Japan

$315+ 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 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FUK
Jan 29 — Feb 51
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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 December 30, 2025.

This Alaska Airlines deal was found by Cheapflights users on 12/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amONT - NRT
1 stop17h 00mMultiple Airlines
Wed 1/146:30 pmNRT - ONT
1 stop13h 38mMultiple Airlines
Deal found 12/28$1,178
This Alaska Airlines deal was found by Cheapflights users on 12/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/294:36 pmONT - NRT
1 stop30h 24mMultiple Airlines
Thu 1/156:30 pmNRT - ONT
1 stop22h 26mMultiple Airlines
Deal found 12/29$1,188
This IEagle deal was found by Cheapflights users on 12/28. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:00 amONT - NRT
1 stop17h 00mMultiple Airlines
Fri 1/306:30 pmNRT - ONT
1 stop13h 38mMultiple Airlines
Deal found 12/28$1,197
This oojo deal was found by Cheapflights users on 12/28. 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 12/3110:50 pmONT - NGO
1 stop19h 15mChina Airlines
Sat 1/319:50 amNGO - ONT
1 stop24h 00mChina Airlines
Deal found 12/28$1,206
This Kiwi.com deal was found by Cheapflights users on 12/28. 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 12/292:45 pmONT - HND
1 stop35h 30mMultiple Airlines
Sun 1/117:00 amHND - ONT
2 stops32h 28mMultiple Airlines
Deal found 12/28$1,362
This Kiwi.com deal was found by Cheapflights users on 12/28. 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 12/292:45 pmONT - NRT
1 stop32h 15mMultiple Airlines
Sun 1/116:50 pmNRT - ONT
2 stops44h 38mMultiple Airlines
Deal found 12/28$1,372
This oojo deal was found by Cheapflights users on 12/30. 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 12/319:45 pmONT - NRT
1 stop23h 35mSTARLUX Airlines
Wed 1/73:40 pmNRT - ONT
1 stop17h 10mSTARLUX Airlines
Deal found 12/30$1,453
This China Airlines deal was found by Cheapflights users on 12/28. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3010:50 pmONT - NRT
1 stop26h 40mChina Airlines
Sat 1/179:20 amNRT - ONT
1 stop24h 30mChina Airlines
Deal found 12/28$1,459
This oojo deal was found by Cheapflights users on 12/30. 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 12/3110:50 pmONT - NRT
1 stop21h 40mChina Airlines
Tue 1/139:20 amNRT - ONT
1 stop24h 30mChina Airlines
Deal found 12/30$1,478
This United Airlines deal was found by Cheapflights users on 12/28. 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 12/295:05 amONT - NRT
1 stop17h 35mUnited Airlines
Mon 1/54:45 pmNRT - ONT
1 stop17h 58mUnited Airlines
Deal found 12/28$1,497
This China Airlines deal was found by Cheapflights users on 12/28. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3010:50 pmONT - NRT
1 stop26h 40mChina Airlines
Thu 1/152:35 pmNRT - ONT
1 stop19h 15mChina Airlines
Deal found 12/28$1,499
This United Airlines deal was found by Cheapflights users on 12/28. 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 12/295:05 amONT - NRT
1 stop17h 35mUnited Airlines
Sat 1/105:35 pmNRT - ONT
1 stop36h 12mUnited Airlines
Deal found 12/28$1,507

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 December 30, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$627
(SmartFares)

One-way from

$315
(SmartFares)

Popular in

June

Cheapest in

January

Average price

$986
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. 15% potential increase in price ($145 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Average for round-trip flights in December 2025

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 December 30, 2025.
Use the filters below to find and compare flights from Ontario to Japan that are best for you.

Fly from

Ontario

Fly to

Japan

Route

Depart

Return

Price

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Sun 1/11

6:00 am-4:00 pm

1 stop17h 00m

Tokyo Narita

Wed 1/28

6:30 pm-3:08 pm

1 stop13h 38m

$636

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Mon 2/9

6:00 am-4:00 pm

1 stop17h 00m

Tokyo Narita

Tue 2/17

6:30 pm-11:08 am

1 stop33h 38m

$643

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Tue 1/20

11:53 am-4:00 pm

1 stop35h 07m

Tokyo Narita

Thu 1/29

6:30 pm-3:08 pm

1 stop13h 38m

$643

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Mon 2/2

6:00 am-8:45 pm

2 stops21h 45m

Osaka Kansai Intl

Wed 2/11

11:55 am-10:44 pm

2 stops27h 49m

$703

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Sat 2/28

6:14 am-4:00 pm

1 stop16h 46m

Tokyo Narita

Sat 3/7

6:30 pm-11:32 pm

1 stop22h 02m

$712

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Thu 1/22

6:00 am-4:00 pm

1 stop17h 00m

Tokyo Narita

Mon 2/2

6:30 pm-3:08 pm

1 stop13h 38m

$712

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Thu 2/5

6:00 am-4:00 pm

1 stop17h 00m

Tokyo Narita

Fri 2/6

6:30 pm-3:08 pm

1 stop13h 38m

$722

OntarioTokyo

ONT - HND

ONTHND

Ontario

Tue 2/3

8:13 am-7:30 pm

1 stop18h 17m

Tokyo Haneda

Fri 2/6

9:20 pm-10:28 pm

1 stop18h 08m

$729

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Mon 2/9

6:00 am-3:00 pm

1 stop16h 00m

Tokyo Narita

Thu 2/19

4:45 pm-12:38 pm

1 stop12h 53m

$736

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Tue 1/20

6:00 am-4:40 pm

1 stop17h 40m

Osaka Kansai Intl

Wed 2/4

11:00 pm-10:53 pm

1 stop16h 53m

$739

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/29

Showing 1-10 of 60 results
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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, January is the cheapest month in which you can book a flight from Ontario to Japan (average of $426). Flying from Ontario to Japan in June is currently the most expensive (average of $712). 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 December 30, 2025.
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.

Boarding

8.3

Entertainment

8.0

Overall

8.3

Comfort

8.0

Food

7.8

Crew

8.5

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.

Boarding

8.3

Entertainment

8.0

Overall

8.3

Comfort

8.0

Food

7.8

Crew

8.5

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.

Boarding

8.3

Entertainment

8.0

Overall

8.3

Comfort

8.0

Food

7.8

Crew

8.5

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.

Boarding

8.3

Entertainment

8.0

Overall

8.3

Comfort

8.0

Food

7.8

Crew

8.5

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.

Boarding

8.3

Entertainment

8.0

Overall

8.3

Comfort

8.0

Food

7.8

Crew

8.5

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.

Boarding

8.3

Entertainment

8.0

Overall

8.3

Comfort

8.0

Food

7.8

Crew

8.5

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 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 Delta, United Airlines, and Japan Airlines fly from Ontario to Japan in about 17h 40m. The time it takes to get you to your destination can typically vary by up to 4h 05m. Airlines will cover a distance of 5759 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, January is the cheapest month in which you can book a flight from Ontario to Japan (average of $426). Flying from Ontario to Japan in June is currently the most expensive (average of $712). 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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Alternative routes for Ontario to Japan

See prices for flight routes from nearby airports that may be better suited for you.

Top 5 airlines flying from Ontario to Japan

Discover the top 5 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 December 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$486Average$1,067FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$712Average$980FlexibilityNo cancel feeOn-time71%
DeltaCheapest$743Average$1,251FlexibilityNo cancel feeOn-timeN/A
Hawaiian AirlinesCheapest$892Average$1,437FlexibilityNo cancel feeOn-time85%
China AirlinesCheapest$902Average$1,127FlexibilityNo cancel feeOn-time70%

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