SFO - ONT

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SFO — ONT
Dec 2 — Dec 91
Round-trip
1 adult
Economy
0 bags
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Fri 12/2
Fri 12/9

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Good to know

Low season

February

High season

June

Cheapest flight

$21

Average price round-trip

$146

Good deal round-trip

$117

Good deal one-way

$59
Best time to beat the crowds with an average 44% drop in price.
Most popular time to fly with an average 47% increase in price.
Flight from San Francisco to Ontario
(avg. price over the last 2 weeks)
or less
or less

When to book flights from San Francisco to Ontario

Estimated round-trip price
Average price per month
Flight prices as travel date approaches

Top tips for finding a cheap flight from SFO to Ontario

  • Looking for a cheap flight? 25% of our users found flights on this route for $59 or less one-way and $117 or less round-trip.
  • The cheapest flight from San Francisco to Ontario was found 24 days before departure, on average.
  • Book at least 2 weeks before departure in order to get a below-average price.
  • High season is considered to be May, June and July. The cheapest month to fly is February.
  • Morning departure is around 25% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for booking flights from San Francisco to Ontario

Top airlines flying San Francisco to Ontario

Scores according to KAYAK customer reviews
7.0
United AirlinesOverall score based on 70608 reviews
7.4Boarding
7.0Comfort
7.7Crew
6.6Entertainment
6.5Food
Airline reviews
Cons: "Not social distanced full flight"
Read more about United Airlines
Cons: "Not social distanced full flight"
Pros: "Flight attendant was good"
Cons: "Everything else needed improvement"
Pros: "I eventually got to San Francisco. I missed my flight to Lihue and had to stay in the airport all night."
Cons: "I eventually got to San Francisco. I missed my flight to Lihue and had to stay in the airport all night."
Cons: "The flight was delayed, the first most important part is to depart on time keeping in mind the customers schedule as well that are travelling with the airline. No communication between the airline and ground department, was not happy at all and probably not fly unites again. Also they charge bags?"
Pros: "Wifi is expensive but at least it was available."
Cons: "Seats are uncomfortable."
Pros: "A quick flight between the two cities."
Cons: "After we all boarded the plane, there was an issue to be resolved. This meant we were stuck on the plane, mostly in our seats, for an hour before we took off. This meant there were numerous people on our flight who either missed or had to run to their next flights."
Pros: "The crew was wonderful"
Cons: "My flight was severely delayed."
Pros: "Crew were very hospitable. Seating and take off moved at a good pace"
Cons: "Entertainment was limited. Smaller plane / less space"
Cons: "Getting to San Francisco flight was canceled, make a line for 3.30 hours to let us know what they were going to do with us, they give the place to go at 3 a.m with not directions were to take a bus , later someone come and told us the bus stop running at that time and I have to go upstairs to take a taxi, I was alone and not use to be alone at that time never in my live I had to pretend I was afraid. Of course the hotel only take you until 12pm so I spend so many hours in the airport waiting for re ticketing they told us to be at 6pm we wait and I got my ticket leaving at 9.45pm but the crew come one hour and half late. From Panama to Lima flight was late . I had a conference very important to be Saturday morning, I lost my investment and relationships with the company I was going to start a business there excuse was they couldn’t relay on my punctuality, honestly. I got there more than a day and half LATE. If you ask me how was my trip I will tell you horrible and I can’t recommend anybody, this company doesn’t have any personality at all"
Pros: "Arrived a little early!"
Cons: "7/8 size Brazilian airplane."
Cons: "Late to board. Slow to run through safety. Late late late"
Pros: "Service Cleanliness Food Entertainment Boarding"
Cons: "Length of Flight"
Cons: "An extra agent who was rude was having passengers check size of their bags and we had to check our carry on that we had fit above on previous 3 flights. Her statement to us was : “If you don’t like it we’ll have you checked on to another flight tomorrow morning”. She seemed to stop passengers she could intimidate, I’m not used to being treated rudely by service providers! I’m sure they wanted to reduce the passenger loading time, but rudeness is not acceptable!"
Pros: "Very smooth fligh and very friendly and helpful staff"
Cons: "The seats were extremely crammed and there were no movies or shows without purchase"
Pros: "Everything ran on time and the staff was very friendly."
Pros: "Although there was a slight delay, the flight was pleasant and the service very nice. We got twice something to drink and a snack. For the short flight, quite remarkable."
Cons: "Everyting was fine"
Cons: "San Francisco to Ontario Delay for 10 min Then another dealy for 30 min After we board we had to waite inside the air craft for Cataring company to delever food for first classe"
Pros: "Boarding Crew Leg room Entertainment"
