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Ontario

$343+ 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
FUK — ONT
Jul 5 — Jul 121
Sat 7/5
Sat 7/12
1 adult, Economy
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Cheap flight deals from Japan to Ontario

Keep the following information in mind while searching for Japan to Ontario flight deals. Data was last updated June 30, 2025.

Round-trip from

$811
(Delta)

One-way from

$343
(Trip.com)

Popular in

August

Cheapest in

November

Average price

$925
From Japan to Ontario
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One-way flight from Japan to Ontario
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Highest demand for flights based on searches. 11% potential increase in price ($108 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 June 2025
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Find 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 June 30, 2025.

This Delta deal was found by Cheapflights users on 6/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/54:50 pmHND - ONT
1 stop17h 27mDelta
Tue 11/116:43 amONT - HND
1 stop14h 22mDelta
Deal found 6/29$811
This Delta deal was found by Cheapflights users on 6/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/42:00 pmNRT - ONT
2 stops20h 17mDelta
Wed 1/216:45 amONT - NRT
2 stops21h 20mDelta
Deal found 6/28$826
This Hawaiian Airlines deal was found by Cheapflights users on 6/28. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/266:25 pmNRT - ONT
1 stop32h 19mHawaiian Airlines
Tue 9/306:00 amONT - NRT
1 stop18h 00mHawaiian Airlines
Deal found 6/28$870
This Alaska Airlines deal was found by Cheapflights users on 6/28. 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 12/96:25 pmNRT - ONT
1 stop16h 52mAlaska Airlines
Mon 2/96:00 amONT - NRT
1 stop17h 00mAlaska Airlines
Deal found 6/28$879
This Korean Air deal was found by Cheapflights users on 6/28. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/99:15 amNRT - ONT
2 stops25h 02mKorean Air
Mon 2/96:45 amONT - NRT
2 stops19h 45mKorean Air
Deal found 6/28$895
This Delta deal was found by Cheapflights users on 6/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/156:10 pmKIX - ONT
2 stops56h 59mDelta
Sun 9/211:15 pmONT - KIX
2 stops39h 45mDelta
Deal found 6/28$898
This United Airlines deal was found by Cheapflights users on 6/28. 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.
Wed 9/243:50 pmHND - ONT
2 stops44h 34mUnited Airlines
Sun 9/289:36 amONT - HND
1 stop36h 19mUnited Airlines
Deal found 6/28$917
This United Airlines deal was found by Cheapflights users on 6/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/285:25 pmNRT - ONT
1 stop34h 48mUnited Airlines
Mon 9/16:38 pmONT - NRT
2 stops28h 02mUnited Airlines
Deal found 6/29$918
This HIS deal was found by Cheapflights users on 6/30. 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 HIS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/243:10 pmKIX - ONT
1 stop17h 55mSTARLUX Airlines
Wed 10/811:10 pmONT - KIX
1 stop21h 05mSTARLUX Airlines
Deal found 6/30$919
This United Airlines deal was found by Cheapflights users on 6/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/244:50 pmKIX - ONT
2 stops19h 53mUnited Airlines
Sun 9/286:36 pmONT - KIX
1 stop28h 14mUnited Airlines
Deal found 6/29$922
This Gotogate deal was found by Cheapflights users on 6/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/142:30 pmNRT - ONT
1 stop20h 10mChina Airlines
Sat 9/2012:10 amONT - NRT
1 stop21h 05mChina Airlines
Deal found 6/29$933
This Korean Air deal was found by Cheapflights users on 6/28. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/249:05 amKIX - ONT
2 stops23h 55mKorean Air
Sun 9/286:00 amONT - KIX
2 stops42h 55mKorean Air
Deal found 6/28$967

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 June 30, 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

