$312 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 2/2. 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
1 adult, Economy, 0 bags

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Cheap Flights from Ontario to Japan

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Tokyo
Tokyo1 stop$591
Okinawa
Okinawa2 stops$800
Hiroshima
Hiroshima2 stops$882
Tokyo
Tokyo1 stop$591
Okinawa
Okinawa2 stops$800
Hiroshima
Hiroshima2 stops$882

Book Cheap Ontario to Japan Plane Tickets

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Japan

Mon, Feb 16 - Thu, Feb 26
Hawaiian Airlines Logo
6:14 am - 4:00 pm
ONT
-
NRT
16h 46m1 stop
Hawaiian Airlines Logo
6:30 pm - 3:08 pm
NRT
-
ONT
13h 38m1 stop
$591Hawaiian Airlines
Sun, Feb 8 - Thu, Feb 19
Hawaiian Airlines Logo
6:00 am - 4:00 pm
ONT
-
NRT
17h 00m1 stop
Hawaiian Airlines Logo
6:30 pm - 3:08 pm
NRT
-
ONT
13h 38m1 stop
$592Hawaiian Airlines
Sun, Jan 18 - Tue, Feb 3
American Airlines Logo
6:00 am - 6:30 pm
ONT
-
HND
19h 30m1 stop
American Airlines Logo
5:55 pm - 6:45 pm
HND
-
ONT
17h 50m1 stop
$676American Airlines
Sun, Jan 18 - Tue, Feb 3
American Airlines Logo
6:00 am - 6:30 pm
ONT
-
HND
19h 30m1 stop
American Airlines Logo
5:55 pm - 6:45 pm
HND
-
ONT
17h 50m1 stop
$678American Airlines
Sun, Jan 25 - Thu, Feb 5
Delta Logo
5:10 pm - 2:05 pm
ONT
-
HND
27h 55m2 stops
Delta Logo
4:50 pm - 1:56 pm
HND
-
ONT
14h 06m1 stop
$692Delta
Sat, Jan 17 - Wed, Jan 28
Delta Logo
3:30 pm - 2:05 pm
ONT
-
HND
29h 35m1 stop
Delta Logo
4:50 pm - 10:51 pm
HND
-
ONT
23h 01m1 stop
$693Delta
Wed, Jan 14 - Wed, Jan 21
United Airlines Logo
6:00 am - 4:40 pm
ONT
-
KIX
17h 40m1 stop
United Airlines Logo
6:35 pm - 10:53 pm
KIX
-
ONT
21h 18m1 stop
$739United Airlines
Wed, Jan 21 - Wed, Feb 4
United Airlines Logo
6:00 am - 4:40 pm
ONT
-
KIX
17h 40m1 stop
United Airlines Logo
11:00 pm - 10:53 pm
KIX
-
ONT
16h 53m1 stop
$740United Airlines
Wed, Feb 4 - Tue, Feb 17
China Airlines Logo
10:50 pm - 10:15 am
ONT
-
HIJ
18h 25m1 stop
China Airlines Logo
11:15 am - 4:50 pm
HIJ
-
ONT
22h 35m1 stop
$939China Airlines
Sun, Apr 12 - Tue, May 5
China Airlines Logo
12:10 am - 1:35 pm
ONT
-
CTS
21h 25m1 stop
China Airlines Logo
3:05 pm - 6:00 pm
CTS
-
ONT
18h 55m1 stop
$941China Airlines
Booking Insights

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 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 January, when tickets cost $684 (return) on average. On the other hand, the most expensive months are December and March, when the average cost of round-trip tickets is $1,491 and $1,139 respectively.

Good to know

Low seasonAugust
Cheapest flight$312
Best time to beat the crowds but there is an average 19% increase in price.
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.

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.

Reviews of the 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
China AirlinesOverall score based on 798 reviews
8.0Comfort
8.5Crew
8.0Entertainment
8.3Boarding
7.8Food
Airline reviews

Flight attendants. Food, entertainment and most of all, be on time.

8.0 ExcellentAnonymous, Dec 2025
PHX - TPE
Read more China Airlines reviews

Flight attendants. Food, entertainment and most of all, be on time.

Very bad. They don’t allow group people to sit together by blocking most of seats and opening only single seat during online checking in. . By doing so, they can rip off customers at the check-in counter by collecting extra money if we want to sit together in the same row.

We are glad to have used China Airlines for our trip. Continue the good service! Thank you!

The flat bed full lying position is not comfortable at all, this could be improved, it is at an awkward position which i dont have the same issues with other airlines business class.

The flight was uneventful and the crew was kind and professional. Really appreciate the option to order a vegan meal for the flight!

I love my Delta crew, they were so welcoming and helpful.

I absolutely loved my flight from Taipei to LAX. I was originally assigned to a different seat, however one of the stewardess noticed I was uncomfortable in my seat. She offered to move me to a more comfortable setting. Although she didn’t have to do what she did, I am more than grateful and thankful for her doing so. My longer flight felt much more comfortable, just by her taking notice. I really appreciate her.

Overall was a lovely experience. The crew were kind and courteous throughout the entire flight.

