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Osaka

$397+ Cheap flights from Ontario (ONT) to Osaka (OSA)

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — OSA
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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Cheap flight deals from Ontario to Osaka

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Osaka (OSA). 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 febrero 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$760
(United Airlines)

One-way from

$397
(United Airlines)

Popular in

December

Cheapest in

February

Average price

$707
Provider with most accurate pricing for Ontario-Osaka (OSA) flight deals.
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Provider most trusted by Cheapflights users for Ontario-Osaka (OSA) flights.
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From Ontario to Osaka (OSA)
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One-way flight from Ontario to Osaka (OSA)
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Highest demand for flights based on searches. 2% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($31 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 Ontario to Osaka

Cheapest flights from Ontario to Osaka
Explore the most affordable flight options available from Ontario to Osaka. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 2/266:00 amONT - KIX
1 stop17h 35mUnited Airlines
sáb. 3/86:30 pmKIX - ONT
1 stop16h 34mUnited Airlines
Deal found 2/19$753
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/109:50 amONT - KIX
1 stop16h 55mAlaska Airlines
mié. 9/248:45 pmKIX - ONT
1 stop17h 10mAlaska Airlines
Deal found 2/20$824
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.
lun. 9/89:50 amONT - KIX
1 stop16h 55mHawaiian Airlines
mié. 10/88:45 pmKIX - ONT
1 stop17h 10mHawaiian Airlines
Deal found 2/19$849
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.
mié. 9/36:00 amONT - ITM
2 stops19h 05mMultiple Airlines
mié. 9/1712:00 pmITM - ONT
2 stops26h 53mMultiple Airlines
Deal found 2/19$870
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/216:48 amONT - KIX
2 stops19h 57mAmerican Airlines
sáb. 7/265:55 pmKIX - ONT
2 stops19h 40mAmerican Airlines
Deal found 2/20$890
This United 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/186:00 amONT - KIX
2 stops21h 30mMultiple Airlines
jue. 9/188:25 amKIX - ONT
2 stops30h 28mMultiple Airlines
Deal found 2/20$900
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.
vie. 2/216:00 amONT - ITM
2 stops19h 10mUnited Airlines
vie. 2/281:00 pmITM - ONT
2 stops18h 29mUnited Airlines
Deal found 2/20$915
This oojo deal was found by Cheapflights users on 2/18. 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.
dom. 4/612:10 amONT - KIX
1 stop20h 40mChina Airlines
mié. 12/242:30 pmKIX - ONT
1 stop19h 20mChina Airlines
Deal found 2/18$984
This Korean Air 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/277:00 amONT - KIX
2 stops21h 00mKorean Air
vie. 12/59:15 amKIX - ONT
2 stops21h 08mKorean Air
Deal found 2/20$1,017
This Gotogate 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/2911:45 pmONT - KIX
1 stop20h 30mSTARLUX Airlines
vie. 9/123:10 pmKIX - ONT
1 stop17h 55mSTARLUX Airlines
Deal found 2/19$1,081
This Ovago 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/86:00 amONT - ITM
2 stops21h 50mJapan Airlines
mié. 10/81:30 pmITM - ONT
2 stops17h 42mJapan Airlines
Deal found 2/19$1,097
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/287:00 amONT - KIX
2 stops22h 00mDelta
sáb. 10/186:20 pmKIX - ONT
2 stops39h 02mDelta
Deal found 2/19$1,152

Find flights from Ontario to Osaka within your budget

Customize your flight search to find flights from Ontario to Osaka 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 febrero 20, 2025.