Cons: "Snacks"
Pros: "No delays. No problems"
Cons: "There should be more free food."
Cons: "Other than sitting in the airport for 4 hour and changing to 3 different gate and not getting in till 7:30. Need I say more"
Pros: "American Airlines"
Cons: "Dear United Airlines, It is my dearest wish that reading the following inflicts upon you at least a fraction of the stress, frustration, and pain that I have been through traveling with you today- you absolutely abhorrent excuse for a company. Due to your incomparable incompetence my arrival was inexcusably delayed almost 12 hours. An account follows: For a company who's customer service is already hanging by a very thin thread you would think that you would be doing everything to make your flights as smooth and pleasant as possible. Shall I elaborate on the utter frustration and boredom of being trapped in the San Francisco airport facing not one, not two, but what became SEVEN delays? Delays that have been caused by runway maintenance- a condition which someone in your company would have known about well before I got to the airport and that you simply did not plan for. A almost FOUR HOUR delay that could have been easily avoided if you just had things together and scheduled your planes around the affected runways. And let's not forget the additional delay caused when your flight crew simply couldn't be found to come to the gate so we could start getting underway! But no, I think the absolutely outstanding quintessential experience that defines flying with United airlines is this: After the above delays myself and my fellow passengers were finally able to board our flight- only to be told by the captain that there would be another brief delay while we waited for ANOTHER crew member because one of the pilots was near the end of their union hours. We sit on the plane stuck for another 20 minuets or so, only to be told they can't find anyone, and can we please get off the plane because our WHOLE FLIGHT is CANCELED. The kiosk I get to try and fix this is uncrowded but understaffed and run by clearly undertrained employees. The ones I'm dealing with keep having to ask each other for help, and give advice/plans that contradict one another. One of theme even takes what seems to be a personal call while 'assisting' me. When I finally get ahold of a supervisor I have to plead to get the next flight out of this godforsaken place, which I am reluctantly given as its with one of your competitors. Talking with other customer and airport staff is sounds very much like you are delaying/canceling flights for your own personal gain or at least not correcting flights around the situation to squeeze more money from the situation) it becomes quite clear that you are not only still incapable of accepting any real measure of accountability but entirely disgracefully unorganized.  Almost 12 hours later I do finally make it home- thanks to American Airlines.  Only to have the utter displeasure of one last interaction with United wherein when I pick up my bag your employees insist that I was delayed due to the weather and it wasn't your fault. It was entirely absolutely your fault."
Pros: "The Crew attention was nice and very proffessional. Good coffee"
Cons: "We are very tired and the airplain isn't comfortable."
Cons: "Very uncomfortable seats, got delayed on the return trip again. Got home very late."
Pros: "Great, friendly service Smooth flight"
Pros: "Plane wasn't full"
Cons: "Coffee grounds in the bottom of my cup Seats way too small for a normal person much less for Someone with extra."
Pros: "N/A"
Cons: "Kept me keep waiting for aircraft for 4 hours and toward the end told me that the flight got cancelled. Then they scheduled me to the 10:45pm flight, and the aircraft didn't come in till 12:40am. I've been waiting at the airport for more than 13 hours"
Cons: "the plane was cold early in the morning. I was feeling cold in the plane."
Cons: "It was a very small plane."
Pros: "Easy quick boarding - attendants seemed to watch and keep the misc items from going into the overhead."
Cons: "Being woken up to see if I wanted water or food"
Cons: "Plane got super delayed last minute without notice until arriving there at the gate."
Pros: "Free new release movies available for free. Pretty good for a domestic flight. Lots of choices to choose from. Staffs were friendly, helpful, and attentive."
Cons: "No spaces left for carry-on luggage, even if I was able to put mine away. I felt bad for those after me."
Pros: "okay"
Cons: "okay because it was short"
Pros: "The view and legroom was nice."
Cons: "I collect disability each month so I am on a very tight budget. The Spanish speaking woman that pushed my wheelchair told me that I can bring my water bottles full of water through the metal detectors. I asked if she could take me somewhere to pour them out and refill them on the other side. They threw them away at the metal detector. So I had to buy a new bottle for my medicine that I have to take. You would think she would have got it by me carrying these bottles around but nope. She actually said to me that I can give her gratuity now if I wanted. I gave her $1. She then replied in a sarcastic voice " Thankyou you are soooo generous. I don't like feeling obligated to tip somebody because I am disabled and have a bullet in my head."
