Which layover airport has the shortest travel time from Ontario to Osaka?

Flights connecting via San Francisco (SFO) have the shortest average one-way travel time: 16h 18m.

What airlines fly to Osaka?

Japan Airlines, ANA and Asiana Airlines are the top three most popular airlines that fly to Osaka from Ontario according to our data. Japan Airlines is the first choice among our users, with 63% of people opting to fly with this airline when traveling to Osaka. Keep in mind that there are 13 different airlines that fly to Osaka on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Ontario to Osaka?

Alaska Airlines, Korean Air, and United Airlines are the most popular carriers operating from Ontario to Osaka

Which airport is the most popular layover for flights between Ontario and Osaka?

Taipei City (TPE) was the most common stop: 86% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest connection time from Ontario to Osaka?

San Francisco (SFO) has the shortest average layover time for this route: 2h 36m.

Which layover airport offers the lowest fares from Ontario to Osaka?

Flights via Honolulu (HNL) offer the lowest average round-trip price of $1,337.

When did momondo last update prices for flights from Ontario Airport to Osaka?

Prices for flights from Ontario Airport to Osaka are updated daily.

How many operators does momondo search for flights from Ontario Airport to Osaka?

As of October 2025, there are 2 operators available to choose from for flights from Ontario Airport to Osaka.

How old do you have to be to fly from Ontario Airport to Osaka?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Osaka.

What documentation or ID do you need to fly to Osaka?

The necessary travel and health documents for your Osaka trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$393 Cheap Flights from Ontario to Osaka in 2025/26

