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$471+ 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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FUK
Aug 7 — Aug 141
Fri 8/7
Fri 8/14
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 July 8, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/4. 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 8/263:13 pm
ONT
-
NRT
1 stop36h 47m
Multiple Airlines
Wed 11/189:25 pm
NRT
-
ONT
1 stop33h 15m
Multiple Airlines
Deal found 7/4$933
This Kiwi.com deal was found by Cheapflights users on 7/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/193:13 pm
ONT
-
NRT
1 stop36h 47m
Multiple Airlines
Wed 8/267:10 pm
NRT
-
ONT
1 stop19h 00m
Multiple Airlines
Deal found 7/5$937
This Booking.com deal was found by Cheapflights users on 7/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:02 am
ONT
-
NRT
1 stop17h 58m
Multiple Airlines
Fri 8/286:00 pm
NRT
-
ONT
1 stop21h 24m
Multiple Airlines
Deal found 7/6$948
This Kiwi.com deal was found by Cheapflights users on 7/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:58 am
ONT
-
NRT
1 stop19h 02m
Multiple Airlines
Tue 8/257:10 pm
NRT
-
ONT
1 stop19h 00m
Multiple Airlines
Deal found 7/7$969
This Kiwi.com deal was found by Cheapflights users on 7/3. 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.
Thu 9/38:48 am
ONT
-
NRT
1 stop14h 37m
Multiple Airlines
Thu 9/109:30 pm
NRT
-
ONT
1 stop14h 47m
Multiple Airlines
Deal found 7/3$992
This SmartFares deal was found by Cheapflights users on 7/7. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:02 am
ONT
-
NRT
1 stop17h 58m
Multiple Airlines
Tue 10/136:00 pm
NRT
-
ONT
1 stop21h 45m
Multiple Airlines
Deal found 7/7$1,003
This SmartFares deal was found by Cheapflights users on 7/6. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/96:02 am
ONT
-
NRT
1 stop17h 58m
Multiple Airlines
Thu 8/206:00 pm
NRT
-
ONT
1 stop17h 03m
Multiple Airlines
Deal found 7/6$1,007
This SmartFares deal was found by Cheapflights users on 7/5. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/196:02 am
ONT
-
NRT
1 stop17h 58m
Multiple Airlines
Thu 7/236:00 pm
NRT
-
ONT
1 stop21h 11m
Multiple Airlines
Deal found 7/5$1,010
This Delta deal was found by Cheapflights users on 7/3. 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.
Mon 8/176:01 pm
ONT
-
HND
1 stop28h 19m
Delta
Tue 9/14:20 pm
HND
-
ONT
1 stop17h 01m
Delta
Deal found 7/3$1,053
This Delta deal was found by Cheapflights users on 7/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:20 am
ONT
-
HND
1 stop16h 00m
Delta
Tue 9/84:20 pm
HND
-
ONT
1 stop34h 54m
Delta
Deal found 7/5$1,055
This Delta deal was found by Cheapflights users on 7/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:20 am
ONT
-
HND
1 stop16h 00m
Delta
Fri 9/254:20 pm
HND
-
ONT
1 stop17h 00m
Delta
Deal found 7/6$1,062
This Kissandfly.com deal was found by Cheapflights users on 7/5. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:01 pm
ONT
-
HND
1 stop28h 19m
KLM
Fri 9/114:20 pm
HND
-
ONT
1 stop22h 20m
KLM
Deal found 7/5$1,063

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 July 8, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$933
(Kiwi.com)

One-way from

$471
(SmartFares)

Popular in

June

Cheapest in

January

Average price

$931
Provider with most accurate pricing for Los Angeles Los Angeles-Tokyo (TYO) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles 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. 13% potential increase in price ($135 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 8, 2026.
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

