$346 Find Cheap Flights from Ontario to Japan

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 Japan departing on 4/24. 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.
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Best Japan Flight Deals from Ontario

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

Tokyo
Tokyo1 stop$757
Okinawa
Okinawa2 stops$827

Cheap Flight Deals from Ontario to Japan (ONT-JP0)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Japan that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Ontario to Japan

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Ontario to Japan.
Discover the best prices for you by selecting your travel dates on KAYAK.
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6:38 am - 3:55 pmONT-HND
17h 17m1 stop
4:30 pm - 9:56 pmHND-ONT
21h 26m1 stop
$757American Airlines
Find Deal
Thu, Sep 11 - Wed, Sep 17
6:38 am - 3:55 pmONT-HND
17h 17m1 stop
4:25 pm - 5:51 pmHND-ONT
17h 26m2 stops
$762American Airlines
Find Deal
Thu, Sep 11 - Wed, Sep 17
6:48 am - 4:45 pmONT-NRT
17h 57m2 stops
5:20 pm - 5:51 pmNRT-ONT
16h 31m2 stops
$763American Airlines
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Thu, Sep 11 - Wed, Sep 17
6:36 pm - 7:00 pmONT-HND
32h 24m2 stops
9:55 pm - 5:42 pmHND-ONT
35h 47m2 stops
$784United Airlines
Find Deal
Thu, Sep 11 - Wed, Sep 17
6:36 pm - 4:30 amONT-HND
17h 54m1 stop
9:55 pm - 12:13 pmHND-ONT
30h 18m2 stops
$785United Airlines
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Mon, Sep 15 - Mon, Sep 22
8:35 am - 7:30 pmONT-HND
18h 55m1 stop
8:05 pm - 9:55 pmHND-ONT
18h 50m1 stop
$818Hawaiian Airlines
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Mon, Sep 1 - Wed, Nov 19
6:00 am - 4:00 pmONT-NRT
18h 00m1 stop
6:25 pm - 11:59 pmNRT-ONT
21h 34m1 stop
$819Hawaiian Airlines
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Wed, Sep 17 - Tue, Sep 30
12:45 am - 6:05 pmONT-FUK
25h 20m1 stop
9:00 pm - 6:40 pmFUK-ONT
37h 40m1 stop
$984China Airlines
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Tue, Aug 26 - Wed, Sep 3
12:10 am - 7:45 pmONT-OKA
27h 35m1 stop
11:50 am - 6:00 pmOKA-ONT
22h 10m1 stop
$986China Airlines
Find Deal
Wed, Apr 23 - Tue, May 6
6:00 am - 7:50 pmONT-ITM
21h 50m2 stops
2:35 pm - 6:23 pmITM-ONT
19h 48m2 stops
$1,895Japan Airlines
Find Deal
Fri, Aug 8 - Sat, Aug 23

KAYAK's insights & trends for Ontario to Japan flights

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

What is the cheapest time of day to fly to Japan?

The average price for all round-trip flights from Ontario to Japan depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Japan is generally in the afternoon, when round-trip flights cost $986 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. The most expensive time of day to fly to Japan is generally at night, which is peak travel time and where the average cost of a ticket is $1,036.

What is the cheapest month to fly from Ontario to Japan?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Japan, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Ontario to Japan is October, when tickets cost $811 (return) on average. On the other hand, the most expensive months are December and July, when the average cost of round-trip tickets is $1,682 and $1,184 respectively.

Good to know

Low season

January

High season

March

Cheapest flight

$346
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly and prices are also 4% lower on average.
Flight from Ontario to Tokyo Narita Airport

FAQs - booking Japan flights

  • Can I fly with my pet from Ontario to Japan?

    Take your furry friend on your Japan trip by booking your tickets with United Airlines. They allow in-cabin pets such as small cats and dogs if there’s space available. If you’re traveling with two pets, you must book two tickets to bring both of them into the cabin. There is no limit on the weight of pets, but they should fit inside hard/soft-sided carrier boxes as per the airline policy.

  • How can I fly sustainably from Ontario to Japan?