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Cheap round-trip flights

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6:40 am - 8:45 pmONT-KIX

21h 05m2 stops

11:55 am - 10:47 pmKIX-ONT

27h 52m2 stops

$755Delta

Find Deal

Wed, Dec 3 - Fri, Dec 12

6:45 am - 8:45 pmONT-KIX

21h 00m2 stops

9:00 am - 10:47 pmKIX-ONT

30h 47m2 stops

$769Delta

Find Deal

Mon, Dec 1 - Wed, Dec 10

6:00 am - 4:40 pmONT-KIX

17h 40m1 stop

8:20 am - 10:53 pmKIX-ONT

31h 33m2 stops

$793United Airlines

Find Deal

Tue, Jan 27 - Tue, Feb 10

6:00 am - 4:40 pmONT-KIX

17h 40m1 stop

8:20 am - 5:51 pmKIX-ONT

26h 31m2 stops

$807United Airlines

Find Deal

Tue, Dec 9 - Thu, Dec 25

6:00 am - 6:10 pmONT-ITM

19h 10m2 stops

1:00 pm - 5:51 pmITM-ONT

21h 51m2 stops

$811United Airlines

Find Deal

Tue, Dec 9 - Thu, Dec 25

6:00 am - 7:25 pmONT-KIX

20h 25m2 stops

8:20 am - 5:51 pmKIX-ONT

26h 31m2 stops

$814United Airlines

Find Deal

Tue, Dec 9 - Thu, Dec 25

7:30 pm - 6:50 pmONT-KIX

30h 20m2 stops

5:50 pm - 10:29 pmKIX-ONT

21h 39m2 stops

$845American Airlines

Find Deal

Sun, Nov 9 - Fri, Nov 14

7:35 am - 9:00 pmONT-KIX

21h 25m2 stops

9:00 am - 5:10 pmKIX-ONT

25h 10m2 stops

$846Korean Air

Find Deal

Tue, Oct 21 - Tue, Nov 4

7:50 am - 6:45 pmONT-KIX

17h 55m1 stop

8:45 pm - 8:23 pmKIX-ONT

16h 38m1 stop

$855Alaska Airlines

Find Deal

Fri, Nov 28 - Mon, Dec 8

9:50 am - 6:45 pmONT-KIX

39h 55m1 stop

8:45 pm - 9:55 pmKIX-ONT

18h 10m1 stop

$891Alaska Airlines

Find Deal

Mon, Feb 16 - Fri, Feb 27

Delta flights from Ontario to Osaka

Our best Delta deals on Ontario to Osaka flight tickets

Delta

Dec 3

ONT6:40 amOntario

21h 05m

2 stops

KIX8:45 pmOsaka Kansai Intl

Dec 12

KIX11:55 amOsaka Kansai Intl

27h 52m

2 stops

ONT10:47 pmOntario

$755

Find similar

Delta

Dec 1

ONT6:45 amOntario

21h 00m

2 stops

KIX8:45 pmOsaka Kansai Intl

Dec 10

KIX9:00 amOsaka Kansai Intl

30h 47m

2 stops

ONT10:47 pmOntario

$769

Find similar

Delta

Dec 1

ONT6:45 amOntario

21h 00m

2 stops

KIX8:45 pmOsaka Kansai Intl

Dec 5

KIX9:00 amOsaka Kansai Intl

30h 47m

2 stops

ONT10:47 pmOntario

$841

Find similar

United Airlines flights from Ontario to Osaka

Our best United Airlines deals on Ontario to Osaka flight tickets

United Airlines

Jan 27

ONT6:00 amOntario

17h 40m

1 stop

KIX4:40 pmOsaka Kansai Intl

Feb 10

KIX8:20 amOsaka Kansai Intl

31h 33m

2 stops

ONT10:53 pmOntario

$793

Find similar

United Airlines

Dec 9

ONT6:00 amOntario

17h 40m

1 stop

KIX4:40 pmOsaka Kansai Intl

Dec 25

KIX8:20 amOsaka Kansai Intl

26h 31m

2 stops

ONT5:51 pmOntario

$807

Find similar

United Airlines

Dec 9

ONT6:00 amOntario

19h 10m

2 stops

ITM6:10 pmOsaka Itami

Dec 25

ITM1:00 pmOsaka Itami

21h 51m

2 stops

ONT5:51 pmOntario

$811

Find similar

Fly from

Fly to

Route

Depart

Return

Price

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Wed 12/3

6:40 am-8:45 pm

2 stops21h 05m

Osaka Kansai Intl

Fri 12/12

11:55 am-10:47 pm

2 stops27h 52m

$755

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Mon 12/1

6:45 am-8:45 pm

2 stops21h 00m

Osaka Kansai Intl

Wed 12/10

9:00 am-10:47 pm

2 stops30h 47m

$769

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Tue 1/27

6:00 am-4:40 pm

1 stop17h 40m

Osaka Kansai Intl

Tue 2/10

8:20 am-10:53 pm

2 stops31h 33m

$793

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Tue 12/9

6:00 am-4:40 pm

1 stop17h 40m

Osaka Kansai Intl

Thu 12/25

8:20 am-5:51 pm

2 stops26h 31m

$807

OntarioOsaka

ONT - ITM

ONTITM

Ontario

Tue 12/9

6:00 am-6:10 pm

2 stops19h 10m

Osaka Itami

Thu 12/25

1:00 pm-5:51 pm

2 stops21h 51m

$811

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Tue 12/9

6:00 am-7:25 pm

2 stops20h 25m

Osaka Kansai Intl

Thu 12/25

8:20 am-5:51 pm

2 stops26h 31m

$814

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Sun 11/9

7:30 pm-6:50 pm

2 stops30h 20m

Osaka Kansai Intl

Fri 11/14

5:50 pm-10:29 pm

2 stops21h 39m

$845

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Tue 10/21

7:35 am-9:00 pm

2 stops21h 25m

Osaka Kansai Intl

Tue 11/4

9:00 am-5:10 pm

2 stops25h 10m

$846

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Fri 11/28

7:50 am-6:45 pm

1 stop17h 55m

Osaka Kansai Intl

Mon 12/8

8:45 pm-8:23 pm

1 stop16h 38m

$855

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Mon 2/16

9:50 am-6:45 pm

1 stop39h 55m

Osaka Kansai Intl

Fri 2/27

8:45 pm-9:55 pm

1 stop18h 10m

$891

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Osaka

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Layovers

What is the cheapest day to depart on your flight to Osaka?

According to our data, Tuesday is the cheapest day to fly to Osaka from Ontario. The lowest ticket price found for a Tuesday departure recently was $718. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Ontario to Osaka for around $881.

What is the cheapest time of day to depart on your flight to Osaka?

Our data shows that the cheapest Ontario to Osaka flights are usually those with departure times in the afternoon. Our users have found flights to Osaka in the afternoon for as low as $797. Flights to Osaka are more costly in the evening, with an average ticket price of $1,091. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Ontario to Osaka flights?

You could potentially save up to 13% on your flight if you consider stops on a Ontario to Osaka flight.

When to book flights from Ontario to Osaka

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Osaka according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Ontario to Osaka (ONT to OSA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Osaka

Direct flights	None

There are no direct flights from Ontario to Osaka. There are no popular flight routes from Ontario to Osaka.