Cheapest round-trip

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Mon 10/5

6:02 am-4:00 pm

1 stop17h 58m

Tokyo Narita

Thu 10/15

6:00 pm-6:03 pm

1 stop16h 03m

$1,061

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Tue 9/8

6:20 am-8:45 pm

2 stops22h 25m

Osaka Kansai Intl

Thu 9/17

12:35 pm-10:40 pm

2 stops26h 05m

$1,077

OntarioOkinawa

ONT - OKA

ONTOKA

Ontario

Sat 9/26

12:10 am-7:45 pm

1 stop27h 35m

Okinawa Naha

Sat 10/31

11:55 am-5:50 pm

1 stop21h 55m

$1,086

OntarioFukuoka

ONT - FUK

ONTFUK

Ontario

Wed 9/30

12:10 am-6:05 pm

1 stop25h 55m

Fukuoka

Thu 10/22

11:00 am-6:00 pm

1 stop23h 00m

$1,095

OntarioFukuoka

ONT - FUK

ONTFUK

Ontario

Wed 8/19

12:45 am-8:00 pm

1 stop27h 15m

Fukuoka

Sat 8/22

9:00 pm-6:40 pm

1 stop37h 40m

$1,095

OntarioFukuoka

ONT - FUK

ONTFUK

Ontario

Mon 10/26

11:50 pm-10:00 am

1 stop18h 10m

Fukuoka

Mon 11/2

8:35 pm-4:50 pm

1 stop37h 15m

$1,109

OntarioOkinawa

ONT - OKA

ONTOKA

Ontario

Sun 8/16

12:45 am-10:45 am

1 stop18h 00m

Okinawa Naha

Tue 9/1

8:55 pm-6:40 pm

1 stop37h 45m

$1,143

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Mon 8/24

12:45 am-1:15 pm

1 stop20h 30m

Tokyo Narita

Thu 8/27

9:40 am-6:40 pm

1 stop25h 00m

$1,152

OntarioTokyo

ONT - HND

ONTHND

Ontario

Wed 8/26

5:05 pm-2:20 pm

2 stops29h 15m

Tokyo Haneda

Wed 11/18

4:50 pm-11:48 pm

2 stops23h 58m

$1,175

OntarioNagoya

ONT - NGO

ONTNGO

Ontario

Mon 8/24

1:18 pm-6:35 pm

2 stops37h 17m

Nagoya Chubu Centrair Intl

Thu 8/27

7:20 am-9:59 pm

2 stops30h 39m

$1,207

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/4

Showing 1-10 of 60 resultsSorted by cheapest first
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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, November is the cheapest month in which you can book a flight from Ontario to Japan (average of $258). Flying from Ontario to Japan in June is currently the most expensive (average of $1,116). 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 July 8, 2026.
See what other customers who have flown with China Airlines,Alaska Airlines, andDelta 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
833 reviews

Boarding

8.3

Overall

8.3

Comfort

8.0

Crew

8.5

Food

7.8

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.
China Airlines
8.3
Very good
833 reviews
China Airlines
8.3
Very good
833 reviews

Boarding

8.3

Overall

8.3

Comfort

8.0

Crew

8.5

Food

7.8

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.
Alaska Airlines
7.9
Good
12,639 reviews
China Airlines
8.3
Very good
833 reviews

Boarding

8.3

Overall

8.3

Comfort

8.0

Crew

8.5

Food

7.8

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.
Delta
7.8
Good
8,450 reviews
China Airlines
8.3
Very good
833 reviews

Boarding

8.3

Overall

8.3

Comfort

8.0

Crew

8.5

Food

7.8

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.
United Airlines
7.4
Good
9,953 reviews
China Airlines
8.3
Very good
833 reviews

Boarding

8.3

Overall

8.3

Comfort

8.0

Crew

8.5

Food

7.8

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.
American Airlines
7.1
Good
11,788 reviews
China Airlines
8.3
Very good
833 reviews

Boarding

8.3

Overall

8.3

Comfort

8.0

Crew

8.5

Food

7.8

Entertainment

8.0

Reviews

1 / 20
10.0
Excellent

A,Feb 2026

SEA - TPE

China Airlines has improved significantly over the years. This is the first time we fly on their business class after 20+ years. Both hardware and services impressed us. Will definitely fly with again in the future.

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 China Airlines, Delta, and United Airlines fly from Ontario to Japan in about 16h 42m. The time it takes to get you to your destination can typically vary by up to 10h 53m. Airlines will cover a distance of 5759 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. United Airlines flights start at $174 while deals on American Airlines start at $294 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, November is the cheapest month in which you can book a flight from Ontario to Japan (average of $258). Flying from Ontario to Japan in June is currently the most expensive (average of $1,116). 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

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Top 4 airlines flying from Ontario to Japan

Discover the top 4 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 July 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$783Average$990FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$820Average$1,293FlexibilityNo cancel feeOn-time69%
China AirlinesCheapest$998Average$1,399FlexibilityNo cancel feeOn-time70%
DeltaCheapest$1,038Average$1,410FlexibilityNo cancel feeOn-timeN/A

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