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ONT - SFO

Find cheap flights from Ontario to San Francisco from $24

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 departing on 3/26. 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
Thu 4/18
Thu 4/25

Search hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to San Francisco.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to San Francisco.
In the last 7 days travelers have searched 47,600,107 times on KAYAK, and here is why:

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Cheap flight deals from Ontario to San Francisco

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario 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.
7:53 am - 9:20 amONT-SFO
1h 27mnonstop
10:15 am - 11:44 amSFO-ONT
1h 29mnonstop
$48Frontier
Find Deal
Tue, Apr 16 - Wed, Apr 17
12:48 pm - 2:18 pmONT-SFO
1h 30mnonstop
10:10 am - 11:39 amSFO-ONT
1h 29mnonstop
$49Frontier
Find Deal
Tue, Apr 9 - Tue, Apr 16
7:58 am - 9:25 amONT-SFO
1h 27mnonstop
5:15 am - 6:36 amSFO-ONT
1h 21mnonstop
$53Frontier
Find Deal
Wed, May 8 - Wed, May 29
12:48 pm - 2:18 pmONT-SFO
1h 30mnonstop
3:19 pm - 4:47 pmSFO-ONT
1h 28mnonstop
$54Frontier
Find Deal
Tue, Apr 2 - Wed, Apr 3
12:48 pm - 2:18 pmONT-SFO
1h 30mnonstop
10:10 am - 11:39 amSFO-ONT
1h 29mnonstop
$56Frontier
Find Deal
Tue, Apr 9 - Tue, Apr 16
7:58 am - 9:25 amONT-SFO
1h 27mnonstop
10:15 am - 11:44 amSFO-ONT
1h 29mnonstop
$57Frontier
Find Deal
Wed, Apr 17 - Wed, Apr 24
5:59 pm - 7:27 pmONT-SFO
1h 28mnonstop
10:10 am - 11:39 amSFO-ONT
1h 29mnonstop
$58Frontier
Find Deal
Sat, Apr 20 - Mon, Apr 22
5:59 pm - 7:27 pmONT-SFO
1h 28mnonstop
10:10 am - 11:39 amSFO-ONT
1h 29mnonstop
$59Frontier
Find Deal
Sat, May 4 - Mon, May 6
6:00 am - 7:29 amONT-SFO
1h 29mnonstop
9:30 pm - 11:04 pmSFO-ONT
1h 34mnonstop
$159United Airlines
Find Deal
Wed, Apr 17 - Wed, Apr 24
6:00 am - 7:29 amONT-SFO
1h 29mnonstop
9:30 pm - 11:04 pmSFO-ONT
1h 34mnonstop
$198United Airlines
Find Deal
Tue, Apr 16 - Tue, Apr 16

Flights from Ontario to San Francisco - Travel Insights & Trends

Get data-powered insights and trends into flights from Ontario to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Ontario to San Francisco?

The average price of all flights from Ontario to San Francisco clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to San Francisco on a Thursday and more expensive on a Wednesday. On your return trip to Ontario, you should consider flying back on a Tuesday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ontario to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Ontario to San Francisco is February, where tickets cost $127 on average. On the other hand, the most expensive months are November and June, where the average cost of tickets is $167 and $158 respectively.

How far in advance should I book a flight from Ontario to San Francisco?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Ontario to San Francisco, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Ontario to San Francisco, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 83 days before departure.

Which airlines provide the cheapest flights from Ontario to San Francisco?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Ontario to San Francisco found on KAYAK was with Frontier for $24. Frontier proposed a round-trip connection from $48 and United Airlines from $159.

Which airlines fly non-stop between Ontario and San Francisco?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Ontario to San Francisco.
There are 2 airlines that fly nonstop from Ontario to San Francisco. They are Frontier and United Airlines. The cheapest airline for this route is Frontier, with the best one-way deal found costing $40. On average, the best prices for this route can be found at Frontier.

How many flights are there between Ontario and San Francisco per day?

Each day, there are between 4 and 6 nonstop flights that take off from Ontario and land in San Francisco, with an average flight time of 1h 33m. The most common departure time is 6:00 pm and most flights take off in the morning. Each week, there are 35 flights. The most frequent day of departure is Saturday, when 17% of all weekly flights depart. The fewest flights depart on a Sunday.

Which cabin class options are there for flights between Ontario and San Francisco?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Ontario to San Francisco take?

