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Cheap flights from Ontario to Osaka from $485

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 7/20. 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 - 2:50 pm
ONT
-
KIX
16h 50m
1 stop
United Airlines Logo
4:55 pm - 6:11 pm
KIX
-
ONT
17h 16m
1 stop
$1,023United Airlines
Sun, Aug 23 - Tue, Sep 1
United Airlines Logo
6:00 am - 5:05 pm
ONT
-
ITM
19h 05m
2 stops
United Airlines Logo
12:50 pm - 8:04 pm
ITM
-
ONT
23h 14m
2 stops
$1,029United Airlines
Sun, Aug 23 - Tue, Sep 1
United Airlines Logo
9:01 am - 7:50 pm
ONT
-
KIX
18h 49m
2 stops
United Airlines Logo
4:55 pm - 8:04 pm
KIX
-
ONT
19h 09m
1 stop
$1,030United Airlines
Sun, Aug 23 - Tue, Sep 1
United Airlines Logo
6:00 am - 2:50 pm
ONT
-
KIX
16h 50m
1 stop
United Airlines Logo
4:55 pm - 8:04 pm
KIX
-
ONT
19h 09m
1 stop
$1,078United Airlines
Fri, Aug 28 - Fri, Sep 11
United Airlines Logo
6:00 am - 2:50 pm
ONT
-
KIX
16h 50m
1 stop
United Airlines Logo
4:55 pm - 12:12 pm
KIX
-
ONT
35h 17m
1 stop
$1,085United Airlines
Wed, Jul 29 - Sun, Aug 16
China Airlines Logo
12:45 am - 12:50 pm
ONT
-
KIX
20h 05m
1 stop
China Airlines Logo
2:00 pm - 6:00 pm
KIX
-
ONT
20h 00m
1 stop
$1,117China Airlines
Mon, Sep 14 - Thu, Oct 15
China Airlines Logo
12:45 am - 12:00 pm
ONT
-
KIX
19h 15m
1 stop
China Airlines Logo
2:00 pm - 6:00 pm
KIX
-
ONT
20h 00m
1 stop
$1,120China Airlines
Wed, Sep 2 - Thu, Sep 17
American Airlines Logo
6:00 am - 7:50 pm
ONT
-
ITM
21h 50m
2 stops
American Airlines Logo
4:30 pm - 10:23 pm
ITM
-
ONT
22h 53m
2 stops
$1,243American Airlines
Mon, Sep 7 - Tue, Nov 24
American Airlines Logo
11:59 pm - 5:35 pm
ONT
-
ITM
25h 36m
2 stops
American Airlines Logo
4:30 pm - 9:08 pm
ITM
-
ONT
20h 38m
2 stops
$1,325American Airlines
Tue, Oct 13 - Tue, Oct 27
Japan Airlines Logo
6:00 am - 7:50 pm
ONT
-
ITM
21h 50m
2 stops
Japan Airlines Logo
8:25 am - 2:55 pm
ITM
-
ONT
22h 30m
3 stops
$1,424Japan Airlines
Mon, Oct 12 - Wed, Oct 28

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China Airlines flights from Ontario to Osaka

Our best China Airlines deals on Ontario to Osaka flight tickets
China Airlines
Sep 14
ONT12:45 amOntario
20h 05m
1 stop
KIX12:50 pmOsaka Kansai Intl
Oct 15
KIX2:00 pmOsaka Kansai Intl
20h 00m
1 stop
ONT6:00 pmOntario
$1,117
China Airlines
Sep 2
ONT12:45 amOntario
19h 15m
1 stop
KIX12:00 pmOsaka Kansai Intl
Sep 17
KIX2:00 pmOsaka Kansai Intl
20h 00m
1 stop
ONT6:00 pmOntario
$1,120
China Airlines
Sep 18
ONT12:10 amOntario
19h 50m
1 stop
KIX12:00 pmOsaka Kansai Intl
Sep 25
KIX2:00 pmOsaka Kansai Intl
20h 00m
1 stop
ONT6:00 pmOntario
$1,129