Wed 11/5

4:50 pm-5:17 pm

1 stop17h 27m

Ontario

Tue 11/11

6:43 am-2:05 pm

1 stop14h 22m

$811

TokyoOntario

NRT - ONT

NRTONT

Tokyo Narita

Tue 11/4

2:00 pm-5:17 pm

2 stops20h 17m

Ontario

Thu 1/22

6:45 am-9:05 pm

2 stops21h 20m

$826

TokyoOntario

NRT - ONT

NRTONT

Tokyo Narita

Fri 9/26

6:25 pm-10:44 am

1 stop32h 19m

Ontario

Tue 9/30

6:00 am-4:00 pm

1 stop18h 00m

$870

TokyoOntario

NRT - ONT

NRTONT

Tokyo Narita

Tue 12/9

6:25 pm-6:17 pm

1 stop16h 52m

Ontario

Tue 2/10

6:00 am-4:00 pm

1 stop17h 00m

$879

TokyoOntario

NRT - ONT

NRTONT

Tokyo Narita

Tue 12/9

9:15 am-5:17 pm

2 stops25h 02m

Ontario

Mon 2/9

6:45 am-7:30 pm

2 stops19h 45m

$895

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Mon 9/15

6:10 pm-11:09 am

2 stops56h 59m

Ontario

Sun 9/21

1:15 pm-9:00 pm

2 stops39h 45m

$898

TokyoOntario

HND - ONT

HNDONT

Tokyo Haneda

Wed 9/24

3:50 pm-8:24 pm

2 stops44h 34m

Ontario

Sun 9/28

9:36 am-1:55 pm

1 stop36h 19m

$917

TokyoOntario

NRT - ONT

NRTONT

Tokyo Narita

Thu 8/28

5:25 pm-12:13 pm

1 stop34h 48m

Ontario

Mon 9/1

6:38 pm-2:40 pm

2 stops28h 02m

$918

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Wed 9/24

3:10 pm-5:05 pm

1 stop17h 55m

Ontario

Wed 10/8

11:10 pm-12:15 pm

1 stop21h 05m

$919

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Wed 9/24

4:50 pm-8:43 pm

2 stops19h 53m

Ontario

Sun 9/28

6:36 pm-2:50 pm

1 stop28h 14m

$922

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 55 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, August is the cheapest month in which you can book a flight from Japan to Ontario (average of $246). Flying from Japan to Ontario in March is currently the most expensive (average of $328). 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 June 30, 2025.

When flying from Japan to Ontario, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 June 30, 2025.
Read through reviews of airlines operating flights from Japan to Ontario, such as STARLUX Airlines, EVA Air, and Korean Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.0
Wonderful
187 reviews

Comfort

9.0

Boarding

9.0

Food

8.8

Crew

9.3

Entertainment

9.0

Overall

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
STARLUX Airlines
9.0
Wonderful
187 reviews
STARLUX Airlines
9.0
Wonderful
187 reviews

Comfort

9.0

Boarding

9.0

Food

8.8

Crew

9.3

Entertainment

9.0

Overall

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
EVA Air
8.4
Very good
1,210 reviews
STARLUX Airlines
9.0
Wonderful
187 reviews

Comfort

9.0

Boarding

9.0

Food

8.8

Crew

9.3

Entertainment

9.0

Overall

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Korean Air
8.4
Very good
1,101 reviews
STARLUX Airlines
9.0
Wonderful
187 reviews

Comfort

9.0

Boarding

9.0

Food

8.8

Crew

9.3

Entertainment

9.0

Overall

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
Japan Airlines
8.3
Very good
1,504 reviews
STARLUX Airlines
9.0
Wonderful
187 reviews

Comfort

9.0

Boarding

9.0

Food

8.8

Crew

9.3

Entertainment

9.0

Overall

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.
China Airlines
8.3
Very good
745 reviews
STARLUX Airlines
9.0
Wonderful
187 reviews

Comfort

9.0

Boarding

9.0

Food

8.8

Crew

9.3

Entertainment

9.0

Overall

9.0

Reviews

1 / 7
10.0
Excellent

ltulagan,Jun 2025

TPE - SEA

The whole trip was very pleasant from the crew, the food, the amenities during the flight.

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.

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

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $432. Users have also found prices from $458 and $469 on Delta and Korean Air, 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, August is the cheapest month in which you can book a flight from Japan to Ontario (average of $246). Flying from Japan to Ontario in March is currently the most expensive (average of $328). 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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See prices for flight routes from nearby airports that may be better suited for you.
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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 June 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$963Average$991FlexibilityNo cancel feeOn-time70%

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