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$638+ Cheap flights from Osaka (OSA) 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 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
OSA — ONT
Apr 29 — May 61
Tue 4/29
Tue 5/6
1 adult, Economy
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Cheap flight deals from Osaka to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Osaka (OSA) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 24, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$962
(HIS)

One-way from

$638
(China Airlines)

Popular in

July

Cheapest in

May

Average price

$1,032
Provider with most accurate pricing for Osaka (OSA)-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Osaka (OSA)-Los Angeles flights.
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From Osaka (OSA) to Ontario
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One-way flight from Osaka (OSA) to Ontario
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Highest demand for flights based on searches. 18% potential increase in price ($229 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($36 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 Osaka to Ontario

Cheapest flights from Osaka to Ontario
Explore the most affordable flight options available from Osaka to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2025.

This HIS deal was found by Cheapflights users on 4/22. 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.
Mon 6/233:10 pmKIX - ONT
1 stop17h 55mSTARLUX Airlines
Mon 7/711:45 pmONT - KIX
1 stop22h 15mSTARLUX Airlines
Deal found 4/22$962
This Gotogate deal was found by Cheapflights users on 4/23. 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.
Wed 5/142:00 pmKIX - ONT
1 stop20h 00mChina Airlines
Tue 5/201:40 amONT - KIX
1 stop24h 25mChina Airlines
Deal found 4/23$1,028
This Trip.com deal was found by Cheapflights users on 4/22. 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 6/232:00 pmKIX - ONT
1 stop20h 00mMultiple Airlines
Sun 7/66:30 amONT - KIX
2 stops22h 30mMultiple Airlines
Deal found 4/22$1,234
This Hawaiian Airlines deal was found by Cheapflights users on 4/22. 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.
Mon 6/238:45 pmKIX - ONT
1 stop16h 42mHawaiian Airlines
Sun 7/69:00 amONT - KIX
1 stop17h 45mHawaiian Airlines
Deal found 4/22$1,622
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Tue 6/248:25 amKIX - ONT
2 stops25h 14mUnited Airlines
Mon 7/76:39 pmONT - KIX
1 stop28h 11mUnited Airlines
Deal found 4/23$1,701
This Alaska Airlines deal was found by Cheapflights users on 4/23. 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.
Wed 5/148:45 pmKIX - ONT
1 stop17h 05mAlaska Airlines
Wed 5/219:50 amONT - KIX
1 stop16h 55mAlaska Airlines
Deal found 4/23$1,979
This oojo deal was found by Cheapflights users on 4/23. 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 8/67:10 pmKIX - ONT
2 stops43h 20mEtihad Airways
Wed 8/1311:45 pmONT - KIX
2 stops43h 55mEtihad Airways
Deal found 4/23$3,298
This Qatar Airways deal was found by Cheapflights users on 4/22. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/296:55 pmKIX - ONT
2 stops34h 57mQatar Airways
Sat 5/312:44 pmONT - KIX
2 stops34h 41mQatar Airways
Deal found 4/22$13,995

Cheapflights Fare Finder

Customize your flight search to find flights from Osaka 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 April 24, 2025.
Use the filters below to find and compare flights from Osaka to Ontario that are best for you.

Fly from

Osaka

Fly to

Ontario

Route

Depart

Return

Price

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Mon 6/23

3:10 pm-5:05 pm

1 stop17h 55m

Ontario

Mon 7/7

11:45 pm-2:00 pm

1 stop22h 15m

$962

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Wed 5/14

2:00 pm-6:00 pm

1 stop20h 00m

Ontario

Tue 5/20

1:40 am-6:05 pm

1 stop24h 25m

$1,028

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Mon 6/23

2:00 pm-6:00 pm

1 stop20h 00m

Ontario

Sun 7/6

6:30 am-9:00 pm

2 stops22h 30m

$1,234

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Mon 6/23

8:45 pm-9:27 pm

1 stop16h 42m

Ontario

Sun 7/6

9:00 am-6:45 pm

1 stop17h 45m

$1,622

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Tue 6/24

8:25 am-5:39 pm

2 stops25h 14m

Ontario

Mon 7/7

6:38 pm-2:50 pm

2 stops28h 12m

$1,701

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Wed 5/14

8:45 pm-9:50 pm

1 stop17h 05m

Ontario

Wed 5/21

9:50 am-6:45 pm

1 stop16h 55m

$1,979

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Wed 8/6

7:10 pm-10:30 pm

2 stops43h 20m

Ontario

Wed 8/13

11:45 pm-11:40 am

2 stops43h 55m

$3,298

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Thu 5/29

6:55 pm-1:52 pm

2 stops34h 57m

Ontario

Sat 5/31

2:44 pm-5:25 pm

2 stops34h 41m

$13,995

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Fri 5/23

1:10 pm-6:00 pm

1 stop20h 50m

$638

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Sat 9/20

6:30 pm-11:59 pm

2 stops21h 29m

$658

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 20 results
1
2

Best time to book a flight from Osaka to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Osaka 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 Osaka to Ontario

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

Currently, August is the cheapest month in which you can book a flight from Osaka to Ontario (average of $246). Flying from Osaka 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.

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Ontario, 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 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 April 24, 2025.
STARLUX Airlines
9.1
Wonderful
157 reviews

Food

8.9

Crew

9.3

Comfort

9.0

Boarding

9.0

Entertainment

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
STARLUX Airlines
9.1
Wonderful
157 reviews
STARLUX Airlines
9.1
Wonderful
157 reviews

Food

8.9

Crew

9.3

Comfort

9.0

Boarding

9.0

Entertainment

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
EVA Air
8.4
Very good
1,180 reviews
STARLUX Airlines
9.1
Wonderful
157 reviews

Food

8.9

Crew

9.3

Comfort

9.0

Boarding

9.0

Entertainment

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Korean Air
8.4
Very good
1,062 reviews
STARLUX Airlines
9.1
Wonderful
157 reviews

Food

8.9

Crew

9.3

Comfort

9.0

Boarding

9.0

Entertainment

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
China Airlines
8.3
Very good
727 reviews
STARLUX Airlines
9.1
Wonderful
157 reviews

Food

8.9

Crew

9.3

Comfort

9.0

Boarding

9.0

Entertainment

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.
Alaska Airlines
8.0
Very good
9,918 reviews
STARLUX Airlines
9.1
Wonderful
157 reviews

Food

8.9

Crew

9.3

Comfort

9.0

Boarding

9.0

Entertainment

9.0

Overall

9.1

Reviews

1 / 6
10.0
Excellent

Anonymous,Apr 2025

KIX - TPE

Very pleasant experience overall, while the main course of the meal could have been better and the movies could have been more recent and with more variety. They offer blindfolds and earplugs, which are a plus.

Related info for your journey

Find useful and relevant information for your journey from Osaka 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 Osaka?

    Most people fly into Ontario (ONT) if they book a flight to Ontario from Osaka. On average, Ontario has 0 inbound flights from Osaka per day from 0 airlines. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

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

    To fly one-way, consider booking your trip with China Airlines, which is currently one of the cheapest options available, starting at $638. Korean Air flights start at $683 while deals on EVA Air start at $688 one-way.

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

    Yes. In addition to deals on Osaka to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Osaka to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Osaka to Ontario.

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

    Yes. Cheapflights offers flight deals from Osaka 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 Osaka to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Osaka to Ontario (average of $246). Flying from Osaka 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.

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