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$338+ 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 4/20. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FUK
Apr 6 — Apr 131
Mon 4/6
Mon 4/13
1 adult, Economy
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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 March 7, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Thu 4/309:10 am
ONT
-
NRT
1 stop18h 50m
Multiple Airlines
Mon 5/119:30 pm
NRT
-
ONT
2 stops37h 04m
Multiple Airlines
Deal found 3/3$723
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Thu 4/309:10 am
ONT
-
NRT
1 stop18h 50m
Multiple Airlines
Sun 5/109:30 pm
NRT
-
ONT
2 stops38h 34m
Multiple Airlines
Deal found 3/3$731
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Thu 4/309:10 am
ONT
-
NRT
1 stop18h 50m
Multiple Airlines
Tue 5/129:30 pm
NRT
-
ONT
2 stops32h 10m
Multiple Airlines
Deal found 3/3$749
This Kiwi.com deal was found by Cheapflights users on 3/4. 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.
Fri 4/175:33 pm
ONT
-
NRT
2 stops52h 37m
Multiple Airlines
Fri 4/2410:30 am
NRT
-
ONT
1 stop22h 08m
Multiple Airlines
Deal found 3/4$751
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Sun 5/39:19 am
ONT
-
NRT
1 stop18h 41m
Multiple Airlines
Mon 5/119:30 pm
NRT
-
ONT
2 stops32h 10m
Multiple Airlines
Deal found 3/3$756
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Tue 4/287:44 pm
ONT
-
NRT
2 stops32h 16m
Multiple Airlines
Mon 5/1110:30 am
NRT
-
ONT
1 stop22h 08m
Multiple Airlines
Deal found 3/3$759
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Thu 4/309:10 am
ONT
-
NRT
1 stop18h 50m
Multiple Airlines
Thu 5/79:30 pm
NRT
-
ONT
2 stops42h 25m
Multiple Airlines
Deal found 3/3$761
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Wed 4/2911:44 am
ONT
-
NRT
2 stops40h 16m
Multiple Airlines
Mon 5/1110:30 am
NRT
-
ONT
1 stop22h 08m
Multiple Airlines
Deal found 3/3$773
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Sun 4/198:21 am
ONT
-
NRT
1 stop38h 04m
Multiple Airlines
Thu 4/237:10 pm
NRT
-
ONT
1 stop18h 00m
Multiple Airlines
Deal found 3/3$776
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 8/1010:10 am
ONT
-
NRT
1 stop17h 50m
Multiple Airlines
Mon 8/312:35 pm
NRT
-
ONT
2 stops40h 38m
Multiple Airlines
Deal found 3/3$782
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Sun 5/39:19 am
ONT
-
NRT
1 stop18h 41m
Multiple Airlines
Tue 5/129:30 pm
NRT
-
ONT
2 stops32h 10m
Multiple Airlines
Deal found 3/3$783
This oojo deal was found by Cheapflights users on 3/6. 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.
Wed 4/2212:10 am
ONT
-
OKA
1 stop27h 35m
China Airlines
Thu 5/711:55 am
OKA
-
ONT
1 stop22h 05m
China Airlines
Deal found 3/6$834

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 March 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$723
(Kiwi.com)

One-way from

$338
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$915
Provider with most accurate pricing for Ontario-Tokyo (TYO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-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. 16% potential increase in price ($183 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 7, 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

