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Ontario

$323+ 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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
FUK — ONT
jan 7 — jan 141
ons 1/7
ons 1/14
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 december 8, 2025.

This United Airlines deal was found by Cheapflights users on 12/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tis 12/234:25 pmHND - ONT
1 stop34h 36mUnited Airlines
mån 1/510:42 amONT - HND
1 stop35h 08mUnited Airlines
Deal found 12/6$595
This United Airlines deal was found by Cheapflights users on 12/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ons 12/174:25 pmHND - ONT
1 stop23h 24mUnited Airlines
ons 1/71:53 pmONT - HND
1 stop31h 57mUnited Airlines
Deal found 12/6$596
This United Airlines deal was found by Cheapflights users on 12/8. 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.
fre 12/124:45 pmNRT - ONT
1 stop12h 33mUnited Airlines
tors 1/18:11 amONT - NRT
1 stop13h 49mUnited Airlines
Deal found 12/8$597
This United Airlines deal was found by Cheapflights users on 12/8. 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.
mån 12/154:25 pmHND - ONT
1 stop12h 52mUnited Airlines
lör 1/36:00 amONT - HND
1 stop15h 50mUnited Airlines
Deal found 12/8$629
This United Airlines deal was found by Cheapflights users on 12/8. 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.
fre 12/124:45 pmNRT - ONT
1 stop23h 04mUnited Airlines
lör 12/271:40 pmONT - NRT
1 stop33h 00mUnited Airlines
Deal found 12/8$631
This United Airlines deal was found by Cheapflights users on 12/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sön 12/215:35 pmNRT - ONT
1 stop20h 32mUnited Airlines
tors 2/56:00 amONT - NRT
1 stop16h 00mUnited Airlines
Deal found 12/6$632
This United Airlines deal was found by Cheapflights users on 12/8. 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.
tis 12/94:25 pmHND - ONT
1 stop12h 52mUnited Airlines
lör 12/276:00 amONT - HND
1 stop15h 50mUnited Airlines
Deal found 12/8$651
This United Airlines deal was found by Cheapflights users on 12/8. 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.
lör 12/134:45 pmNRT - ONT
1 stop12h 33mUnited Airlines
tors 1/18:11 amONT - NRT
1 stop13h 49mUnited Airlines
Deal found 12/8$653
This United Airlines deal was found by Cheapflights users on 12/7. 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.
lör 12/204:25 pmHND - ONT
1 stop34h 36mUnited Airlines
lör 12/276:39 pmONT - HND
1 stop27h 11mUnited Airlines
Deal found 12/7$663
This United Airlines deal was found by Cheapflights users on 12/7. 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.
lör 12/204:45 pmNRT - ONT
1 stop34h 16mUnited Airlines
lör 12/276:00 amONT - NRT
1 stop16h 00mUnited Airlines
Deal found 12/7$664
This United Airlines deal was found by Cheapflights users on 12/5. 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.
ons 12/244:45 pmNRT - ONT
1 stop18h 25mUnited Airlines
lör 12/276:39 pmONT - NRT
1 stop27h 21mUnited Airlines
Deal found 12/5$665
This United Airlines deal was found by Cheapflights users on 12/7. 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.
ons 12/244:25 pmHND - ONT
1 stop18h 45mUnited Airlines
ons 12/316:00 amONT - HND
1 stop15h 50mUnited Airlines
Deal found 12/7$676

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 december 8, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$580
(United Airlines)

One-way from

$323
(Trip.com)

Popular in

June

Cheapest in

February

Average price

$744
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. 12% potential increase in price ($117 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 december 8, 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

ons 1/21

4:25 pm-10:53 pm

1 stop23h 28m

Ontario

tis 1/27

1:53 pm-2:50 pm

1 stop31h 57m

$580

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

tors 2/5

4:25 pm-10:53 pm

1 stop23h 28m

Ontario

mån 2/16

6:10 am-2:50 pm

1 stop15h 40m

$580

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

tors 1/22

4:25 pm-5:43 pm

1 stop18h 18m

Ontario

mån 2/9

6:00 am-2:50 pm

1 stop15h 50m

$580

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

tors 1/22

4:25 pm-5:43 pm

1 stop18h 18m

Ontario

ons 2/4

1:53 pm-2:50 pm

1 stop31h 57m

$580

TokyoOntario

NRT - ONT

NRTONT

Tokyo Narita

fre 2/6

4:45 pm-5:43 pm

1 stop17h 58m

Ontario

ons 2/18

8:00 am-3:30 pm

1 stop38h 30m

$581

TokyoOntario

NRT - ONT

NRTONT

Tokyo Narita

tors 1/22

5:45 pm-11:18 am

2 stops34h 33m

Ontario

mån 2/9

6:00 am-3:00 pm

1 stop16h 00m

$581

TokyoOntario

NRT - ONT

NRTONT

Tokyo Narita

tors 1/22

5:45 pm-11:18 am

2 stops34h 33m

Ontario

ons 2/4

6:00 am-3:00 pm

1 stop16h 00m

$581

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

tis 12/23

4:25 pm-5:43 pm

1 stop18h 18m

Ontario

tors 1/22

6:00 am-2:50 pm

1 stop15h 50m

$595

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

tis 12/23

4:25 pm-10:01 am

1 stop34h 36m

Ontario

mån 1/5

10:42 am-2:50 pm

1 stop35h 08m

$595

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

mån 12/22

4:25 pm-5:43 pm

1 stop18h 18m

Ontario

ons 1/21

6:00 am-2:50 pm

1 stop15h 50m

$595

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/6

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, December is the cheapest month in which you can book a flight from Japan to Ontario (average of $253). Flying from Japan to Ontario in March is currently the most expensive (average of $514). 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 december 8, 2025.

It’s typically best to fly out from Japan to Ontario in the morning. Doing so could potentially save you 34% on the flight price compared to flying in the evening, which is usually more expensive.

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 december 8, 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
8.2
Very good
788 reviews

Crew

8.5

Entertainment

8.0

Boarding

8.3

Food

7.8

Comfort

8.0

Overall

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

TPE - SFO

China Airlines has horrible customer services. The flight I was taking had many empty seats, but I got rejected many services with the excuses that the flight is fully booked. 1. When I was checking in at the front dest to request the seat together with my husband, I was told that the flight was fully booked. We need to pay almost extra $200 per person to sit together. 2. When I tried to use the VIP lounge with my mileage points, I was rejected. The reason was that the flight was fully booked.
China Airlines
8.2
Very good
788 reviews
China Airlines
8.2
Very good
788 reviews

Crew

8.5

Entertainment

8.0

Boarding

8.3

Food

7.8

Comfort

8.0

Overall

8.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

TPE - SFO

China Airlines has horrible customer services. The flight I was taking had many empty seats, but I got rejected many services with the excuses that the flight is fully booked. 1. When I was checking in at the front dest to request the seat together with my husband, I was told that the flight was fully booked. We need to pay almost extra $200 per person to sit together. 2. When I tried to use the VIP lounge with my mileage points, I was rejected. The reason was that the flight was fully booked.

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 19h 40m. Fly via United Airlines, STARLUX Airlines, or China Airlines to get the fastest option. Japan and Ontario are separated by a distance of 5759 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 Hawaiian Airlines. According to our data, you can fly for as low as $367. Users have also found prices from $395 and $516 on Delta and China 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, December is the cheapest month in which you can book a flight from Japan to Ontario (average of $253). Flying from Japan to Ontario in March is currently the most expensive (average of $514). 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 december 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$960Average$983FlexibilityNo cancel feeOn-time70%

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