A direct flight to San Francisco will take on average 1h 26m to travel the 363 miles flying distance from Ontario.

What’s the earliest departure time from Ontario to San Francisco?

Early birds can take the earliest flight from Ontario at 5:58 am and will be landing in San Francisco at 7:34 am.

What’s the latest departure time from Ontario to San Francisco?

If you prefer to fly at night, the latest flight from Ontario to San Francisco jets off at 6:42 pm and lands at 8:23 pm.

Good to know

Low season

January

High season

October

Cheapest flight

$24
Best time to beat the crowds but there is an average 24% increase in price.
Most popular time to fly and prices are also 13% lower on average.
Flight from Ontario to San Francisco

When to book flights from Ontario to San Francisco

Are your dates flexible? Find out the best times to travel from Ontario to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to San Francisco

  • What other airports can I board my flight to SFO other than ONT?

    Apart from ONT, Ontario is served by John Wayne Airport (SNA) and Long Beach Airport (LGB). Of the two, SNA is closer to Ontario than LGB making it the best option if you are looking for something close-by.

  • Where can I breastfeed my child at ONT?

    If you want to breastfeed your baby at ONT, you can do so in one of ONT's two operational nursing rooms. In terminal 2 there’s a nursing room located across from gate 207 and in terminal 4 there is one found across gate 407.

  • Does SFO have a place I can relax once my flight lands?

    Once you land at SFO, you can enjoy the rejuvenating services at one of the three locations operated by XpresSpa. In terminal 3, XpresSpa has a locationnear boarding area E, while the other is found in the boarding area F. The third location is found in the international terminal boarding area G.

  • Can I rent a car at SFO?

    At SFO, you can easily rent a car once you land. To do so, you’ll have to visit the airport’s Car Rental Center, which houses rental agencies like Thrifty, Enterprise, Budget, and Dollar. To get to the airport’s Car Rental Center, you’ll board its AirTrain Blue Line which will take you right there.

  • What is the cheapest flight from Ontario to San Francisco?

    In the last 3 days, the lowest price for a flight from Ontario to San Francisco was $24 for a one-way ticket and $48 for a round-trip.

  • Do I need a passport to fly between Ontario and San Francisco?

    A passport is not required to fly from Ontario to San Francisco.

  • Which airlines offer Wi-Fi service onboard planes from Ontario to San Francisco?

    Alaska Airlines, JetBlue, Delta, American Airlines, and Japan Airlines offer inflight Wi-Fi service on the Ontario to San Francisco flight route.

  • Which aircraft models fly most regularly from Ontario to San Francisco?

    The Embraer 175 (Enhanced Winglets) is the aircraft model that flies most regularly on the Ontario to San Francisco flight route.

  • Which airline alliances offer flights from Ontario to San Francisco?

    Star Alliance is the only airline alliance operating flights between Ontario and San Francisco.

  • On which days can I fly direct from Ontario to San Francisco?

    There are nonstop flights from Ontario to San Francisco on a daily basis.

  • Which is the best airline for flights from Ontario to San Francisco, Alaska Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from Ontario to San Francisco are Alaska Airlines and United Airlines. With an average price for the route of $114 and an overall rating of 8.1, Alaska Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $243 and an overall rating of 7.4.

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

    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.

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

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

    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 with an airline and back to Ontario with another airline. Booking your flights between Ontario and SFO can sometimes prove cheaper using this method.

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

    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 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 a cheap flight from ONT to San Francisco

  • Looking for a cheap flight? 25% of our users found flights on this route for $55 or less one-way and $100 or less round-trip.
  • To pass through the security checkpoints at Ontario International Airport (ONT), you’ll need to budget a good amount of time. On many occasions, travelers have missed their flights at this airport after being held up at its checkpoints. To avoid finding yourself in a similar situation, the day you’re set to fly to San Francisco International Airport (SFO) from ONT, you should get to the airport at least 2 hours before your flight.
  • If you want to withdraw some cash before departing from ONT, you can do so without hassle from one of the airport's several ATMs. These ATMs are located on the upper and lower levels of terminals 2 and 4, near the front entrance to the international terminal, and in the airport’s car rental facility.
  • While waiting for your flight to San Francisco at ONT, you can purchase a meal of your choice at one of the airport's numerous restaurants. In terminal 2, you can eat at Wolfgang Puck Pizza, Cross Grain Brewhouse, or Harvest & Grounds. In terminal 4, you can eat at Rock & Brews, Wahoo’s Fish Taco, or Coffee Bean & Tea Leaf.
  • If you need to do some work or fax documents once you land at San Francisco International Airport (SFO), you should check out SFO’s business center. Located in the main hall of the international terminal, the center operates from 8 a.m. to 8:30 p.m.
  • In case you want to leave some of your luggage at SFO before proceeding with your journey, you’ll be happy to hear about SFO’s Airport Travel Agency which offers luggage storage services. They are located in the main hall of the international terminal.
See more tips

Prefer to fly non-stop from Ontario to San Francisco?

