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Find deals on flights from Ontario from $54

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 Anywhere departing on 5/13. 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
Mon 5/27
Mon 6/3

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Where can I fly from Ontario?

Prices from ONT, departing Mon 5/27 and returning Mon 6/3

Flights from Ontario - Travel Insights & Trends

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

Which are the most popular places to fly to from Ontario?

The domestic destinations KAYAK users have most searched for when searching for flights from Ontario.
Based on KAYAK flight searches, the most popular place to fly from Ontario is New York (16% of total searches). The next most popular destinations are Dallas (10%) and Seattle/Tacoma Intl (8%).

What are the most popular international flights out of Ontario?

The international destinations KAYAK users have most searched for when searching for flights from Ontario.
There are many international destinations you can fly to from Ontario. The most popular international destinations among KAYAK users are Mexico City, Paris and Manila.

What are the most popular countries to fly to from Ontario?

The most popular countries KAYAK users have searched for from Ontario along with the average price for the route clicked by KAYAK users in the last 2 weeks.
Based on KAYAK flight searches, the most countries to fly to from Ontario is United States (86% of total searches). The next most popular destinations are Taiwan (9%) and El Salvador (3%).

Which cities can I fly to direct from Ontario?

There are loads of places you can fly direct to from Ontario. The most popular destinations for direct flights among KAYAK users are Phoenix, Portland, El Paso, Salt Lake City and Denver. On average, the cheapest of these destinations on KAYAK over the last 2 weeks for a return flight was El Paso at $60, while the most expensive was New York, at $253.

Which international cities can I fly to direct from Ontario?

There are many international destinations you can fly to non-stop from Ontario. The most popular international destinations from KAYAK users are Taipei City, Guadalajara and San Salvador. On average, the cheapest of these destinations on KAYAK over the last 2 weeks for a return flight was Guadalajara at $209, while the most expensive was Taipei City, at $1,194.

What is the longest direct flight from Ontario?

The longest direct flight you can take from Ontario is to Taipei City Taiwan Taoyuan Intl Airport, with a duration of 14h 05m. The next longest is Honolulu at 6h 15m, followed by a flight to New York at 5h 20m.

Good to know

Low season

January

High season

September

Cheapest flight

$54
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 11% lower on average.
Flight from Ontario to Dallas/Fort Worth Airport

FAQs for booking flights out of Ontario

  • Do flights from Ontario via Ontario International Airport (ONT) consider persons with reduced mobility?

    Special needs passengers, such as those with restricted mobility or impaired vision, will find it easier to fly from Ontario via ONT. To assist these passengers, all airlines have workers stationed throughout the airport. Anyone who requires special airport services should make their request while making their travel arrangements.

  • Can I park my car at Ontario International Airport?

    Different types of parking indicate the probability of parking your car at the airport. If you've arrived at the airport and have a to-and-fro flight from Ontario, consider parking your car at private, public, or valet parking lots with a surcharge both for short and long parking.

  • Are there nursing rooms at Ontario International Airport?

    Lactating mothers are much considered on flights from Ontario via ONT, for it features two nursing rooms for them. One of these nursing rooms is situated in Terminal 2 on the second floor past the TSA screening across from gate 204, next to the women's restroom. The other one is at Terminal 4 on the second floor across from gate 407, next to the family restroom.

  • Which airlines have lounges at Ontario International Airport in Ontario?

    Consider using the Aspire Lounge in Terminal 2, open to guests traveling with United, Alaska, Frontier, and Delta airlines. The lounge provides unparalleled airfield views, excellent food, and comfortable seating to work or relax.

  • What is Ontario also known as?

    Ontario Airport’s airport code is ONT. It can also be referred to as Ontario, Ontario Intl.

  • How does KAYAK find such low prices on flights from 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 Ontario.

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

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

    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 your destination 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?

    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 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 out of Ontario

