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Ontario

$450+ Cheap flights from Japan to Ontario (ONT)

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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
FUK — ONT
Jun 23 — Jun 301
Tue 6/23
Tue 6/30
1 adult, Economy
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Cheap flight deals from Japan to Ontario

Cheapest flights from Japan to Ontario
Explore the most affordable flight options available from Japan to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 24, 2026.

This United Airlines deal was found by Cheapflights users on 5/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/23:50 pm
HND
-
ONT
1 stop18h 26m
United Airlines
Thu 9/106:00 am
ONT
-
HND
1 stop15h 55m
United Airlines
Deal found 5/24$1,039
This United Airlines deal was found by Cheapflights users on 5/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/225:05 pm
NRT
-
ONT
1 stop18h 56m
United Airlines
Wed 8/269:01 am
ONT
-
NRT
1 stop13h 59m
United Airlines
Deal found 5/24$1,040
This United Airlines deal was found by Cheapflights users on 5/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/203:50 pm
HND
-
ONT
1 stop20h 11m
United Airlines
Mon 8/241:18 pm
ONT
-
HND
2 stops32h 37m
United Airlines
Deal found 5/21$1,040
This United Airlines deal was found by Cheapflights users on 5/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/55:05 pm
NRT
-
ONT
1 stop17h 11m
United Airlines
Thu 10/156:05 am
ONT
-
NRT
1 stop16h 55m
United Airlines
Deal found 5/23$1,041
This United Airlines deal was found by Cheapflights users on 5/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/205:05 pm
NRT
-
ONT
1 stop18h 56m
United Airlines
Mon 8/315:00 am
ONT
-
NRT
1 stop17h 30m
United Airlines
Deal found 5/22$1,042
This United Airlines deal was found by Cheapflights users on 5/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/83:50 pm
HND
-
ONT
1 stop14h 11m
United Airlines
Mon 10/126:05 am
ONT
-
HND
1 stop15h 50m
United Airlines
Deal found 5/23$1,055
This United Airlines deal was found by Cheapflights users on 5/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/255:05 pm
NRT
-
ONT
2 stops44h 50m
United Airlines
Thu 7/96:00 am
ONT
-
NRT
1 stop17h 00m
United Airlines
Deal found 5/24$1,056
This United Airlines deal was found by Cheapflights users on 5/22. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/203:50 pm
HND
-
ONT
1 stop20h 11m
United Airlines
Sat 9/261:49 pm
ONT
-
HND
1 stop32h 06m
United Airlines
Deal found 5/22$1,056
This United Airlines deal was found by Cheapflights users on 5/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/185:05 pm
NRT
-
ONT
1 stop21h 54m
United Airlines
Wed 9/301:18 pm
ONT
-
NRT
2 stops33h 42m
United Airlines
Deal found 5/23$1,057
This United Airlines deal was found by Cheapflights users on 5/21. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/285:05 pm
NRT
-
ONT
1 stop16h 46m
United Airlines
Thu 10/16:05 am
ONT
-
NRT
1 stop16h 55m
United Airlines
Deal found 5/21$1,058
This Gotogate deal was found by Cheapflights users on 5/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/197:05 pm
KIX
-
ONT
1 stop38h 55m
China Airlines
Thu 6/2512:10 am
ONT
-
KIX
1 stop25h 55m
China Airlines
Deal found 5/19$1,060
This Gotogate deal was found by Cheapflights users on 5/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:05 pm
KIX
-
ONT
1 stop39h 35m
China Airlines
Tue 8/2512:45 am
ONT
-
KIX
1 stop25h 20m
China Airlines
Deal found 5/21$1,062

Find flight deals from Japan to Ontario

Keep the following information in mind while searching for Japan to Ontario flight deals. Data was last updated May 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,039
(United Airlines)

One-way from

$450
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$927
Provider with most accurate pricing for Tokyo (TYO)-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Tokyo (TYO)-Los Angeles flights.
Search Deals
From Japan to Ontario
Search Deals
One-way flight from Japan to Ontario
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($160 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Japan to Ontario 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 May 24, 2026.
Use the filters below to find and compare flights from Japan to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

Fri 9/4

3:50 pm-6:11 pm

1 stop18h 21m

Ontario

Wed 9/9

1:56 pm-1:55 pm

1 stop31h 59m

$1,040

TokyoOntario

NRT - ONT

NRTONT

Tokyo Narita

Fri 8/21

5:05 pm-8:01 pm

1 stop18h 56m

Ontario

Tue 8/25

5:00 am-2:30 pm

1 stop17h 30m

$1,041

TokyoOntario

NRT - ONT

NRTONT

Tokyo Narita

Fri 9/4

5:05 pm-12:12 pm

1 stop35h 07m

Ontario

Wed 9/9

9:01 am-3:00 pm

1 stop13h 59m

$1,042

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

Tue 9/22

3:50 pm-8:01 pm

1 stop20h 11m

Ontario

Mon 9/28

1:49 pm-1:55 pm

1 stop32h 06m

$1,056

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Fri 6/19

7:05 pm-6:00 pm

1 stop38h 55m

Ontario

Thu 6/25

12:10 am-6:05 pm

1 stop25h 55m

$1,060

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Thu 11/12

12:45 pm-4:50 pm

1 stop21h 05m

Ontario

Wed 11/25

10:50 pm-11:35 am

1 stop19h 45m

$1,082

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Tue 8/18

2:00 pm-6:40 pm

1 stop20h 40m

Ontario

Mon 8/24

12:45 am-12:00 pm

1 stop19h 15m

$1,082

NagoyaOntario

NGO - ONT

NGOONT

Nagoya Chubu Centrair Intl

Tue 9/15

12:20 pm-6:40 pm

1 stop22h 20m

Ontario

Fri 9/18

12:10 am-11:20 am

1 stop19h 10m

$1,108

TokyoOntario

NRT - ONT

NRTONT

Tokyo Narita

Tue 6/23

9:35 am-6:00 pm

1 stop24h 25m

Ontario

Wed 7/8

12:45 am-7:00 pm

1 stop26h 15m

$1,118

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

Sat 8/22

3:50 pm-8:01 pm

1 stop20h 11m

Ontario

Wed 8/26

1:56 pm-1:55 pm

1 stop31h 59m

$1,118

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/22

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Japan to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Japan 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 Japan to Ontario
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Japan to Ontario. 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 into for flights to Ontario from Japan?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Japan. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • How long is the flight from Japan to Ontario?

    There are many flights that can get you from Japan to Ontario in 18h 21m. Fly via United Airlines, China Airlines, or STARLUX Airlines to get the fastest option. Japan and Ontario are separated by a distance of 5505 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $346. Users have also found prices from $367 and $395 on Hawaiian Airlines and Delta, respectively.

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

    When deciding which route to take from Japan to Ontario consider Tokyo Narita - Ontario, Tokyo Haneda - Ontario or Osaka Kansai Intl - Ontario as they are the most popular.

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

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

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

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

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

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

See more FAQs

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