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Cheap flights from Ontario to Japan from $311

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 Japan departing on 4/28. 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 Japan

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:00 am - 4:00 pm
ONT
-
NRT
17h 00m1 stop
Multiple Airlines Logo
6:30 pm - 3:08 pm
NRT
-
ONT
13h 38m1 stop
$618Multiple Airlines
Sun, Jan 11 - Tue, Jan 27
Multiple Airlines Logo
6:00 am - 4:00 pm
ONT
-
NRT
17h 00m1 stop
Multiple Airlines Logo
6:30 pm - 11:56 pm
NRT
-
ONT
22h 26m1 stop
$620Multiple Airlines
Sun, Jan 11 - Fri, Jan 23
Delta Logo
3:30 pm - 2:05 pm
ONT
-
HND
29h 35m1 stop
Delta Logo
4:50 pm - 1:56 pm
HND
-
ONT
14h 06m1 stop
$678Delta
Sun, Jan 11 - Tue, Jan 27
American Airlines Logo
10:58 am - 5:05 am
ONT
-
HND
25h 07m2 stops
American Airlines Logo
1:05 pm - 4:05 pm
HND
-
ONT
20h 00m2 stops
$687American Airlines
Sat, Jan 17 - Wed, Jan 28
American Airlines Logo
7:16 am - 6:30 pm
ONT
-
HND
18h 14m1 stop
American Airlines Logo
1:05 pm - 4:05 pm
HND
-
ONT
20h 00m2 stops
$689American Airlines
Tue, Feb 3 - Tue, Feb 10
Delta Logo
5:10 pm - 2:05 pm
ONT
-
HND
27h 55m2 stops
Delta Logo
4:50 pm - 1:54 pm
HND
-
ONT
14h 04m1 stop
$691Delta
Sun, Feb 1 - Fri, Feb 13
United Airlines Logo
6:00 am - 4:40 pm
ONT
-
KIX
17h 40m1 stop
United Airlines Logo
6:35 pm - 5:41 pm
KIX
-
ONT
16h 06m1 stop
$739United Airlines
Tue, Feb 3 - Tue, Feb 24
United Airlines Logo
6:00 am - 6:30 pm
ONT
-
FUK
19h 30m2 stops
United Airlines Logo
12:40 pm - 5:43 pm
FUK
-
ONT
22h 03m2 stops
$742United Airlines
Wed, Jan 14 - Wed, Jan 21
China Airlines Logo
12:10 am - 7:45 pm
ONT
-
OKA
27h 35m1 stop
China Airlines Logo
8:55 pm - 6:00 pm
OKA
-
ONT
37h 05m1 stop
$927China Airlines
Sat, Apr 11 - Wed, Apr 15
China Airlines Logo
10:50 pm - 5:30 pm
ONT
-
FUK
25h 40m1 stop
China Airlines Logo
11:00 am - 4:50 pm
FUK
-
ONT
22h 50m1 stop
$927China Airlines
Wed, Jan 14 - Wed, Jan 21

Japan Airlines flights from Ontario to Japan

Our best Japan Airlines deals on Ontario to Japan flight tickets
Japan Airlines
Feb 1
ONT6:00 amOntario
34h 45m
2 stops
FUK9:45 amFukuoka
Feb 6
FUK1:05 pmFukuoka
19h 03m
2 stops
ONT3:08 pmOntario
$1,005
Find similar
Japan Airlines
Jan 22
ONT6:00 amOntario
20h 45m
2 stops
CTS7:45 pmSapporo Chitose
Feb 3
CTS11:40 amSapporo Chitose
20h 28m
2 stops
ONT3:08 pmOntario
$1,035
Find similar

China Airlines flights from Ontario to Japan

Our best China Airlines deals on Ontario to Japan flight tickets
China Airlines
Jan 14
ONT10:50 pmOntario
25h 40m
1 stop
FUK5:30 pmFukuoka
Jan 21
FUK11:00 amFukuoka
22h 50m
1 stop
ONT4:50 pmOntario
$927
Find similar
China Airlines
Apr 11
ONT12:10 amOntario
27h 35m
1 stop
OKA7:45 pmOkinawa Naha
Apr 18
OKA11:55 amOkinawa Naha
22h 05m
1 stop
ONT6:00 pmOntario
$929
Find similar
China Airlines
Jan 1
ONT10:50 pmOntario
21h 40m
1 stop
NRT1:30 pmTokyo Narita
Mar 22
NRT2:35 pmTokyo Narita
19h 15m
1 stop
ONT5:50 pmOntario
$1,181
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Ontario to Japan 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 December 18, 2025.
Use the filters below to find and compare flights from Ontario to Japan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Sun 1/11