  • Looking for a cheap flight? 25% of our users found tickets from Ontario to the following destinations at these prices or less: Denver $95 one-way - $138 round-trip; Dallas $132 one-way - $266 round-trip; Las Vegas $37 one-way - $68 round-trip
  • Morning departure is around 9% cheaper than an evening flight, on average*.
  • Flights from Ontario depart from Ontario International Airport (ONT). Most passengers use Ontario International Airport from Ontario to Mexico and Las Vegas.
  • It would take you approximately 5 minutes to cover the 3 miles connecting the Ontario city center to Ontario International Airport. If you are in a hurry, consider using a private means of transport such as a taxi, Uber, or car rental. A bus or a train is an alternative means of transport if you are not in a hurry to catch your flight.
  • Travelers with the earliest flight from the airport should consider staying in one of the hotels close to it. For instance, you can book a room at Holiday Inn Ontario Airport. This hotel is a 3-minute walk to ONT and provides a complimentary airport shuttle to its guests who are connecting to the airport for a flight and have pieces of luggage.
  • Never leave your pet behind if you have a flight from Ontario through Ontario International Airport. The airport considers animals by building several pet relief areas inside and outside. These areas are close to gates 210 in Terminal 2 and 410 in Terminal 4. The outside pet relief area is located at the end of the terminal building.
  • Everyone understands how stressful it is to travel with children on long vacations. JetBlue Airlines is a good option if you are flying with children from Ontario. This airline provides kid-friendly amenities such as video games, subscribed cartoon channels, plane toys, and free refreshments to keep kids entertained during the flight. This airline's planes boast big, pleasant seats with ample legroom, making it ideal for parents with children on their laps.
See more tips
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Ontario to Anywhere

 
Need help choosing which airline to fly with from Ontario to Anywhere? 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.
8.2
China AirlinesOverall score based on 961 reviews
8.3boarding
8.6crew
8.0comfort
8.1entertainment
7.8food
Airline reviews

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

10.0 Excellentfr Jonah, Apr 2024HKG - TPE
Read more about China Airlines reviews

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

Comfort was left wanting due to such a long flight, made the wife and I wish we could upgrade the seats to Business class or First Class, but did not have that option. Food was good but had very limited options and I have a dietary restriction which was difficult for the staff to accommodate since everything provided came with cheese on it. (Cheese could potentially kill me) Did not have an option to inform the staff until we were already in the air about the restriction and was not provided another option before flight departed.

It was a 2 hour flight to Taiwan. Lunch was served. China Airlines goes above and beyond for their passengers.

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.

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

Flight was delay almost 2 hours from Hong Kong to Taipei. Last minute gate change from 24 to 66. Long way walk. We need to run in the Taipei airport to catch our next flight from Taipei to Vancouver. That is so suck!

For a long-haul flight, the crew did a very good job of keeping the lavatories clean and the aisles clear.

There was a loud squeaky sound the whole time we were flying.

I didn’t not like that I could not select my seat and ended up with the worse seat.

The landing was bad and the hostess came two times and i was sleeping but when she served the person that nexts to me I woke up and she didn’t even asked me if I need any drink or snacks two times!!!!

Plane was late because of a mechanical malfunction and the food listed as available was not. Flight attendants seem over worked and under paid. They just done seem happy. And that can be seen in their faces.

Waited 3 hours on a plane to de-ice due to manpower issues. Waited another hour and a half once we landed because of a gate issue. Missed my connections. Created. A total of 13 hours of delay.

Great, on time departure, friendly and accommodating crew, great leg room, Smith flight

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

Honestly, I didn’t expect that I will experience this long time wait during the check in. There was only one person who was taking care of the passengers for the economy class and it took us to wait about one hour to do our check i. As a result we barely get to the airplane as the gate was at the end of the airport. That is totally not professional where one crue is working at the registration desk with economy and 3-4 crues are helping for the business class.

Like most domestic flights in the US, you are basically on your own with this airline when it comes to food, so be sure to purchase meals and drinks ahead of time or expect to arrive starving and dehydrated (like I was).

You need to be a hacker to get the (Free) WiFi

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

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.

the head jack on my seat didn't work and the power outlet didn't work for my seat

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

Left 2 hours later for delayed I had to take care a kid with special need since people don’t want to move to accommodate the rest of the family. . It wasn’t bad but that made me upset that people can be that selfish.

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.

Not sure why JAL partnered with American Airlines because their service is no where near similar. Flight attendants were not friendly and didn’t smile. Food was horrible…

The experience was great and much better than the flight going out. of course I was in first class but the service was excellent

Comfort of seats, ease of boarding. Food selection could be better

Food options were limited which is absolutely embarrassing for a Flight of this size The staff did not come around as much and I am not accustomed to such poor service from American Airlines Drinks I believe were limited to soda and water

Crew were attentive and friendly. Flight was smooth and early! I enjoyed the less crowded plane. Thank you!

We are gluten free, there were not any available complimentary gluten free options.

No meal on a cross country flight? SFO-MiA is pretty much the definition of a coast to coast flight. No meal provided. Sky high wi-fi rates too. Stop nickel and diming your customers.