Sat next to a woman who had her period. Blood was on her seat and on the arm rest between us. I ended up having period blood on my jacket and shoes. Very gross!

Better organization of boarding procedures. Terrible leadership guiding people to gates.

Late leaving so threatened our connection in Vegas to Seattle. We did make up time and made our connection.

I behave had better flights this one was old and poor

They canceled my flight with only a couple hours before checking in at the airport and offered no alternatives to get home.

I had entered my TSA pre number when I bought the ticket but TSA pre was not on my boarding pass. I went to find an agent at check in and there was only one agent one duty for first class and a line of people waiting for check in/baggage with no agent manning that area.

I haven’t flown in over 20 years and had my grandkids, so I had lots of questions. They were very polite and helpful . Thank you.

Dropping off of the checked bags took way longer than it should have. The agent for the pre-tagged and ready to drop off line was gone and didn't come back for about 15 minutes. The other bag check lines were barely moving. Agents were standing around and not much was getting done. Everything else about the flight was great.

Was notified the departure would be late. Later on it was suddenly on time. Traffic by LAX was horrendous, and I missed the flight.

Flight delayed three times no explanation, left 5 hours after initial time, disrupted my job

The flights were all late and they would not refund my money

I wasn’t able to check in prior to arriving at the airport, I was told by the agent I may not get a seat on the plane as others were waiting for seats, I sat there for 2 hours before being assigned a seat, very stressful. The plane was delayed. Overall not a great travel experience for a 44 minute flight.

The flight was delayed for about 2 hrs. Other than it, it was good.

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

I boarded flight UA#1318 at Sacramento International Airport going back to Houston TX. The flight was scheduled at 5:10am. I was able to check in virtually using the United Airlines app. When I entered the airport, there was no one outside assisting with checked bags as it was for Delta Airlines. Immediately upon entering, there was a LONG, EXTREMELY LONG line to the kiosks to get boarding passes. I stand in line to get boarding passes then had to move to ANOTHER EXTREMELY LONG line to get my bags checked in. While standing in this line, we noticed an agent taking customers to 3 at a time to her station to check their bags in. Lucky for me, she called me back, checked my bags for me and I was on my way. I then encountered another long line at the TSA check and to avoid I ending up having to sign up for CLEAR to bypass it. So glad, I did.,...Both of my flights were great with no issues, butthe check in progress at Bush Airport was so much smoother. Check-in at SMF airport needs to be anaylzed and corrected. Do better United, I know you can....thanks

Pushed back only to get deplaned due to a tire damaged by ground crew. They did at least go pretty fast. The bathrooms should be banned under the Geneva convention. No room to even sit straight on the toilet. The under-seat entertainment units block what little leg room there is.

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

from SFO-> FRA flight, AVML meal was significantly less compared to regular meal, especially no Desert, no Bread, no sides.

This was an older airplane. The cabin was constantly warm to hot throughout the 10 hour flight and there were no vents to personalize air flow. Also since it was an older plane, the material and comfort of the chairs were very uncomfortable. I left my flight with major soreness on my tailbone.

Older aircraft, no meal, only food was for purchase. Not impressed United.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

My experience on this United Airlines flight was highly uncomfortable, primarily due to two issues: Cabin Temperature: The temperature on the Boeing 737 MAX 8 was unacceptably high, feeling consistently around 80 degrees throughout the flight. This made sleeping impossible and significantly detracted from the experience. Seating Arrangement: Being stuck in a middle seat for a six-and-a-half-hour overnight flight compounded the discomfort. Moving forward, I will always purchase a seat assignment to avoid this situation.

Premium Plus is a really good idea for longer flights

Same as last comment. Food sucks. Quality. Not surprising most people have no clue about nourishment Clearly

The flight was very smooth and the meal in business class was great.

I requested a low sodium meal. Reason being, I take medicine for high blood pressure and I wear compression socks on long flights to help with leg swelling. Having less sodium in meals really helps me feel better on long flights. I received my initial low sodium meal after takeoff. Just before landing, the crew came through with the meal cart and offered me what was being served. I said no thank you and then noticed my low sodium meal in the meal cart, with my name and seat assignment on it. I motioned to the crew member, but he grabbed the meal cart and proceeded to move to the rear of the aircraft. He didn’t see me or other passengers who had attempted to get this attention. He was more concerned about completing meal service since we were due to land in under 45 minutes. I pressed the call light five times from my seat to receive help, but no crew member responded to me. So, I didn’t receive a second meal, one that I requested (the low sodium option). This led me to have a migraine from only eating one meal on an 11-hour flight. This is why I’m not a fan of flying US-based airlines overseas. The crew members continue to show the absolute worst customer service experience. I would not recommend flying American for overseas flights.

Not great. Booked Extra seats and got nothing extra at all. It’s basically a big budget airline.

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

The flight was flawless and we even arrived between 20 and 25 minutes early!

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

It was a red eye flight, so no meals were provided, but it was fine with snacks. The seats felt cramped and almost too narrow.

Very crowded flight but what can you expect these days?? Crew was accommodating.

Everything you need to know for your flight from Ontario to Japan

Information on your arrival and departure airports