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Cheap flights from Ontario to Osaka from $380

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 1/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ontario to Osaka

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:00 am - 4:40 pmONT-KIX
17h 40m1 stop
United Airlines Logo
6:35 pm - 5:41 pmKIX-ONT
16h 06m1 stop
$790United Airlines
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Tue, Feb 10 - Tue, Feb 24
United Airlines Logo
6:00 am - 7:25 pmONT-KIX
20h 25m2 stops
United Airlines Logo
6:35 pm - 5:41 pmKIX-ONT
16h 06m1 stop
$796United Airlines
Find Deal
Tue, Feb 10 - Tue, Feb 24
Alaska Airlines Logo
7:00 am - 6:45 pmONT-KIX
18h 45m1 stop
Alaska Airlines Logo
8:45 pm - 10:28 pmKIX-ONT
18h 43m1 stop
$801Alaska Airlines
Find Deal
Mon, Dec 8 - Thu, Jan 15
American Airlines Logo
4:47 pm - 6:50 pmONT-KIX
33h 03m2 stops
American Airlines Logo
5:50 pm - 6:20 pmKIX-ONT
17h 30m2 stops
$830American Airlines
Find Deal
Mon, Nov 17 - Fri, Nov 21
Alaska Airlines Logo
9:50 am - 6:45 pmONT-KIX
39h 55m1 stop
Alaska Airlines Logo
8:45 pm - 9:55 pmKIX-ONT
18h 10m1 stop
$842Alaska Airlines
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Fri, Feb 20 - Sat, Mar 7
Korean Air Logo
6:45 am - 8:45 pmONT-KIX
21h 00m2 stops
Korean Air Logo
6:10 pm - 5:08 pmKIX-ONT
39h 58m2 stops
$845Korean Air
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Mon, Nov 24 - Tue, Dec 2
American Airlines Logo
11:59 pm - 6:50 pmONT-KIX
25h 51m2 stops
American Airlines Logo
5:50 pm - 10:15 pmKIX-ONT
21h 25m2 stops
$873American Airlines
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Sun, Dec 7 - Sun, Dec 14
China Airlines Logo
10:50 pm - 11:35 amONT-KIX
19h 45m1 stop
China Airlines Logo
1:10 pm - 6:00 pmKIX-ONT
20h 50m1 stop
$881China Airlines
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Tue, Jan 6 - Thu, Apr 2
China Airlines Logo
11:50 pm - 1:20 pmONT-KIX
21h 30m1 stop
China Airlines Logo
2:00 pm - 6:00 pmKIX-ONT
20h 00m1 stop
$890China Airlines
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Thu, Mar 26 - Sun, Apr 5
Korean Air Logo
6:45 am - 8:45 pmONT-KIX
21h 00m2 stops
Korean Air Logo
11:55 am - 6:18 pmKIX-ONT
23h 23m2 stops
$912Korean Air
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Mon, Nov 24 - Thu, Nov 27

Alaska Airlines flights from Ontario to Osaka Kansai Intl Airport

Our best Alaska Airlines deals on Ontario to Osaka Kansai Intl Airport flight tickets
Alaska Airlines
Dec 8
ONT7:00 amOntario
18h 45m
1 stop
KIX6:45 pmOsaka Kansai Intl
Jan 15
KIX8:45 pmOsaka Kansai Intl
18h 43m
1 stop
ONT10:28 pmOntario
$801
Find similar
Alaska Airlines
Feb 20
ONT9:50 amOntario
39h 55m
1 stop
KIX6:45 pmOsaka Kansai Intl
Mar 7
KIX8:45 pmOsaka Kansai Intl
18h 10m
1 stop
ONT9:55 pmOntario
$842
Find similar
Alaska Airlines
Dec 7
ONT7:00 amOntario
18h 45m
1 stop
KIX6:45 pmOsaka Kansai Intl
Jan 14
KIX8:45 pmOsaka Kansai Intl
18h 43m
1 stop
ONT10:28 pmOntario
$905
Find similar

American Airlines flights from Ontario to Osaka Kansai Intl Airport

Our best American Airlines deals on Ontario to Osaka Kansai Intl Airport flight tickets
American Airlines
Nov 17
ONT4:47 pmOntario
33h 03m
2 stops
KIX6:50 pmOsaka Kansai Intl
Nov 21
KIX5:50 pmOsaka Kansai Intl
17h 30m
2 stops
ONT6:20 pmOntario
$830
Find similar
American Airlines
Dec 7
ONT11:59 pmOntario
25h 51m
2 stops
KIX6:50 pmOsaka Kansai Intl
Dec 14
KIX5:50 pmOsaka Kansai Intl
21h 25m
2 stops
ONT10:15 pmOntario
$873
Find similar
American Airlines
Dec 8
ONT12:55 pmOntario
36h 55m
2 stops
KIX6:50 pmOsaka Kansai Intl
Dec 15
KIX5:50 pmOsaka Kansai Intl
21h 38m
2 stops
ONT10:28 pmOntario
$927
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Osaka Kansai Intl Airport 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, momondo users made 832,500 searches. Data last updated October 24, 2025.
Use the filters below to find and compare flights from Ontario to Osaka Kansai Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Tue 2/10

