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$40 Find cheap flights from Ontario to North America

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to North America departing on 8/21. 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 7/15
Mon 7/22

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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$158
Las Vegas
Las Vegasnonstop$38
Miami
Miami1 stop$163
San Francisco
San Franciscononstop$38
Chicago
Chicago1 stop$116
Boston
Boston1 stop$248
Washington, D.C.
Baltimore1 stop$158
Denver
Denvernonstop$46
Seattle
Seattlenonstop$48
Fort Lauderdale
Fort Lauderdale1 stop$260
Atlanta
Atlanta1 stop$155
Dallas
Dallasnonstop$68
Cancún
Cancún1 stop$256
Tampa
Tampa1 stop$160
Houston
Houstonnonstop$58
Honolulu
Honolulunonstop$239

Good to know

Low season

January

High season

July

Cheapest flight

$40
Best time to beat the crowds with an average 0% drop in price.
Most popular time to fly with an average 13% 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 $95 one-way - $162 round-trip; Dallas $151 one-way - $339 round-trip; Seattle $91 one-way - $128 round-trip
  • Morning departure is around 6% 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 9281 reviews
8.6Crew
7.3Food
8.2Boarding
7.9Comfort
7.3Entertainment
Airline reviews

The staff were nice and the plane was clean, but charging for everything beyond the ticket was, quite frankly, poor customer service on your part. A cross-country flight should include at least a sandwich and one checked bag. This was my first Alaska flight and was booked because of convenience, but it might not have been worth it because of the baggage fee. United had free wi-fi and free movies, at least. Southwest allows for one free checked bag and has prices comparable to yours.

6.0 GoodAnonymous, Jun 2024SAN - TPA
Read more about Alaska Airlines reviews

The staff were nice and the plane was clean, but charging for everything beyond the ticket was, quite frankly, poor customer service on your part. A cross-country flight should include at least a sandwich and one checked bag. This was my first Alaska flight and was booked because of convenience, but it might not have been worth it because of the baggage fee. United had free wi-fi and free movies, at least. Southwest allows for one free checked bag and has prices comparable to yours.

Crew was great snacks could be approved upon. Healthier options

It was cancelled due to crew. I missed a special family graduation due to this

Soda cans were mini-size; snacks were teeny. Options for entertainment on trans-continent flights were bad - no seat screens and no way to support device (as seen on other airlines) so had to hold device in position. Just overall, not good (compared to United)

I like the big picture of the Eskimo on the tail of the plane.

Everything was great but there were no entertainment options available.

Flight was delayed 2 hours. It was too cold inside the cabin. My seat mate had no jacket so she was shivering the entire flight. The stewardess says there’s no available blanket.

The plane had to sit on the tarmac for 45 minutes once it had landed. Not Alaska’s fault.

No prob with entertainment-would have selected n/a if it had been an option. No entertainment-flight was only a short hop. Great flight,

I love having assigned seats and being able to check bags at the gate, if needed. Both are super-helpful when traveling with a toddler!!!

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

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.

Frankfurt airport is the worst. Passengers are forced to use stairs to get to the terminal or catch a shuttle. Very inconvenient for passengers who are ambulatory challenged or have physical handicaps.

The entertainment wasn’t playing in the app or online.

Why does it have to be painful to fly long distances?

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

Food is very bad and entertint not too many options ... flight attendet service is not good

Everything was pretty good except for food. They need to improve on it compared to other airlines.

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

I had a great flight. Everything went smoothly and the flight arrived early.

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!

The A321(?) model of the flight for 5+hrs has no seat back screens. Getting the american airlines wifi experience to watch movies on your own devices is not the same.

The flight was delayed several times without explanation. The seats were terribly uncomfortable and wifi isn’t included. All these make for a less than ideal flight.

Internet service was erratic. Crew service was poor and slow. My luggage on this non-stop flight was lost and not recovered

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!

Online check-in was not user-friendly. Too many fees, not cost effective.

They wouldn’t let us on the flight even tho we were an hour early. No refund not even our bags that were prepaid

I brought a ticket and car rental through Travelocity. There was no where to add a KTN. So I thought i’d add it by looking up ticket on frontier website. I tried 3 times with the frontier chat bot to add my KTN it never updated my boarding pass. So then I tried showing up early to do it in person at the airport. The first employee update my ktn in the system and gave me a new boarding pass. I was sent back by tsa to join regular line. Then I was told to add my Ktn. It would cost me $25 extra. Given the length of the cue I did pay. Congratulations! BUT I will NEVER fly frontier again. Plus the plane was very old. It had actual ashtrays and old looking tray backs. Worst travel experience ever. Im warning my friends and family not to use frontier ever.

I did not enjoy the trip home on Frontier for several reasons: there is too much cost besides the flight, which was more than I would normally pay, then having to pay for luggage, and carry-on, seat (if you want to reserve when booking) then you must pay over $3 for a can of soda, and $4 for a snack. A cup of water is free.