United Airlines flights from Ontario to Osaka

Our best United Airlines deals on Ontario to Osaka flight tickets
United Airlines
Aug 23
ONT6:00 amOntario
16h 50m
1 stop
KIX2:50 pmOsaka Kansai Intl
Sep 1
KIX4:55 pmOsaka Kansai Intl
17h 16m
1 stop
ONT6:11 pmOntario
$1,023
United Airlines
Aug 23
ONT6:00 amOntario
19h 05m
2 stops
ITM5:05 pmOsaka Itami
Sep 1
ITM12:50 pmOsaka Itami
23h 14m
2 stops
ONT8:04 pmOntario
$1,029
United Airlines
Aug 23
ONT9:01 amOntario
18h 49m
2 stops
KIX7:50 pmOsaka Kansai Intl
Sep 1
KIX4:55 pmOsaka Kansai Intl
19h 09m
1 stop
ONT8:04 pmOntario
$1,030

momondo 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, momondo users made 832,500 searches. Data last updated May 1, 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
Quickest round-trip

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Sun 8/23

6:00 am-2:50 pm

1 stop16h 50m

Osaka Kansai Intl

Tue 9/1

4:55 pm-6:11 pm

1 stop17h 16m

$1,023

OntarioOsaka

ONT - ITM

ONTITM

Ontario

Sun 8/23

6:00 am-5:05 pm

2 stops19h 05m

Osaka Itami

Tue 9/1

12:50 pm-8:04 pm

2 stops23h 14m

$1,029

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Sun 8/23

9:01 am-7:50 pm

2 stops18h 49m

Osaka Kansai Intl

Tue 9/1

4:55 pm-8:04 pm

1 stop19h 09m

$1,030

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Fri 8/28

6:00 am-2:50 pm

1 stop16h 50m

Osaka Kansai Intl

Fri 9/11

4:55 pm-8:04 pm

1 stop19h 09m

$1,078

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Wed 7/29

6:00 am-2:50 pm

1 stop16h 50m

Osaka Kansai Intl

Sun 8/16

4:55 pm-12:12 pm

1 stop35h 17m

$1,085

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Mon 9/14

12:45 am-12:50 pm

1 stop20h 05m

Osaka Kansai Intl

Thu 10/15

2:00 pm-6:00 pm

1 stop20h 00m

$1,117

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Wed 9/2

12:45 am-12:00 pm

1 stop19h 15m

Osaka Kansai Intl

Thu 9/17

2:00 pm-6:00 pm

1 stop20h 00m

$1,120

OntarioOsaka

ONT - ITM

ONTITM

Ontario

Mon 9/7

6:00 am-7:50 pm

2 stops21h 50m

Osaka Itami

Tue 11/24

4:30 pm-10:23 pm

2 stops22h 53m

$1,243

OntarioOsaka

ONT - ITM

ONTITM

Ontario

Tue 10/13

11:59 pm-5:35 pm

2 stops25h 36m

Osaka Itami

Tue 10/27

4:30 pm-9:08 pm

2 stops20h 38m

$1,325

OntarioOsaka

ONT - ITM

ONTITM

Ontario

Mon 10/12

6:00 am-7:50 pm

2 stops21h 50m

Osaka Itami

Wed 10/28

8:25 am-2:55 pm

3 stops22h 30m

$1,424

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

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?

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 $767. 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 $1,036.

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 $842. Flights to Osaka are more costly at noon, with an average ticket price of $878. Departure times at noon 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 43% 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

Fastest flight time

16h 45m

Direct flights

None
The fastest flight from Ontario to Osaka takes 16h 45m
There are no direct flights from Ontario to Osaka. There are no popular flight routes from Ontario to Osaka.
Search flight deals

Frequently asked questions about flying from Ontario to Osaka

  • How far is Ontario to Osaka by plane?

    The straight-line distance from Ontario to Osaka is 5733.7 mi. 16h 45m 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?

  • 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.

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

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
China AirlinesPriceFrom $998Free CancellationRating
8.3
819 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
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.

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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
Osaka Itami Airport
Osaka Kansai Intl Airport