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Find cheap flights from Ontario to San Francisco Bay Area from $47

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to San Francisco Bay Area departing on 7/7. 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
Sat 7/6
Sat 7/13

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Best San Francisco Bay Area Flight Deals

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

San Francisco
San Franciscononstop$44
San Jose
San Jose1 stop$96

Good to know

Low season

January

High season

May

Cheapest flight

$47
Best time to beat the crowds but there is an average 32% increase in price.
Most popular time to fly and prices are also 27% lower on average.
Flight from Ontario to San Francisco

FAQs - booking San Francisco Bay Area flights

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

    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 Ontario to San Francisco Bay Area.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco Bay Area from Ontario 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 Ontario to San Francisco Bay Area?

    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 San Francisco Bay Area with an airline and back to Ontario with another airline.

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

    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 San Francisco Bay Area from Ontario 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 San Francisco Bay Area

  • Looking for a cheap flight? 25% of our users found tickets from Ontario to the following destinations at these prices or less: San Francisco $39 one-way - $77 round-trip

Top 5 airlines serving from Ontario to San Francisco Bay Area

Need help choosing which airline to fly with from Ontario to San Francisco Bay Area? 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.
8.1
Breeze AirwaysOverall score based on 77 reviews
8.3Boarding
8.9Crew
6.8Food
8.1Comfort
6.5Entertainment
Airline reviews

The only thing that would make the experience better is a little more leg room and the overhead bins are very low. I hit my head when I was settling into the middle seat and was nervous about poking my eye on the corner of a lowered bin when I was deplaning.

8.0 ExcellentKaren, Apr 2024CAK - LAS
Read more about Breeze Airways reviews

The only thing that would make the experience better is a little more leg room and the overhead bins are very low. I hit my head when I was settling into the middle seat and was nervous about poking my eye on the corner of a lowered bin when I was deplaning.

It helps manage expectations to know that this is a discount airline. I brought my own snacks so that I wouldn't have to buy something if I got hungry or thirsty for soda during the flight. One of my seat mates was unaware that he would have to pay $4 for a Coke and was a bit upset. He hadn't listened to the flight attendant say "Drinks for purchase?". All of the employees I interacted with were friendly and professional. My one complaint is that the overhead bins are very low when they are open. I was heading for the middle seat and unexpectedly hit the top of my head on the bottom of the open overhead bin. The headrests were also a little uncomfortable. But overall, for the price, it was a decent value, and I would fly Breeze again.

Flight was on time. The crew was efficient and kind.

Did not like the fact that I was charged to take on a bag I usually put in the overhead

My flight was delayed, not by much.?very good communication during fest and waiting to board.

Communication with airline electronically was difficult. No number seemed available to talk to customer service.

What could have been better is if Discover credit card would be able to purchase food

Crew was inconsistent in instructions in advising passengers about seat backs during take off. Perfunctory announcements except from cabin.

The experience with Breeze was really great. The app makes managing flights easy. You can check in on there 24 hours in advance, and your boarding pass is there, too. The flight crew and the staff at both our airports were wonderful. Snacks and drinks were reasonably priced. The seats were very comfortable, they even had adjustable headrests on every seat. The only downside is not having entertainment or Wi-Fi available onboard.

The price is amazing. I was worried about how the flight would be as I never flew then. Seats were very comfortable. We had lots of legroom. The Akron airport was really nice. Overall it didn't have the stress we usually experience with flying. Highly recommend

It was really good and that's why we choose AA over other airlines.

Seats are uncomfortable but let room was adequate. The snack is pretty weak and the staff not particularly friendly.

We landed in San Diego from Fresno 10 min late and our gate was occupied. We waited OVER AN HOUR to get to the gate and didnt get any updates about what was happening until I asked. Then we were told it would be another 5 minutes....which turned into 25. My wife was waiting in cell phone lot over an hour and finally had to leave. It cost me $40 cab ride and a fight with my wife. THanks for nothing Alaska Air.

The flight was delayed for 2 hours and the last delay was not communicated and had to check manually.

Sat on tarmac for 30 minutes despite staring at three empty gates, one of which we eventually pulled into

Everything was great. Flight was on time with no issues. It was a short connecting flight so ww didn't have food offered. The gate we got off at was very close to our connecting flight gate so that was very easy.