Did not realize seats did not recline. Best to travel in an exit row... No question

I strongly dislike Frontier. I find them barebones, the seats not particularly comfortable, the nickel and diming is maddening, the app is TERRIBLE - super confusing to navigate, and the last 4 frontier flights I have flown have been on AVERAGE 2 hours late, one ruining a fancy night out in Vegas with reservations made well in advance, which was nodded to with a measly 5000 miles, which translates to almost nothing. At least credit a free checked bag or something.

8 hr delay. had to buy another ticket with another airline

Four and a half hour delay in total. What frustrates me most is the poor communication and disorganization.

I appreciated the upgrade to free cary-on bag and seat selection at no charge

FRONTIER SUCKS! The agent downstairs tricked me into booking, just to get to the gate. At the gate, they told me they couldn't help. I then called Customer Service. They and the gate attendants kept blaming each other. Neither side was willing to help the customer.

Book cheap flights from Ontario to North America

Recent round-trip flight deals

8/21Wed
nonstopFrontier
1h 26mONT-SFO
8/24Sat
nonstopFrontier
1h 21mSFO-ONT
$40
8/18Sun
nonstopFrontier
1h 26mONT-SFO
8/21Wed
nonstopFrontier
1h 21mSFO-ONT
$43
8/10Sat
nonstopAmerican Airlines
3h 02mONT-DFW
8/10Sat
nonstopAmerican Airlines
3h 09mDFW-ONT
$134
7/23Tue
nonstopAlaska Airlines
2h 35mONT-SEA
7/23Tue
nonstopAlaska Airlines
2h 33mSEA-ONT
$151
10/9Wed
nonstopAlaska Airlines
2h 48mONT-SEA
10/12Sat
1 stopAlaska Airlines
6h 12mSEA-ONT
$166
8/19Mon
nonstopDelta
2h 41mONT-SEA
8/20Tue
nonstopDelta
2h 54mSEA-ONT
$167
8/6Tue
1 stopDelta
6h 59mONT-SEA
8/8Thu
1 stopDelta
6h 45mSEA-ONT
$186
7/9Tue
1 stopUnited Airlines
6h 07mONT-SEA
7/16Tue
1 stopUnited Airlines
4h 48mSEA-ONT
$209
7/4Thu
nonstopUnited Airlines
1h 20mONT-SFO
7/4Thu
nonstopUnited Airlines
1h 30mSFO-ONT
$224
8/22Thu
1 stopAmerican Airlines
4h 32mONT-DEN
8/25Sun
1 stopAmerican Airlines
5h 41mDEN-ONT
$237

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Recent one-way flight deals

7/14Sun
nonstopFrontier
2h 20mONT-DEN
$41
7/28Sun
nonstopFrontier
1h 26mONT-SFO
$42
9/13Fri
nonstopAlaska Airlines
2h 38mONT-SEA
$79
7/16Tue
1 stopDelta
5h 03mONT-SEA
$88
8/12Mon
nonstopAmerican Airlines
3h 01mONT-DFW
$90
7/30Tue
1 stopDelta
4h 50mONT-DEN
$98
8/11Sun
1 stopAlaska Airlines
5h 52mONT-SEA
$98
8/14Wed
1 stopAmerican Airlines
6h 14mONT-SFO
$99
6/29Sat
nonstopUnited Airlines
2h 25mONT-DEN
$119
7/6Sat
1 stopUnited Airlines
6h 17mONT-SEA
$121

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Last minute flights from Ontario to North America

Last minute flight, train and bus deals

6/19Wed
nonstopFrontier
1h 28mONT-SFO
6/22Sat
nonstopFrontier
1h 23mSFO-ONT
$102
6/19Wed
nonstopFrontier
1h 28mONT-SFO
6/24Mon
nonstopFrontier
1h 23mSFO-ONT
$103
6/19Wed
multi-stopAmerican Airlines
10h 29mONT-JFK
6/22Sat
multi-stopAmerican Airlines
9h 53mJFK-ONT
$327
6/17Mon
multi-stopAmerican Airlines
10h 34mONT-JFK
6/21Fri
multi-stopAmerican Airlines
10h 34mJFK-ONT
$334
6/17Mon
nonstopAlaska Airlines
2h 35mONT-SEA
8/12Mon
nonstopAlaska Airlines
2h 35mSEA-ONT
$382
6/16Sun
multi-stopDelta
7h 44mONT-ORD
6/17Mon
multi-stopDelta
9h 47mORD-ONT
$405
6/18Tue
multi-stopAlaska Airlines
4h 17mONT-SEA
8/18Sun
multi-stopAlaska Airlines
6h 05mSEA-ONT
$436
6/17Mon
multi-stopDelta
9h 55mONT-JFK
6/21Fri
multi-stopDelta
9h 02mJFK-ONT
$438
6/16Sun
multi-stopUnited Airlines
8h 55mONT-HNL
6/19Wed
multi-stopUnited Airlines
10h 27mHNL-ONT
$462
6/20Thu
multi-stopUnited Airlines
7h 01mONT-LGA
7/4Thu
multi-stopUnited Airlines
10h 16mLGA-ONT
$481

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Ontario - North America Flights

Departure:

Ontario (ONT)United States

Return flight deals:

North America - Ontario

Cabin classes:

$356
$153
$296
$37