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$581+ 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 3/26. Fares are subject to change and may not be available on all flights or dates of travel.
OSA — ONT
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$957
(China Airlines)

One-way from

$581
(Mytrip)

Popular in

July

Cheapest in

October

Average price

$890
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. 14% potential increase in price ($180 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 20, 2025.

This China Airlines deal was found by Cheapflights users on 2/19. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/181:10 pmKIX - ONT
1 stop20h 50mChina Airlines
Sun 4/2012:10 amONT - KIX
1 stop19h 50mChina Airlines
Deal found 2/19$957
This Agoda.com deal was found by Cheapflights users on 2/20. 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 Agoda.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/133:10 pmKIX - ONT
1 stop17h 55mSTARLUX Airlines
Sat 6/2811:10 pmONT - KIX
1 stop22h 50mSTARLUX Airlines
Deal found 2/20$997
This United Airlines deal was found by Cheapflights users on 2/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/256:30 pmKIX - ONT
2 stops35h 12mUnited Airlines
Fri 3/76:00 amONT - KIX
1 stop17h 35mUnited Airlines
Deal found 2/20$1,229
This Hawaiian Airlines deal was found by Cheapflights users on 2/19. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/148:45 pmKIX - ONT
1 stop17h 05mHawaiian Airlines
Mon 4/219:45 amONT - KIX
1 stop37h 55mHawaiian Airlines
Deal found 2/19$1,390
This Trip.com deal was found by Cheapflights users on 2/20. 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.
Sun 6/152:00 pmKIX - ONT
1 stop20h 00mMultiple Airlines
Sun 6/299:50 amONT - KIX
1 stop16h 55mMultiple Airlines
Deal found 2/20$1,583
This United deal was found by Cheapflights users on 2/19. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1812:00 pmITM - ONT
2 stops24h 21mMultiple Airlines
Mon 4/216:00 amONT - ITM
2 stops19h 05mMultiple Airlines
Deal found 2/19$1,669
This United Airlines deal was found by Cheapflights users on 2/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/812:00 pmITM - ONT
2 stops26h 45mUnited Airlines
Sun 6/221:36 pmONT - ITM
2 stops35h 29mUnited Airlines
Deal found 2/20$1,929

Find flights from Osaka to Ontario within your budget

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 February 20, 2025.

Fly from

Osaka

Fly to

Ontario

Route

Depart

Return

Price

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Fri 4/18

1:10 pm-6:00 pm

1 stop20h 50m

Ontario

Sun 4/20

12:10 am-12:00 pm

1 stop19h 50m

$957

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Fri 6/13

3:10 pm-5:05 pm

1 stop17h 55m

Ontario

Sat 6/28

11:10 pm-2:00 pm

1 stop22h 50m

$997

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Mon 4/14

8:45 pm-9:50 pm

1 stop17h 05m

Ontario

Mon 4/21

9:45 am-3:40 pm

1 stop37h 55m

$1,390

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Mon 4/14

4:50 pm-2:50 pm

1 stop14h 00m

Ontario

Mon 4/21

7:05 am-7:30 pm

2 stops20h 25m

$1,550

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Sun 6/15

2:00 pm-6:00 pm

1 stop20h 00m

Ontario

Sun 6/29

9:50 am-6:45 pm

1 stop16h 55m

$1,583

OsakaOntario

ITM - ONT

ITMONT

Osaka Itami

Fri 4/18

12:00 pm-8:21 pm

2 stops24h 21m

Ontario

Mon 4/21

6:00 am-5:05 pm

2 stops19h 05m

$1,669

OsakaOntario

ITM - ONT

ITMONT

Osaka Itami

Sun 6/8

12:00 pm-10:45 pm

2 stops26h 45m

Ontario

Sun 6/22

1:36 pm-5:05 pm

2 stops35h 29m

$1,929

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Wed 3/26

12:45 pm-5:50 pm

1 stop21h 05m

$581

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Thu 4/3

12:35 pm-4:43 pm

2 stops20h 08m

$622

OsakaOntario

KIX - ONT

KIXONT

Osaka Kansai Intl

Thu 4/3

4:50 pm-2:50 pm

1 stop14h 00m

$623

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 19 results
1
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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.

Travel insights for flights from Osaka to Ontario

Get recent, data-driven insights about flights from Osaka to Ontario including ideal travel times, pricing trends, and more.

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 $315). 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 February 20, 2025.
Peruse reviews from past customers who have flown with STARLUX Airlines, Korean Air and Japan Airlines from Osaka to Ontario to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Crew

9.3

Food

9.0

Comfort

9.0

Boarding

9.1

Overall

9.1

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
140 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Crew

9.3

Food

9.0

Comfort

9.0

Boarding

9.1

Overall

9.1

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
1,037 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Crew

9.3

Food

9.0

Comfort

9.0

Boarding

9.1

Overall

9.1

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
1,440 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Crew

9.3

Food

9.0

Comfort

9.0

Boarding

9.1

Overall

9.1

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
727 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Crew

9.3

Food

9.0

Comfort

9.0

Boarding

9.1

Overall

9.1

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.

Delta
8.0
Very good
8,220 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Entertainment

9.1

Crew

9.3

Food

9.0

Comfort

9.0

Boarding

9.1

Overall

9.1

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

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 $581. Korean Air flights start at $622 while deals on United Airlines start at $623 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 $315). 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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