The staff was unprofessional and didn’t communicate very well. The boarding process was very disheveled, potentially due to a power outage the previous day but there was no contingency plan to properly get passengers boarded the following day. Once boarded the aircraft stayed on the tarmac for over 45 minutes due to high winds. The communication was sporadic but an announcement was finally made an additional 30 minutes later that the flight was cancelled but we couldn’t get off the plane. Prior to deplaning one of the gate agents came on the plane and made an announcement for everyone to pickup their checked bags and take a card to rebook a new reservation because they didn’t have adequate staff. Flights were missed, passengers went to different airports and there was little to no assistance from AA.

You cancelled my flight by email then made it very difficult to get in contact with you. Then put me in a flight with a long layover in Mexico returning to the wrong airport in uk. Mind blowing my stressful. I missed see my grand dad because of you.

Apart from the delay due to unforeseen circumstances. The leg from sjc to dfw was fine. It was the leg from dfw to orf that we encountered issues mainly due to the flight attendant crew not being friendly. We had two small children and we needed some assistance to warm up milk so the baby would sleep. The crew just didn’t get it and made things very difficult. One made a remark that the baby’s dirty diaper smell was a “gift” to the plane in a rude way. Normally I’d brush that off as a funny comment if the rest of the trip the attendants were helpful or understanding of the difficulty we faced. But that wasn’t the case. We were met with rudeness on the second leg. Whereas on the first leg the crew were so nice and helpful.

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Flight was OK. Seats were good no cell phone charges on the plane no TVs or entertainment.

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.

Flight cancelled and was told by a rude gate agent that they don’t accommodate on other airlines. Had to wait 5 hours for a connecting flight that had a 7 hour layover. Would not allow bags to be checked early so we couldn’t go through security .Had to rent a car for the afternoon to store bags and get a meal. Also incurred a hotel fee. No apology or reason given for the cancellation- just rudeness.

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

Not have to pay for every single item to take a flight. Seating and delays sucked.

Flight was cancelled and I had to spend the night in the airport lugging my suitcase around

If you don’t check in 24 hours in advance, they will charge you $110 to check your bag instead of the $30. I did not get an email with this information and did not check in. In addition, my flight home was cancelled at layover and I had to spend the night in the airport, and then have another layover at another airport before making it home. Will not fly frontier again.

Book cheap domestic flights from Ontario

Recent round-trip flight deals

5/4Sat
nonstopFrontier
1h 26mONT-PHX
5/7Tue
nonstopFrontier
1h 16mPHX-ONT
$48
5/4Sat
nonstopFrontier
1h 28mONT-SFO
5/7Tue
nonstopFrontier
1h 29mSFO-ONT
$48
5/25Sat
nonstopAlaska Airlines
2h 41mONT-SEA
6/1Sat
nonstopAlaska Airlines
2h 32mSEA-ONT
$177
5/18Sat
nonstopDelta
3h 02mONT-SEA
5/20Mon
nonstopDelta
2h 39mSEA-ONT
$197
6/4Tue
1 stopDelta
5h 01mONT-SEA
6/5Wed
1 stopDelta
6h 34mSEA-ONT
$216
5/18Sat
1 stopAmerican Airlines
4h 20mONT-DEN
5/20Mon
1 stopAmerican Airlines
4h 36mDEN-ONT
$224
9/10Tue
1 stopAmerican Airlines
10h 30mONT-JFK
9/17Tue
1 stopAmerican Airlines
7h 38mJFK-ONT
$236
7/16Tue
1 stopAlaska Airlines
5h 32mONT-SEA
7/27Sat
nonstopAlaska Airlines
2h 35mSEA-ONT
$236
5/16Thu
1 stopUnited Airlines
9h 00mONT-HNL
5/20Mon
1 stopUnited Airlines
8h 31mHNL-ONT
$358
6/27Thu
1 stopUnited Airlines
9h 58mONT-HNL
7/2Tue
1 stopUnited Airlines
9h 45mHNL-ONT
$410

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Recent one-way flight deals

5/13Mon
nonstopFrontier
1h 22mONT-PHX
$44
7/2Tue
nonstopFrontier
1h 26mONT-SFO
$44
5/21Tue
nonstopDelta
3h 00mONT-SEA
$89
5/11Sat
nonstopAmerican Airlines
3h 01mONT-DFW
$90
6/5Wed
1 stopDelta
4h 56mONT-DEN
$98
6/5Wed
1 stopAlaska Airlines
8h 07mONT-DEN
$100
8/20Tue
1 stopAmerican Airlines
10h 01mONT-LGA
$108
5/21Tue
1 stopAlaska Airlines
7h 31mONT-ORD
$110
6/26Wed
nonstopUnited Airlines
2h 17mONT-DEN
$120
6/9Sun
nonstopUnited Airlines
2h 17mONT-DEN
$140