Pros: "Good crew"
Pros: "Awesome stewardess Donna gave me the opportunity to find a clear row to myself for more room being a wider guy and was an all around class A attendant. Excellent hospitality, thank her much. And thank the crew for such a smooth flight!"
Cons: "Late, waited for a plane while numerous flights to Ontario and Sacramento came and went. Unacceptable."
Pros: "Flight was on time, crew was nice."
Cons: "always delay!!"
Cons: "Constant updates, saying more delays"
Pros: "The seat next to me was empty"
Cons: "I landed at Houston at 2am and there was no food options open or comfortable sleeping locations fo Try to rest"
Cons: "My luggage got soaked in overhead compartment. Signed rare book was ruined by another passengers' luggage that leaked liquid and soaked my bag and contents inside."
Cons: "Everything was good"
Pros: "Fast flight, friendly and funny crew."
Pros: "Best I can say is that I'm home safe and sound with my luggage"
Cons: "Long delay, many passengers were rebooked elsewhere. Boarding is awkward and too many segments slow it down. Staff were indifferent. Internet connection was abysmal. Couldn't get any entertainment."
Pros: "The crew was very friendly and caring"
Cons: "I was at the gate 15 minutes like it says on the ticket which never happens because I'm always about half an hour to 45 mins early but when I got there they had given myou seat away that was not cool"
Pros: "Great entertainment. Most of crew was very nice."
Cons: "Computer problem delay. Then someone closed the door improperly, so back to the gate. Then we needed more fuel. Then we had to wait for "paperwork". Took off 2 hours late all of which was spent sitting on the plane."
Cons: "have no idea if I'll even make it thru the day."
Pros: "Staff seemed lively and created good atmosphere; thank you."
Pros: "Friendly crew, boarding was pretty efficient"
Cons: "No complimentary snacks on the flight from Austin to Los Angelss. Entertainment was non existent unless you paid for wifi, even then you can't stream videos and no TVs at all"
Pros: "The crew was very pleasant and professional in spit of all the grumbly passengers."
Cons: "First boarding was aborted and passengers were sent back up jetway to waiting area. This was due to a mechanical issue with the plane, which I am glad they noticed and took care of. However, getting to the plane's door and then being told to go back to the waiting area was unpleasant."
Cons: "Flight was delayed by almost two hours so I missed the flight from Denver to Charlotte. Because of the way this flight was sold to us and booked through Kiwi.com, there was nothing that could be done to get me on another flight. The only option was to wait for a Frontier flight which wasn't available until Monday morning. I had to book another flight on a different airline at a cost of $600."
Cons: "Negative leg room, Hugh bag fees that were not stated in the original purchase"
Pros: "Nothing very disappointed with Frontiers service"
Cons: "From Ontario to Austin we were charge $50 for each carry on luggage we 1 for me 1 for my husband total $100 charge From Austin to Ontario carry on luggage was free why?Im filling complained about the airline"
Cons: "We arrived very late due to the airline being run so poorly. Something about paperwork according to the pilot. Now the rental car company is closed so I have to sleep at the airport and wait till the budget opens again in the morning. Frontier should put me up in a hotel as their mismanagement caused the delay not the weather. But they just said too bad because the flight was less than 4hours late. Frontier - never again!!!- plus the seats are painful"
Pros: "Non stop flight, friendly staff"
Cons: "Checked baggage fee $38 each way, checked carry on fee $30 each way, pay for your seat fee no matter where you sit. BS! These are hidden costs you see after you book the flight. You can cancel within 24 hours, but, that’s a headache after you’ve already planned. No worries Frontier. I will be avoiding you at all costs for future travel. Why not just include the costs up front?"
Cons: "Flight was delayed 6 hrs while other flights to Denver kept taking off"
Pros: "Quick boarding / deplaning"
Cons: "You have to PAY for a CARRY ON. That's just deceptive so I recommend doing the math when you book your next flight and go for other airlines even if their price is slightly higher than Frontier."
Cons: "The flight was delayed and we got a notification from google, but when we called Frontier, they said it was on time. And when we reached the airport they said, its been delayed. It caused a lot of inconvenience. Very unprofessional."
Pros: "The direct flight"
Cons: "New plane had Uncomfortable seats, ventilation of air flow was poor, no food/beverage service, where you place your head is hard, many announcements during the red eye flight, a lot of turbulence."
Cons: "Carry on bag cost of $45."
Cons: "Flight was cancelled!!!"
Cons: "Flight was canceled and they didn't have any more flight Ha for 6 days. So frustrating. Ended up paying $500 for a last minute flight on another airline."
Cons: "On a holiday arrived early to avoid traffic and the bag counter wants open. Had to stand there and wait for service, just to print out tickets. I have always scanned directly from my phone. Huge incovience. Flight attendants served to much alcohol to parents with a three month old. Allowed to much traffic through the cabin."
