HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Japan

$407+ Cheap flights from Ontario (ONT) to Japan

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FUK
May 4 — May 111
Mon 5/4
Mon 5/11
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Japan with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to Japan

Cheapest flights from Ontario to Japan
Explore the most affordable flight options available from Ontario to Japan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 4, 2026.

This Kiwi.com deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:33 pm
ONT
-
NRT
1 stop31h 27m
Multiple Airlines
Mon 8/319:30 pm
NRT
-
ONT
1 stop31h 12m
Multiple Airlines
Deal found 4/3$763
This Kiwi.com deal was found by Cheapflights users on 4/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/128:33 pm
ONT
-
NRT
1 stop31h 27m
Multiple Airlines
Fri 8/219:30 pm
NRT
-
ONT
1 stop29h 28m
Multiple Airlines
Deal found 4/1$775
This Kiwi.com deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:44 pm
ONT
-
NRT
2 stops50h 41m
Multiple Airlines
Wed 5/610:30 am
NRT
-
ONT
1 stop37h 05m
Multiple Airlines
Deal found 3/30$793
This Kiwi.com deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/168:33 pm
ONT
-
NRT
1 stop31h 27m
Multiple Airlines
Sat 8/299:30 pm
NRT
-
ONT
1 stop29h 28m
Multiple Airlines
Deal found 4/2$852
This Kiwi.com deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2711:44 am
ONT
-
NRT
2 stops35h 06m
Multiple Airlines
Mon 5/49:30 pm
NRT
-
ONT
1 stop31h 35m
Multiple Airlines
Deal found 3/29$886
This Super.com deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:45 am
ONT
-
NRT
1 stop20h 30m
China Airlines
Sat 9/122:30 pm
NRT
-
ONT
1 stop20h 10m
China Airlines
Deal found 4/3$887
This Super.com deal was found by Cheapflights users on 4/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:45 am
ONT
-
NRT
1 stop23h 50m
China Airlines
Sat 9/192:30 pm
NRT
-
ONT
1 stop19h 30m
China Airlines
Deal found 4/3$889
This oojo deal was found by Cheapflights users on 4/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2911:50 pm
ONT
-
FUK
1 stop27h 45m
China Airlines
Thu 11/128:35 pm
FUK
-
ONT
1 stop37h 15m
China Airlines
Deal found 4/2$897
This oojo deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:45 am
ONT
-
KIX
1 stop19h 15m
China Airlines
Thu 9/102:00 pm
KIX
-
ONT
1 stop20h 40m
China Airlines
Deal found 3/30$900
This oojo deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:45 am
ONT
-
KIX
1 stop20h 05m
China Airlines
Wed 9/161:10 pm
KIX
-
ONT
1 stop20h 50m
China Airlines
Deal found 3/30$904
This SmartFares deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:10 am
ONT
-
KIX
1 stop19h 50m
China Airlines
Tue 9/291:10 pm
KIX
-
ONT
1 stop20h 50m
China Airlines
Deal found 3/30$909
This SmartFares deal was found by Cheapflights users on 3/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:45 am
ONT
-
KIX
1 stop20h 05m
China Airlines
Sat 9/122:00 pm
KIX
-
ONT
1 stop20h 40m
China Airlines
Deal found 3/31$910

Find flight deals from Ontario to Japan

Keep the following information in mind while searching for Ontario to Japan flight deals. Data was last updated April 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$763
(Kiwi.com)

One-way from

$407
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$846
Provider with most accurate pricing for Los Angeles-Tokyo (TYO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Tokyo (TYO) flights.
Search Deals
From Ontario to Japan
Search Deals
One-way flight from Ontario to Japan
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($136 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Japan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 4, 2026.
Use the filters below to find and compare flights from Ontario to Japan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioOkinawa

