Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Ontario to Japan from $377

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 9/21. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Ontario to Japan

Cheap round-trip flights

Alaska Airlines Logo
6:00 am - 4:00 pmONT-NRT
18h 00m1 stop
Alaska Airlines Logo
6:25 pm - 12:03 amNRT-ONT
21h 38m1 stop
$713Alaska Airlines
Find Deal
Tue, Aug 26 - Thu, Sep 25
Hawaiian Airlines Logo
6:00 am - 4:00 pmONT-NRT
18h 00m1 stop
Hawaiian Airlines Logo
6:25 pm - 6:47 pmNRT-ONT
16h 22m1 stop
$721Hawaiian Airlines
Find Deal
Mon, Sep 8 - Tue, Sep 23
Delta Logo
6:43 am - 12:45 pmONT-CTS
37h 02m2 stops
Delta Logo
2:00 pm - 5:17 pmCTS-ONT
20h 17m2 stops
$754Delta
Find Deal
Sun, Nov 23 - Fri, Nov 28
Delta Logo
6:00 am - 2:15 pmONT-HND
16h 15m1 stop
Delta Logo
4:05 pm - 10:50 amHND-ONT
34h 45m1 stop
$785Delta
Find Deal
Sun, Aug 17 - Tue, Sep 2
United Airlines Logo
6:00 am - 6:20 pmONT-FUK
19h 20m2 stops
United Airlines Logo
12:30 pm - 10:45 pmFUK-ONT
27h 15m2 stops
$859United Airlines
Find Deal
Tue, Nov 18 - Tue, Nov 25
China Airlines Logo
10:50 pm - 7:15 pmONT-OKA
27h 25m1 stop
China Airlines Logo
11:55 am - 4:50 pmOKA-ONT
21h 55m1 stop
$885China Airlines
Find Deal
Mon, Jan 19 - Tue, Jan 27
American Airlines Logo
11:59 pm - 3:55 pmONT-HND
23h 56m1 stop
American Airlines Logo
4:30 pm - 6:54 pmHND-ONT
18h 24m1 stop
$889American Airlines
Find Deal
Mon, Sep 1 - Thu, Sep 18
China Airlines Logo
10:50 pm - 5:30 pmONT-FUK
25h 40m1 stop
China Airlines Logo
8:35 pm - 4:50 pmFUK-ONT
37h 15m1 stop
$893China Airlines
Find Deal
Sun, Jan 4 - Sat, Jan 17
American Airlines Logo
1:10 pm - 4:45 amONT-HND
23h 35m2 stops
American Airlines Logo
11:55 am - 4:05 pmHND-ONT
20h 10m2 stops
$893American Airlines
Find Deal
Tue, Sep 9 - Thu, Sep 18
United Airlines Logo
6:00 am - 2:50 pmONT-KIX
16h 50m1 stop
United Airlines Logo
4:50 pm - 5:40 pmKIX-ONT
16h 50m1 stop
$914United Airlines
Find Deal
Wed, Aug 20 - Tue, Sep 30

China Airlines flights from Ontario to Japan

Our best China Airlines deals on Ontario to Japan flight tickets
China Airlines
Jan 19
ONT10:50 pmOntario
27h 25m
1 stop
OKA7:15 pmOkinawa Naha
Jan 27
OKA11:55 amOkinawa Naha
21h 55m
1 stop
ONT4:50 pmOntario
$885
Find similar
China Airlines
Jan 4
ONT10:50 pmOntario
25h 40m
1 stop
FUK5:30 pmFukuoka
Jan 17
FUK8:35 pmFukuoka
37h 15m
1 stop
ONT4:50 pmOntario
$893
Find similar
China Airlines
Jan 5
ONT10:50 pmOntario
18h 55m
1 stop
OKA10:45 amOkinawa Naha
Jan 19
OKA11:55 amOkinawa Naha
21h 55m
1 stop
ONT4:50 pmOntario
$899
Find similar

STARLUX Airlines flights from Ontario to Japan

Our best STARLUX Airlines deals on Ontario to Japan flight tickets
STARLUX Airlines
Sep 6
ONT11:10 pmOntario
23h 30m
1 stop
OKA2:40 pmOkinawa Naha
Sep 15
OKA3:50 pmOkinawa Naha
17h 15m
1 stop
ONT5:05 pmOntario
$912
Find similar
STARLUX Airlines
Sep 6
ONT11:10 pmOntario
23h 30m
1 stop
OKA2:40 pmOkinawa Naha
Sep 15
OKA3:50 pmOkinawa Naha
17h 15m
1 stop
ONT5:05 pmOntario
$913
Find similar
STARLUX Airlines
Aug 8
ONT11:45 pmOntario
21h 10m
1 stop
NRT12:55 pmTokyo Narita
Sep 6
NRT2:10 pmTokyo Narita
18h 55m
1 stop
ONT5:05 pmOntario
$914
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 July 31, 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

