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

To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $465. United Airlines flights start at $473 while deals on Korean Air start at $474 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.

How far in advance should I book a flight from Ontario to Japan?

Users have found that booking a flight from Ontario to Japan at least 42 days early can save you up to 18% on average compared to booking a flight this week. If booking 42 days before your flight isn’t an option for you, users have found flights from Ontario to Japan for as little as $929 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as $984 for flights departing within the next 3 days.

What is the cheapest month to fly from Ontario to Japan?

Flights from Ontario to Japan lean towards being more expensive in June. Prices are generally better when you fly from Ontario to Japan in February, with the cheapest ticket starting at $426.

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.

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.

$840+ Flights from Ontario to Japan

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Cheap flight deals from Ontario to Japan

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$682 (Kiwi.com)
One-way from	$337 (Trip.com)
Popular in	June
Cheapest in	February
Average price	$891

Provider with most accurate pricing for Los Angeles-Tokyo (TYO) flight deals.

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Provider most trusted by Cheapflights users for Los Angeles-Tokyo (TYO) flights.

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From Ontario to Japan

Search Deals

One-way flight from Ontario to Japan

Search Deals

Highest demand for flights based on searches. 14% potential increase in price ($148 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).

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Average for round-trip flights in April 2025

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Find 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 April 17, 2025.

Thu 5/158:24 amONT - NRT

1 stop19h 36mMultiple Airlines

Sat 5/249:30 pmNRT - ONT

1 stop18h 06mMultiple Airlines

Deal found 4/16

$682

Sun 8/1712:45 amONT - OKA

1 stop18h 00mChina Airlines

Mon 8/258:55 pmOKA - ONT

1 stop37h 45mChina Airlines

Deal found 4/16

$874

Mon 9/112:45 amONT - NRT

1 stop24h 10mChina Airlines

Wed 9/38:00 pmNRT - ONT

1 stop38h 40mChina Airlines

Deal found 4/17

$879

Wed 9/312:45 amONT - FUK

1 stop27h 15mChina Airlines

Thu 9/1111:00 amFUK - ONT

1 stop23h 40mChina Airlines

Deal found 4/16

$883

Sun 9/2811:59 pmONT - HND

1 stop23h 56mAmerican Airlines

Sun 10/125:00 pmHND - ONT

2 stops16h 53mAmerican Airlines

Deal found 4/17

$885

Mon 9/812:45 amONT - KIX

1 stop20h 05mChina Airlines

Wed 9/241:10 pmKIX - ONT

1 stop20h 50mChina Airlines

Deal found 4/17

$890

Wed 11/57:00 amONT - NRT

2 stops21h 05mKorean Air

Wed 11/199:15 amNRT - ONT

2 stops21h 03mKorean Air

Deal found 4/16

$895

Wed 11/127:00 amONT - HND

1 stop15h 20mDelta

Tue 11/254:50 pmHND - ONT

1 stop13h 28mDelta

Deal found 4/16

$898

Mon 9/811:59 pmONT - NRT

1 stop23h 01mAmerican Airlines

Mon 9/226:10 pmNRT - ONT

2 stops19h 30mAmerican Airlines

Deal found 4/15

$901

Wed 9/1712:10 amONT - NGO

1 stop28h 55mChina Airlines

Wed 9/249:55 amNGO - ONT

1 stop24h 05mChina Airlines

Deal found 4/16

$902

Mon 9/17:00 amONT - HND

2 stops23h 50mKorean Air

Fri 9/122:00 amHND - ONT

2 stops31h 17mKorean Air

Deal found 4/16

$902

Tue 10/71:35 pmONT - HND

2 stops37h 25mUnited Airlines

Mon 11/39:55 pmHND - ONT

2 stops32h 15mUnited Airlines

Deal found 4/17

$908

Best flights from Ontario to Japan
Discover carefully curated flight deals from Ontario to Japan that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2025.

