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$311+ 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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FUK
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
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 January 21, 2026.

This SmartFares deal was found by Cheapflights users on 1/18. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/26:00 am
ONT
-
NRT
1 stop17h 00m
Hawaiian Airlines
Wed 2/186:30 pm
NRT
-
ONT
1 stop21h 14m
Hawaiian Airlines
Deal found 1/18$591
This Trip.com deal was found by Cheapflights users on 1/20. 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.
Mon 2/96:00 am
ONT
-
NRT
1 stop17h 00m
Hawaiian Airlines
Tue 2/176:30 pm
NRT
-
ONT
1 stop33h 38m
Hawaiian Airlines
Deal found 1/20$614
This SmartFares deal was found by Cheapflights users on 1/19. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/186:14 am
ONT
-
NRT
1 stop16h 46m
Hawaiian Airlines
Wed 3/46:30 pm
NRT
-
ONT
1 stop13h 38m
Hawaiian Airlines
Deal found 1/19$616
This SmartFares deal was found by Cheapflights users on 1/20. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/186:14 am
ONT
-
NRT
1 stop16h 46m
Multiple Airlines
Wed 3/46:30 pm
NRT
-
ONT
1 stop21h 14m
Multiple Airlines
Deal found 1/20$617
This SmartFares deal was found by Cheapflights users on 1/19. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/186:14 am
ONT
-
NRT
1 stop16h 46m
Hawaiian Airlines
Wed 2/256:30 pm
NRT
-
ONT
1 stop21h 14m
Hawaiian Airlines
Deal found 1/19$620
This Kiwi.com deal was found by Cheapflights users on 1/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/176:14 am
ONT
-
NRT
1 stop16h 46m
Multiple Airlines
Wed 2/256:30 pm
NRT
-
ONT
1 stop33h 38m
Multiple Airlines
Deal found 1/19$626
This SmartFares deal was found by Cheapflights users on 1/19. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:14 am
ONT
-
NRT
1 stop16h 46m
Multiple Airlines
Thu 2/266:30 pm
NRT
-
ONT
1 stop22h 02m
Multiple Airlines
Deal found 1/19$628
This Kiwi.com deal was found by Cheapflights users on 1/20. 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 2/186:14 am
ONT
-
NRT
1 stop16h 46m
Multiple Airlines
Wed 2/256:30 pm
NRT
-
ONT
1 stop13h 38m
Multiple Airlines
Deal found 1/20$634
This IEagle deal was found by Cheapflights users on 1/19. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/176:14 am
ONT
-
NRT
1 stop16h 46m
Multiple Airlines
Thu 2/266:30 pm
NRT
-
ONT
1 stop13h 38m
Multiple Airlines
Deal found 1/19$635
This Alaska Airlines deal was found by Cheapflights users on 1/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/96:00 am
ONT
-
NRT
1 stop17h 00m
Multiple Airlines
Tue 2/246:30 pm
NRT
-
ONT
1 stop21h 14m
Multiple Airlines
Deal found 1/19$636
This Alaska Airlines deal was found by Cheapflights users on 1/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/86:00 am
ONT
-
NRT
1 stop17h 00m
Multiple Airlines
Thu 2/196:30 pm
NRT
-
ONT
1 stop22h 02m
Multiple Airlines
Deal found 1/21$637
This IEagle deal was found by Cheapflights users on 1/19. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1011:53 am
ONT
-
NRT
1 stop35h 07m
Multiple Airlines
Thu 2/196:30 pm
NRT
-
ONT
1 stop22h 02m
Multiple Airlines
Deal found 1/19$642

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 January 21, 2026.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$614
(Trip.com)

One-way from

$311
(SmartFares)

Popular in

June

Cheapest in

January

Average price

$624
Provider with most accurate pricing for Los Angeles-Tokyo (TYO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-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. 15% potential increase in price ($148 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 21, 2026.
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

Wed 2/18

6:14 am-4:00 pm

1 stop16h 46m

Tokyo Narita

Fri 2/27

6:30 pm-3:08 pm

1 stop13h 38m

$687

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

$723

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Fri 1/30

6:00 am-4:00 pm

1 stop17h 00m

Tokyo Narita

Tue 2/3

6:30 pm-3:08 pm

1 stop13h 38m

$731

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Sat 2/28

6:14 am-4:00 pm

1 stop16h 46m

Tokyo Narita

Thu 3/5

6:30 pm-11:32 pm

1 stop22h 02m

$731

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Thu 1/29

6:00 am-4:00 pm

1 stop17h 00m

Tokyo Narita

Wed 2/4

6:30 pm-8:36 pm

1 stop19h 06m

$731

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Sun 2/8

6:00 am-4:40 pm

1 stop17h 40m

Osaka Kansai Intl

Tue 2/24

6:35 pm-5:41 pm

1 stop16h 06m

$733

OntarioTokyo

ONT - HND

ONTHND

Ontario

Sun 2/8

6:00 am-2:50 pm

1 stop15h 50m

Tokyo Haneda

Thu 2/19

4:25 pm-12:38 pm

1 stop13h 13m

$735

OntarioTokyo

ONT - HND

ONTHND

Ontario

Tue 2/17

6:10 am-2:50 pm

1 stop15h 40m

Tokyo Haneda

Wed 2/25

4:25 pm-12:48 pm

1 stop13h 23m

$735

OntarioTokyo

ONT - HND

ONTHND

Ontario

Mon 5/4

7:30 am-2:15 pm

1 stop14h 45m

Tokyo Haneda

Tue 5/19

4:05 pm-5:16 pm

1 stop17h 11m

$756

OntarioTokyo

ONT - HND

ONTHND

Ontario

Sun 5/3

5:55 pm-2:15 pm

1 stop28h 20m

Tokyo Haneda

Tue 5/19

4:05 pm-5:16 pm

1 stop17h 11m

$763

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/19

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 $446). 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 January 21, 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
799 reviews

Food

7.8

Boarding

8.3

Crew

8.5

Overall

8.3

Entertainment

8.0

Comfort

8.0

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
8.3
Very good
799 reviews
China Airlines
8.3
Very good
799 reviews

Food

7.8

Boarding

8.3

Crew

8.5

Overall

8.3

Entertainment

8.0

Comfort

8.0

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.
Alaska Airlines
8.0
Very good
11,769 reviews
China Airlines
8.3
Very good
799 reviews

Food

7.8

Boarding

8.3

Crew

8.5

Overall

8.3

Entertainment

8.0

Comfort

8.0

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.
Delta
7.9
Good
8,086 reviews
China Airlines
8.3
Very good
799 reviews

Food

7.8

Boarding

8.3

Crew

8.5

Overall

8.3

Entertainment

8.0

Comfort

8.0

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.
United Airlines
7.4
Good
9,189 reviews
China Airlines
8.3
Very good
799 reviews

Food

7.8

Boarding

8.3

Crew

8.5

Overall

8.3

Entertainment

8.0

Comfort

8.0

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.
American Airlines
7.2
Good
11,169 reviews
China Airlines
8.3
Very good
799 reviews

Food

7.8

Boarding

8.3

Crew

8.5

Overall

8.3

Entertainment

8.0

Comfort

8.0

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 United Airlines, Korean Air, and Delta fly from Ontario to Japan in about 14h 45m. The time it takes to get you to your destination can typically vary by up to 8h 15m. Airlines will cover a distance of 5505 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. American Airlines flights start at $148 while deals on Southwest 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, January is the cheapest month in which you can book a flight from Ontario to Japan (average of $446). 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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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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$486Average$1,137FlexibilityNo 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$1,210FlexibilityNo cancel feeOn-time70%

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