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Last minute flights from Ontario to Anywhere

Last minute flight, train and bus deals

5/1Wed
nonstopFrontier
1h 27mONT-SFO
5/7Tue
nonstopFrontier
1h 29mSFO-ONT
$89
5/2Thu
nonstopFrontier
1h 27mONT-SFO
5/9Thu
nonstopFrontier
1h 29mSFO-ONT
$99
4/30Tue
multi-stopDelta
9h 24mONT-DFW
5/11Sat
multi-stopDelta
8h 33mDFW-ONT
$260
4/29Mon
multi-stopDelta
7h 45mONT-LGA
5/2Thu
multi-stopDelta
9h 02mLGA-ONT
$276
4/29Mon
multi-stopAmerican Airlines
9h 59mONT-JFK
5/2Thu
multi-stopAmerican Airlines
8h 52mJFK-ONT
$312
5/2Thu
multi-stopAmerican Airlines
11h 19mONT-HNL
5/7Tue
multi-stopAmerican Airlines
10h 31mHNL-ONT
$340
5/2Thu
multi-stopAlaska Airlines
16h 07mONT-HNL
5/7Tue
multi-stopAlaska Airlines
15h 45mHNL-ONT
$360
4/30Tue
multi-stopAlaska Airlines
18h 17mONT-HNL
5/3Fri
multi-stopAlaska Airlines
30h 45mHNL-ONT
$363
5/1Wed
multi-stopUnited Airlines
6h 54mONT-LGA
5/7Tue
multi-stopUnited Airlines
8h 41mLGA-ONT
$376
4/30Tue
multi-stopUnited Airlines
13h 29mONT-LGA
5/14Tue
multi-stopUnited Airlines
10h 38mLGA-ONT
$386

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Book cheap international flights from Ontario

Recent round-trip flight deals

5/6Mon
multi-stopFrontier
11h 07mONT-CUN
5/10Fri
multi-stopFrontier
18h 50mCUN-ONT
$214
5/6Mon
multi-stopFrontier
10h 21mONT-CUN
5/9Thu
multi-stopFrontier
9h 24mCUN-ONT
$216
5/6Mon
multi-stopFrontier
11h 07mONT-CUN
5/9Thu
multi-stopFrontier
9h 24mCUN-ONT
$225
7/30Tue
multi-stopAmerican Airlines
6h 55mONT-CUN
8/16Fri
multi-stopAmerican Airlines
7h 20mCUN-ONT
$432
9/14Sat
multi-stopAmerican Airlines
9h 16mONT-CUN
9/21Sat
multi-stopAmerican Airlines
11h 09mCUN-ONT
$434
8/27Tue
multi-stopChina Airlines
33h 20mONT-MNL
9/18Wed
multi-stopChina Airlines
16h 20mMNL-ONT
$801
9/8Sun
multi-stopChina Airlines
24h 00mONT-MNL
9/25Wed
multi-stopChina Airlines
16h 20mMNL-ONT
$805
9/3Tue
multi-stopUnited Airlines
31h 15mONT-MNL
9/11Wed
multi-stopUnited Airlines
16h 27mMNL-ONT
$989
8/29Thu
multi-stopUnited Airlines
31h 15mONT-MNL
10/17Thu
multi-stopUnited Airlines
16h 18mMNL-ONT
$1,029
10/17Thu
multi-stopDelta
36h 26mONT-DEL
10/20Sun
multi-stopDelta
45h 03mDEL-ONT
$1,366

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Recent one-way flight deals

5/20Mon
multi-stopFrontier
10h 00mONT-CUN
$120
5/8Wed
multi-stopFrontier
28h 40mONT-CUN
$132
5/20Mon
multi-stopDelta
13h 00mONT-CUN
$185
5/29Wed
multi-stopUnited Airlines
11h 20mONT-CUN
$224
5/26Sun
multi-stopUnited Airlines
14h 07mONT-CUN
$230
5/26Sun
multi-stopAmerican Airlines
11h 52mONT-CUN
$249
5/12Sun
multi-stopDelta
11h 51mONT-CUN
$250
5/5Sun
multi-stopAmerican Airlines
10h 18mONT-CUN
$276
5/2Thu
multi-stopChina Airlines
18h 25mONT-MNL
$568
7/21Sun
multi-stopChina Airlines
17h 50mONT-MNL
$587

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Flights from Ontario to Anywhere

Departure:

Ontario (ONT)United States

Return flight deals:

Anywhere - Ontario

Cabin classes:

$362
$153
$296
$39