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Find cheap flights from Ontario to North America from $38

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 North America departing on 6/9. 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
Sun 6/30
Sun 7/7

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Best North America Flight Deals

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

New York
New York1 stop$184
Las Vegas
Las Vegasnonstop$53
Miami
Miami1 stop$178
San Francisco
San Franciscononstop$55
Chicago
Chicago1 stop$136
Boston
Boston1 stop$248
Washington, D.C.
Baltimore1 stop$176
Denver
Denvernonstop$55
Seattle
Seattlenonstop$97
Fort Lauderdale
Fort Lauderdale1 stop$260
Atlanta
Atlanta1 stop$176
Dallas
Dallasnonstop$93
Cancún
Cancún1 stop$361
Tampa
Tampa1 stop$179
Houston
Houstonnonstop$118
Honolulu
Honolulunonstop$239

Good to know

Low season

January

High season

May

Cheapest flight

$38
Best time to beat the crowds with an average 0% drop in price.
Most popular time to fly with an average 1% increase in price.
Flight from Ontario to San Francisco

FAQs - booking North America flights

  • How does KAYAK find such low prices on flights from Ontario to North America?

    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 North America.

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

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

    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 North America with an airline and back to Ontario with another airline.

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

    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 North America from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to North America

  • Looking for a cheap flight? 25% of our users found tickets from Ontario to the following destinations at these prices or less: Denver $90 one-way - $159 round-trip; Dallas $154 one-way - $325 round-trip; Las Vegas $26 one-way - $52 round-trip
  • Morning departure is around 12% 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

Top 5 airlines serving from Ontario to North America

 
Need help choosing which airline to fly with from Ontario to North America? 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.
8.0
Alaska AirlinesOverall score based on 9197 reviews
8.2Boarding
7.9Comfort
7.3Food
7.3Entertainment
8.6Crew
Airline reviews

I didn’t know that food needed to be ordered ahead. Please include this in the reservation information. Overall, very good experience.

8.0 ExcellentNorma, May 2024SNA - SEA
Read more about Alaska Airlines reviews

I didn’t know that food needed to be ordered ahead. Please include this in the reservation information. Overall, very good experience.

Plane hit turbulence diverted to Houston. We'll probably get in after 3am

Given incorrect gate upon check-in, corrected by the gate attendant, D6 rather than D5, minor inconvenience. As with the previous flight, passengers were admonished to voluntarily gate-check carry-on luggage with the statement that those in the last boarding group would have no choice but to do so. If the Boeing 737 MAX8/MAX9 doesn't have room for carry-ons it's an interior design flaw on the part of Boeing. Posting an advance warning would be helpful, such as "Boeing 737 MAX planes feature limited carry-on space. Please be aware." SFO's amenities and TSA much better than MCO's. Crew was amazing! Brought my own food because Alaska's onboard selection has soy in everything. Beverage service was excellent. This was the first and last trip with Alaska after the previous flight's issues. It's no reflection on the crew of this flight. They were great.

I had a middle seat in between two large men. It was a redeye so needless to say I didn’t get a minute of sleep. One guy was pouring over into my seat the other kept falling onto my shoulder

Great price on internet. I love that WiFi was so affordable. Got a lot done.

Ground staff at LAX was very helpful. The Alaska lounge food and service is better than most airport lounges. I think the Staff are well trained polite and actually seem happy to work there. Great service Thanks 🙏 Jjk

The flight was very very delayed and arrived much later than planned. There was no communication about why or when our arrival would be. I would expect better and open communication about the flight but there was none. Also just pretzels? How disappointing.

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

It was ok. Alaska was adequate. Efficient and what I paid for it was fair. The boarding area at the gate was a joke. By the time they get past the C boarding group people all line up impatiently and then it’s chaos. We were boarding early then we sat on the tarmac for 30 minutes. I would of rather sat in the airport.

The flight was mostly smooth and quiet. No seatback screens.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

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).

Aisle chair was good and liked the foot bar preventing you from putting your foot in the isle, The breakfast on this international flight to Zurich was horrible (Europeans, specially, used to good food) may make this a dealbreaker for booking with United Airlines again. I agreed with my Spanish fellow passenger.

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.

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.

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

Didn't like anything..entire crew was very rude to everyone on the flight. Plane old and the trays fall down on you the while time you're flying. Charged more for a carry on bag than for the plane ticket itself. Did make it from point a to point b, but worth the extra money to fly with another airline

9 hours of delay!! Was not able to check my luggage that I paid for!!!

It was delayed 9 hours for operational reasons, despite the plane arriving to the airport on time.

I am very disappointed with Frontier Airlines. They cancelled our flight because they couldn't find a crew member, and then didn't get us to our connecting flight. We had to cancel our whole vacation. We were promised flight and hotel vouchers, but they never sent them.

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

It was ridiculously hard to check in for the flight, and Frontier charged us a LOT of money to have a carry on suitcase, and then told everyone we could not carry on bags and had to check them through at the gate, and didn't refund the extra money we paid to have the suitcase as carry on.

