Cheap flights from Ontario to San Francisco

Round-trip
1 adult
Economy
From?
To?
Sat 9/25
Sat 10/2

Travel Restriction Alert

The COVID-19 (coronavirus) outbreak may impact travel from Ontario to San Francisco.
View current United States travel restrictions

Flight information for Ontario to San Francisco
(ONT to SFO)

Find info about flight duration, direct flights, and airports for your flight from Ontario to San Francisco
Best Price Found$40The best flight deal from Ontario to San Francisco found on momondo in the last 72 hours is $40
Fastest flight time1h 18mThe fastest flight from Ontario to San Francisco takes 1h 18m
Direct flightsNoneThere are no direct flights from Ontario to San Francisco. Popular non-direct route for this connection is Ontario Airport - San Francisco Airport.
Airports in San Francisco1 airportThere is 1 airport near San Francisco: San Francisco (SFO)

How to get the cheapest flight ticket from Ontario to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly from Ontario to San Francisco?

August

The cheapest time of year to fly to San Francisco from Ontario is August. Most expensive is November

What is the cheapest day to depart Ontario for San Francisco?

Saturday

The cheapest day of the week is typically Saturday. The most expensive is typically Monday

When is the cheapest time to fly from Ontario to San Francisco?

in the morning

Ontario to San Francisco flights are approximately 23% more expensive in the evening than in the morning

What is the cheapest airline that flies to San Francisco from Ontario?

Delta

Alaska Airlines, Delta, and JetBlue are the most popular carriers operating from Ontario to San Francisco

What is the cheapest Ontario to San Francisco flight route?

Ontario - San Francisco

Fly from Ontario to San Francisco for the best Ontario - San Francisco flight prices

How far in advance should you book Ontario to San Francisco flights?

31 days before

The cheapest time to buy a flight from Ontario to San Francisco is approximately 31 days to departure


Easily compare round-trip flights from Ontario to San Francisco

Below you can see the best fares for your round-trip flight route over the next three months. All fares were found on momondo this week. Browse the quickest and cheapest flights from Ontario to San Francisco by changing tabs
Frontier
Sep 30
ONT2:00 pmOntario
1h 24m
SFO3:24 pmSan Francisco
Oct 1
SFO7:35 amSan Francisco
1h 27m
ONT9:02 amOntario
Frontier
Oct 1
ONT5:23 amOntario
1h 24m
SFO6:47 amSan Francisco
Oct 4
SFO7:35 amSan Francisco
1h 27m
ONT9:02 amOntario
Frontier
Oct 1
ONT5:23 amOntario
1h 24m
SFO6:47 amSan Francisco
Oct 4
SFO7:35 amSan Francisco
1h 27m
ONT9:02 amOntario
Frontier
Oct 4
ONT5:23 amOntario
1h 24m
SFO6:47 amSan Francisco
Oct 7
SFO11:40 amSan Francisco
1h 33m
ONT1:13 pmOntario
Frontier
Sep 30
ONT2:00 pmOntario
1h 24m
SFO3:24 pmSan Francisco
Oct 7
SFO11:40 amSan Francisco
1h 33m
ONT1:13 pmOntario
Frontier
Oct 11
ONT5:21 amOntario
1h 28m
SFO6:49 amSan Francisco
Oct 14
SFO11:40 amSan Francisco
1h 33m
ONT1:13 pmOntario

Find the cheapest one-way flights from Ontario to San Francisco

If you're looking for one-way flights from Ontario to San Francisco, view some of our deals below provided by Frontier
Frontier
Sep 27
ONT5:23 amOntario
1h 24m
SFO6:47 amSan Francisco
Frontier
Oct 3
ONT2:19 pmOntario
1h 24m
SFO3:43 pmSan Francisco
Frontier
Dec 3
ONT6:39 amOntario
1h 25m
SFO8:04 amSan Francisco

Search last-minute flights to San Francisco from Ontario

Find and compare flight prices for your last-minute flight from Ontario to San Francisco
Multiple Airlines
Sep 26
ONT2:23 amOntario
1h 27m
SFO3:50 amSan Francisco
Sep 26
SFO12:02 pmSan Francisco
1h 22m
ONT1:24 pmOntario
Frontier
Sep 30
ONT2:00 pmOntario
1h 24m
SFO3:24 pmSan Francisco
Oct 1
SFO7:35 amSan Francisco
1h 27m
ONT9:02 amOntario
Frontier
Sep 27
ONT5:23 amOntario
1h 24m
SFO6:47 amSan Francisco
Oct 1
SFO7:35 amSan Francisco
1h 27m
ONT9:02 amOntario
Frontier
Sep 30
ONT2:00 pmOntario
1h 24m
SFO3:24 pmSan Francisco
Oct 7
SFO11:40 amSan Francisco
1h 33m
ONT1:13 pmOntario
Frontier
Sep 26
ONT2:19 pmOntario
1h 24m
SFO3:43 pmSan Francisco
Nov 1
SFO7:34 amSan Francisco
1h 33m
ONT9:07 amOntario
Frontier
Sep 26
ONT2:19 pmOntario
1h 24m
SFO3:43 pmSan Francisco
Oct 31
SFO12:05 pmSan Francisco
1h 33m
ONT1:38 pmOntario