Pilot warned us it was going to be bumpy, which I usually like when it is, but it wasn't, so I spent most of the flight unnecessarily wondering when it was going to get rough. Just can't win sometimes. Ha!

Flight was changed twice. Original flight was scheduled at 5:30pm. Weeks before flight, flight was changed to 7:00pm. On the date of flight, flight was delayed and departed at 9:00pm. This caused many problems and significantly affected our schedule at our destination.

They canceled the flight 30 minutes prior to departure without any heads up.

We had a very scary attempted landing in Palm Springs and were redirected to Ontario. It was a stressful flight.

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

Flighty delayed on boarding - then group 1 had to check their carry on bags but groups 3 and beyond could carry bags on - very inconvenient for weekend business trip with no checked baggage. Then delayed on the runway - before take off. No communication from pilot on why or how long. Wifi/Entertainment didn't work for 4+ flight. Upon arrival, attendants announced wrong carousel for baggage claim - everyone was waiting at the wrong place for their checked bags. This was a mess united!

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

The WiFi didn’t work and the seats are too close together. Very uncomfortable.

Flight was good and clean but delayed over an hour on the return flight.

It was nice! There was a very unhappy child in front of us and the flight attendant did a great job calming the child. I was impressed.

They stuck us with multiple extra fees. I will never fly spirit again

The guy with severe body odor sat next to me. For the whole duration of the flight it was a torture. The airline should have better policy on limiting people with bad body odor to board the flight. Passengers should not be the ones to endure bad odor for the whole duration of the flight. The airline should be e the one to ensure decent air quality for ever passenger.

They charged me 212.00 for a heavy check in bag at the gate. The pricing and process was so confusing - as if it was designed to purposefully gouge customers who need to board plane. That experience combined with the outrageous price charged will prevent me from ever flying Spirit again. And I’ll be sure to tell the story to anyone who cares to hear.

The text told me it was changed to Terminal E and Gate D5. But with no one on site to ask questions there was confusion on where to go as all the gates were E's. Then we took the skyline to the D area. We left to get something to eat. No announcement was made but my daughter happened to asked and they told her our gate was moved to D12. I will not fly Spirit again.

The agent at the check in desk was absolutely rude. The rest of the team after that was good, but the check in process at LAS was miserable. The woman at the desk spoke like we were stupid and was rude throughout the process.

Its so random that they only allow 40 pounds on checked bags when all airlines take 55. They then charge you for each 10 extra pounds, so my checked suitcase was $130 and the flight $30 ... its like whattt, im for sure not traveling with Spirit again

So bad. The check in process was laborious and the check in agent didn't seem to know how to manage the process efficiently and was confused about how to check in my son's sports equipment. The baggage fees were outrageous and so expensive. $90 for a carry on bag? And $200 additional for 2 check ins. The security lines were insanely long and the terminal was not very nice in the Spirit area. $5 for a water on board. It was my first and last time flying Spirit - I tried to save $ by flying them due to the accommodating schedule but I should have paid for Southwest, because it would've actually ended up less expensive due to the free bags with Southwest. There were no charging ports on the airplane, no wifi and really uncomfortable seating. The flight crew were great though, courteous and efficient in their boarding. Flight was delayed 1 hour, but we made up 15 minutes in flight.

My experience was better than expected. What I did find not so great was the seats. Very little room, they did not recline and the tray table was the size of a post card. There was no food to try, just standard snacks that you had to pay for and I don’t know of any entertainment. I would fly again even though everything was an upcharge. Flight was on time with little disturbance

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

Flight was delay 9hrs and nothing was provided at airport, had to go and get a room to sleep in, paid for Uber back and fort with no offers until we landed back home a 1hr later for a $75 voucher for a future flight.

9hrs delay and didn’t provided anything until after flight landed $75 voucher for fiuture travel no meals or anything.

Our flight was delayed an hour, then when we got to board our flight finally, we were waiting in our seats for take off for 45 minutes before it was communicated that there was a maintenance issue therefore we waited on the plane for over an hour while that was resolved. We did not get to Phoenix until almost 3 hours after we were originally supposed to. This was the first and last time I will be flying Frontier.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Terrible. Seats are bad and the baggage policy is inconsistent

Better than I expected but I did pay for a seat and carry on bags ahead of time.

