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

Our cheapest airline available from Ontario to Osaka is Japan Airlines. Our recent data shows that you can find tickets from as low as $920 on this airline. Additional options worth looking into are United Airlines and China Airlines, starting at $939 and $996 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 $470. However, be on the lookout for offers from Korean Air and China Airlines, as they are both options that can get you from Ontario to Osaka for a low price.

What is the cheapest day to fly from Ontario to Osaka?

Travelers seeking maximum savings on their Ontario to Osaka flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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

Travelers have found that booking a Monday departure is the best way to save up to 10% on the cost of booking your flights compared to booking on days of the week where this route is of high demand.

How far in advance should I book a flight from Ontario to Osaka?

Travelers have found it’s best to book a flight 39 days in advance to save up to 32% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 39 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Ontario to Osaka 1-2 weeks in advance for as low as $758, or $976 for flights within the next 24 hours.

What is the cheapest month to fly from Ontario to Osaka?

Flights from Ontario to Osaka lean towards being more expensive in December. Prices are generally better when you fly from Ontario to Osaka in February, with the cheapest ticket starting at $578.

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 eDreams the most. eDreams 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.

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 2 airlines. Ontario is conveniently located just 3.1 mi from Ontario’s city center.

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.

$455+ Flights from Ontario to Osaka

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Ontario to Osaka with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Ontario to Osaka

Most accurate provider	FlightHub 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$920 (Trip.com)
One-way from	$470 (United Airlines)
Popular in	December
Cheapest in	February
Average price	$927

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. 2% potential increase in price ($20 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

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 April 24, 2025.

Tue 9/2312:10 amONT - KIX

1 stop19h 50mChina Airlines

Thu 10/91:10 pmKIX - ONT

1 stop20h 50mChina Airlines

Deal found 4/22

$891

Sun 9/287:00 amONT - KIX

2 stops22h 00mKorean Air

Mon 10/136:20 pmKIX - ONT

2 stops38h 57mKorean Air

Deal found 4/22

$907

Wed 9/246:00 amONT - KIX

1 stop16h 50mUnited Airlines

Thu 10/94:50 pmKIX - ONT

1 stop16h 42mUnited Airlines

Deal found 4/21

$935

Sat 4/267:05 amONT - ITM

2 stops18h 00mUnited Airlines

Mon 4/2812:00 pmITM - ONT

2 stops18h 50mUnited Airlines

Deal found 4/22

$988

Sat 8/3011:45 pmONT - KIX

1 stop20h 30mSTARLUX Airlines

Mon 9/81:25 pmKIX - ONT

1 stop19h 40mSTARLUX Airlines

Deal found 4/22

$1,070

Fri 8/86:50 amONT - KIX

2 stops19h 55mAmerican Airlines

Sat 8/235:55 pmKIX - ONT

2 stops19h 40mAmerican Airlines

Deal found 4/23

$1,093

Thu 10/239:50 amONT - KIX

1 stop16h 55mAlaska Airlines

Mon 11/38:45 pmKIX - ONT

1 stop18h 10mAlaska Airlines

Deal found 4/21

$1,101

Tue 6/106:00 amONT - ITM

2 stops21h 45mJapan Airlines

Tue 9/301:25 pmITM - ONT

2 stops20h 58mJapan Airlines

Deal found 4/23

$1,144

Wed 7/167:00 amONT - KIX

2 stops22h 00mMultiple Airlines

Mon 7/283:10 pmKIX - ONT

1 stop18h 30mMultiple Airlines

Deal found 4/21

$1,186

Tue 10/79:50 amONT - KIX

1 stop16h 55mHawaiian Airlines

Tue 10/218:45 pmKIX - ONT

1 stop17h 10mHawaiian Airlines

Deal found 4/22

$1,196

Thu 5/86:00 amONT - KIX

1 stop16h 50mLufthansa

Mon 5/124:50 pmKIX - ONT

1 stop13h 35mLufthansa

Deal found 4/22

$1,210

Sun 9/73:00 pmONT - KIX

2 stops27h 10mEVA Air

Sat 9/201:10 pmKIX - ONT

2 stops26h 49mEVA Air

Deal found 4/22

$1,233

Best flights from Ontario to Osaka
Discover carefully curated flight deals from Ontario to Osaka that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 24, 2025.