I had a terrible experience with Frontier. I arrived before the 60 minute cut off and was told that Frontier has a two hour window for bags. I was then told the next available flight wasn’t until the end of the day (I had booked a 6am flight). I took a look around and saw other people being told that they could not board their flights or that they had to pay additional fees. I opted to rebook on American Airlines. There’s absolutely no straightforward way to contact Frontier, so this ticket was a complete waste of money. Oh - and the kicker is that the lady lied about the two hour cut off.

Frontier won’t help you at the airport without paying $25. Carry on was $75. Then you get on the plain and every beverage or snack is also a charge. Seats are hard and real packed in. I would never fly them again.

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.

Book cheap flights from Ontario to North America

Recent round-trip flight deals

6/18Tue
nonstopFrontier
1h 27mONT-SFO
6/19Wed
nonstopFrontier
1h 23mSFO-ONT
$55
6/10Mon
nonstopFrontier
2h 20mONT-DEN
6/12Wed
nonstopFrontier
2h 22mDEN-ONT
$55
7/30Tue
nonstopDelta
2h 44mONT-SEA
8/6Tue
1 stopDelta
6h 45mSEA-ONT
$167
7/8Mon
nonstopDelta
2h 44mONT-SEA
7/16Tue
nonstopDelta
3h 01mSEA-ONT
$177
8/15Thu
1 stopAlaska Airlines
6h 23mONT-SEA
8/18Sun
nonstopAlaska Airlines
2h 35mSEA-ONT
$206
8/29Thu
1 stopAlaska Airlines
4h 37mONT-SEA
9/3Tue
1 stopAlaska Airlines
5h 45mSEA-ONT
$216
8/6Tue
1 stopAmerican Airlines
8h 34mONT-LGA
8/13Tue
1 stopAmerican Airlines
10h 37mLGA-ONT
$226
8/14Wed
1 stopAmerican Airlines
10h 30mONT-JFK
8/24Sat
1 stopAmerican Airlines
8h 33mJFK-ONT
$255
9/4Wed
1 stopUnited Airlines
9h 23mONT-EWR
9/14Sat
1 stopUnited Airlines
9h 59mEWR-ONT
$257
8/13Tue
1 stopUnited Airlines
10h 06mONT-EWR
9/1Sun
1 stopUnited Airlines
9h 02mEWR-ONT
$326

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Recent one-way flight deals

6/9Sun
nonstopFrontier
1h 27mONT-SFO
$38
6/18Tue
nonstopFrontier
2h 20mONT-DEN
$38
7/30Tue
1 stopDelta
5h 03mONT-SEA
$88
8/23Fri
nonstopAlaska Airlines
2h 38mONT-SEA
$99
7/31Wed
1 stopAmerican Airlines
6h 36mONT-SFO
$108
8/20Tue
1 stopDelta
5h 57mONT-DFW
$108
8/23Fri
1 stopAlaska Airlines
4h 37mONT-SEA
$108
8/6Tue
1 stopAmerican Airlines
8h 34mONT-LGA
$113
7/2Tue
nonstopUnited Airlines
2h 25mONT-DEN
$119
8/27Tue
1 stopUnited Airlines
4h 35mONT-SEA
$123

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Last minute flights from Ontario to North America

Last minute flight, train and bus deals

6/4Tue
nonstopFrontier
1h 28mONT-SFO
6/6Thu
nonstopFrontier
1h 23mSFO-ONT
$84
6/3Mon
nonstopFrontier
1h 28mONT-SFO
6/6Thu
nonstopFrontier
1h 23mSFO-ONT
$85
6/4Tue
multi-stopDelta
6h 12mONT-ORD
6/8Sat
multi-stopDelta
6h 22mORD-ONT
$279
6/3Mon
multi-stopDelta
10h 44mONT-ORD
6/11Tue
multi-stopDelta
13h 12mORD-ONT
$284
6/5Wed
nonstopUnited Airlines
1h 25mONT-SFO
6/5Wed
nonstopUnited Airlines
1h 35mSFO-ONT
$294
6/5Wed
multi-stopAmerican Airlines
10h 30mONT-JFK
6/12Wed
multi-stopAmerican Airlines
11h 09mJFK-ONT
$310
6/4Tue
multi-stopAmerican Airlines
7h 20mONT-LGA
6/8Sat
multi-stopAmerican Airlines
9h 15mLGA-ONT
$321
6/1Sat
nonstopUnited Airlines
1h 25mONT-SFO
6/8Sat
nonstopUnited Airlines
1h 32mSFO-ONT
$324
6/5Wed
multi-stopAlaska Airlines
19h 17mONT-HNL
6/25Tue
multi-stopAlaska Airlines
14h 56mHNL-ONT
$455
6/3Mon
multi-stopAlaska Airlines
10h 38mONT-HNL
6/11Tue
multi-stopAlaska Airlines
13h 58mHNL-ONT
$460

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Ontario - North America Flights

Departure:

Ontario (ONT)United States

Return flight deals:

North America - Ontario

Cabin classes:

$382
$153
$274
$36