Book cheap flights from Ontario to San Francisco Bay Area

Recent round-trip flight deals

6/19Wed
nonstopFrontier
1h 28mONT-SFO
6/23Sun
nonstopFrontier
1h 23mSFO-ONT
$66
7/5Fri
nonstopFrontier
1h 26mONT-SFO
7/7Sun
nonstopFrontier
1h 22mSFO-ONT
$67
6/22Sat
nonstopFrontier
1h 27mONT-SFO
6/23Sun
nonstopFrontier
1h 23mSFO-ONT
$68
6/21Fri
nonstopCitizenPlane
1h 28mONT-SFO
6/23Sun
nonstopCitizenPlane
1h 23mSFO-ONT
$182
8/10Sat
1 stopAmerican Airlines
5h 57mONT-SJC
8/17Sat
1 stopAmerican Airlines
5h 53mSJC-ONT
$224
8/13Tue
1 stopAmerican Airlines
5h 57mONT-SJC
8/19Mon
1 stopAmerican Airlines
5h 53mSJC-ONT
$225
8/13Tue
1 stopAlaska Airlines
7h 31mONT-OAK
8/14Wed
1 stopAlaska Airlines
7h 09mOAK-ONT
$294
7/18Thu
1 stopAlaska Airlines
7h 31mONT-OAK
7/23Tue
1 stopAlaska Airlines
12h 46mOAK-ONT
$328
8/23Fri
1 stopUnited Airlines
15h 12mONT-SJC
8/25Sun
2 stopsUnited Airlines
18h 31mSJC-ONT
$468
8/9Fri
1 stopUnited Airlines
15h 16mONT-SJC
8/11Sun
2 stopsUnited Airlines
17h 37mSJC-ONT
$489

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Recent one-way flight deals

7/7Sun
nonstopFrontier
1h 26mONT-SFO
$47
6/11Tue
nonstopFrontier
1h 28mONT-SFO
$49
8/10Sat
1 stopAmerican Airlines
6h 11mONT-SFO
$119
8/15Thu
1 stopAmerican Airlines
6h 14mONT-SFO
$120
9/4Wed
2 stopsAlaska Airlines
10h 39mONT-SFO
$146
7/24Wed
1 stopAlaska Airlines
7h 31mONT-OAK
$147
6/28Fri
nonstopUnited Airlines
1h 20mONT-SFO
$150
6/24Mon
nonstopUnited Airlines
1h 25mONT-SFO
$155
8/8Thu
1 stopDelta
5h 53mONT-SJC
$215
8/5Mon
1 stopDelta
6h 46mONT-SJC
$223

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Last minute flights from Ontario to San Francisco Bay Area

Last minute flight, train and bus deals

6/7Fri
nonstopFrontier
1h 28mONT-SFO
6/16Sun
nonstopFrontier
1h 23mSFO-ONT
$103
6/7Fri
nonstopFrontier
1h 28mONT-SFO
6/11Tue
nonstopFrontier
1h 23mSFO-ONT
$108
6/7Fri
multi-stopAmerican Airlines
6h 29mONT-SFO
8/12Mon
multi-stopAmerican Airlines
6h 08mSFO-ONT
$230
6/8Sat
multi-stopAmerican Airlines
6h 07mONT-SJC
6/11Tue
multi-stopAmerican Airlines
6h 02mSJC-ONT
$468
6/11Tue
multi-stopAlaska Airlines
27h 50mONT-OAK
6/26Wed
multi-stopAlaska Airlines
17h 59mOAK-ONT
$604
6/11Tue
multi-stopAlaska Airlines
27h 44mONT-OAK
6/26Wed
multi-stopAlaska Airlines
16h 40mOAK-ONT
$609
6/8Sat
multi-stopDelta
8h 39mONT-SJC
6/9Sun
multi-stopDelta
16h 13mSJC-ONT
$1,188
6/8Sat
multi-stopUnited Airlines
8h 29mONT-SJC
6/20Thu
multi-stopUnited Airlines
13h 48mSJC-ONT
$1,207
6/11Tue
multi-stopUnited Airlines
8h 34mONT-SJC
6/13Thu
multi-stopUnited Airlines
13h 48mSJC-ONT
$1,219
6/8Sat
multi-stopDelta
5h 49mONT-SJC
6/10Mon
multi-stopDelta
6h 17mSJC-ONT
$1,275

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Ontario - San Francisco Bay Area Flights

Departure:

Ontario (ONT)United States

Return flight deals:

San Francisco Bay Area - Ontario

Cabin classes:

$363
$153
$296
$37