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Cheap flights from Ontario to Osaka from $347

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 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Ontario to Osaka (ONT-KIX)

Cheap round-trip flights

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
$713Alaska Airlines
Find Deal
Mon, Jan 19 - Tue, Jan 27
Alaska Airlines Logo
8:35 am - 6:45 pmONT-KIX
18h 10m1 stop
Alaska Airlines Logo
8:45 pm - 9:10 pmKIX-ONT
16h 25m1 stop
$721Alaska Airlines
Find Deal
Sat, Sep 6 - Sun, Sep 14
Korean Air Logo
6:37 am - 9:00 pmONT-KIX
22h 23m2 stops
Korean Air Logo
11:55 am - 5:10 pmKIX-ONT
21h 15m2 stops
$726Korean Air
Find Deal
Tue, Oct 21 - Wed, Oct 29
American Airlines Logo
6:10 am - 6:45 pmONT-KIX
20h 35m2 stops
American Airlines Logo
5:55 pm - 9:48 pmKIX-ONT
19h 53m2 stops
$731American Airlines
Find Deal
Mon, Sep 15 - Mon, Sep 29
Korean Air Logo
6:00 am - 9:00 pmONT-KIX
23h 00m2 stops
Korean Air Logo
6:20 pm - 5:00 pmKIX-ONT
38h 40m2 stops
$739Korean Air
Find Deal
Thu, Sep 25 - Sat, Oct 4
United Airlines Logo
6:00 am - 2:50 pmONT-KIX
16h 50m1 stop
United Airlines Logo
4:50 pm - 5:37 pmKIX-ONT
16h 47m1 stop
$756United Airlines
Find Deal
Wed, Sep 17 - Wed, Sep 24
United Airlines Logo
6:00 am - 4:40 pmONT-KIX
18h 40m1 stop
United Airlines Logo
8:25 am - 10:51 pmKIX-ONT
31h 26m2 stops
$759United Airlines
Find Deal
Mon, Oct 27 - Wed, Nov 12
American Airlines Logo
6:10 am - 6:45 pmONT-KIX
20h 35m2 stops
American Airlines Logo
5:55 pm - 9:49 pmKIX-ONT
19h 54m2 stops
$794American Airlines
Find Deal
Thu, Oct 2 - Thu, Oct 9
Hawaiian Airlines Logo
10:09 am - 6:45 pmONT-KIX
16h 36m1 stop
Hawaiian Airlines Logo
8:45 pm - 9:10 pmKIX-ONT
16h 25m1 stop
$797Hawaiian Airlines
Find Deal
Wed, Sep 17 - Wed, Sep 24
Hawaiian Airlines Logo
8:35 am - 6:45 pmONT-KIX
18h 10m1 stop
Hawaiian Airlines Logo
8:45 pm - 9:10 pmKIX-ONT
16h 25m1 stop
$808Hawaiian Airlines
Find Deal
Sun, Aug 31 - Sat, Sep 13

China Airlines flights from Ontario to Osaka Kansai Intl Airport

Our best China Airlines deals on Ontario to Osaka Kansai Intl Airport flight tickets
China Airlines
Aug 25
ONT12:45 amOntario
20h 05m
1 stop
KIX12:50 pmOsaka Kansai Intl
Sep 2
KIX2:00 pmOsaka Kansai Intl
20h 40m
1 stop
ONT6:40 pmOntario
$952
Find similar
China Airlines
Aug 30
ONT12:45 amOntario
25h 20m
1 stop
KIX6:05 pmOsaka Kansai Intl
Sep 13
KIX1:10 pmOsaka Kansai Intl
21h 30m
1 stop
ONT6:40 pmOntario
$982
Find similar
China Airlines
Aug 30
ONT12:45 amOntario
25h 20m
1 stop
KIX6:05 pmOsaka Kansai Intl
Sep 13
KIX1:10 pmOsaka Kansai Intl
21h 30m
1 stop
ONT6:40 pmOntario
$984
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
Sep 15
ONT6:10 amOntario
20h 35m
2 stops
KIX6:45 pmOsaka Kansai Intl
Sep 29
KIX5:55 pmOsaka Kansai Intl
19h 53m
2 stops
ONT9:48 pmOntario
$731
Find similar
American Airlines
Oct 2
ONT6:10 amOntario
20h 35m
2 stops
KIX6:45 pmOsaka Kansai Intl
Oct 9
KIX5:55 pmOsaka Kansai Intl
19h 54m
2 stops
ONT9:49 pmOntario
$794
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 August 20, 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

Mon 1/19

9:50 am-6:45 pm

1 stop39h 55m

Osaka Kansai Intl

Tue 1/27

8:45 pm-9:55 pm

1 stop18h 10m

$713

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Sat 9/6

8:35 am-6:45 pm

1 stop18h 10m

Osaka Kansai Intl

Sun 9/14

8:45 pm-9:10 pm

1 stop16h 25m

$721

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Tue 10/21

6:37 am-9:00 pm

2 stops22h 23m

Osaka Kansai Intl

Wed 10/29

11:55 am-5:10 pm

2 stops21h 15m

$726

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Mon 9/15

6:10 am-6:45 pm

2 stops20h 35m

Osaka Kansai Intl

Mon 9/29

5:55 pm-9:48 pm

2 stops19h 53m

$731

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Thu 9/25

6:00 am-9:00 pm

2 stops23h 00m

Osaka Kansai Intl

Sat 10/4

6:20 pm-5:00 pm

2 stops38h 40m

$739

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Wed 9/17

6:00 am-2:50 pm

1 stop16h 50m

Osaka Kansai Intl

Wed 9/24

4:50 pm-5:37 pm

1 stop16h 47m

$756

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Mon 10/27

6:00 am-4:40 pm

1 stop18h 40m

Osaka Kansai Intl

Wed 11/12

8:25 am-10:51 pm

2 stops31h 26m

$759

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Thu 10/2

6:10 am-6:45 pm

2 stops20h 35m

Osaka Kansai Intl

Thu 10/9

5:55 pm-9:49 pm

2 stops19h 54m

$794

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Wed 9/17

10:09 am-6:45 pm

1 stop16h 36m

Osaka Kansai Intl

Wed 9/24

8:45 pm-9:10 pm

1 stop16h 25m

$797

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Sun 8/31

8:35 am-6:45 pm

1 stop18h 10m

Osaka Kansai Intl

Sat 9/13

8:45 pm-9:10 pm

1 stop16h 25m

$808

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 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 $776. Flights from Ontario to Osaka Kansai Intl Airport on a Thursday will generally be more expensive and average around $904. 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 $812. 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 5% 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.
Search flight deals

  • 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 16h 36m.

  • 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
8,928 reviews
Search United Airlines flights
China AirlinesPriceFrom $1,032Free CancellationRating
8.3
764 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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