Tue 6/36:00 amONT - KIX

2 stops24h 15mJapan Airlines

Wed 6/116:40 amKIX - ONT

2 stops25h 10mJapan Airlines

Deal found 4/23

$920

Mon 4/286:00 amONT - KIX

1 stop16h 50mUnited Airlines

Wed 5/144:50 pmKIX - ONT

1 stop13h 35mUnited Airlines

Deal found 4/23

$939

Sun 5/1112:10 amONT - KIX

1 stop20h 40mChina Airlines

Wed 5/212:00 pmKIX - ONT

1 stop20h 00mChina Airlines

Deal found 4/23

$996

Mon 7/2111:45 pmONT - KIX

1 stop20h 30mSTARLUX Airlines

Fri 7/253:10 pmKIX - ONT

1 stop18h 30mSTARLUX Airlines

Deal found 4/23

$1,313

Tue 5/276:00 amONT - KIX

2 stops43h 05mKorean Air

Mon 6/96:20 pmKIX - ONT

2 stops44h 26mKorean Air

Deal found 4/22

$1,348

Fri 5/912:10 amONT - KIX

1 stop30h 25mMultiple Airlines

Sat 5/173:25 pmKIX - ONT

1 stop18h 35mMultiple Airlines

Deal found 4/22

$1,369

Wed 5/149:45 amONT - KIX

1 stop17h 00mHawaiian Airlines

Wed 5/288:45 pmKIX - ONT

1 stop17h 10mHawaiian Airlines

Deal found 4/23

$1,418

Wed 7/97:00 amONT - KIX

2 stops36h 20mDelta

Tue 7/2212:35 pmKIX - ONT

2 stops38h 18mDelta

Deal found 4/23

$1,505

Tue 7/159:00 amONT - KIX

1 stop17h 45mAlaska Airlines

Fri 7/258:45 pmKIX - ONT

1 stop16h 42mAlaska Airlines

Deal found 4/23

$1,517

Mon 6/166:58 pmONT - KIX

2 stops23h 12mEVA Air

Sun 6/2211:10 amKIX - ONT

2 stops29h 03mEVA Air

Deal found 4/23

$1,781

Wed 8/206:00 amONT - ITM

2 stops19h 05mUnited Airlines

Sat 11/151:00 pmITM - ONT

2 stops18h 41mUnited Airlines

Deal found 4/22

$1,058

Tue 6/106:00 amONT - ITM

2 stops21h 45mJapan Airlines

Tue 9/301:25 pmITM - ONT

2 stops20h 58mJapan Airlines

Deal found 4/23

$1,144

Last-minute flights from Ontario to Osaka
Discover last-minute flight deals from Ontario to Osaka. Data last updated April 24, 2025 and is based on user searches.