ONT - OKA

ONTOKA

Ontario

Thu 9/3

12:45 am-7:45 pm

1 stop27h 00m

Okinawa Naha

Tue 9/8

11:55 am-6:40 pm

1 stop22h 45m

$973

OntarioFukuoka

ONT - FUK

ONTFUK

Ontario

Sun 8/30

12:45 am-9:55 am

1 stop17h 10m

Fukuoka

Thu 9/3

9:00 pm-6:40 pm

1 stop37h 40m

$981

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Sun 9/6

12:45 am-12:00 pm

1 stop19h 15m

Osaka Kansai Intl

Thu 9/10

7:05 pm-6:40 pm

1 stop39h 35m

$988

OntarioHiroshima

ONT - HIJ

ONTHIJ

Ontario

Mon 9/7

12:45 am-10:35 am

1 stop17h 50m

Hiroshima

Thu 9/10

11:35 am-6:40 pm

1 stop23h 05m

$988

OntarioNagoya

ONT - NGO

ONTNGO

Ontario

Sat 9/5

12:45 am-9:05 pm

1 stop28h 20m

Nagoya Chubu Centrair Intl

Wed 9/9

9:55 am-6:40 pm

1 stop24h 45m

$1,005

OntarioSapporo

ONT - CTS

ONTCTS

Ontario

Sat 9/5

12:45 am-1:35 pm

1 stop20h 50m

Sapporo Chitose

Wed 9/9

3:05 pm-6:40 pm

1 stop19h 35m

$1,052

OntarioTokyo

ONT - HND

ONTHND

Ontario

Fri 9/4

12:45 am-10:15 pm

1 stop29h 30m

Tokyo Haneda

Tue 9/15

2:30 pm-6:40 pm

1 stop20h 10m

$1,071

OntarioOkinawa

ONT - OKA

ONTOKA

Ontario

Sun 8/30

12:45 am-7:45 pm

1 stop27h 00m

Okinawa Naha

Fri 9/4

11:55 am-6:40 pm

1 stop22h 45m

$1,073

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Mon 8/10

6:02 am-4:00 pm

1 stop17h 58m

Tokyo Narita

Tue 8/18

6:00 pm-4:30 pm

1 stop14h 30m

$1,076

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Thu 9/24

6:00 am-4:00 pm

1 stop18h 00m

Tokyo Narita

Wed 10/7

6:00 pm-10:39 pm

1 stop20h 39m

$1,100

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Ontario to Japan

Have a flexible travel schedule? Discover the best time to fly to Japan from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Ontario to Japan?

Currently, April is the cheapest month in which you can book a flight from Ontario to Japan (average of $217). Flying from Ontario to Japan in June is currently the most expensive (average of $672). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Japan

Get insights into the airlines that provide service to Japan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Japan. Reviews last updated April 4, 2026.
See what other customers who have flown with China Airlines,Alaska Airlines, andDelta from Ontario to Japan have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.3
Very good
815 reviews

Entertainment

8.0

Comfort

8.0

Boarding

8.3

Food

7.8

Overall

8.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.
China Airlines
8.3
Very good
815 reviews
China Airlines
8.3
Very good
815 reviews

Entertainment

8.0

Comfort

8.0

Boarding

8.3

Food

7.8

Overall

8.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.
Alaska Airlines
7.9
Good
12,163 reviews
China Airlines
8.3
Very good
815 reviews

Entertainment

8.0

Comfort

8.0

Boarding

8.3

Food

7.8

Overall

8.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.
Delta
7.9
Good
8,382 reviews
China Airlines
8.3
Very good
815 reviews

Entertainment

8.0

Comfort

8.0

Boarding

8.3

Food

7.8

Overall

8.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.
United Airlines
7.4
Good
9,541 reviews
China Airlines
8.3
Very good
815 reviews

Entertainment

8.0

Comfort

8.0

Boarding

8.3

Food

7.8

Overall

8.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.
American Airlines
7.1
Good
11,556 reviews
China Airlines
8.3
Very good
815 reviews

Entertainment

8.0

Comfort

8.0

Boarding

8.3

Food

7.8

Overall

8.3

Crew

8.5

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Japan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Japan?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Japan. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

  • How long is the flight from Ontario to Japan?

    Airlines like China Airlines, STARLUX Airlines, and United Airlines fly from Ontario to Japan in about 22h 35m. The time it takes to get you to your destination can typically vary by up to 4h 25m. Airlines will cover a distance of 5505 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Ontario to Japan?

    The most popular flight routes from Ontario to Japan are Ontario - Tokyo Narita, Ontario - Tokyo Haneda and Ontario - Osaka Kansai Intl.

  • Can I find deals for flights from Ontario to Japan that include hotel bookings?

    Yes. In addition to deals on Ontario to Japan flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Japan?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Japan.

  • Can I find deals for business class flights from Ontario to Japan?

    Yes. Cheapflights offers flight deals from Ontario to Japan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Japan?

    Currently, April is the cheapest month in which you can book a flight from Ontario to Japan (average of $217). Flying from Ontario to Japan in June is currently the most expensive (average of $672). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 4 airlines flying from Ontario to Japan

Discover the top 4 airlines that operate flights from Ontario to Japan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$632Average$1,206FlexibilityNo cancel feeOn-time70%
DeltaCheapest$743Average$1,161FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$783Average$990FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$829Average$1,105FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.