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Find cheap flights from San Francisco to Ontario from C$ 122

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Ontario departing on 11/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Wed 29/5
Wed 5/6

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Best Ontario Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Toronto
Toronto1 stopC$ 316
Ottawa
Ottawa2 stopsC$ 574
London
London2 stopsC$ 787

Good to know

Low season

February

High season

July

Cheapest flight

C$ 122
Best time to beat the crowds (17% less expensive on average)
Most popular time to fly (9% more expensive on average)
Flight from San Francisco to Toronto Pearson Airport

FAQs - booking Ontario flights

  • How does KAYAK find such low prices on flights from San Francisco to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to San Francisco with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Ontario

  • Looking for a cheap flight? 25% of our users found tickets from San Francisco to the following destinations at these prices or less: Toronto C$ 297 one-way - C$ 392 round-trip
  • On average*, there is no price difference when choosing to fly in the morning or the evening on this flight route.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from San Francisco to Ontario

 
Need help choosing which airline to fly with from San Francisco to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.3
EVA AirOverall score based on 1554 reviews
8.0entertainment
8.6crew
7.9food
8.4boarding
8.2comfort
Airline reviews

Fast and efficient boarding. Flight was on time. Service was very good for our long flight. First time flying with this airline and I would highly recommend.

10.0 ExcellentDamian, Mar. 2024LAX - TPE
Read more about EVA Air reviews

Fast and efficient boarding. Flight was on time. Service was very good for our long flight. First time flying with this airline and I would highly recommend.

Eva Air's Business Class is pretty decent. With the given price, I think that the food can be better.

Pleasant, comfortable, and entertaining. All told, ZERO issues with it. And sadly, so far the flight was WAY more comfortable than the hellhole that is "Lambug Beach Resort" at Badian Beach!

It was a pleasant fly with Eva Air from NYC to Taipei. The crew were friendly and the food was exceeded my expectation.

Eva air is a good airline. The seats on the way to Taipei could have certainly been more comfortable, but all in all it was a pretty good experience.

Overall the flight was what might be expected for a long haul flight to Asia in economy class. The cabin crew was attentive and the food was good. Boarding was fairly fast and easy. The one thing I found frustrating was the EVA app. It is terrible. Trying to do anything on it was almost impossible.

EVA would not help with ticket issue since they were purchased through a travel agency. Even though it was EVA ticket stock. Travel agency Budget Air didn't reissue ticket after airline change which I didn’t learn until trying to checkin on Christmas Day and there was no contact number for the agency to help. I will never use Budget Air to purchase flight again and disappointed in EVA’s refusal to help. Thankfully just under 12 hrs before departure someone from the agency was available to reissue tickets. I was starting to think we would not be flying and the stress trying to resolve was completely unacceptable.

seamless check in/ friendly staff, food is good, always love flying Eva Air

Very uncomfortable and crowded seats in economy. Flight attendant refused request to move to nearby unused seat with more legroom because “It was more money for that seat”. It was also near impossible to reach airline directly by phone. Waits upwards of an hour and not very helpful customer service representatives after long wait. Cannot recommend this airline.

My experience with Eva sir was good except the long walk in LA Lex, that was inconvenient for my age,

I like the braised beef., miso soup,, and green tea. Very little choices of hollywood movies. The PA announcement in English was not very clear and very soft. I could hardly hear.

More updated movies & Chinese movies. The food sometimes overcooked. Prefer to have more neat snacks in between than just choose from the menu. Please change the menu every now and then. This is my second time flying within one year and the menu didn’t change at all!

Food is lagging. Very poor choice. Like vending machine fast food.

Please change the menu more often. The beef is not tender, more choice in ice cream flavor. Dessert is not good too.

Again I paid for an upgrade on my credit card didn’t get it need a refund. . American I not good at gettin in contact for refunds.

I didn’t like the check in process I had to check in at the counter took too much time . Didn’t give the upgrade my seat .

l enjoyed the variety of good and drink choices. The flight attendants were very quick and efficient to our needs.

Truly impressive service in the air. After the main meal, they have a delicious a la carte menu that you can order anytime until 1.5 hrs prior to landing. Flight crew were so pleasant and very efficient. Wish I could fly JAL more often!

Attentive crew, great service with regular rounds of drinks and trash collecting. Only complaint is the food, which was mediocre.

Japan airlines is excellent. I had a great flight with them, and they are the consummate professionals. I booked my flight through Kayak and they sent it on to Underpricer. That felt really scammy. My Oneworld number would not attach to the reservation and I could not choose a seat. I called Japan Airlines and got one but it was in the back. Later I drove to the airport and worked with the excellent agents there to find a better one. Later that day, I got a phone call from Underpricer trying to upsell me the option of choosing a seat. It felt like a Spirit Airlines level crappy move. The flight itself was exactly as nice as you would expect from JAL. The meal was good and the flight crew was awesome.