Fly from

Ontario

Fly to

Osaka

Route

Depart

Return

Price

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

mié. 2/26

6:00 am-4:35 pm

1 stop17h 35m

Osaka Kansai Intl

sáb. 3/8

6:30 pm-6:04 pm

1 stop16h 34m

$753

OntarioOsaka

ONT - ITM

ONTITM

Ontario

mié. 4/30

7:05 am-5:05 pm

2 stops18h 00m

Osaka Itami

jue. 9/11

12:00 pm-6:00 pm

2 stops22h 00m

$870

OntarioOsaka

ONT - ITM

ONTITM

Ontario

jue. 4/24

3:55 pm-5:05 pm

2 stops33h 10m

Osaka Itami

jue. 5/1

12:00 pm-12:24 pm

2 stops16h 24m

$888

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

dom. 4/6

12:10 am-12:50 pm

1 stop20h 40m

Osaka Kansai Intl

mié. 12/24

2:30 pm-4:50 pm

1 stop19h 20m

$984

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

dom. 5/4

12:10 am-12:50 pm

1 stop20h 40m

Osaka Kansai Intl

lun. 5/12

1:10 pm-11:59 pm

2 stops26h 49m

$1,091

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

mar. 4/8

5:40 am-9:00 pm

2 stops23h 20m

Osaka Kansai Intl

mié. 4/16

12:35 pm-4:43 pm

2 stops20h 08m

$1,123

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

lun. 5/19

9:50 am-6:45 pm

1 stop16h 55m

Osaka Kansai Intl

mié. 6/4

8:45 pm-9:55 pm

1 stop17h 10m

$1,173

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

lun. 4/7

5:30 pm-9:00 pm

2 stops35h 30m

Osaka Kansai Intl

mar. 4/15

12:35 pm-4:43 pm

2 stops20h 08m

$1,183

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

mar. 5/20

9:50 am-6:45 pm

1 stop16h 55m

Osaka Kansai Intl

mié. 6/4

8:45 pm-9:55 pm

1 stop17h 10m

$1,374

OntarioOsaka

ONT - ITM

ONTITM

Ontario

jue. 5/8

6:00 am-7:35 am

2 stops33h 35m

Osaka Itami

mar. 5/20

1:30 pm-3:50 pm

2 stops18h 20m

$1,482

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

Showing 1-10 of 28 results
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Compare providers for flights from Ontario to Osaka

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Osaka in February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Osaka flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Osaka flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Osaka flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Osaka flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Osaka flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Osaka

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

Travel insights for flights from Ontario to Osaka

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

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

Currently, February is the cheapest month in which you can book a flight from Ontario to Osaka (average of $912). Flying from Ontario to Osaka in December is currently the most expensive (average of $1,366). 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 OSA?

Find hourly flight availability from Ontario to Osaka. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated febrero 20, 2025.

A simple way to save on the total cost of your ticket is to fly from Ontario to Osaka in the morning. If you’re flexible enough to do this you can expect to save up to 26% on your trip compared to booking a flight at noon.

Rainfall in Osaka by month

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

In terms of precipitation, rainfall in Osaka ranges from 1.6 - 7.9 inches per month. June is typically the wettest month, when rainfall can reach 7.9 in. January is typically the driest time to visit Osaka when rainfall is around 1.6 in.

Temperature in Osaka by month

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

If weather is an important factor for your trip to Osaka, 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 84.2 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 Osaka

Get insights into the airlines that provide service to Osaka. 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 Osaka. Reviews last updated febrero 20, 2025.
See what other customers who have flown with STARLUX Airlines, Korean Air and Japan Airlines from Ontario to Osaka have to say. 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
140 reviews

Comfort

9.0

Entertainment

9.1

Food

9.0

Overall

9.1

Crew

9.3

Boarding

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

Comfort

9.0

Entertainment

9.1

Food

9.0

Overall

9.1

Crew

9.3

Boarding

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

Comfort

9.0

Entertainment

9.1

Food

9.0

Overall

9.1

Crew

9.3

Boarding

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

Comfort

9.0

Entertainment

9.1

Food

9.0

Overall

9.1

Crew

9.3

Boarding

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

Comfort

9.0

Entertainment

9.1

Food

9.0

Overall

9.1

Crew

9.3

Boarding

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.

Alaska Airlines
8.0
Very good
9,697 reviews
STARLUX Airlines
9.1
Wonderful
140 reviews

Comfort

9.0

Entertainment

9.1

Food

9.0

Overall

9.1

Crew

9.3

Boarding

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 Ontario to Osaka. 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 Osaka?

    Most people fly from Ontario (ONT) if they book a flight from Ontario to Osaka. On average, Ontario has 0 outbound flights to Osaka per day from 1 airline. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

  • What are the cheapest airlines flying from Ontario to Osaka round-trip?

    Our cheapest airline available from Ontario to Osaka is United Airlines. Our recent data shows that you can find tickets from as low as $760 on this airline. Additional options worth looking into are American Airlines and China Airlines, starting at $890 and $984 round-trip.

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

    The cheapest airline one-way is United Airlines, with whom users have recently found tickets for as low as $397. However, be on the lookout for offers from American Airlines and Korean Air, as they are both options that can get you from Ontario to Osaka for a low price.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Ontario to Osaka (average of $912). Flying from Ontario to Osaka in December is currently the most expensive (average of $1,366). 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

Traveling to a place near Ontario?

Book flights to Ontario if you plan to visit one of these locations
Nara
Nishinomiya

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Top airline flying from Ontario to Osaka

Discover the top airline that operate flights from Ontario to Osaka. 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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$1,032Average$1,153FlexibilityNo cancel feeOn-time70%
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