Best airlines flying from Ontario to San Francisco

Compare and see reviews for airlines that fly from Ontario to San Francisco with momondo
AirlineRatingFree CancellationPrice
Alaska Airlines
PriceFrom $48
Free Cancellation
Rating
8.3
8.7

Boarding

8.5

Comfort

8.7

Crew

8.1

Entertainment

7.6

Food

Reviews

Great service

1 / 10
JetBlue
PriceFrom $49
Free Cancellation
Rating
7.0
7.3

Boarding

7.6

Comfort

7.9

Crew

7.2

Entertainment

6.8

Food

Reviews

Outdated media

1 / 10
Delta
PriceFrom $52
Free Cancellation
Rating
8.3
8.3

Boarding

8.5

Comfort

8.4

Crew

8.1

Entertainment

8.1

Food

Reviews

Great

1 / 10
American Airlines
PriceFrom $71
Free Cancellation
Rating
7.2
7.4

Boarding

7.1

Comfort

7.8

Crew

7.1

Entertainment

6.8

Food

Reviews

Flight attendant for first class is definitely not a morning person. Oh and the WiFi DID NOT WORK!

1 / 10
Spirit Airlines
PriceFrom $91
Free Cancellation
Rating
6.1
6.3

Boarding

5.8

Comfort

6.8

Crew

4.8

Entertainment

5.1

Food

Reviews

Building in 90 min connection when airline knows it takes 3 hours is a needless recipe for disaster.

1 / 10
United Airlines
PriceFrom $97
Free Cancellation
Rating
6.8
7.2

Boarding

6.6

Comfort

7.5

Crew

6.6

Entertainment

6.1

Food

Reviews

Not because the flight is going to Africa we can’t get better service on board

1 / 10
Southwest
PriceFrom $154
Free Cancellation
Rating
8.2
8.3

Boarding

8.2

Comfort

8.6

Crew

7.3

Entertainment

7.6

Food

Reviews

12 hours later still haven’t left the airport

1 / 10
JSX
PriceFrom $208
Free Cancellation
Rating
0.0
Linear Air Taxi
PriceFrom $3,843
Free Cancellation
Rating
0.0

  • Are airlines flying from Ontario to San Francisco offering flexible cancellation due to COVID-19?

    To ease the stress of booking flights, some of our airline partners flying from Ontario to San Francisco are responding to the global pandemic. The following airlines may have a flexible cancellation policy to help accommodate travelers: United Airlines, American Airlines, and Alaska Airlines.

  • How far is Ontario to San Francisco by plane?

    The straight-line distance from Ontario to San Francisco is 370.2 mi. In terms of flight time, this usually takes a little over 1h 24m.


Can I fly to San Francisco from Ontario right now?

Information is based on travel restrictions for travel to San Francisco within the United States

Most visitors from Ontario need to provide a negative COVID-19 test result and/or quarantine to enter San Francisco.

COVID-19 testing requirements
Visitors from Ontario must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to San Francisco.

Quarantine requirements
Visitors from Ontario are not required to quarantine after entering San Francisco.

Can I fly back to Ontario from San Francisco?

Returning to Ontario from San Francisco

COVID-19 testing requirements
Visitors from San Francisco must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Ontario.

Quarantine requirements
Visitors from San Francisco are not required to quarantine after entering Ontario.

If you are planning to travel to San Francisco at this time, it is recommended that you stay up to date on current restrictions and follow proper safety measures while in public.

Alternative routes for Ontario to San Francisco

Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Oakland, California to Los Angeles Flights
Fastest flight time1h 16m
Cheapest price$38
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Sacramento to Santa Ana Flights
Fastest flight time1h 28m
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Oakland, California to Santa Ana Flights
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Los Angeles to Oakland, California Flights
Fastest flight time1h 06m
Cheapest price$48
Oakland, California to San Diego Flights
Fastest flight time3h 33m
Cheapest price$66
Sacramento to San Diego Flights
Fastest flight time1h 28m
Cheapest price$66
Los Angeles to San Francisco Flights
Fastest flight time1h 19m
Cheapest price$67
San Francisco to Los Angeles Flights
Fastest flight time1h 12m
Cheapest price$67
Sacramento to Los Angeles Flights
Fastest flight time1h 25m
Cheapest price$76
Reno to Los Angeles Flights
Fastest flight time1h 14m
Cheapest price$78