Find which airlines fly direct from Ontario to San Francisco, which days they fly and book direct flights.

Nonstop departures

Ontario to San Francisco

Monday

Air Canada, Emirates, Frontier, +1 more

Air Canada, Emirates, +2 more

Tuesday

Air Canada, Emirates, Frontier, +2 more

Air Canada, Emirates, +3 more

Wednesday

Air Canada, Emirates, Frontier, +2 more

Air Canada, Emirates, +3 more

Thursday

Air Canada, Emirates, Frontier, +2 more

Air Canada, Emirates, +3 more

Friday

Air Canada, Emirates, Frontier, +1 more

Air Canada, Emirates, +2 more

Saturday

Air Canada, Emirates, Frontier, +1 more

Air Canada, Emirates, +2 more

Sunday

Air Canada, Emirates, Frontier, +2 more

Air Canada, Emirates, +3 more

See more direct flights

Nonstop returns

San Francisco to Ontario

Monday

Air Canada, Frontier, United Airlines

Air Canada, Frontier, +1 more

Tuesday

Air Canada, Copa Airlines, Frontier, +1 more

Air Canada, Copa Airlines, +2 more

Wednesday

Air Canada, Copa Airlines, Frontier, +1 more

Air Canada, Copa Airlines, +2 more

Thursday

Air Canada, Frontier, United Airlines, +1 more

Air Canada, Frontier, +2 more

Friday

Air Canada, Copa Airlines, Frontier, +1 more

Air Canada, Copa Airlines, +2 more

Saturday

Air Canada, Frontier, United Airlines

Air Canada, Frontier, +1 more

Sunday

Air Canada, Copa Airlines, Frontier, +2 more

Air Canada, Copa Airlines, +3 more

See more direct flights
See more direct flights

Top 5 airlines serving from Ontario to San Francisco

Need help choosing which airline to fly with from Ontario to San Francisco? 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 KAYAK reviews.
8.1
Alaska AirlinesOverall score based on 9147 reviews
73food
81overall
83boarding
79comfort
86crew
74entertainment
Airline reviews

Great ! The counter staffs in Boston helped me to wrap my broken luggage with a plastic bag to prevent my stuffs falling out.

Read more about Alaska Airlines

Great ! The counter staffs in Boston helped me to wrap my broken luggage with a plastic bag to prevent my stuffs falling out.

I arrived at 7:15 for an 8:30am flight. The winds in Burbank were keeping all flights down for the morning. What ensued next was absolute chaos, poor communication and chaos. I had booked a flight last minute because my boyfriends father was dying and o needed to be there immediately. There was absolutely no consideration for communication about what was happening with our flight after there was discovered to be a mechanical error. There was no mention that vouchers had been sent by email For food and I ended up wasting money on my lunch that was horrible. I literally bought the food when I had been emailed about a voucher. . I sat there now at 1:45 and tried to get some answers because the time was ticking. Your lady was so helpful and rushed me to get a flight out of United. I showed up to sfo 6+ hours late and was able to say goodbye to his father. But it was just a horribly communicated day. Please do better

Both of my flights were delayed. This is the 2nd week in a row that Alaska has been delayed. Not a great experience.

Super easy on both flights. Alaska is my go to airline!

Pretty bad. Delayed flight that potentially could have caused missed connection. Misplaced luggage, inadequate response.

Great experience with Alaska Airlines. The staff members were, kind, helpful, friendly and professional.

Flight was very dirty. The magazine was a dirty mess. When asked for a replacement it never came. Poor quality flight attendants.

Bad. The fight was late and they gave a ridiculous $12 stipend. Better give something or nothing. $12 is ridiculous.

Alaska seems to be pretty no frills: no real snack even for a 7 hr flight, no TV screens, and cramped seating. But the price was right and staff was good.

So fantastic! Everyone was pleasant. The snacks were good. I will definitely be taking Alaska airlines again.

