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Cheap flights from Ontario to Japan from $187

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 2/8. 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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Cheap round-trip flights

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Alaska Airlines Logo
8:13 am - 7:30 pmONT-HND
18h 17m1 stop
Alaska Airlines Logo
9:20 pm - 10:28 pmHND-ONT
18h 08m1 stop
$389Alaska Airlines
Find Deal
Mon, Jan 19 - Wed, Jan 28
Alaska Airlines Logo
8:13 am - 7:30 pmONT-HND
18h 17m1 stop
Alaska Airlines Logo
9:20 pm - 10:28 pmHND-ONT
18h 08m1 stop
$401Alaska Airlines
Find Deal
Tue, Jan 20 - Tue, Jan 27
American Airlines Logo
11:59 pm - 3:30 pmONT-NRT
22h 31m1 stop
American Airlines Logo
5:30 pm - 10:48 pmNRT-ONT
22h 18m1 stop
$749American Airlines
Find Deal
Mon, Jan 19 - Sun, Feb 1
Delta Logo
6:00 am - 9:05 pmONT-NRT
22h 05m2 stops
Delta Logo
9:15 am - 11:58 pmNRT-ONT
31h 43m2 stops
$750Delta
Find Deal
Mon, Jan 19 - Tue, Jan 27
Delta Logo
7:30 am - 9:05 pmONT-NRT
20h 35m2 stops
Delta Logo
9:15 am - 11:52 pmNRT-ONT
31h 37m2 stops
$751Delta
Find Deal
Sun, Feb 8 - Tue, Feb 24
American Airlines Logo
4:45 pm - 3:30 pmONT-NRT
29h 45m2 stops
American Airlines Logo
5:30 pm - 6:40 pmNRT-ONT
18h 10m1 stop
$753American Airlines
Find Deal
Wed, Feb 11 - Wed, Feb 25
United Airlines Logo
6:00 am - 4:40 pmONT-KIX
17h 40m1 stop
United Airlines Logo
6:35 pm - 5:43 pmKIX-ONT
16h 08m1 stop
$789United Airlines
Find Deal
Mon, Jan 19 - Fri, Feb 6
United Airlines Logo
6:00 am - 4:40 pmONT-KIX
17h 40m1 stop
United Airlines Logo
8:20 am - 10:57 pmKIX-ONT
31h 37m2 stops
$791United Airlines
Find Deal
Sun, Jan 18 - Wed, Feb 18
China Airlines Logo
12:10 am - 7:45 pmONT-OKA
27h 35m1 stop
China Airlines Logo
11:50 am - 6:00 pmOKA-ONT
22h 10m1 stop
$876China Airlines
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Fri, Apr 3 - Sat, Apr 11
China Airlines Logo
10:50 pm - 7:20 pmONT-OKA
27h 30m1 stop
China Airlines Logo
11:55 am - 5:50 pmOKA-ONT
21h 55m1 stop
$881China Airlines
Find Deal
Sun, Mar 1 - Sat, Mar 14

EVA Air flights from Ontario to Japan

Our best EVA Air deals on Ontario to Japan flight tickets
EVA Air
Nov 13
ONT4:11 pmOntario
24h 44m
2 stops
KIX9:55 amOsaka Kansai Intl
Nov 16
KIX10:55 amOsaka Kansai Intl
29h 37m
2 stops
ONT11:32 pmOntario
$1,213
Find similar
EVA Air
Nov 27
ONT6:00 amOntario
36h 15m
2 stops
FUK11:15 amFukuoka
Dec 6
FUK12:15 pmFukuoka
40h 04m
2 stops
ONT11:19 amOntario
$1,239
Find similar

United Airlines flights from Ontario to Japan

Our best United Airlines deals on Ontario to Japan flight tickets
United Airlines
Jan 19
ONT6:00 amOntario
17h 40m
1 stop
KIX4:40 pmOsaka Kansai Intl
Feb 6
KIX6:35 pmOsaka Kansai Intl
16h 08m
1 stop
ONT5:43 pmOntario
$789
Find similar
United Airlines
Jan 18
ONT6:00 amOntario
17h 40m
1 stop
KIX4:40 pmOsaka Kansai Intl
Feb 18
KIX8:20 amOsaka Kansai Intl
31h 37m
2 stops
ONT10:57 pmOntario
$791
Find similar
United Airlines
Jan 7
ONT6:00 amOntario
19h 30m
2 stops
FUK6:30 pmFukuoka
Jan 21
FUK12:40 pmFukuoka
22h 03m
2 stops
ONT5:43 pmOntario
$792
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 November 3, 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 - HND

ONTHND

Ontario

Mon 1/19

8:13 am-7:30 pm

1 stop18h 17m

Tokyo Haneda

Wed 1/28

9:20 pm-10:28 pm

1 stop18h 08m

$389

OntarioTokyo

ONT - HND

ONTHND

Ontario

Tue 1/20

8:13 am-7:30 pm

1 stop18h 17m

Tokyo Haneda

Tue 1/27

9:20 pm-10:28 pm

1 stop18h 08m

$401

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Mon 1/19

11:59 pm-3:30 pm

1 stop22h 31m

Tokyo Narita

Sun 2/1

5:30 pm-10:48 pm

1 stop22h 18m

$749

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Mon 1/19

6:00 am-9:05 pm

2 stops22h 05m

Tokyo Narita

Tue 1/27

9:15 am-11:58 pm

2 stops31h 43m

$750

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Sun 2/8

7:30 am-9:05 pm

2 stops20h 35m

Tokyo Narita

Tue 2/24

9:15 am-11:52 pm

2 stops31h 37m

$751

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Wed 2/11

4:45 pm-3:30 pm

2 stops29h 45m

Tokyo Narita

Wed 2/25

5:30 pm-6:40 pm

1 stop18h 10m

$753

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Mon 1/19

6:00 am-4:40 pm

1 stop17h 40m

Osaka Kansai Intl

Fri 2/6

6:35 pm-5:43 pm

1 stop16h 08m

$789

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Sun 1/18

6:00 am-4:40 pm

1 stop17h 40m

Osaka Kansai Intl

Wed 2/18

8:20 am-10:57 pm

2 stops31h 37m

$791

OntarioOkinawa

ONT - OKA

ONTOKA

Ontario

Fri 4/3

12:10 am-7:45 pm

1 stop27h 35m

Okinawa Naha

Sat 4/11

11:50 am-6:00 pm

1 stop22h 10m

$876

OntarioOkinawa

ONT - OKA

ONTOKA

Ontario

Sun 3/1

10:50 pm-7:20 pm

1 stop27h 30m

Okinawa Naha

Sat 3/14

11:55 am-5:50 pm

1 stop21h 55m

$881

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 February is, on average, the cheapest month to fly to Japan from Ontario, with most prices found around $752. If you aren’t able to travel to Japan during the month of February, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $792.

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 17% 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

Direct flights

None
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
8,997 reviews
Search United Airlines flights
China AirlinesPriceFrom $632Free CancellationRating
8.3
776 reviews
Search China Airlines flights
American AirlinesPriceFrom $712Free CancellationRating
7.2
11,038 reviews
Search American Airlines flights
DeltaPriceFrom $743Free CancellationRating
7.9
8,002 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $892Free CancellationRating
7.8
2,799 reviews
Search Hawaiian 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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