Thu 5/158:24 amONT - NRT

1 stop19h 36mMultiple Airlines

Sat 5/249:30 pmNRT - ONT

1 stop18h 06mMultiple Airlines

Deal found 4/16

$682

Sun 8/1712:45 amONT - OKA

1 stop18h 00mChina Airlines

Mon 8/258:55 pmOKA - ONT

1 stop37h 45mChina Airlines

Deal found 4/16

$874

Sun 9/2811:59 pmONT - HND

1 stop23h 56mAmerican Airlines

Sun 10/125:00 pmHND - ONT

2 stops16h 53mAmerican Airlines

Deal found 4/17

$885

Thu 9/187:00 amONT - HND

1 stop15h 15mDelta

Wed 10/14:05 pmHND - ONT

1 stop17h 12mDelta

Deal found 4/16

$901

Mon 9/17:00 amONT - HND

2 stops23h 50mKorean Air

Fri 9/122:00 amHND - ONT

2 stops31h 17mKorean Air

Deal found 4/16

$902

Tue 10/79:35 amONT - HND

2 stops41h 25mUnited Airlines

Sun 11/29:55 pmHND - ONT

2 stops41h 40mUnited Airlines

Deal found 4/16

$908

Fri 5/25:45 amONT - HND

1 stop16h 15mKLM

Fri 5/94:05 pmHND - ONT

1 stop14h 10mKLM

Deal found 4/16

$939

Tue 9/98:35 amONT - HND

1 stop16h 35mHawaiian Airlines

Thu 9/259:20 pmHND - ONT

1 stop15h 50mHawaiian Airlines

Deal found 4/17

$941

Wed 9/108:35 amONT - HND

1 stop16h 35mAlaska Airlines

Thu 9/259:20 pmHND - ONT

1 stop15h 50mAlaska Airlines

Deal found 4/16

$947

Sat 9/611:10 pmONT - OKA

1 stop23h 30mSTARLUX Airlines

Mon 9/153:50 pmOKA - ONT

1 stop17h 15mSTARLUX Airlines

Deal found 4/16

$1,054

Mon 9/297:17 pmONT - KIX

2 stops22h 53mEVA Air

Tue 10/141:10 pmKIX - ONT

2 stops37h 29mEVA Air

Deal found 4/17

$1,203

Wed 9/106:00 amONT - ITM

3 stops20h 55mAir Canada

Sun 9/282:05 pmITM - ONT

3 stops22h 28mAir Canada

Deal found 4/17

$1,442

Last-minute flights from Ontario to Japan
Discover last-minute flight deals from Ontario to Japan. Data last updated April 17, 2025 and is based on user searches.

