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Osaka

$452+ 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — OSA
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
1 adult, Economy
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Find cheap flights from Ontario to Osaka with Cheapflights

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Cheap 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 March 22, 2026.

This Bravofly deal was found by Cheapflights users on 3/19. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/212:10 am
ONT
-
KIX
1 stop19h 50m
China Airlines
Sun 5/107:05 pm
KIX
-
ONT
1 stop38h 55m
China Airlines
Deal found 3/19$851
This Vliegwinkel deal was found by Cheapflights users on 3/20. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2612:10 am
ONT
-
KIX
1 stop19h 50m
China Airlines
Wed 5/131:10 pm
KIX
-
ONT
1 stop20h 50m
China Airlines
Deal found 3/20$855
This oojo deal was found by Cheapflights users on 3/17. 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.
Sun 8/2312:45 am
ONT
-
KIX
1 stop25h 20m
China Airlines
Mon 8/311:10 pm
KIX
-
ONT
1 stop21h 30m
China Airlines
Deal found 3/17$857
This Trip.com deal was found by Cheapflights users on 3/22. 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 4/2712:10 am
ONT
-
KIX
1 stop19h 50m
China Airlines
Thu 5/142:00 pm
KIX
-
ONT
1 stop20h 00m
China Airlines
Deal found 3/22$880
This oojo deal was found by Cheapflights users on 3/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:45 am
ONT
-
KIX
1 stop25h 20m
China Airlines
Wed 9/167:05 pm
KIX
-
ONT
1 stop38h 55m
China Airlines
Deal found 3/19$881
This SmartFares deal was found by Cheapflights users on 3/19. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/612:10 am
ONT
-
KIX
1 stop25h 55m
China Airlines
Thu 5/212:00 pm
KIX
-
ONT
1 stop20h 00m
China Airlines
Deal found 3/19$893
This Super.com deal was found by Cheapflights users on 3/21. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/612:10 am
ONT
-
KIX
1 stop25h 55m
China Airlines
Mon 5/182:00 pm
KIX
-
ONT
1 stop20h 00m
China Airlines
Deal found 3/21$909
This FlightHub deal was found by Cheapflights users on 3/18. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2512:10 am
ONT
-
KIX
1 stop19h 50m
China Airlines
Sun 10/41:10 pm
KIX
-
ONT
1 stop20h 50m
China Airlines
Deal found 3/18$918
This FlightHub deal was found by Cheapflights users on 3/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/712:10 am
ONT
-
KIX
1 stop20h 40m
China Airlines
Wed 10/212:00 pm
KIX
-
ONT
1 stop20h 00m
China Airlines
Deal found 3/19$919
This Trip.com deal was found by Cheapflights users on 3/22. 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.
Wed 4/2912:10 am
ONT
-
KIX
1 stop20h 40m
China Airlines
Wed 5/202:00 pm
KIX
-
ONT
1 stop20h 00m
China Airlines
Deal found 3/22$922
This oojo deal was found by Cheapflights users on 3/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2612:10 am
ONT
-
KIX
1 stop25h 55m
China Airlines
Tue 6/21:10 pm
KIX
-
ONT
1 stop20h 50m
China Airlines
Deal found 3/22$925
This oojo deal was found by Cheapflights users on 3/18. 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.
Wed 4/296:00 am
ONT
-
ITM
2 stops21h 50m
Japan Airlines
Mon 5/182:35 pm
ITM
-
ONT
2 stops16h 34m
Japan Airlines
Deal found 3/18$1,122

Find 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 March 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$851
(Bravofly)

One-way from

$452
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$891
Provider with most accurate pricing for Ontario-Osaka (OSA) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Osaka (OSA) flights.
Search Deals
From Ontario to Osaka (OSA)
Search Deals
One-way flight from Ontario to Osaka (OSA)
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($120 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
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 March 22, 2026.
Use the filters below to find and compare flights from Ontario to Osaka that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Sat 9/5

