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Find deals on flights from Ontario from $53

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 6/3. 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 6/24
Mon 7/1

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Where can I fly from Ontario?

Prices from ONT, departing Mon 6/24 and returning Mon 7/1

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 (17% of total searches). The next most popular destinations are Seattle/Tacoma Intl (7%) and Chicago (6%).

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 London, San José del Cabo and Bangkok.

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 (89% of total searches). The next most popular destinations are Taiwan (6%) 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, Honolulu, El Paso and Salt Lake City. On average, the cheapest of these destinations on KAYAK over the last 2 weeks for a return flight was El Paso at $72, while the most expensive was Honolulu, at $219.

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 Guadalajara and San Salvador. On average, the cheapest of these destinations on KAYAK over the last 2 weeks for a return flight was San Salvador at $199, while the most expensive was Guadalajara, at $218.

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 00m, followed by a flight to New York at 5h 20m.

Good to know

Low season

February

High season

May

Cheapest flight

$53
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 5% increase in price.
Flight from Ontario to Seattle

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 $85 one-way - $146 round-trip; Dallas $147 one-way - $318 round-trip; Las Vegas $28 one-way - $56 round-trip
  • Morning departure is around 15% 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 899 reviews
8.3Boarding
7.8Food
8.0Entertainment
8.0Comfort
8.6Crew
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.

Free Wi-Fi could have been better in the Airport.

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

Baggage made it successfully to destination despite short layover. Appreciate that.

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

On time take off…US cabins look tired and need of refresh!

Backpack should NOT allowed put in the flight bin , only put it under the seat. I can't find space put my carry on luggage!!! and I pay for it ! that was very bad experience

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

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

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

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

Flight was 1/2 hour delayed leaving Phoenix. Otherwise it was an average flight. Flight crew on this trip was very nice.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

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.

The Frontier app wasn’t working. So I could not pay for a carry on the week prior to flying. They charged me 99$ at the gate to carry on a duffle bag.

Good for the price. My only complaint is that the pilot should keep the air flowing while passengers are waiting to getting out of airplane.

Plane could have been more on time. More leg room .

I arrived 1 hour prior to boarding, and they said I was too late for a domestic flight. First time I heard that :-(

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

Book cheap domestic flights from Ontario

Recent round-trip flight deals

6/24Mon
nonstopFrontier
1h 12mONT-LAS
6/26Wed
nonstopFrontier
1h 10mLAS-ONT
$48
6/4Tue
nonstopFrontier
1h 11mONT-LAS
6/5Wed
nonstopFrontier
1h 10mLAS-ONT
$53
6/26Wed
nonstopDelta
2h 46mONT-SEA
6/26Wed
nonstopDelta
2h 43mSEA-ONT
$157
6/26Wed
nonstopDelta
2h 46mONT-SEA
7/2Tue
1 stopDelta
6h 48mSEA-ONT
$167
8/17Sat
1 stopAmerican Airlines
5h 25mONT-LAS
8/21Wed
1 stopAmerican Airlines
5h 33mLAS-ONT
$196
6/15Sat
nonstopUnited Airlines
1h 25mONT-SFO
6/15Sat
nonstopUnited Airlines
1h 32mSFO-ONT
$197
9/1Sun
1 stopAlaska Airlines
4h 37mONT-SEA
9/5Thu
nonstopAlaska Airlines
2h 35mSEA-ONT
$206
6/27Thu
nonstopAlaska Airlines
2h 35mONT-SEA
7/1Mon
nonstopAlaska Airlines
2h 33mSEA-ONT
$207
6/7Fri
1 stopAmerican Airlines
7h 58mONT-ORD
6/10Mon
1 stopAmerican Airlines
5h 42mORD-ONT
$236
8/23Fri
1 stopUnited Airlines
8h 16mONT-EWR
8/27Tue
1 stopUnited Airlines
8h 31mEWR-ONT
$246

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Recent one-way flight deals

6/3Mon
nonstopFrontier
1h 28mONT-SFO
$36
6/6Thu
nonstopFrontier
1h 10mONT-LAS
$37
6/25Tue
1 stopDelta
5h 27mONT-SEA
$88
7/17Wed
1 stopAmerican Airlines
5h 20mONT-LAS
$98
9/30Mon
1 stopAmerican Airlines
6h 14mONT-LAS
$99
6/15Sat
nonstopUnited Airlines
1h 25mONT-SFO
$99
8/23Fri
nonstopAlaska Airlines
2h 38mONT-SEA
$99
7/2Tue
1 stopDelta
6h 20mONT-DFW
$108
8/10Sat
1 stopUnited Airlines
6h 17mONT-SEA
$123
7/16Tue
1 stopAlaska Airlines
11h 33mONT-EWR
$139

