Cheap flights from Ontario to San Francisco from $37

Round-trip
1 adult
Economy
From?
To?
Tue 6/28
Tue 7/5

Deals available from 900+ travel sites.

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

$37

Fastest flight time

1h 22m

Direct flights

Fri and Sat

Airports in San Francisco

1 airport
The best one-way flight to San Francisco from Ontario in the past 72 hours is $37. The best round-trip flight deal from Ontario to San Francisco found on momondo in the last 72 hours is $109.
The fastest flight from Ontario to San Francisco takes 1h 22m
Direct flights go from Ontario to San Francisco on Friday and Saturday. Airlines offering direct flights are: United Airlines and Air Canada.
There 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?

January

The cheapest time of year to fly to San Francisco from Ontario is January. Most expensive is June

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

Wednesday

The cheapest day of the week is typically Wednesday. The most expensive is typically Sunday

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

at noon

Ontario to San Francisco flights are approximately 31% more expensive in the evening than at noon

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

Juneyao Airlines

Alaska Airlines, Breeze Airways, and Frontier 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?

23 days before

The cheapest time to buy a flight from Ontario to San Francisco is approximately 23 days to departure

When you’re planning your trip from Ontario to San Francisco, the most popular airport-to-airport route is Ontario Airport to San Francisco Airport. You may be looking for an airport near Ontario Airport to depart from when traveling to San Francisco and luckily, there are options! You can try Los Angeles Airport which is located in Los Angeles, Santa Ana J. Wayne/Orange Cnty Airport which is located in Santa Ana, or Long Beach Municipal Airport which is located in Long Beach. When traveling from Ontario, it is helpful to have an alternative airport to fly into when you land in San Francisco. Good options for arrival airports in San Francisco, you can try Oakland Airport (in Oakland), San Jose Airport (in San Jose), or Santa Rosa Sonoma County Airport (in Santa Rosa). The cheapest route from Ontario to San Francisco is LAX — OAK with an average price of $56 RT during the month of June.

Los Angeles Airport (LAX) to San Francisco Airport (SFO)$87
Search Flight Deals
Santa Ana J. Wayne/Orange Cnty Airport (SNA) to San Francisco Airport (SFO)$131
Search Flight Deals
Los Angeles Airport (LAX) to Oakland Airport (OAK)$56
Search Flight Deals
Los Angeles Airport (LAX) to San Jose Airport (SJC)$98
Search Flight Deals
Los Angeles Airport (LAX) to Santa Rosa Sonoma County Airport (STS)$198
Search Flight Deals
Ontario Airport (ONT) to San Francisco Airport (SFO)$108
Search Flight Deals

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 19
ONT7:59 amOntario
1h 28m
SFO9:27 amSan Francisco
Sep 22
SFO11:17 amSan Francisco
1h 34m
ONT12:51 pmOntario
Multiple Airlines
Sep 11
ONT2:05 pmOntario
1h 28m
SFO3:33 pmSan Francisco
Sep 14
SFO6:52 amSan Francisco
1h 24m
ONT8:16 amOntario
United Airlines
Jul 27
ONT2:00 amOntario
1h 22m
SFO3:22 amSan Francisco
Jul 30
SFO6:40 pmSan Francisco
1h 31m
ONT8:11 pmOntario
Frontier
Sep 8
ONT1:36 pmOntario
1h 28m
SFO3:04 pmSan Francisco
Sep 11
SFO11:46 amSan Francisco
1h 34m
ONT1:20 pmOntario
Frontier
Sep 19
ONT7:59 amOntario
1h 28m
SFO9:27 amSan Francisco
Sep 22
SFO11:17 amSan Francisco
1h 34m
ONT12:51 pmOntario
Frontier
Sep 12
ONT7:59 amOntario
1h 28m
SFO9:27 amSan Francisco
Sep 15
SFO11:17 amSan Francisco
1h 34m
ONT12:51 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, Southwest and United Airlines
Frontier
Sep 8
ONT1:36 pmOntario
1h 28m
SFO3:04 pmSan Francisco
United Airlines
Jul 13
ONT2:00 amOntario
1h 22m
SFO3:22 amSan Francisco
Southwest
Aug 3
ONT3:20 pmOntario
4h 20m
1 stop
SFO7:40 pmSan Francisco

Search last-minute flights to San Francisco from Ontario

Find and compare round-trip flight prices for your last-minute flight from Ontario to San Francisco
Frontier
Jun 30
ONT6:18 pmOntario
9h 34m
1 stop
SFO3:52 amSan Francisco
Jul 5
SFO6:48 pmSan Francisco
8h 17m
1 stop
ONT3:05 amOntario
United Airlines
Jun 28
ONT2:00 amOntario
1h 22m
SFO3:22 amSan Francisco
Jul 27
SFO6:35 pmSan Francisco
1h 31m
ONT8:06 pmOntario
Multiple Airlines
Jun 28
ONT3:50 amOntario
8h 20m
1 stop
SFO12:10 pmSan Francisco
Jun 28
SFO6:48 pmSan Francisco
8h 17m
1 stop
ONT3:05 amOntario
American Airlines
Jun 28
ONT12:48 pmOntario
5h 31m
1 stop
SFO6:19 pmSan Francisco
Jul 6
SFO8:06 amSan Francisco
3h 51m
1 stop
ONT11:57 amOntario
Frontier
Jul 1
ONT5:46 pmOntario
10h 06m
1 stop
SFO3:52 amSan Francisco
Jul 10
SFO6:49 pmSan Francisco
8h 20m
1 stop
ONT3:09 amOntario
United Airlines
Jul 3
ONT9:47 amOntario
1h 28m
SFO11:15 amSan Francisco
Jul 6
SFO6:42 amSan Francisco
1h 32m
ONT8:14 amOntario

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
Juneyao AirlinesPriceFrom $12Free CancellationRating
0.0
Search Juneyao Airlines flights
FrontierPriceFrom $29Free CancellationRating
6.2
6.4

Boarding

5.8

Comfort

7.0

Crew

4.7

Entertainment

5.0

Food

Reviews

A little less than an hour late but could've been worse. Boarding super smooth Helpful crew #Impressed

1 / 10
Search Frontier flights
Alaska AirlinesPriceFrom $38Free CancellationRating
8.0
8.2

Boarding

7.9

Comfort

8.5

Crew

7.2

Entertainment

7.2

Food

Reviews

No snacks served, only water beverage. Waited on runway for 20 minutes after landing since another plane was at our gate.