Great experience overall. Check in at Austin was congested as they only have about 6 check in kiosks, one was broken, and there was a lot of Spring Break travelers.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Everything was very good other than I had selected a specific seat when I booked the flight and they changed it once I checked-in the day before my flight. I was still in first class but lost my aisle seat for a window seat. Being tall, the aisle offers more comfort so I always select an aisle seat.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Crew was not friendly when I went to request a seat change.

Really impressive staff at airport and on plane, especially given how busy it was

Was a great smooth flight from Detroit to San Diego.

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

Crew was great. However the seat I had would not recline and stay put. It would spring back to upright. Hopefully they can check the seats and maintain them. Otherwise the plane is clean and the crew is very friendly.

Boarding in Seattle is always a mess. Sat in Deltas new domestic first class cabin. Everything was great except I found the seat cushion to be fairly uncomfortable. I’m a bigger guy so take that into mind (6’2” / 300 lbs.). Crew was meh.

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

Flight delayed and moved to another gate. Got a text message updating the gate as final boarding finished. Missed flight, fighting for my refund

Prior to boarding we were told the flight was still on time up until about 20 minutes after the scheduled departure time. Details on the new departure time and gate were not provided to us in a timely fashion and we were lead to board a flight to Pittsburgh only to realized upon scanning my boarding pass that it was the wrong flight when signage at the gate said Providence. However, once on board the plane was comfortable and staff courteous and nice.

Perfect. Even got a screwdriver in Pitt to fix my sons luggage. Awesome airline.

I was not able to buy food in the flight. They refer to include your Credit card in the APP, and if you are not from USA (i have a credit card form Canada) it is not possible

United airline kept delaying our flight back to Phoenix for 8 hours before they cancelled it! If they know that we are not flying out for whatever the reason is, why did they keep lying to us for hours. We could find another flight earlier or even find a hotel with a shuttle. But cancellation at about midnight was not fun. We stayed in the airport all night till the following morning when we bought an Alaska tickets to go back to Phoenix. Total of 14 hours in the airport.

Poor seating comfort, seat cushion too thin, very uncomfortable. My luggage didi not make the flight due to equipment change. At least. United had it delivered the next day. I was without my toilet items for one day.

My experience is based on one crew member. I had found my seat and sat down but there was a gentleman to claimed to the flight attendant I was in his seat. She then came to me and curtly said, "I need your ticket!" No hi, no excuse me may I see your boarding pass? NOTHING! I was taken aback by her attitude and she repeated herself, "your ticket?!?!" I calmly responded with ok, here you go. Only to discover the gentleman was looking at the wrong boarding pass. She gave me back my ticket with no apology. She then was curt with another man who was putting his coat in the overhead bin, already helped by another flight attendant who said it was fine. She realizes it's ok and then asks him if he drinks. The look on the man's face was priceless. She said she was going to comp him drinks. He gets offered a comp drink for a coat as well as an apology, and I got no apology.

Flight cancelled because of the grounded 737s. United was good about it and got us onto a later Alaska Airlines flight to Oakland (not San Francisco as originally intended). Had to go through security again and my wife dropped her MacBook Pro, which broke, a $2,500 whoopsie. But we made it home.

Delays, excuses, delays, and more delays. This company is BROKEN.

Horrible. Delayed on both planes several times. No attempt to fix it

I contacted both carriers months beforehand to change the cabin (booked in April) but to no avail (united asked to contact Swiss since it was their equipment, Swiss told me to reach out to united). So yeah… My seat was pretty worn down, legroom on 27K was more than enough, but still economy seating so, getting to know your neighbours was easy. According to ground staff, the flight was massively overbooked- and this showed. I ordered a gluten free meal beforehand (which was honoured) but for breakfast got a bread roll and croissant 🤷🏼‍♂️ The connection itself is great. Leaving SFO late PM to arrive at ZRH in the afternoon makes it easier to get re adjusted again. However, and since I’ve flown this connection a couple of times in the past, I will rather deal with one carrier only and include a layover on the east coast.

United requires seat selection in order for those booking together to stay together.

Delays!!! Maintain your planes so your customers don’t have to sit on their assess for over an hour on the tarmac!! Also, United app is buggy. Videos did not load. Overall a miserable experience. Flight crew was awesome though.

The check in at the airport was awful. Told I need to pay for a bag. The item was taken at screening. I went back to get my $ back and they gave me a coupon with a QR code that doesn’t work. Worst costumer service ever!!!!!