Sun 4/205:45 amONT - HND

1 stop16h 15mDelta

Tue 5/64:05 pmHND - ONT

1 stop13h 50mDelta

Deal found 4/15

$917

Sun 4/205:00 amONT - HND

2 stops22h 00mUnited Airlines

Tue 4/223:50 pmHND - ONT

1 stop15h 00mUnited Airlines

Deal found 4/16

$953

Sun 4/206:00 amONT - FUK

2 stops19h 40mUnited Airlines

Tue 4/2211:45 amFUK - ONT

2 stops19h 05mUnited Airlines

Deal found 4/16

$978

Sun 4/207:05 amONT - OKA

2 stops23h 35mUnited Airlines

Tue 4/2211:10 amOKA - ONT

2 stops19h 40mUnited Airlines

Deal found 4/16

$980

Tue 4/2212:10 amONT - KIX

1 stop19h 50mChina Airlines

Wed 4/302:00 pmKIX - ONT

1 stop20h 00mChina Airlines

Deal found 4/16

$1,017

Tue 4/2212:10 amONT - FUK

1 stop27h 50mChina Airlines

Wed 4/3011:00 amFUK - ONT

1 stop23h 00mChina Airlines

Deal found 4/16

$1,050

Wed 4/236:00 amONT - NRT

1 stop16h 40mUnited Airlines

Wed 4/305:00 pmNRT - ONT

1 stop13h 50mUnited Airlines

Deal found 4/17

$972

Sat 4/268:10 amONT - NRT

1 stop19h 50mMultiple Airlines

Fri 5/29:30 pmNRT - ONT

1 stop30h 45mMultiple Airlines

Deal found 4/16

$690

Sat 4/265:15 pmONT - HND

2 stops28h 45mDelta

Sun 5/44:05 pmHND - ONT

1 stop16h 39mDelta

Deal found 4/16

$946

Sat 4/265:45 amONT - NRT

2 stops41h 40mKorean Air

Sun 5/48:55 pmNRT - ONT

2 stops35h 49mKorean Air

Deal found 4/16

$956

Sat 4/264:35 pmONT - HND

2 stops20h 10mAmerican Airlines

Fri 5/25:00 pmHND - ONT

2 stops17h 20mAmerican Airlines

Deal found 4/16

$968

Sat 4/266:00 amONT - KIX

1 stop16h 50mUnited Airlines

Mon 4/284:50 pmKIX - ONT

1 stop22h 05mUnited Airlines

Deal found 4/16

$980

One-way flights from Ontario to Japan
Search for one-way flight options from Ontario to Japan. Find affordable one-way fares based on user searches. Data last updated April 17, 2025.

Thu 4/248:10 amONT - NRT

1 stop19h 50mMultiple Airlines

Deal found 4/17

$337

Wed 4/235:45 amONT - HND

1 stop16h 15mDelta

Deal found 4/15

$465

Mon 4/214:23 pmONT - KIX

2 stops30h 27mUnited Airlines

Deal found 4/16

$473

Mon 5/51:45 pmONT - NRT

2 stops32h 15mUnited Airlines

Deal found 4/16

$473

Tue 7/156:00 amONT - HND

2 stops21h 00mUnited Airlines

Deal found 4/15

$473

Mon 4/215:45 amONT - FUK

2 stops22h 20mKorean Air

Deal found 4/17

$474

Tue 4/225:45 amONT - NRT

2 stops23h 20mKorean Air

Deal found 4/15

$475

Mon 4/285:45 amONT - HND

2 stops25h 05mKorean Air

Deal found 4/15

$475

Wed 4/237:05 amONT - HND

1 stop14h 50mMultiple Airlines

Deal found 4/16

$477

Sun 4/207:05 amONT - FUK

2 stops18h 35mUnited Airlines

Deal found 4/16

$477

Wed 4/306:00 amONT - ITM

2 stops19h 05mUnited Airlines

Deal found 4/17

$478

Mon 4/286:00 amONT - NGO

2 stops22h 20mUnited Airlines

Deal found 4/16

$479

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Thu 5/15

8:24 am-8:00 pm

1 stop19h 36m

Tokyo Narita

Sat 5/24

9:30 pm-11:36 pm

1 stop18h 06m

$682

OntarioFukuoka

ONT - FUK

ONTFUK

Ontario

Sun 9/28

12:10 am-8:00 pm

1 stop27h 50m

Fukuoka

Mon 10/6

9:00 pm-6:00 pm

1 stop37h 00m

$883

OntarioTokyo

ONT - HND

ONTHND

Ontario

Sun 4/20

5:45 am-2:00 pm

1 stop16h 15m

Tokyo Haneda

Tue 5/6

4:05 pm-1:55 pm

1 stop13h 50m

$917

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Thu 5/1

5:45 am-9:05 pm

2 stops23h 20m

Tokyo Narita

Fri 5/9

9:20 am-6:20 pm

2 stops25h 00m

$929

OntarioTokyo

ONT - HND

ONTHND

Ontario

Fri 5/2

5:45 am-2:00 pm

1 stop16h 15m

Tokyo Haneda

Fri 5/9

4:05 pm-2:15 pm

1 stop14h 10m

$939

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Thu 5/8

6:00 am-9:00 pm

2 stops23h 00m

Osaka Kansai Intl

Sat 5/10

12:35 pm-6:20 pm

2 stops21h 45m

$941

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Wed 7/16

6:00 am-4:00 pm

1 stop18h 00m

Tokyo Narita

Tue 9/30

6:25 pm-11:59 pm

1 stop21h 34m

$948

OntarioTokyo

ONT - HND

ONTHND

Ontario

Sun 4/20

5:00 am-7:00 pm

2 stops22h 00m

Tokyo Haneda

Tue 4/22

3:50 pm-2:50 pm

1 stop15h 00m

$953

OntarioTokyo

ONT - HND

ONTHND

Ontario

Tue 4/29

5:45 am-10:50 pm

2 stops25h 05m

Tokyo Haneda

Wed 5/7

2:00 am-6:20 pm

2 stops32h 20m

$960

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Wed 7/16

1:19 pm-3:25 pm

1 stop34h 06m

Tokyo Narita

Sun 8/24

5:25 pm-10:53 pm

1 stop21h 28m

$961

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 60 results

...