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Last minute flights from Ontario to Anywhere

Last minute flight, train and bus deals

5/28Tue
nonstopFrontier
1h 12mONT-LAS
6/20Thu
nonstopFrontier
1h 03mLAS-ONT
$72
5/30Thu
nonstopFrontier
1h 10mONT-LAS
5/31Fri
nonstopFrontier
1h 04mLAS-ONT
$74
5/30Thu
multi-stopAmerican Airlines
7h 32mONT-ORD
6/2Sun
multi-stopAmerican Airlines
7h 32mORD-ONT
$279
5/29Wed
multi-stopDelta
10h 08mONT-JFK
6/8Sat
multi-stopDelta
9h 02mJFK-ONT
$286
5/26Sun
multi-stopDelta
9h 08mONT-LGA
5/30Thu
multi-stopDelta
10h 47mLGA-ONT
$291
5/29Wed
multi-stopUnited Airlines
10h 53mONT-HNL
6/18Tue
multi-stopUnited Airlines
10h 27mHNL-ONT
$299
5/28Tue
multi-stopAmerican Airlines
8h 30mONT-JFK
6/5Wed
multi-stopAmerican Airlines
11h 09mJFK-ONT
$319
5/29Wed
nonstopUnited Airlines
1h 25mONT-SFO
6/3Mon
nonstopUnited Airlines
1h 32mSFO-ONT
$324
5/28Tue
multi-stopAlaska Airlines
25h 49mONT-HNL
5/29Wed
multi-stopAlaska Airlines
21h 48mHNL-ONT
$366
5/30Thu
multi-stopAlaska Airlines
5h 51mONT-SEA
6/6Thu
multi-stopAlaska Airlines
5h 30mSEA-ONT
$421

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Book cheap international flights from Ontario

Recent round-trip flight deals

8/15Thu
multi-stopAmerican Airlines
20h 25mONT-CUN
8/22Thu
multi-stopAmerican Airlines
17h 54mCUN-ONT
$332
8/15Thu
multi-stopAmerican Airlines
20h 25mONT-CUN
8/22Thu
multi-stopAmerican Airlines
12h 32mCUN-ONT
$336
6/7Fri
multi-stopFrontier
18h 19mONT-CUN
6/11Tue
multi-stopFrontier
29h 30mCUN-ONT
$377
6/4Tue
multi-stopFrontier
7h 07mONT-CUN
6/11Tue
multi-stopFrontier
29h 30mCUN-ONT
$386
7/15Mon
multi-stopUnited Airlines
18h 15mONT-CUN
7/20Sat
multi-stopUnited Airlines
17h 32mCUN-ONT
$472
7/14Sun
multi-stopUnited Airlines
16h 35mONT-CUN
7/19Fri
multi-stopUnited Airlines
17h 46mCUN-ONT
$482
9/3Tue
multi-stopChina Airlines
33h 20mONT-MNL
9/26Thu
multi-stopChina Airlines
22h 30mMNL-ONT
$753
10/22Tue
multi-stopChina Airlines
33h 55mONT-MNL
10/29Tue
multi-stopChina Airlines
28h 35mMNL-ONT
$758
9/12Thu
multi-stopDelta
27h 05mONT-DEL
2/15Sat
multi-stopDelta
37h 32mDEL-ONT
$1,327
9/12Thu
multi-stopDelta
27h 05mONT-DEL
2/27Thu
multi-stopDelta
37h 32mDEL-ONT
$1,377

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Recent one-way flight deals

6/3Mon
multi-stopFrontier
17h 23mONT-CUN
$154
8/27Tue
multi-stopAmerican Airlines
6h 57mONT-CUN
$160
8/24Sat
multi-stopAmerican Airlines
8h 06mONT-CUN
$161
8/5Mon
multi-stopFrontier
29h 27mONT-CUN
$162
7/23Tue
multi-stopUnited Airlines
14h 07mONT-CUN
$230
8/26Mon
multi-stopAlaska Airlines
31h 35mONT-CUN
$268
7/13Sat
multi-stopUnited Airlines
9h 35mONT-CUN
$270
8/19Mon
multi-stopAlaska Airlines
31h 35mONT-CUN
$321
8/21Wed
multi-stopChina Airlines
24h 00mONT-MNL
$452
8/12Mon
multi-stopChina Airlines
17h 50mONT-MNL
$471

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Flights from Ontario to Anywhere

Departure:

Ontario (ONT)United States

Return flight deals:

Anywhere - Ontario

Cabin classes:

$357
$153
$296
$37