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Ontario

$342+ 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
FUK — ONT
ago. 23 — ago. 301
sáb. 8/23
sáb. 8/30
1 adult, Economy
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Cheap flight deals from Japan to Ontario

Keep the following information in mind while searching for Japan to Ontario flight deals. Data was last updated agosto 18, 2025.

Round-trip from

$640
(United Airlines)

One-way from

$342
(Trip.com)

Popular in

June

Cheapest in

November

Average price

$983
From Japan to Ontario
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One-way flight from Japan to Ontario
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Highest demand for flights based on searches. 10% potential increase in price ($99 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 agosto 18, 2025.

This United Airlines deal was found by Cheapflights users on 8/17. 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.
lun. 9/153:50 pmHND - ONT
1 stop17h 47mUnited Airlines
sáb. 9/207:00 amONT - HND
3 stops40h 25mUnited Airlines
Deal found 8/17$640
This Trip.com deal was found by Cheapflights users on 8/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/54:45 pmNRT - ONT
1 stop12h 52mUnited Airlines
jue. 11/136:00 amONT - NRT
1 stop16h 00mUnited Airlines
Deal found 8/18$641
This United Airlines deal was found by Cheapflights users on 8/16. 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.
mar. 9/163:50 pmHND - ONT
1 stop20h 43mUnited Airlines
mar. 9/237:00 amONT - HND
3 stops40h 25mUnited Airlines
Deal found 8/16$641
This United Airlines deal was found by Cheapflights users on 8/17. 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.
lun. 9/155:10 pmNRT - ONT
1 stop16h 27mUnited Airlines
jue. 9/186:00 amONT - NRT
1 stop16h 40mUnited Airlines
Deal found 8/17$642
This lol.travel deal was found by Cheapflights users on 8/16. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/155:10 pmNRT - ONT
1 stop19h 23mUnited Airlines
dom. 9/286:27 pmONT - NRT
1 stop28h 28mUnited Airlines
Deal found 8/16$646
This United Airlines deal was found by Cheapflights users on 8/17. 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.
mié. 9/103:50 pmHND - ONT
1 stop17h 47mUnited Airlines
mar. 9/237:00 amONT - HND
3 stops40h 25mUnited Airlines
Deal found 8/17$681
This United Airlines deal was found by Cheapflights users on 8/17. 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.
mar. 9/165:10 pmNRT - ONT
1 stop16h 27mUnited Airlines
lun. 9/226:38 pmONT - NRT
1 stop28h 17mUnited Airlines
Deal found 8/17$683
This Trip.com deal was found by Cheapflights users on 8/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/305:10 pmNRT - ONT
1 stop16h 30mUnited Airlines
sáb. 10/46:00 amONT - NRT
1 stop40h 00mUnited Airlines
Deal found 8/16$684
This Delta deal was found by Cheapflights users on 8/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/154:05 pmHND - ONT
1 stop16h 55mDelta
mar. 9/235:40 pmONT - HND
1 stop28h 35mDelta
Deal found 8/17$690
This United Airlines deal was found by Cheapflights users on 8/18. 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.
lun. 12/224:25 pmHND - ONT
1 stop18h 18mUnited Airlines
lun. 1/51:40 pmONT - HND
2 stops32h 10mUnited Airlines
Deal found 8/18$695
This United Airlines deal was found by Cheapflights users on 8/17. 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.
mié. 9/103:50 pmHND - ONT
2 stops20h 53mUnited Airlines
lun. 9/227:00 amONT - HND
3 stops40h 25mUnited Airlines
Deal found 8/17$702
This United Airlines deal was found by Cheapflights users on 8/17. 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.
mié. 9/105:10 pmNRT - ONT
1 stop16h 27mUnited Airlines
sáb. 9/206:50 pmONT - NRT
1 stop27h 50mUnited Airlines
Deal found 8/17$703

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 agosto 18, 2025.
Use the filters below to find and compare flights from Japan to Ontario that are best for you.

Fly from

Japan

Fly to

Ontario

Route

Depart

Return

Price

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

lun. 12/22

4:25 pm-5:43 pm

1 stop18h 18m

Ontario

mié. 1/14

6:42 pm-2:50 pm

1 stop27h 08m

$640

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

lun. 11/3

4:25 pm-5:34 pm

1 stop18h 09m

Ontario

lun. 11/10

6:38 pm-2:50 pm

1 stop27h 12m

$640

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

mar. 12/23

4:25 pm-10:01 am

1 stop34h 36m

Ontario

vie. 1/9

6:42 pm-2:50 pm

1 stop27h 08m

$640

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

lun. 12/22

4:25 pm-5:43 pm

1 stop18h 18m

Ontario

jue. 1/15

6:00 am-2:50 pm

1 stop15h 50m

$640

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

mar. 9/16

3:50 pm-8:33 pm

1 stop20h 43m

Ontario

sáb. 9/20

7:00 am-3:25 pm

3 stops40h 25m

$640

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

mar. 9/16

3:50 pm-5:37 pm

1 stop17h 47m

Ontario

mar. 9/23

7:00 am-3:25 pm

3 stops40h 25m

$640

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

lun. 11/24

4:25 pm-12:37 pm

1 stop13h 12m

Ontario

lun. 12/1

6:00 am-2:50 pm

1 stop15h 50m

$640

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

lun. 9/15

3:50 pm-8:33 pm

1 stop20h 43m

Ontario

mar. 9/23

7:00 am-3:25 pm

3 stops40h 25m

$640

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

lun. 9/15

3:50 pm-5:37 pm

1 stop17h 47m

Ontario

sáb. 9/20

7:00 am-3:25 pm

3 stops40h 25m

$640

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

lun. 9/15

3:50 pm-8:33 pm

1 stop20h 43m

Ontario

lun. 11/10

1:40 pm-2:50 pm

1 stop32h 10m

$640

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 60 results
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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

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

Currently, August is the cheapest month in which you can book a flight from Japan to Ontario (average of $246). Flying from Japan to Ontario in March is currently the most expensive (average of $328). 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.

What is the cheapest time of day to fly from JP to ONT?

Find hourly flight availability from Japan to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 18, 2025.

When flying from Japan to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated agosto 18, 2025.
Read through reviews of airlines operating flights from Japan to Ontario, such as China Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.3
Very good
764 reviews

Food

7.8

Crew

8.5

Comfort

8.0

Boarding

8.3

Entertainment

8.0

Overall

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
China Airlines
8.3
Very good
764 reviews
China Airlines
8.3
Very good
764 reviews

Food

7.8

Crew

8.5

Comfort

8.0

Boarding

8.3

Entertainment

8.0

Overall

8.3

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.

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 18m. Fly via United Airlines, STARLUX Airlines, or Korean Air 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 $372. Users have also found prices from $445 and $515 on Korean Air and Alaska Airlines, 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.

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

    Currently, August is the cheapest month in which you can book a flight from Japan to Ontario (average of $246). Flying from Japan to Ontario in March is currently the most expensive (average of $328). 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

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Top airline flying from Japan to Ontario

Discover the top airline that operate flights from Japan to Ontario. 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 agosto 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$960Average$983FlexibilityNo cancel feeOn-time70%

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