12:45 am-6:05 pm

1 stop25h 20m

Osaka Kansai Intl

Wed 9/9

7:05 pm-6:40 pm

1 stop39h 35m

$940

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Sat 9/5

12:45 am-12:00 pm

1 stop19h 15m

Osaka Kansai Intl

Thu 9/10

2:00 pm-6:40 pm

1 stop20h 40m

$964

OntarioOsaka

ONT - ITM

ONTITM

Ontario

Fri 9/4

8:00 am-5:05 pm

2 stops17h 05m

Osaka Itami

Fri 9/11

12:50 pm-6:11 pm

2 stops21h 21m

$1,139

OntarioOsaka

ONT - ITM

ONTITM

Ontario

Mon 9/7

6:00 am-7:50 pm

2 stops21h 50m

Osaka Itami

Thu 9/10

2:35 pm-10:39 pm

2 stops24h 04m

$1,190

OntarioOsaka

ONT - ITM

ONTITM

Ontario

Sun 9/6

6:00 am-7:50 pm

2 stops21h 50m

Osaka Itami

Thu 9/10

2:35 pm-10:39 pm

2 stops24h 04m

$1,190

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Tue 5/19

12:10 am-6:05 pm

1 stop25h 55m

Osaka Kansai Intl

Wed 5/27

2:00 pm-6:00 pm

1 stop20h 00m

$1,244

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Tue 4/21

12:10 am-12:00 pm

1 stop19h 50m

Osaka Kansai Intl

Sat 5/2

2:00 pm-6:00 pm

1 stop20h 00m

$1,244

OntarioOsaka

ONT - ITM

ONTITM

Ontario

Sat 4/25

3:26 pm-7:50 pm

2 stops36h 24m

Osaka Itami

Thu 5/7

8:30 am-7:05 pm

2 stops26h 35m

$1,262

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Wed 7/8

6:00 am-2:50 pm

1 stop16h 50m

Osaka Kansai Intl

Sun 7/19

4:55 pm-10:37 pm

1 stop21h 42m

$1,296

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Wed 8/19

8:00 am-7:50 pm

2 stops19h 50m

Osaka Kansai Intl

Fri 8/28

4:55 pm-6:11 pm

1 stop17h 16m

$1,330

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/19

Showing 1-10 of 45 resultsSorted by cheapest first
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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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*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.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Osaka

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

Currently, January is the cheapest month in which you can book a flight from Ontario to Osaka (average of $419). Flying from Ontario to Osaka in July is currently the most expensive (average of $783). 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 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 March 22, 2026.
See what other customers who have flown with China Airlines from Ontario to Osaka 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
816 reviews

Overall

8.3

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Food

7.8

Crew

8.5

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
816 reviews
China Airlines
8.3
Very good
816 reviews

Overall

8.3

Entertainment

8.0

Boarding

8.3

Comfort

8.0

Food

7.8

Crew

8.5

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 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.

  • How long is the flight from Ontario to Osaka?

    A quick flight from Ontario to Osaka can take about 19h 50m. China Airlines provides one of the quickest options available for as low as $1,130. There are 5759 mi between Ontario and Osaka. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Ontario to Osaka round-trip?

    Our cheapest airline available from Ontario to Osaka is China Airlines. Our recent data shows that you can find tickets from as low as $998 on this airline.

  • 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, January is the cheapest month in which you can book a flight from Ontario to Osaka (average of $419). Flying from Ontario to Osaka in July is currently the most expensive (average of $783). 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 Osaka?

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

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Alternative routes for Ontario to Osaka

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Kansai Intl flights
San Francisco to Kansai Intl flights
Los Angeles to Osaka Itami flights
San Diego to Kansai Intl flights
San Jose to Kansai Intl flights

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 March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$998Average$1,399FlexibilityNo cancel feeOn-time70%

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