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, February is the cheapest month in which you can book a flight from Ontario to Japan (average of $866). Flying from Ontario to Japan in December is currently the most expensive (average of $1,670). 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 ONT to JP?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Japan as you normally would.

Rainfall in Japan by month

In terms of precipitation, rainfall in Japan ranges from 2.0 - 8.3 inches per month. September is typically the wettest month, when rainfall can reach 8.3 in. January is typically the driest time to visit Japan when rainfall is around 2.0 in.

Temperature in Japan by month

If weather is an important factor for your trip to Japan, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 42.8 F).

Reviews of airlines servicing Japan

Read through reviews of airlines operating flights from Ontario to Japan, such as STARLUX Airlines, EVA Air and Korean Air. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

STARLUX Airlines

9.1

Wonderful

154 reviews

Reviews

1 / 5

10.0

Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

STARLUX Airlines

9.1

Wonderful

154 reviews

STARLUX Airlines

9.1

Wonderful

154 reviews

Reviews

1 / 5

10.0

Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

EVA Air

8.4

Very good

1,177 reviews

STARLUX Airlines

9.1

Wonderful

154 reviews

Reviews

1 / 5

10.0

Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

Korean Air

8.4

Very good

1,064 reviews

STARLUX Airlines

9.1

Wonderful

154 reviews

Reviews

1 / 5

10.0

Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

Japan Airlines

8.3

Very good

1,443 reviews

STARLUX Airlines

9.1

Wonderful

154 reviews

Reviews

1 / 5

10.0

Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

China Airlines

8.2

Very good

729 reviews

STARLUX Airlines

9.1

Wonderful

154 reviews

Reviews

1 / 5

10.0

Excellent

Andrew,Jan 2025

LAX - TPE

Crew were attentive from start to finish. Each meal was amazing. IFE screen was huge and had quite a bit of western movies, however the tv shows were lacking.

Related info for your journey

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.
What are the cheapest airlines to fly from Ontario to Japan one-way?
To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $465. United Airlines flights start at $473 while deals on Korean Air start at $474 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, February is the cheapest month in which you can book a flight from Ontario to Japan (average of $866). Flying from Ontario to Japan in December is currently the most expensive (average of $1,670). 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

Browse thousands of different options on Cheapflights for your next trip

Top 8 airlines flying from Ontario to Japan

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$486	Average$1,110	FlexibilityNo cancel fee	On-time69%
ZIPAIR	Cheapest$591	Average$770	FlexibilityNo cancel fee	On-timeN/A
Japan Airlines	Cheapest$683	Average$1,068	FlexibilityNo cancel fee	On-time79%
ANA	Cheapest$686	Average$1,051	FlexibilityNo cancel fee	On-time80%
American Airlines	Cheapest$712	Average$1,059	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$895	Average$1,251	FlexibilityNo cancel fee	On-timeN/A
Hawaiian Airlines	Cheapest$966	Average$1,430	FlexibilityNo cancel fee	On-time85%
China Airlines	Cheapest$967	Average$1,183	FlexibilityNo cancel fee	On-time70%

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$337+ 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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Japan with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ontario to Japan

Keep the following information in mind while searching for Ontario to Japan flight deals. Data was last updated April 17, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to Japan

Cheapest flights from Ontario to JapanExplore 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 April 17, 2025.

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 April 17, 2025.

Cheapflights Fare Finder

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

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.

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?

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

Find hourly flight availability from Ontario to Japan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 17, 2025.

Rainfall in Japan by month

Plan your trip to Japan by taking into account the average rainfall totals by month.

Temperature in Japan by month

Plan your trip to Japan by taking into account the average temperature totals by month.

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 April 17, 2025.

Read through reviews of airlines operating flights from Ontario to Japan, such as STARLUX Airlines, EVA Air and Korean Air. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

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?

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

What are the most popular routes from Ontario to Japan?

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

How can I find direct flights from Ontario to Japan?

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Japan

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

Top 8 airlines flying from Ontario to Japan

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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 April 17, 2025.