4 hour delay because they used our aircraft to fly a different segment (per the captain)

Lost baggage on my connecting flight. 24 hours later, still no update on my bags.

I had to cancel within 1hour of the reservation an they put you through hell to . no live customer service desk. I'm handy caped and they make it almost impossible to cancel. They are steeling my money. You should not have that airline on your site. Contact me and I will give you all info. Of what the are doing to me just notable treatment they are set up like that to take people

The flight was delayed and I had to cancel because I would have missed my connection and there were no other flights for the next two days. They also lost my bag!!

My first time to fly Frontier and loved it! Boarding was super easy as we only had personal items. Crew was helpful and funny and the plane was clean. Pilot was also great at landing the plane smoothly.

absolutely horrific. delayed flights, overbooking. over charging. nightmare service beyond words. stay away.

late late late late no accountability no refund no adjustment no reasonable solution

My husband didn't get boarded on this flight. He was asked to pay $50 extra by the Frontier staff to get two boarding passes for check-in at the Las Vegas airport. He refused to pay this extra $50 charge and tried to do check-in online by himself but it seemed to be late with only 7 mins left. It ended up that my daughter and my husband missed the 7-minute time window. They had to take the next non-direct flight which took more than 12 hours from Las Vegas to San Francisco, a very poor experience for them.

This isna terribly run airlines. If you're one minute late, they will deny your ticket. Don't waste your time or money

Book cheap flights from Ontario to San Francisco

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Ontario to San Francisco found on KAYAK in the last 72 hours.
3/26Tue
nonstopFrontier
1h 30mONT-SFO
$24
4/10Wed
nonstopFrontier
1h 27mONT-SFO
$25
3/26Tue
2 stops
17h 45mONT-SFO
$95
4/2Tue
2 stops
17h 45mONT-SFO
$101
5/4Sat
nonstopUnited Airlines
1h 28mONT-SFO
$128
4/11Thu
nonstopUnited Airlines
1h 29mONT-SFO
$137
4/10Wed
2 stopsAlaska Airlines
8h 48mONT-SFO
$147
4/17Wed
2 stopsAlaska Airlines
16h 23mONT-SFO
$152
4/11Thu
1 stopAmerican Airlines
6h 12mONT-SFO
$181
3/28Thu
1 stopAmerican Airlines
6h 23mONT-SFO
$214

Search by stops

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Last minute flights from Ontario to San Francisco

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Ontario to San Francisco that are departing in the next 10 days.
3/21Thu
nonstopFrontier
1h 33mONT-SFO
3/27Wed
nonstopFrontier
1h 28mSFO-ONT
$93
3/20Wed
nonstopFrontier
1h 30mONT-SFO
4/2Tue
nonstopFrontier
1h 28mSFO-ONT
$95
3/22Fri
nonstopFrontier
1h 30mONT-SFO
3/26Tue
nonstopFrontier
1h 28mSFO-ONT
$97
3/20Wed
nonstopFrontier
1h 30mONT-SFO
4/1Mon
nonstopFrontier
1h 25mSFO-ONT
$99
3/22Fri
nonstopFrontier
1h 30mONT-SFO
3/25Mon
nonstopFrontier
1h 25mSFO-ONT
$105
3/22Fri
nonstopUnited Airlines
1h 36mONT-SFO
3/24Sun
nonstopUnited Airlines
1h 31mSFO-ONT
$264
3/22Fri
multi-stopAmerican Airlines
5h 27mONT-SFO
3/24Sun
multi-stopAmerican Airlines
5h 34mSFO-ONT
$272
3/21Thu
nonstopUnited Airlines
1h 40mONT-SFO
3/24Sun
nonstopUnited Airlines
1h 31mSFO-ONT
$324
3/23Sat
multi-stopAmerican Airlines
6h 23mONT-SFO
3/25Mon
multi-stopAmerican Airlines
5h 43mSFO-ONT
$330
3/19Tue
nonstopUnited Airlines
1h 36mONT-SFO
3/23Sat
nonstopUnited Airlines
1h 31mSFO-ONT
$369

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Ontario - San Francisco Flights

Departure:

Ontario (ONT)United States

Destination:

San Francisco (SFO)United States

Return flight deals:

San Francisco - Ontario

Cabin classes:

$371
$1,369
$730
$44

Compare transportation modes for Ontario to San Francisco

Average priceAverage duration
Flights$7861h 27m
Buses$9712h 22m