    Firstly, take a flight with minimum layovers. If you’re flying from Ontario to Japan, you can fly into Tokyo Narita Airport and make it your base. Reduce fuel consumption by taking public or road transport such as trains, metro, bullet trains, and cabs.

  • What will be my possible layovers while flying from Ontario to Japan?

    When you fly from Ontario Airport to Tokyo Narita Airport, possible layovers will be at Seattle/Tacoma International Airport (SEA), San Francisco Airport International Airport (SFO), or Vancouver International Airport (YVR). If you’re flying into Osaka Airport, you will make stops at San Francisco International Airport and Haneda Airport.

  • How can I fly from Ontario to Japan to visit Mount Fuji?

    Japan trip is only complete with visiting Mount Fuji. Shizuoka Airport (FSZ) is close to Mount Fuji and has direct flights from Tokyo Airport. You can take a train from Tokyo to reach it, as there is a bullet train that runs between Tokyo and Mt. Fuji.

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

    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 Japan.

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

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

    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 from Ontario to Japan with an airline and back with another airline.

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

    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 to Japan 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 Japan

  • If you fly from Ontario to Japan, you will likely fly into Tokyo Narita Airport (NRT). This airport is preferred if you plan to explore Japan's countryside. Air Canada, United Airlines, and Japan Airlines have frequent flights on this route. This airport is the hub for Japan Airlines and All Nippon Airways.
  • Those planning to stay in Tokyo city will prefer flying into Tokyo Haneda Airlines (HND). Hawaiian Airlines and United Airlines have one-stop flights from Ontario Airport (ONT). These flights take approximately 16 hours to fly to Japan.
  • If you plan to attend the National Cherry Blossom Festival in Japan, you should fly to Osaka. United Airlines has a one-stop flight to Osaka Kansai International Airport (KIX). It is a long-haul flight of approximately 17 hours. Before your flight, you can relax at the Aspire Lounge situated at Terminal 2. Fuel yourself up with the hot meals served at the lounge. Your business class ticket with United Airlines will give you free access.
  • Temples of Kyoto are on many travelers’ lists of things to do in Japan. You can reach Kyoto by taking a United Airlines or Hawaiian Airlines flight to Osaka Airport and then take The Limited Express Haruka to Kyoto from Osaka Airport.
  • If you’re an American passport holder, you're allowed a visa-free visit to Japan for up to 90 days. Make sure your passport has two blank pages to ease your immigration process. Keep your return tickets and hotel booking details handy at the counter.
See more tips

Top 5 airlines serving from Ontario to Japan

Need help choosing which airline to fly with from Ontario to Japan? 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.
8.3
Japan AirlinesOverall score based on 1440 reviews
7.8Entertainment
7.7Food
8.4Boarding
8.2Comfort
8.7Crew
Airline reviews

This flight was leg 2 of 2 leg journey. The staff at baggage re-drop in Tokyo were fabulous. Once at gate when time to board, had to take standing room bus to the tarmac to board. Did not like getting out to plane and having to wait 5 minutes until they opened bus door.

8.0 ExcellentRena, Mar 2025NRT - ITM
Read more Japan Airlines reviews

This flight was leg 2 of 2 leg journey. The staff at baggage re-drop in Tokyo were fabulous. Once at gate when time to board, had to take standing room bus to the tarmac to board. Did not like getting out to plane and having to wait 5 minutes until they opened bus door.

First experience with JAL so was okay to pretty good. 10 hour flight in premium select seat. . Seats in that category should be better than pretty good. Seat pan a little short for tall people but plenty of leg room; I think JAL in process of new planes? Also, — they could have offered a bit more water throughout flight and meals not the greatest. That said, certainly 200 percent better than a very recent AK Air International flight in similar cabin class in comfort and meals.

It's a domestic flight, but still the JAL quality shone through. The crew were polite and helpful and even prepared little gifts / souvenirs for the children on the flight, and everyone got a simple drink. The free wifi for entertainment on the personal device was also a great boon, and the shows surprisingly decent. Would recommend.