Pros: "Clean, friendly staff."
Cons: "Seats did not recline, so it was impossible to rest during this long, middle of the night flight. Misled about cost of carry-on."
Pros: "Flight was good and landing smooth."
Cons: "No beverages or snacks were offered. The flight was a late night flight and there was no where refreshments or beverages could be purchased, hence I was forced to fast for 6 hours."
Cons: "if you have to change flight, flight delay etc, frontier does not offer the flight capacity of other airlines, and thus is unreliable as a menas of getting to mostly all destinations they fly to. San Francisco to Chicago, they offer one flight every two days, anything goes wrong you are stuck without a flight"
Pros: "Literally. Nothing. Showing up at my destination alive, I guess."
Cons: "2 hour delay, then a three hour delay bc of weather. Another 45 minutes taxi-ing, then back at the gate because a passenger had to be escorted off because he didn't have a boarding pass. We were rushed to board he flight in the first place before the flight crew timed out; we finally took off at 2am with exhausted pilots which was terrifying. Also frontier charges for all bags and all seats, instead of including it in their base fee. Plane is tigjt and uncomfortable, no on board entertainment and seats don't recline. Most passengers were drunk and rowdy after long wait at the airport, and a man was busted for smoking weed in the bathroom. And someone else sat in my seat. THE WORST FLIGHT EXPERIENCE I HAVE EVER HAD--an all around disaster."
Cons: "The plane looked old (chipped paint, outdated upholstery). Seats did not recline. Had to pay for all baggage, carry-ons and drinks/food: this greatly increased the price of what we originally thought was a good deal on our flight."
Pros: "The flight arrived 40 minutes early."
Cons: "I paid $40 for a carry on. The plane was not pressurized, I've never had my ears hurt to bad on a plane."
Cons: "Seats comfort is not very good. Tray tables too small."
Cons: "I left a bag in the airport, and they did not issue a guest pass to help me retrieve it. While the police and other flight agencies they should issue it. The person at the counter was indifferent, and lazy."
Pros: "Leg room that I paid extra for"
Cons: "Staff very rude, continuously asked if the passengers next to me spoke English even though they obviously did, very uncomfortable chairs"
Pros: "This cheap flight will cost you twice as much if you plan on bringing any luggage. Frontier Web site is horrible. And don't try to fly with anyone cause unless you pay another $100 to sit together."
Cons: "Everything. Seats are bad. Customer service is bad. Cost is bad loads of hidden fees."
Pros: "Polite and efficient"
Cons: "Comfort of seats. Price of ticket and charge for carry on"
Pros: "Staff was great. Flight was comfortable. Loved having an all female crew."
Cons: "Flight was delayed due to mechanical issues. This is very frustrating."
Cons: "We sat on the tarmac for about 1.5 hours in Denver before we could leave the plane."
Cons: "Frontier's computers were down for updates at the same time we were trying to board. They could not get us on board, and we have not missed a funeral of one of our closest family members. This is simply unacceptable."
Cons: "Lost luggage, and casually 30-45 minutes late without even updating the flight status"
Cons: "The flight was cancelled. No big deal. It happens. But the the manager at the ticket desk took two hours to figure out a solution. His "solution" was to print out a phone number, hand it out to each of the passengers and then tell them to call because "there was nothing else he could do for us". And then he left to some back office and didn't come back out. The phone number he gave everyone was out of service. I called the regular customer service and asked them to help me rebook a new flight. They refused and said only the employees at the ticket counter could assist. The ticket counter people offered a refund over and over. But why would I want a 100 refund when I needed to book a 3-400 dollar flight to get to my destination. About eight hours, a couple of yelling matches, getting hung up on twice, and several actual tears later, I finally got a flight booked but the earliest flight they could find was 24 hours after my original scheduled arrival time. I'm writing this thirty minutes into my wait for a hotel shuttle. Long story short, I will take a greyhound or catch a cab or walk to my destination before I ever use frontier again"
Pros: "Friendly staff."
Cons: "Got delayed almost one hour. Seats didn't lean back. No snacks included."
Pros: "staff and crew were friendly and communicative."
Cons: "plane was delayed. boarding was weird, but i think maybe just because of construction at the airport."
Cons: "Charged for every additional thing so the cost of the ticket was not true."
Cons: "Flight was 3 hrs late...plane dirty"
Cons: "When did Frontier become a Spirit type of airline where everything is a cost? Even a carry-on bag? Will never fly them again. No reclining seats and what was with the tray? Can it even be called a tray?"
Cons: "Flight left 45 minutes late with no alerts, uncomfortable planes, tray "tables" couldn't hold more than a deck of cards and a small coffee, nickel and dime for everything, no wifi"
