Japan

$198+ Cheap flights from Ontario (ONT) to Japan

ONT — FUK
Dec 5 — Dec 121
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1. Tell us where you want to go

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Cheap flight deals from Ontario to Japan

Cheapest flights from Ontario to Japan

Tue 12/18:03 am -
1 stop17h 42m
Thu 12/178:45 pm -
1 stop20h 14m
Deal found 11/1$484
Thu 12/37:10 am -
2 stops42h 35m
Wed 12/168:45 pm -
2 stops40h 21m
Deal found 11/1$501
Wed 11/49:55 am -
1 stop16h 35m
Thu 2/48:05 pm -
1 stop18h 13m
Deal found 10/31$520
Mon 12/78:03 am -
1 stop17h 42m
Wed 12/168:45 pm -
1 stop17h 40m
Deal found 11/1$576
Fri 11/139:55 am -
1 stop39h 50m
Sat 12/58:45 pm -
1 stop17h 40m
Deal found 11/1$634
Tue 11/39:55 am -
1 stop38h 20m
Wed 11/118:05 pm -
1 stop19h 38m
Deal found 11/1$706
Mon 11/29:55 am -
1 stop16h 35m
Thu 11/128:05 pm -
1 stop19h 38m
Deal found 11/1$710
Tue 11/39:55 am -
1 stop38h 20m
Fri 11/139:20 pm -
1 stop18h 23m
Deal found 11/1$727
Mon 11/29:55 am -
1 stop16h 35m
Mon 11/99:20 pm -
1 stop18h 23m
Deal found 11/1$739
Sat 12/57:26 pm -
2 stops46h 54m
Thu 12/109:25 pm -
1 stop18h 58m
Deal found 11/2$751
Mon 11/169:55 am -
1 stop16h 35m
Thu 11/268:05 pm -
1 stop18h 18m
Deal found 11/1$755
Wed 11/49:55 am -
1 stop16h 35m
Sat 11/148:05 pm -
1 stop19h 38m
Deal found 11/1$760

Find flight deals from Ontario to Japan

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$456
(Booking.com)

One-way from

$198
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$961
Provider with most accurate pricing for Los Angeles-Tokyo (TYO) flight deals.
Provider most trusted by Cheapflights users for Los Angeles-Tokyo (TYO) flights.
From Ontario to Japan
One-way flight from Ontario to Japan
Highest demand for flights based on searches. 3% potential increase in price ($37 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
Average for round-trip flights in November 2026

Cheapflights Fare Finder

 
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

OntarioOsaka

ONT Ontario - KIX Osaka Kansai Intl

ONTKIX

Ontario

Mon 2/1

7:00 am-6:45 pm

1 stop18h 45m

Osaka Kansai Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$470

OntarioNagoya

ONT Ontario - NGO Nagoya Chubu Centrair Intl

ONTNGO

Ontario

Mon 2/1

10:50 pm-8:50 pm

1 stop29h 00m

Nagoya Chubu Centrair Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$606

OntarioFukuoka

ONT Ontario - FUK Fukuoka

ONTFUK

Ontario

Fri 4/30

12:10 am-8:00 pm

1 stop27h 50m

Fukuoka

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$614

OntarioOsaka

ONT Ontario - KIX Osaka Kansai Intl

ONTKIX

Ontario

Wed 1/6

10:50 pm-5:50 pm

1 stop26h 00m

Osaka Kansai Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$615

OntarioOsaka

ONT Ontario - KIX Osaka Kansai Intl

ONTKIX

Ontario

Tue 1/5

10:50 pm-11:35 am

1 stop19h 45m

Osaka Kansai Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$615

OntarioTokyo

ONT Ontario - NRT Tokyo Narita

ONTNRT

Ontario

Tue 4/27

12:10 am-8:50 pm

1 stop28h 40m

Tokyo Narita

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$615

OntarioNagoya

ONT Ontario - NGO Nagoya Chubu Centrair Intl

ONTNGO

Ontario

Tue 12/1

9:45 pm-7:05 pm

1 stop28h 20m

Nagoya Chubu Centrair Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$624

OntarioNagoya

ONT Ontario - NGO Nagoya Chubu Centrair Intl

ONTNGO

Ontario

Tue 12/1

10:50 pm-8:50 pm

1 stop29h 00m

Nagoya Chubu Centrair Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$633

OntarioOsaka

ONT Ontario - KIX Osaka Kansai Intl

ONTKIX

Ontario

Wed 1/27

9:45 pm-11:10 am

1 stop20h 25m

Osaka Kansai Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$648

OntarioOsaka

ONT Ontario - KIX Osaka Kansai Intl

ONTKIX

Ontario

Sat 1/30

9:45 pm-11:10 am

1 stop20h 25m

Osaka Kansai Intl

Wed 12/31

12:00 am-7:00 am

Nonstop0h 00m

$648

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Showing 1-10 of 60 resultsSorted by cheapest first
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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

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, August is the cheapest month in which you can book a flight from Ontario to Japan (average of $747). Flying from Ontario to Japan in December is currently the most expensive (average of $1,434). 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

See what other customers who have flown with STARLUX Airlines,China Airlines, andAlaska Airlines 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.

Boarding

8.8

Entertainment

8.6

Crew

9.1

Comfort

8.8

Food

8.6

Overall

8.8

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.

Boarding

8.8

Entertainment

8.6

Crew

9.1

Comfort

8.8

Food

8.6

Overall

8.8

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.

Boarding

8.8

Entertainment

8.6

Crew

9.1

Comfort

8.8

Food

8.6

Overall

8.8

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.

Boarding

8.8

Entertainment

8.6

Crew

9.1

Comfort

8.8

Food

8.6

Overall

8.8

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.

Boarding

8.8

Entertainment

8.6

Crew

9.1

Comfort

8.8

Food

8.6

Overall

8.8

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.

Boarding

8.8

Entertainment

8.6

Crew

9.1

Comfort

8.8

Food

8.6

Overall

8.8

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.

Related info for your journey

  • 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 Delta, United Airlines, and China Airlines fly from Ontario to Japan in about 15h 05m. The time it takes to get you to your destination can typically vary by up to 12h 40m. 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?

  • 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, August is the cheapest month in which you can book a flight from Ontario to Japan (average of $747). Flying from Ontario to Japan in December is currently the most expensive (average of $1,434). 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

Top 5 airlines flying from Ontario to Japan

AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$783Average$1,075FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$829Average$1,293FlexibilityNo cancel feeOn-time69%
China AirlinesCheapest$834Average$1,132FlexibilityNo cancel feeOn-time70%
STARLUX AirlinesCheapest$1,056Average$1,109FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$1,161Average$1,565FlexibilityNo cancel feeOn-timeN/A

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