Very good , the weather was terrible, but i admired the professionality and politeness and care from the crew, and the excellent contition of the plane

My flight to Los Angeles was canceled Had to book another flight and you charged me extra $500 Very bad experience

Decent flight, staff was very good, especially with the turbulence during the flight due to weather. Comfort was about par with other airlines but since it was a quick flight, was not much of an issue for us.

Liked that I could pick my seat and have a special meal without an extra charge. Luggage is reasonable for overseas trip. What could have been better is boarding and leaving on time.

They were helpful, considerate with asking us for standby preboarding with our infant, gave us toys and excellent service onboard. They were always on time, even early boarding once! All our luggage arrived intact, and they even brought our baby car seat to oversized for us. We love China Airlines!

Staff is friendly, great variety of entertainment, check in a little messy but due to people not listening. Overall a pleasant experience. Would use again in the future.

It felt like a new plane. Decent leg room in economy, food was fine, and the plane didn’t feel super dry and uncomfortable.

Better training to have qualified crews and services. My flight was from around 12 midnight Friday Taipei to Vancouver. After two hours first meal (2:00 Am -8:00 ) no crew available for even asking for some water. I was even willing to pay for water. For breakfast after 8 hours the only drink was tea and coffee no water or juice.

3 of the 4 flights had delays despite the weather being fine, but still managed to make all connections

Ask flight attendant for water during flight and she was a little rude get the water.

I commend the flight attendants on our SFO-SIN flight who went above and beyond to provide us with extra snacks and food. This type of service makes the flight experience personal and awesome.

It was a great flight Food was great Crew was spectacular

In general good, but the machine seems to be long in operation and some functions were restricted as e. g. Adjusting of seats.

Wonderful service, planes and interior in great condition, very pleasant experience

People were so nice! Economy seats were small and cramped feeling for me. I’m slender and 6 feet tall

The singapore airline now compared before covid, I like the service before covid. SQ was the best of all airlines but now I am going to look for different airline if I am travelling in asia.

They close their counter so early. I had internet issues so I couldn’t check In online . I would have made the flight but their counter was closed 5 minutes before we arrived. No way of contacting them even though I had the confirmation number and tried to check in the night before on someone else’s phone. I tried calling their customer service with no pick up. Horrible experience, I’m very unhappy with them. I hope to never fly with them ever again. It costed me almost $900.

They are great with every aspect of customer service. Helped my elderly father and aided him with using the restroom.

Due to the delay of my first flight, my connecting flight with JetBlue was canceled by Singapore Airlines, but the JetBlue crew was very accommodating and rebooked a seat for me. The crew was very nice and had good attitude.

Left hr late & arrived 1hr late luggage was slow to be offloaded! The flight crew & food were good! Movie selection was ok!

Hated every minute of it. This flight should have only taken 1.5hrs but was delayed over 10hours. Now I am being told I cannot be compensated or refunded my ticket price or extra leg room, which I purchased but did not receive, because the airline is throwing the blame on the 3rd party I purchased tickets through and 3rd party putting the blame on airline. No one wants to help. They received their money and that's all they care about. Im going on 3 days of still trying to get to my final destination, had to cancel car rental, car insurance and hotel. Currently staying in airport until hotels open up. Thank you Lufthansa, Kayak, Underpricer and United for making this trip the worst ever.

Crew was great and did their best to make us comfortable and captain came out at the beginning to announce why the flight was delayed, weather situation up ahead, and kept us updated throughout the flight.

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Awful. I got stuck next to a person carrying a dog and behind someone with a dog. People need to board these dogs downstairs. The cabin is crowded enough with your pets

Packed in like sardines, very uncomfortable. Sitting the aisle my shoulder was rammed into numerous times by rushing flight attendants. Also flight was very cold.

Beverage and food services are excellent. We enjoy paying the extra for economy plus for the 3 inches more leg room to be exact.

Flight was delayed by 3 hours. The pilot made up 1 hour during the flight, but that made the wait at the airport 5 hours once you factor getting there 2 hours early.

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

Very uncomfortable seats and seat backs, and I am only 5’9”. Delayed due to crew issues, spent a long time with no ventilation. Teeny overhead bins. Wifi worked well. Arrived safely.