Pros: "Efficient boarding, arrived early"
Cons: "Had to pay extra for everything--seats, sodas, bags both carry-on & checked. Seat tray miniscule"
Pros: "I liked that everything was concise and to the point, that is good for short flights."
Cons: "I didn't like that the you have to pay for carry-on, for water. I don't think I would take this airline for a long flight because there is no leg room."
Pros: "???"
Cons: "The seats are like benches. I had to have a body massage as I arrived due to body ache There was no food Paid $40 bucks for my carry on"
Pros: "The crew was friendly and the plane was clean. Seats aren't too bad either."
Cons: "This is the only airline I know of that charges for a carry on bag as well as non-alcoholic beverages. Also, the charging for seats is ridiculous."
Cons: "Hidden seat and carry on fees. Come on now. What is the likely hood someone doesn't have a bag flying 2500 miles. You're going to charge for that in addition to the ticket? Plus, yes plus another charge to select a seat. Super dumb and honestly a bit childish. Put your entire price online and let people pick. Also note zero wifi. I know you're a lower tear airlines but it's 2016! Give the people the all in price and if you won't give them entertainment or wifi make worth their wild. Also note, the tray table was about the size of a tablet, I couldn't even use my computer to do local work during the flight. I appreciate the safe flight but from a high level: 1: make your online prices more transparent. 2: if you're going to be lower tear, make it clear that wifi and infighting entertainment isn't included. People will still choose to fly cheap, but to burry hidden charges is horrible."
Pros: "If Kayak wants to boost its website it should give overall projected costs for flights not just bare bones prices. Frontier is the biggest nickel and diming company since Ryan Air. What a disgusting and dubious way to run a business. Worst experience ever. I have had and continue to have status with at least two of the large carriers, so I have flown a lot. Too bad no one else could provide the direct flight to Cincinnati."
Cons: "If Kayak wants to boost its website it should give overall projected costs for flights not just bare bones prices. Frontier is the biggest nickel and diming company since Ryan Air. What a disgusting and dubious way to run a business. Worst experience ever. I have had and continue to have status with at least two of the large carriers, so I have flown a lot. Too bad no one else could provide the direct flight to Cincinnati."
Cons: "No human should have to endure a flight on this airline that is over two hours. Awful, just awful. Worst seats ever invented."
Cons: "I took off time from work today to catch a 5:25 flight from San Francisco to Denver, arriving at 9:05. It's now 11:55 pm and I am still sitting at gate 21 with a whole bunch of people other waiting for a plane to arrive. My only choices are to wait of this plane to show up, or come back in the morning to take the 5:45am flight. I have business meetings in Denver tomorrow morning. I had a car rented and a hotel reserved. The car rental in Denver closes is 5 minutes. The thing that's the most upsetting is that we keep receiving erroneous information. The original departure time was 5:25. Then we were told 6:00. Then we were told 9:00pm. Then we were told 12:03, Then we were told 12:20. Now we are being told they don't know when the plane will arrive to take us to Denver. I will NEVER fly Frontier again."
Cons: "Since frontier has went cheaper they have become one of the worst airlines. My first flight ran out of water for the bathroom and my second flight we delayed because they had to duct tape the bathroom door back on from the flight before mine."
Pros: "The staff was very helpful, I needed assistance and they were there to take care of my needs."
Cons: "How the airlines charges for everything except water."
Pros: "the flight was cancelled after being delayed for 4 hours. it was delayed because "many passengers booked the flight", and then it was cancelled because the window crack was found. fronter did not partner with other arilines, so the next one was available in 3 days. i had to cancel my whole flight and book last-minute flight with United and left in an hour. I had to pay $1000 extra for this flight. Frontier really ruined my day and my finanicals."
Pros: "Nothing"
Cons: "Service, seats, everything...not worth the cheaper price"
Pros: "Crew members were fun."
Cons: "The plane was super old. And none of the chairs reclined. And the big surprise was the $35 fee for carry ons lol. Like seriously?"
Pros: "Landings were very smooth."
Cons: "1. Charged $40 for carry-on (each way) 2. Charged $2 for tea. 3. Charged $20 to choose my seat (each way). 4. Flight was 90 minutes late (on a 2 hour flight), no explanation given. 5. Flight delayed another hour due to mechanical problems, no compensation offered, tea still $2."
Pros: "Had to cancel flight because of long delays. Actually went smoothly and got an appropriate refund. Wasn't expecting that to be easy but it was."
Cons: "Carry on bag fees made it more expensive at the end. First flight was delayed 6 hours ended up having to buy another flight last minute"