1 / 10
Search Alaska Airlines flights
JetBluePriceFrom $41Free CancellationRating
6.9
7.1

Boarding

7.4

Comfort

7.7

Crew

7.0

Entertainment

6.5

Food

Reviews

Love the early arrival. In flight wifi was fiddly and confusing.

1 / 10
Search JetBlue flights
United AirlinesPriceFrom $93Free CancellationRating
7.2
7.5

Boarding

7.1

Comfort

8.0

Crew

6.9

Entertainment

6.6

Food

Reviews

Smooth flight

1 / 10
Search United Airlines flights
Breeze AirwaysPriceFrom $104Free CancellationRating
9.1
9.7

Boarding

8.5

Comfort

10.0

Crew

5.7

Entertainment

7.4

Food

Reviews

Would travel Breeze again. Crew was polite and the plane was clean and on time.

1 / 5
Search Breeze Airways flights
JSXPriceFrom $208Free CancellationRating
0.0
Search JSX flights
American AirlinesPriceFrom $237Free CancellationRating
7.1
7.4

Boarding

7.1

Comfort

8.0

Crew

6.8

Entertainment

6.4

Food

Reviews

American Airline's is always great with me.

1 / 10
Search American Airlines flights
Linear Air TaxiPriceFrom $3,843Free CancellationRating
0.0
Search Linear Air Taxi flights
  • United Airlines Flights From Ontario to San Francisco

    United Airlines flight deals from Ontario to San Francisco start from $93 round-trip. Over the 20 United Airlines flights for this route in a normal week, average airfare is usually $217 round-trip - but some users have found much cheaper deals with momondo.


Frontier flights from Ontario to San Francisco

Our best Frontier deals on Ontario to San Francisco flight tickets
Frontier
Sep 19
ONT7:59 amOntario
1h 28m
SFO9:27 amSan Francisco
Sep 22
SFO11:17 amSan Francisco
1h 34m
ONT12:51 pmOntario
Frontier
Sep 8
ONT1:36 pmOntario
1h 28m
SFO3:04 pmSan Francisco
Sep 11
SFO11:46 amSan Francisco
1h 34m
ONT1:20 pmOntario
Frontier
Sep 19
ONT7:59 amOntario
1h 28m
SFO9:27 amSan Francisco
Sep 22
SFO11:17 amSan Francisco
1h 34m
ONT12:51 pmOntario

United Airlines flights from Ontario to San Francisco

Our best United Airlines deals on Ontario to San Francisco flight tickets
United Airlines
Jul 27
ONT2:00 amOntario
1h 22m
SFO3:22 amSan Francisco
Jul 30
SFO6:40 pmSan Francisco
1h 31m
ONT8:11 pmOntario
United Airlines
Sep 1
ONT2:00 amOntario
1h 22m
SFO3:22 amSan Francisco
Sep 3
SFO6:40 pmSan Francisco
1h 31m
ONT8:11 pmOntario
United Airlines
Sep 11
ONT2:00 amOntario
1h 21m
SFO3:21 amSan Francisco
Sep 14
SFO4:35 amSan Francisco
1h 25m
ONT6:00 amOntario

  • 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, Frontier, and Juneyao 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 20m.



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
Los Angeles to San Francisco Flights
Fastest flight time1h 17m
Cheapest price$85
San Francisco to Los Angeles Flights
Fastest flight time1h 18m
Cheapest price$84
Santa Ana to San Francisco Flights
Fastest flight time1h 20m
Cheapest price$129
San Francisco to Santa Ana Flights
Fastest flight time1h 29m
Cheapest price$133
San Jose to Los Angeles Flights
Fastest flight time1h 23m
Cheapest price$98
Oakland, California to Los Angeles Flights
Fastest flight time1h 19m
Cheapest price$56
San Francisco to San Diego Flights
Fastest flight time1h 30m
Cheapest price$117
Los Angeles to Oakland, California Flights
Fastest flight time1h 13m
Cheapest price$56
Los Angeles to San Jose Flights
Fastest flight time1h 10m
Cheapest price$97
Oakland, California to San Diego Flights
Fastest flight time1h 20m
Cheapest price$44
San Diego to San Francisco Flights
Fastest flight time1h 29m
Cheapest price$115
Sacramento to Los Angeles Flights
Fastest flight time1h 25m
Cheapest price$116

Similar Ontario to San Francisco flights

Flexible with your destination? Broaden your search and find flights similar to your Ontario to San Francisco route

Why use momondo?

It is quick and easy to find Ontario to San Francisco flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to San Francisco that suits you.

Flights from Ontario to San Francisco with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to San Francisco.

Yes momondo offers price alerts on flights to San Francisco from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


Here's why travelers choose to use momondo
Flexible Travel
momondo understands the need for flexibility and we have a filter specifically for flights with no change fees.
Expert Insights
Data driven insights designed to help you find a great flight deal. From the cheapest time to depart to how far in advance to book.
Price Alerts
Track the price of your preferred flight route and be notified when it changes.