Sat 4/267:05 amONT - ITM

2 stops18h 00mUnited Airlines

Mon 4/2812:00 pmITM - ONT

2 stops18h 50mUnited Airlines

Deal found 4/22

$988

Sat 4/2611:46 amONT - KIX

2 stops37h 39mQatar Airways

Sat 5/36:55 pmKIX - ONT

2 stops39h 35mQatar Airways

Deal found 4/22

$2,104

Mon 4/2812:10 amONT - KIX

1 stop20h 40mChina Airlines

Tue 5/61:10 pmKIX - ONT

1 stop20h 50mChina Airlines

Deal found 4/22

$996

Mon 4/2811:46 amONT - KIX

2 stops37h 39mQatar Airways

Sun 5/46:55 pmKIX - ONT

2 stops34h 57mQatar Airways

Deal found 4/21

$2,792

Tue 4/297:05 amONT - KIX

1 stop15h 45mUnited Airlines

Tue 5/64:50 pmKIX - ONT

1 stop19h 44mUnited Airlines

Deal found 4/22

$948

Tue 4/299:45 amONT - KIX

1 stop17h 00mHawaiian Airlines

Tue 5/68:45 pmKIX - ONT

1 stop17h 05mHawaiian Airlines

Deal found 4/22

$1,325

Tue 4/292:35 pmONT - KIX

2 stops27h 45mKLM

Tue 5/612:00 pmKIX - ONT

2 stops50h 29mKLM

Deal found 4/22

$2,954

Thu 5/14:15 pmONT - KIX

2 stops32h 10mMultiple Airlines

Mon 5/126:05 pmKIX - ONT

2 stops18h 48mMultiple Airlines

Deal found 4/22

$5,377

Thu 5/12:44 pmONT - KIX

3 stops39h 31mBritish Airways

Mon 5/1210:25 pmKIX - ONT

2 stops41h 18mBritish Airways

Deal found 4/22

$16,489

Thu 5/86:00 amONT - KIX

1 stop16h 50mLufthansa

Mon 5/124:50 pmKIX - ONT

1 stop13h 35mLufthansa

Deal found 4/22

$1,210

Thu 5/812:10 amONT - KIX

2 stops29h 40mMultiple Airlines

Mon 5/267:35 amKIX - ONT

2 stops50h 25mMultiple Airlines

Deal found 4/22

$1,260

Wed 5/216:00 amONT - ITM

2 stops21h 55mJapan Airlines

Wed 5/2812:30 pmITM - ONT

2 stops19h 20mJapan Airlines

Deal found 4/23

$1,452

One-way flights from Ontario to Osaka
Search for one-way flight options from Ontario to Osaka. Find affordable one-way fares based on user searches. Data last updated April 24, 2025.

Tue 5/136:00 amONT - KIX

1 stop16h 50mUnited Airlines

Deal found 4/22

$470

Wed 9/176:00 amONT - ITM

2 stops19h 05mUnited Airlines

Deal found 4/23

$476

Mon 7/217:00 amONT - KIX

2 stops22h 00mKorean Air

Deal found 4/22

$483

Tue 4/2912:10 amONT - KIX

1 stop20h 40mChina Airlines

Deal found 4/23

$579

Wed 10/159:50 amONT - ITM

2 stops42h 00mMultiple Airlines

Deal found 4/22

$650

Wed 5/216:00 amONT - KIX

2 stops24h 15mJapan Airlines

Deal found 4/21

$674

Tue 5/139:45 amONT - KIX

1 stop17h 00mHawaiian Airlines

Deal found 4/22

$700

Wed 7/1612:45 amONT - KIX

2 stops26h 55mMultiple Airlines

Deal found 4/22

$752

Sun 7/65:45 pmONT - KIX

2 stops35h 15mDelta

Deal found 4/23

$760

Sun 6/229:00 amONT - KIX

1 stop17h 45mAlaska Airlines

Deal found 4/23

$809

Wed 6/1811:10 pmONT - KIX

1 stop21h 05mSTARLUX Airlines

Deal found 4/23

$821

Tue 5/1310:59 pmONT - KIX

2 stops44h 41mEtihad Airways

Deal found 4/22

$902

Cheapflights Fare Finder

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

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Tue 9/23

12:10 am-12:00 pm

1 stop19h 50m

Osaka Kansai Intl

Thu 10/9

1:10 pm-6:00 pm

1 stop20h 50m

$891

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Sun 9/28

7:00 am-9:00 pm

2 stops22h 00m

Osaka Kansai Intl

Mon 10/13

6:20 pm-5:17 pm

2 stops38h 57m

$907

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Wed 9/24

6:00 am-2:50 pm

1 stop16h 50m

Osaka Kansai Intl

Thu 10/9

4:50 pm-5:32 pm

1 stop16h 42m

$935

OntarioOsaka

ONT - ITM

ONTITM

Ontario

Wed 8/20

6:00 am-5:05 pm

2 stops19h 05m

Osaka Itami

Sat 11/15

1:00 pm-2:41 pm

2 stops18h 41m

$1,058

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Sat 8/30

11:45 pm-12:15 pm

1 stop20h 30m

Osaka Kansai Intl

Mon 9/8

1:25 pm-5:05 pm

1 stop19h 40m

$1,070

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Fri 8/8

6:50 am-6:45 pm

2 stops19h 55m

Osaka Kansai Intl

Sat 8/23

5:55 pm-9:35 pm

2 stops19h 40m

$1,093

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Thu 10/9

9:50 am-6:45 pm

1 stop16h 55m

Osaka Kansai Intl

Thu 10/23

8:45 pm-9:55 pm

1 stop17h 10m

$1,101

OntarioOsaka

ONT - ITM

ONTITM

Ontario

Tue 6/10

6:00 am-7:45 pm

2 stops21h 45m

Osaka Itami

Tue 9/30

1:25 pm-6:23 pm

2 stops20h 58m

$1,144

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Wed 7/16

7:00 am-9:00 pm

2 stops22h 00m

Osaka Kansai Intl

Mon 7/28

3:10 pm-5:40 pm

1 stop18h 30m

$1,186

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Tue 10/7

9:50 am-6:45 pm

1 stop16h 55m

Osaka Kansai Intl

Tue 10/21

8:45 pm-9:55 pm

1 stop17h 10m

$1,196

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 34 results

Compare providers for flights from Ontario to Osaka

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Osaka in April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
eDreams	Price Accuracy3 stars	Trust Score*3 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 eDreams the most. eDreams 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, February is the cheapest month in which you can book a flight from Ontario to Osaka (average of $898). Flying from Ontario to Osaka in December is currently the most expensive (average of $1,350). 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?