6:00 am-4:40 pm

1 stop17h 40m

Osaka Kansai Intl

Tue 2/24

6:35 pm-5:41 pm

1 stop16h 06m

$790

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Tue 2/10

6:00 am-7:25 pm

2 stops20h 25m

Osaka Kansai Intl

Tue 2/24

6:35 pm-5:41 pm

1 stop16h 06m

$796

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Mon 12/8

7:00 am-6:45 pm

1 stop18h 45m

Osaka Kansai Intl

Thu 1/15

8:45 pm-10:28 pm

1 stop18h 43m

$801

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Mon 11/17

4:47 pm-6:50 pm

2 stops33h 03m

Osaka Kansai Intl

Fri 11/21

5:50 pm-6:20 pm

2 stops17h 30m

$830

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Fri 2/20

9:50 am-6:45 pm

1 stop39h 55m

Osaka Kansai Intl

Sat 3/7

8:45 pm-9:55 pm

1 stop18h 10m

$842

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Mon 11/24

6:45 am-8:45 pm

2 stops21h 00m

Osaka Kansai Intl

Tue 12/2

6:10 pm-5:08 pm

2 stops39h 58m

$845

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Sun 12/7

11:59 pm-6:50 pm

2 stops25h 51m

Osaka Kansai Intl

Sun 12/14

5:50 pm-10:15 pm

2 stops21h 25m

$873

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Tue 1/6

10:50 pm-11:35 am

1 stop19h 45m

Osaka Kansai Intl

Thu 4/2

1:10 pm-6:00 pm

1 stop20h 50m

$881

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Thu 3/26

11:50 pm-1:20 pm

1 stop21h 30m

Osaka Kansai Intl

Sun 4/5

2:00 pm-6:00 pm

1 stop20h 00m

$890

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Mon 11/24

6:45 am-8:45 pm

2 stops21h 00m

Osaka Kansai Intl

Thu 11/27

11:55 am-6:18 pm

2 stops23h 23m

$912

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Osaka from

How to get the cheapest flight ticket from Ontario to Osaka Kansai Intl Airport

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 typical price of a round-trip flight between Ontario and Osaka Kansai Intl Airport?

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

The cheapest day to depart from Ontario to Osaka Kansai Intl Airport is on a Tuesday. Travelers who choose to depart for Osaka Kansai Intl Airport on a Tuesday will often find tickets for as low as $718. Flights from Ontario to Osaka Kansai Intl Airport on a Saturday will generally be more expensive and average around $874. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Our data shows that the cheapest Ontario to Osaka Kansai Intl Airport flights are usually those with departure times in the afternoon. Our users have found flights to Osaka Kansai Intl Airport in the afternoon for as low as $797. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $1,127 on average. Flights to Osaka Kansai Intl Airport from Ontario in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Ontario to Osaka Kansai Intl Airport flights?

You could potentially save up to 6% on your flight if you consider stops on a Ontario to Osaka Kansai Intl Airport flight.

When to book flights from Ontario to Osaka Kansai Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Osaka Kansai Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Osaka Kansai Intl Airport (ONT to KIX) flight deals and tips

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

Direct flights

None
There are no direct flights from Ontario to Osaka Kansai Intl Airport. There are no popular flight routes from Ontario to Osaka Kansai Intl Airport.
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  • How far is Ontario to Osaka Kansai Intl by plane?

    Ontario and Osaka Kansai Intl are 5755.8 mi apart from one another. A reasonable flight in good conditions will take 17h 40m.

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

    Prices for flights from Ontario Airport to Osaka Kansai Intl Airport were last updated today.

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

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

    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 Kansai Intl Airport.

  • What documentation or ID do you need to fly to Osaka Kansai Intl Airport?

    The travel and health documents required for your trip to Osaka Kansai Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Osaka Kansai Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Ontario to Osaka Kansai Intl Airport?

Best airlines flying from Ontario to Osaka Kansai Intl Airport

Compare and see reviews for airlines that fly from Ontario to Osaka Kansai Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $826Free CancellationRating
7.4
8,994 reviews
Search United Airlines flights
China AirlinesPriceFrom $1,032Free CancellationRating
8.3
776 reviews
Search China Airlines flights

Traveling to a place near Osaka?

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

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Osaka for you.

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

Yes. All flights to Osaka from Ontario on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for Ontario to Osaka flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Osaka, momondo offers a useful price alert feature which will track prices for flights to Osaka from Ontario and alert you when they change.

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