Search flight deals

How far is Ontario to Osaka by plane?
The straight-line distance from Ontario to Osaka is 5733.7 mi. 17h 00m is a normal flight duration for this route.
When did momondo last update prices for flights from Ontario Airport to Osaka?
Prices for flights from Ontario Airport to Osaka are updated daily.
How many operators does momondo search for flights from Ontario Airport to Osaka?
As of October 2025, there are 2 operators available to choose from for flights from Ontario Airport to Osaka.
How old do you have to be to fly from Ontario Airport to Osaka?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Osaka.
What documentation or ID do you need to fly to Osaka?
The necessary travel and health documents for your Osaka trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Ontario to Osaka

Compare and see reviews for airlines that fly from Ontario to Osaka with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $826	Free Cancellation	Rating 7.4 8,957 reviews		Search United Airlines flights
China Airlines	PriceFrom $1,032	Free Cancellation	Rating 8.3 767 reviews		Search China Airlines flights

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Nishinomiya

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Osaka?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Osaka. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to Osaka with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ontario to Osaka flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to Osaka?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Osaka.

I’m not ready to book a flight from Ontario to Osaka right now. Can momondo alert me if prices change?

Price alerts on flights to Osaka from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Osaka trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Japan

Fly into one of these airports located in Osaka

Osaka Itami Airport

Osaka Kansai Intl Airport

Popular cities in Japan

Flights to Tokyofrom $386

Flights to Okinawafrom $548

Flights to Fukuokafrom $528

Flights to Nagoyafrom $540

Flights to Hiroshimafrom $693

Flights to Ishigakifrom $746

Flights to Kagoshimafrom $795

Flights to Hakodatefrom $802

Flights to Nagasakifrom $659

Flights to Miyakojimafrom $2,165

Flights to Sendaifrom $665

Flights to Toyamafrom $691

Cheap flights from Ontario to Osaka from $393

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Osaka departing on 11/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

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Filter for what you want

Trusted and free

Trusted and free

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Find the cheapest flights from Ontario to Osaka

Cheap round-trip flights

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Delta flights from Ontario to Osaka

Our best Delta deals on Ontario to Osaka flight tickets

United Airlines flights from Ontario to Osaka

Our best United Airlines deals on Ontario to Osaka flight tickets

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

See travel insights to Osaka from

How to get the cheapest flight ticket from Ontario to Osaka

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Osaka?

What is the cheapest time of day to depart on your flight to Osaka?

Can stopping save me money on Ontario to Osaka flights?

You could potentially save up to 13% on your flight if you consider stops on a Ontario to Osaka flight.

What is the cheapest airline that flies from Ontario to Osaka?

Alaska Airlines, Korean Air, and United Airlines are the most popular carriers operating from Ontario to Osaka

What airlines fly to Osaka?

Which airport is the most popular layover for flights between Ontario and Osaka?

Taipei City (TPE) was the most common stop: 86% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from Ontario to Osaka?

Flights via Honolulu (HNL) offer the lowest average round-trip price of $1,337.

Which layover airport has the shortest travel time from Ontario to Osaka?

Flights connecting via San Francisco (SFO) have the shortest average one-way travel time: 16h 18m.

Which layover airport has the shortest connection time from Ontario to Osaka?

San Francisco (SFO) has the shortest average layover time for this route: 2h 36m.

When to book flights from Ontario to Osaka

Cheap Ontario to Osaka (ONT to OSA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Osaka

Direct flights

How far is Ontario to Osaka by plane?

When did momondo last update prices for flights from Ontario Airport to Osaka?

How many operators does momondo search for flights from Ontario Airport to Osaka?

How old do you have to be to fly from Ontario Airport to Osaka?

What documentation or ID do you need to fly to Osaka?

Best airlines flying from Ontario to Osaka

Compare and see reviews for airlines that fly from Ontario to Osaka with momondo

Traveling to a place near Osaka?

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Osaka?

Can I find flights from Ontario to Osaka with flexible booking policies on momondo?

How can momondo help me find flights from Ontario to Osaka?

I’m not ready to book a flight from Ontario to Osaka right now. Can momondo alert me if prices change?

An easier way to manage your Osaka trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Japan

Fly into one of these airports located in Osaka

Airports listed have a maximum distance of 22.5 mi from Osaka