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

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

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

See what other customers who have flown with STARLUX Airlines, EVA Air and Korean Air 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

157 reviews

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

Reviews

1 / 6

10.0

Excellent

Anonymous,Apr 2025

KIX - TPE

EVA Air

8.4

Very good

1,180 reviews

STARLUX Airlines

9.1

Wonderful

157 reviews

Reviews

1 / 6

10.0

Excellent

Anonymous,Apr 2025

KIX - TPE

Korean Air

8.4

Very good

1,062 reviews

STARLUX Airlines

9.1

Wonderful

157 reviews

Reviews

1 / 6

10.0

Excellent

Anonymous,Apr 2025

KIX - TPE

Japan Airlines

8.3

Very good

1,453 reviews

STARLUX Airlines

9.1

Wonderful

157 reviews

Reviews

1 / 6

10.0

Excellent

Anonymous,Apr 2025

KIX - TPE

China Airlines

8.3

Very good

727 reviews

STARLUX Airlines

9.1

Wonderful

157 reviews

Reviews

1 / 6

10.0

Excellent

Anonymous,Apr 2025

KIX - TPE

Related info for your journey

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 2 airlines. 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 Japan Airlines. Our recent data shows that you can find tickets from as low as $920 on this airline. Additional options worth looking into are United Airlines and China Airlines, starting at $939 and $996 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 $470. However, be on the lookout for offers from Korean Air and China Airlines, 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 $898). Flying from Ontario to Osaka in December is currently the most expensive (average of $1,350). 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

Nara

Nishinomiya

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Ontario to Osaka

Other flights to Osaka

Los Angeles to Kansai Intl flights

Honolulu to Kansai Intl flights

San Francisco to Kansai Intl flights

Osaka Kansai Intl Airport to Okinawa flights

Osaka Kansai Intl Airport to Sapporo Chitose Airport flights

Osaka Kansai Intl Airport to Tokyo Narita Airport flights

Osaka Kansai Intl Airport to Tokyo Haneda Airport flights

Osaka Itami Airport to Tokyo Haneda Airport flights

Osaka Kansai Intl Airport to Seoul Gimpo Intl Airport flights

Kobe to Okinawa flights

Osaka Kansai Intl Airport to Incheon Intl Airport flights

Osaka Kansai Intl Airport to Tokyo Haneda Airport flights

Osaka Kansai Intl Airport to Shanghai Pu Dong Airport flights

Osaka Itami Airport to Tokyo Narita Airport flights

Osaka Kansai Intl Airport to Busan flights

Osaka Kansai Intl Airport to Shanghai Pu Dong Airport flights

Osaka Itami Airport to Sapporo Chitose Airport flights

Osaka Kansai Intl Airport to Okinawa flights

Osaka Kansai Intl Airport to Jeju City flights

Osaka Kansai Intl Airport to Incheon Intl Airport flights

Top 2 airlines flying from Ontario to Osaka

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$826	Average$1,087	FlexibilityNo cancel fee	On-time69%
China Airlines	Cheapest$1,044	Average$1,153	FlexibilityNo cancel fee	On-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$455+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Ontario to Osaka with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Ontario to Osaka

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Ontario to Osaka

Cheapest flights from Ontario to OsakaExplore 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 April 24, 2025.

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 April 24, 2025.

Cheapflights Fare Finder

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

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 April.

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.

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?

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 April 24, 2025.

Rainfall in Osaka by month

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

Temperature in Osaka by month

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

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 April 24, 2025.

See what other customers who have flown with STARLUX Airlines, EVA Air and Korean Air 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.

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?

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

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

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

How can I find direct flights from Ontario to Osaka?

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

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

Traveling to a place near Ontario?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Osaka

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Ontario to Osaka

100% Free

Book with Flexibility

Travel Smart

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 April 24, 2025.