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Recent round-trip flight deals

12/15Thu
nonstopFrontier
1h 30mSFO-ONT
12/18Sun
nonstopFrontier
1h 31mONT-SFO
$40
12/15Thu
nonstopFrontier
1h 30mSFO-ONT
12/18Sun
nonstopFrontier
1h 31mONT-SFO
$48
2/16Thu
nonstopFrontier
1h 40mSFO-ONT
2/19Sun
nonstopFrontier
1h 30mONT-SFO
$54
12/15Thu
nonstopFrontier
1h 30mSFO-ONT
12/18Sun
nonstopFrontier
1h 31mONT-SFO
$58
2/16Thu
nonstopFrontier
1h 40mSFO-ONT
2/19Sun
nonstopFrontier
1h 30mONT-SFO
$59
12/11Sun
nonstopFrontier
1h 30mSFO-ONT
12/29Thu
nonstopFrontier
1h 31mONT-SFO
$68
12/15Thu
nonstopMultiple Airlines
1h 30mSFO-ONT
12/18Sun
nonstopMultiple Airlines
1h 32mONT-SFO
$70
2/23Thu
nonstopFrontier
1h 40mSFO-ONT
2/26Sun
nonstopFrontier
1h 30mONT-SFO
$71
12/14Wed
nonstopMultiple Airlines
1h 32mSFO-ONT
12/18Sun
nonstopMultiple Airlines
1h 31mONT-SFO
$73
3/5Sun
nonstopFrontier
1h 40mSFO-ONT
3/7Tue
1 stopFrontier
10h 52mONT-SFO
$75
2/23Thu
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2/26Sun
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12/25Sun
nonstopFrontier
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nonstopFrontier
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$78
12/25Sun
nonstopMultiple Airlines
1h 30mSFO-ONT
1/6Fri
nonstopMultiple Airlines
1h 28mONT-SFO
$80
12/11Sun
nonstopMultiple Airlines
1h 30mSFO-ONT
12/14Wed
nonstopMultiple Airlines
1h 25mONT-SFO
$83
12/15Thu
nonstopMultiple Airlines
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12/21Wed
nonstopMultiple Airlines
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$87
3/5Sun
nonstopMultiple Airlines
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3/7Tue
nonstopMultiple Airlines
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$88
12/29Thu
nonstopMultiple Airlines
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1/5Thu
nonstopMultiple Airlines
1h 35mONT-SFO
$90
12/20Tue
nonstopMultiple Airlines
1h 25mSFO-ONT
12/22Thu
nonstopMultiple Airlines
1h 31mONT-SFO
$93
12/20Tue
nonstopUnited Airlines
1h 25mSFO-ONT
12/24Sat
nonstopUnited Airlines
1h 32mONT-SFO
$98
1/9Mon
nonstopUnited Airlines
1h 24mSFO-ONT
1/14Sat
nonstopUnited Airlines
1h 35mONT-SFO
$109