We ordered for non vegetarian Hindu meal but instead they served us vegetarian Hindu meal. That was also not good. It was very annoying and aggravating. Hope our return from Tokyo to jfk on March 27 same is not repeated. Caterar should understand difference between non vegetarian Hindu meal and vegetarian Hindu meal.

Allow gold card holders (Group 1) to board with their guest like other One World carriers do

Checked baggage process is confusing and time consuming especially when checking oversized bags. Very slow agents didn't help.

Food was great, Entertainment was bad, movies were not current and just did not have good variety. Granted I was tired so cranky might have played into my evaluation. Overall based on cost I definitely would fly them again. I am a million mile flyer on another airline, the service on JAL really beats all airlines.

The team members are extremely attentive to make sure you have the best experience.

Was in premium economy. It is slightly better than economy, but the way the seat reclines actually makes it harder to sit (the seat slides forward and the foot rest comes up - you can lie fairly well reclined but you’ll have to sit cross legged because there is no place for your legs to stretch out. Food is basic economy. Service was great. All in all good, but may make more sense to pay more for business or save a bit and just sit in economy.

Seats in "Premium Economy" were noticeably more comfortable than those in "Economy" and worth the price. My only reservation is that the foot rest did not go higher up. If it did, it would have made the seat much more comfortable.

There wasn't much entertainment for my short flight but the onboarding process was smooth and the crew provided wonderful service. The seats were also reasonably comfy. Great flight.

I had to get rerouted because the weather delayed my flight enough to miss both of my connecting flights. I select nearly 2 hours on customer service trying to get rerouted and had to miss my first plane which took my luggage to San Francisco. Luckily, customer service sent me to the same airport but I had to ride 12 hours in economy after I paid extra for premium economy. Totally sucks that I overpaid. Customer service and airplane crew were great and really helpful though. Although I still hate how small the seat was, especially since I'm smaller than average, I can't imagine how much it would suck for an average sized person.

Cabin crew were excellent in taking care of my mom as she boarded the aircraft from her wheelchair. Did not care much for the food served.

I stopped flying with United back in the nineties. Today's experience reminded me of why.

Great airline all together - triple 7 for a short flight was a plus - lots of room

Wonderfully pleasant experience. Good meal and beverage selections. Professional air staff.

Seat width can be a bit wider. not nice that they charge extra for the window seats. online check in can be greatly improved. in other words, their online interface is bad.

Seat width can be a bit wider. not nice that they charge extra for the window seats.

Seats were comfortable with excellent legroom. Meals were also quite good. The cabin crew were excellent and very helpful. The check-in experience was also very smooth.

Seats had more space than expected. No recline, that is good.

It was our first time flying with China Airlines and had a very nice experience. The airline staff & crews both on the ground and air were very nice. Food on the plane was very good. Will recommend it to family and friends.

I don’t think I’ll be flying them again. Tight seats, no flowing air or air nozzles that you can turn air on you, for those who could have motion sickness this would be your worst nightmare. The pilot was great and experienced (which is what you want when flying 12 hours) overall I’m thankful knowledgeable pilots!

Very routh cabin crew food is only 2 meals for 13 hours fry with them They should get better training how to service good super routh language and talking with customer

staff are super nice and effiecient! It was a very comfortable and relaxing flight

When I booked a premium economy ticket. I then had to pay $100+ to book my seat.

Boarding could have been a little bit better but other than that it was a pretty good experience. I think because of the stowaway to Paris France recently they are being extra diligent about boarding passes at the gate. But they boarded the back of the plane first, and that's something I really think needs to start in the USA.

Didn't like on this return inbound flights (from Hong Kong to Vancouver) Outbound to the Hong Kong was good.

I did not take the flight, tried to cancel it right after I booked it, but was unable to reach anyone. I blame Kayak for this situation because they sent the booking through another company and I was unable to get anyone to talk to me about the situation. I had to just take the hit and pay for another flight through Cathay Pacific, which was wonderful. I will never use Kayak again. (I bet they don’t post this review!) I’ll just post about them on social media sites. I don’t want anyone to have to go through the hassle and expense I dealt with.