I was delighted that we were able to get on the 4:40 pm flight rather than our original booking at 6:55 pm!! Other than that, the flight was comfortable and landed early😊

Book cheap flights from San Francisco to Ontario

Recent round-trip flight deals

11/6Tue
1 stop
15h 13mSFO-YYZ
18/6Tue
1 stop
15h 24mYYZ-SFO
C$ 316
4/6Tue
1 stop
15h 28mSFO-YYZ
11/6Tue
1 stop
29h 07mYYZ-SFO
C$ 333
28/5Tue
1 stop
15h 35mSFO-YYZ
4/6Tue
1 stop
12h 42mYYZ-SFO
C$ 339
5/6Wed
1 stopFlair Airlines
17h 50mSFO-YKF
10/6Mon
1 stopFlair Airlines
15h 15mYKF-SFO
C$ 448
28/5Tue
1 stopFlair Airlines
17h 45mSFO-YKF
4/6Tue
1 stopFlair Airlines
15h 55mYKF-SFO
C$ 451
19/6Wed
1 stopSun Country Air
20h 47mSFO-YYZ
23/6Sun
1 stopSun Country Air
27h 41mYYZ-SFO
C$ 584
28/5Tue
2 stopsDelta
18h 34mSFO-YYZ
4/6Tue
2 stopsDelta
16h 26mYYZ-SFO
C$ 590
13/5Mon
1 stopUnited Airlines
15h 21mSFO-YOW
14/5Tue
1 stopUnited Airlines
16h 29mYOW-SFO
C$ 801
24/6Mon
1 stopUnited Airlines
14h 30mSFO-YOW
29/6Sat
1 stopUnited Airlines
18h 15mYOW-SFO
C$ 841
17/5Fri
2 stopsDelta
15h 35mSFO-YXU
28/5Tue
2 stopsDelta
12h 43mYXU-SFO
C$ 2,923

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Recent one-way flight deals

11/6Tue
1 stop
17h 28mSFO-YYZ
C$ 122
4/6Tue
1 stop
15h 28mSFO-YYZ
C$ 138
13/5Mon
1 stopFlair Airlines
17h 45mSFO-YKF
C$ 154
29/5Wed
1 stopFlair Airlines
18h 05mSFO-YYZ
C$ 156
4/7Thu
1 stopSun Country Air
16h 09mSFO-YYZ
C$ 257
30/5Thu
directPorter Airlines
5h 07mSFO-YYZ
C$ 264
19/6Wed
1 stopSun Country Air
20h 47mSFO-YYZ
C$ 287
12/5Sun
directPorter Airlines
5h 07mSFO-YYZ
C$ 288
27/5Mon
directUnited Airlines
4h 59mSFO-YYZ
C$ 328
30/6Sun
directUnited Airlines
4h 51mSFO-YYZ
C$ 387

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Last minute flights from San Francisco to Ontario

Last minute flight, train and bus deals

4/5Sat
direct
5h 07mSFO-YYZ
7/5Tue
multi-stop
16h 24mYYZ-SFO
C$ 456
4/5Sat
direct
5h 07mSFO-YYZ
8/5Wed
multi-stop
22h 43mYYZ-SFO
C$ 534
1/5Wed
multi-stopWestJet
10h 25mSFO-YYZ
6/5Mon
multi-stopWestJet
19h 09mYYZ-SFO
C$ 894
4/5Sat
directPorter Airlines
5h 07mSFO-YYZ
7/5Tue
directPorter Airlines
5h 37mYYZ-SFO
C$ 897
3/5Fri
multi-stopWestJet
13h 52mSFO-YYZ
8/5Wed
multi-stopWestJet
19h 09mYYZ-SFO
C$ 899
1/5Wed
directPorter Airlines
5h 07mSFO-YYZ
11/5Sat
directPorter Airlines
5h 37mYYZ-SFO
C$ 918
3/5Fri
multi-stopDelta
7h 46mSFO-YYZ
11/5Sat
multi-stopDelta
13h 01mYYZ-SFO
C$ 984
3/5Fri
multi-stopDelta
11h 36mSFO-YYZ
8/5Wed
multi-stopDelta
11h 17mYYZ-SFO
C$ 1,095
3/5Fri
multi-stopUnited Airlines
12h 34mSFO-YYZ
10/5Fri
multi-stopUnited Airlines
17h 14mYYZ-SFO
C$ 1,149
3/5Fri
multi-stopUnited Airlines
6h 49mSFO-YYZ
5/5Sun
multi-stopUnited Airlines
7h 24mYYZ-SFO
C$ 1,196

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San Francisco - Ontario Flights

Departure:

San Francisco (SFO)United States

Return flight deals:

Ontario - San Francisco

Cabin classes:

C$ 1,212
C$ 277