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Mon 8/17

9:13 pm-4:00 pm

1 stop26h 47m

Tokyo Narita

Tue 8/25

6:00 pm-6:13 pm

1 stop16h 13m

$867

OntarioNagoya

ONT - NGO

ONTNGO

Ontario

Thu 4/30

12:10 am-9:05 pm

1 stop28h 55m

Nagoya Chubu Centrair Intl

Fri 5/15

12:20 pm-6:00 pm

1 stop21h 40m

$909

OntarioSendai

ONT - SDJ

ONTSDJ

Ontario

Fri 5/1

11:10 pm-4:00 pm

1 stop24h 50m

Sendai

Thu 5/21

5:20 pm-5:05 pm

1 stop39h 45m

$918

OntarioOkinawa

ONT - OKA

ONTOKA

Ontario

Wed 4/22

12:10 am-7:45 pm

1 stop27h 35m

Okinawa Naha

Fri 5/8

11:55 am-6:00 pm

1 stop22h 05m

$923

OntarioOkinawa

ONT - OKA

ONTOKA

Ontario

Mon 4/20

12:10 am-7:45 pm

1 stop27h 35m

Okinawa Naha

Wed 5/6

8:55 pm-6:00 pm

1 stop37h 05m

$923

OntarioOkinawa

ONT - OKA

ONTOKA

Ontario

Tue 4/21

12:10 am-7:45 pm

1 stop27h 35m

Okinawa Naha

Thu 5/7

11:55 am-6:00 pm

1 stop22h 05m

$923

OntarioOkinawa

ONT - OKA

ONTOKA

Ontario

Sat 4/25

12:10 am-7:45 pm

1 stop27h 35m

Okinawa Naha

Thu 5/7

11:55 am-6:00 pm

1 stop22h 05m

$923

OntarioTokyo

ONT - HND

ONTHND

Ontario

Wed 8/19

12:45 am-10:15 pm

1 stop29h 30m

Tokyo Haneda

Fri 9/4

2:30 pm-6:40 pm

1 stop20h 10m

$929

OntarioTokyo

ONT - HND

ONTHND

Ontario

Tue 4/21

1:27 pm-5:00 am

1 stop23h 33m

Tokyo Haneda

Wed 4/29

10:55 pm-10:45 pm

1 stop15h 50m

$930

OntarioFukuoka

ONT - FUK

ONTFUK

Ontario

Sun 8/30

12:45 am-6:05 pm

1 stop25h 20m

Fukuoka

Fri 9/4

9:00 pm-6:40 pm

1 stop37h 40m

$931

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

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
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, September is the cheapest month in which you can book a flight from Ontario to Japan (average of $592). Flying from Ontario to Japan in June is currently the most expensive (average of $947). 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 March 7, 2026.
See what other customers who have flown with China Airlines, Alaska Airlines, and Delta 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
809 reviews

Overall

8.3

Boarding

8.3

Food

7.8

Comfort

8.0

Crew

8.5

Entertainment

8.0

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
809 reviews
China Airlines
8.3
Very good
809 reviews

Overall

8.3

Boarding

8.3

Food

7.8

Comfort

8.0

Crew

8.5

Entertainment

8.0

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
8.0
Very good
11,993 reviews
China Airlines
8.3
Very good
809 reviews

Overall

8.3

Boarding

8.3

Food

7.8

Comfort

8.0

Crew

8.5

Entertainment

8.0

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
8,271 reviews
China Airlines
8.3
Very good
809 reviews

Overall

8.3

Boarding

8.3

Food

7.8

Comfort

8.0

Crew

8.5

Entertainment

8.0

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
9,404 reviews
China Airlines
8.3
Very good
809 reviews

Overall

8.3

Boarding

8.3

Food

7.8

Comfort

8.0

Crew

8.5

Entertainment

8.0

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
11,398 reviews
China Airlines
8.3
Very good
809 reviews

Overall

8.3

Boarding

8.3

Food

7.8

Comfort

8.0

Crew

8.5

Entertainment

8.0

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 23h 30m. The time it takes to get you to your destination can typically vary by up to 4h 05m. Airlines will cover a distance of 6468 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Ontario to Japan one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $52. Delta flights start at $64 while deals on American Airlines start at $148 one-way.

  • 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, September is the cheapest month in which you can book a flight from Ontario to Japan (average of $592). Flying from Ontario to Japan in June is currently the most expensive (average of $947). 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

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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 March 7, 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$1,165FlexibilityNo cancel feeOn-time69%

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