6:00 am-4:00 pm

1 stop17h 00m

Tokyo Narita

Tue 1/27

6:30 pm-3:08 pm

1 stop13h 38m

$618

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Sun 1/11

6:00 am-4:00 pm

1 stop17h 00m

Tokyo Narita

Fri 1/23

6:30 pm-11:56 pm

1 stop22h 26m

$620

OntarioTokyo

ONT - HND

ONTHND

Ontario

Sun 1/11

3:30 pm-2:05 pm

1 stop29h 35m

Tokyo Haneda

Tue 1/27

4:50 pm-1:56 pm

1 stop14h 06m

$678

OntarioTokyo

ONT - HND

ONTHND

Ontario

Sat 1/17

10:58 am-5:05 am

2 stops25h 07m

Tokyo Haneda

Wed 1/28

1:05 pm-4:05 pm

2 stops20h 00m

$687

OntarioTokyo

ONT - HND

ONTHND

Ontario

Tue 2/3

7:16 am-6:30 pm

1 stop18h 14m

Tokyo Haneda

Tue 2/10

1:05 pm-4:05 pm

2 stops20h 00m

$689

OntarioTokyo

ONT - HND

ONTHND

Ontario

Sun 2/1

5:10 pm-2:05 pm

2 stops27h 55m

Tokyo Haneda

Fri 2/13

4:50 pm-1:54 pm

1 stop14h 04m

$691

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Tue 2/3

6:00 am-4:40 pm

1 stop17h 40m

Osaka Kansai Intl

Tue 2/24

6:35 pm-5:41 pm

1 stop16h 06m

$739

OntarioFukuoka

ONT - FUK

ONTFUK

Ontario

Wed 1/14

6:00 am-6:30 pm

2 stops19h 30m

Fukuoka

Wed 1/21

12:40 pm-5:43 pm

2 stops22h 03m

$742

OntarioOkinawa

ONT - OKA

ONTOKA

Ontario

Sat 4/11

12:10 am-7:45 pm

1 stop27h 35m

Okinawa Naha

Wed 4/15

8:55 pm-6:00 pm

1 stop37h 05m

$927

OntarioFukuoka

ONT - FUK

ONTFUK

Ontario

Wed 1/14

10:50 pm-5:30 pm

1 stop25h 40m

Fukuoka

Wed 1/21

11:00 am-4:50 pm

1 stop22h 50m

$927

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 Japan from

How to get the cheapest flight ticket from Ontario to Japan

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 month to fly to Japan?

The month of January is, on average, the cheapest month to fly to Japan from Ontario, with most prices found around $669. If you aren’t able to travel to Japan during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $723.

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

On average, the least expensive day to fly to Japan from Ontario is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $911. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Ontario to Japan on a Saturday will generally be more expensive and average around $1,109. 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 Japan?

Flying to Japan from Ontario at noon is the least expensive time of day to depart. momondo users have found prices as low as $986 when looking at flights departing at noon. In the evening is when there is more demand to fly to Japan, so prices are often more expensive at around $1,036 per ticket.

Can stopping save me money on Ontario to Japan flights?

You could potentially save up to 9% on your flight if you consider stops on a Ontario to Japan flight.

Cheap Ontario to Japan flight deals and tips

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

Fastest flight time

14h 27m

Direct flights

None
The fastest flight from Ontario to Japan takes 14h 27m
There are no direct flights from Ontario to Japan. There are no popular flight routes from Ontario to Japan.
Search flight deals

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

    Prices for flights from Ontario Airport to Japan were last updated today.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Japan.

  • What documentation or ID do you need to fly to Japan?

    The travel and health documents required for your trip to Japan 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 Japan. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Ontario to Japan

Compare and see reviews for airlines that fly from Ontario to Japan with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $486Free CancellationRating
7.4
9,092 reviews
Search United Airlines flights
American AirlinesPriceFrom $712Free CancellationRating
7.2
11,053 reviews
Search American Airlines flights
DeltaPriceFrom $743Free CancellationRating
7.9
8,006 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $892Free CancellationRating
7.8
2,819 reviews
Search Hawaiian Airlines flights
China AirlinesPriceFrom $902Free CancellationRating
8.3
792 reviews
Search China Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Japan from Ontario.

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

Yes. momondo enables you to select and highlight flights to Japan from Ontario with this policy.

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

Once you have performed a search for Ontario to Japan 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 Japan right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Ontario to Japan now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Japan and let you know when they change.

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