-
LAX
1h 36mnonstop
$101Frontier
Sat, Sep 5 - Mon, Sep 7
Frontier Logo
7:07 pm - 8:40 pm
LAX
-
SFO
1h 33mnonstop
Frontier Logo
8:23 pm - 9:54 pm
SFO
-
LAX
1h 31mnonstop
$102Frontier
Wed, Jul 22 - Mon, Jul 27
Frontier Logo
7:07 pm - 8:45 pm
LAX
-
SFO
1h 38mnonstop
Frontier Logo
8:23 pm - 9:59 pm
SFO
-
LAX
1h 36mnonstop
$103Frontier
Fri, Oct 2 - Sat, Oct 10
Frontier Logo
9:15 am - 10:47 am
LAX
-
SFO
1h 32mnonstop
Frontier Logo
7:30 pm - 9:01 pm
SFO
-
LAX
1h 31mnonstop
$104Frontier
Thu, Sep 24 - Mon, Sep 28
Frontier Logo
2:26 pm - 3:56 pm
ONT
-
SFO
1h 30mnonstop
Frontier Logo
12:31 pm - 2:00 pm
SFO
-
ONT
1h 29mnonstop
$105Frontier
Thu, Aug 27 - Mon, Aug 31
Frontier Logo
7:07 pm - 8:40 pm
LAX
-
SFO
1h 33mnonstop
Frontier Logo
8:23 pm - 9:54 pm
SFO
-
LAX
1h 31mnonstop
$105Frontier
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Good to know

Low seasonJanuary
Cheapest flight$37
Average price round-trip$299
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 10% increase in price.
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, Alaska Airlines, American Airlines, Breeze Airways, Breeze Airways, Southwest and Alaska Airlines.

  • 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

  • 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 July and prices are highest at this time. The cheapest month to fly is January.

Frontier customer reviews

5.6
Fair2,858 verified ratings
6.5Crew
5.9Boarding
5.4Comfort
4.5Food
4.3Entertainment
Traveler rating:
Sort by:
K
6.0 Okay
Crew was kind of grumpy and there was no beverage service at all. Sodas were $4. Disappointing.
L
6.0 Okay
There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.
M
10.0 Wonderful
All went as expected
I
10.0 Wonderful
Excellent service.
D
10.0 Wonderful
Everything just worked
J
8.0 Very good
Great
D
10.0 Wonderful
No internet and no complimentary drinks
A
6.0 Okay
The staff at the check in counter was so rude. Made you feel Incompetent
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
Read more about Frontier

Everything you need to know for your flight to San Francisco