Airline itself is great. While food was being taken off of my tray my beer spilled which was a total accident and I wasn’t upset about that, what was frustrating was I had to ask for towels to clean up and wipe my leg. It would have been left as is if I hadn’t.

Bars and restaurants in Taipei close early. The lounge isn’t very good, but better than the public areas.

Compared with other carriers business class for an overnight was not worth the extra expense.

Seats were comfortable. It’s was so cold and very uncomfortable. I paid 2000 miles for wifi service that was choppy the whole flight. Would like to be reimbursed for my miles Food was so disappointing. Three cold and terrible meals for $3000 round trip. This needs to be better.

Easy to board. Flight was super crowded though so I didn't sleep well on that cross country red-eye flight. The aisles seem ot have gotten narrower and the seat smaller whn luggage and people are getting bigger so it would be AWESOME to have more space and breathing room in general ;)

Pilot Erika DeLong made us feel safe and at ease in a frankly scary time to be flying. Her warm smile and greeting and excellent command of the aircraft in foggy bumpy weather helped us all to calm our nerves and get us home safely.

Plenty of room for me and the cat in Premium Economy. Seat was comfortable. Boarding was a breeze. The lady at the special check-in desk was great, super helpful and professional.

Smooth flight. As always dinner could have been more generous. Breakfast was great.

AWFUL. I have had the experience of traveling with many airlines across the world, and hands down United Airlines is the worst. Not one flight was on time, and I don’t think I met one crew member or staff member who wasn’t rude.

Old and out of date plane, it seem like every time I fly with united there’s and issue. We were delayed,

We took off an hour late due to arrival airport not having enough gates. That was followed by 1:30 wait to get our bags delivered for the entire flight.

For an 8.5 hour flight the service on board lacked a bit. Service start was slow, the food was worse than usual and they skipped the snack they were supposed to deliver before landing.

We kept being told that the flight was full and that all overhead compartments were full and therefore had to check in our hand luggage. We were some of the last people to board and noticed that there was still sufficient space in the overhead compartments. We were obliged to check in hand luggage when there was space and so had to wait at luggage retrieval which took a while to then noticed damage to our luggage - not a great experience!

Worst seats I’ve ever had !!! The seats were very narrow and uncomfortable and misaligned with the seats in front of mine leading to bottom of the seat in front of mine pressing on my legs for 15.5 hours !

This was an overnight flight. There was no meal service in first class, just a simple snack basket was offered along with beverages. There should have been some type of continental breakfast prior to arrival in PHL. As an Executive Platinum American Airlines Advantage member, I received no name recognition from the first class flight attendant. When disembarking at PHL, the flight attendants were more interested in their cell phones than saying "thank you" to the passengers as they disembarked.

The flight was quick and to the point. The crew just did their job w/o excessive talking and everything was just perfect.

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

Amazingly comfy flight - I had upgraded for a reasonable price and it was worth it. The food also was good.

Had to wait on pilot and crew to depart and had to wait to arrive at the gate because they only had 2 crews working. Delays, delays....Planes just keep getting smaller and tighter and they nickle and dime for everything. When will an airline actually wake up and make flying more enjoyable?

I paid for what I got which was cheap, I brought my own entertainment. I knew what to expect, so I could be prepared. If you’re flying economy, check in early like me. I have no problems with my flight, was on time, staff were friendly, and overall good experience.

DO NOT BOOK THROUGH AMERICAN AIRLINES IF YOU HAVE ANY ADDITIONAL NEEDS. Great flight, crew etc. it wasn’t full so had space to stretch out Only downside was there was no GF option for my partner. We booked through American and it was a Qantas flight so despite contacting both airlines to confirm, she didn’t have a gluten free meal for the 16 hour flight (nor the flight in the other direction). The flight attendants did their best to accommodate but it was not super substantial.

After several delays and being rebooked onto a layer flight, I had to speak to three AA agents for baggage claim to get an attendant. All were in foul mode and reluctant to assist or offer any assistance.

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