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12/15Thu
nonstopFrontier
1h 30mSFO-ONT
$21
12/8Thu
nonstopFrontier
1h 30mSFO-ONT
$23
12/8Thu
nonstopFrontier
1h 30mSFO-ONT
$26
2/19Sun
nonstopFrontier
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$28
12/25Sun
nonstopFrontier
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$30
12/25Sun
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12/11Sun
nonstopFrontier
1h 30mSFO-ONT
$34
12/15Thu
nonstopFrontier
1h 30mSFO-ONT
$35
12/29Thu
nonstopFrontier
1h 30mSFO-ONT
$41
1/3Tue
1 stopFrontier
8h 15mSFO-ONT
$43
12/29Thu
nonstopFrontier
1h 30mSFO-ONT
$44
12/22Thu
nonstopFrontier
1h 30mSFO-ONT
$48
12/28Wed
nonstopUnited Airlines
1h 29mSFO-ONT
$49
1/31Tue
nonstopUnited Airlines
1h 25mSFO-ONT
$60
1/11Wed
1 stopMultiple Airlines
17h 30mSFO-ONT
$69
12/20Tue
nonstopUnited Airlines
1h 21mSFO-ONT
$70
1/4Wed
nonstopUnited Airlines
1h 24mSFO-ONT
$80
1/14Sat
1 stopMultiple Airlines
17h 50mSFO-ONT
$81
1/15Sun
nonstopUnited Airlines
1h 17mSFO-ONT
$82
2/7Tue
nonstopUnited Airlines
1h 29mSFO-ONT
$89

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San Francisco - Ontario Flights

Departure:

San Francisco (SFO)United States

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - San Francisco

Cabin classes:

$615
$751
$421
$60

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