Tue 8/26

6:00 am-4:00 pm

1 stop18h 00m

Tokyo Narita

Thu 9/25

6:25 pm-12:03 am

1 stop21h 38m

$713

OntarioTokyo

ONT - NRT

ONTNRT

Ontario

Mon 9/8

6:00 am-4:00 pm

1 stop18h 00m

Tokyo Narita

Tue 9/23

6:25 pm-6:47 pm

1 stop16h 22m

$721

OntarioSapporo

ONT - CTS

ONTCTS

Ontario

Sun 11/23

6:43 am-12:45 pm

2 stops37h 02m

Sapporo Chitose

Fri 11/28

2:00 pm-5:17 pm

2 stops20h 17m

$754

OntarioTokyo

ONT - HND

ONTHND

Ontario

Sun 8/17

6:00 am-2:15 pm

1 stop16h 15m

Tokyo Haneda

Tue 9/2

4:05 pm-10:50 am

1 stop34h 45m

$785

OntarioFukuoka

ONT - FUK

ONTFUK

Ontario

Tue 11/18

6:00 am-6:20 pm

2 stops19h 20m

Fukuoka

Tue 11/25

12:30 pm-10:45 pm

2 stops27h 15m

$859

OntarioOkinawa

ONT - OKA

ONTOKA

Ontario

Mon 1/19

10:50 pm-7:15 pm

1 stop27h 25m

Okinawa Naha

Tue 1/27

11:55 am-4:50 pm

1 stop21h 55m

$885

OntarioTokyo

ONT - HND

ONTHND

Ontario

Mon 9/1

11:59 pm-3:55 pm

1 stop23h 56m

Tokyo Haneda

Thu 9/18

4:30 pm-6:54 pm

1 stop18h 24m

$889

OntarioFukuoka

ONT - FUK

ONTFUK

Ontario

Sun 1/4

10:50 pm-5:30 pm

1 stop25h 40m

Fukuoka

Sat 1/17

8:35 pm-4:50 pm

1 stop37h 15m

$893

OntarioTokyo

ONT - HND

ONTHND

Ontario

Tue 9/9

1:10 pm-4:45 am

2 stops23h 35m

Tokyo Haneda

Thu 9/18

11:55 am-4:05 pm

2 stops20h 10m

$893

OntarioOsaka

ONT - KIX

ONTKIX

Ontario

Wed 8/20

6:00 am-2:50 pm

1 stop16h 50m

Osaka Kansai Intl

Tue 9/30

4:50 pm-5:40 pm

1 stop16h 50m

$914

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $810. If you aren’t able to travel to Japan during the month of February, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $827.

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 3% 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

Best Price Found

$377

Fastest flight time

14h 22m

Direct flights

None

Airports in Japan

7 airports
The best one-way flight to Japan from Ontario in the past 72 hours is $377. The best round-trip flight deal from Ontario to Japan found on momondo in the last 72 hours is $713.
The fastest flight from Ontario to Japan takes 14h 22m
There are no direct flights from Ontario to Japan. Popular non-direct routes for this connection are Ontario Airport - Tokyo Narita Airport, Ontario Airport - Tokyo Haneda Airport and Ontario Airport - Osaka Kansai Intl Airport.
There are 7 airports near Japan: Tokyo Narita (NRT), Sapporo Chitose (CTS), Okinawa Naha (OKA), Hiroshima (HIJ), Osaka Kansai Intl (KIX), Fukuoka (FUK), Tokyo Haneda (HND)
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
8,900 reviews
Search United Airlines flights
ANAPriceFrom $686Free CancellationRating
8.4
922 reviews
Search ANA flights
American AirlinesPriceFrom $712Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $895Free CancellationRating
8.0
7,981 reviews
Search Delta flights
China AirlinesPriceFrom $902Free CancellationRating
8.3
754 reviews
Search China Airlines flights
Hawaiian AirlinesPriceFrom $966Free CancellationRating
7.8
2,611 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.

An easier way to manage your Japan trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 8/5
Tue 8/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Japan

Popular cities in Japan

Popular flights according to clicks in the last 7 days on momondo
Flights to Tokyofrom $493
Flights to Osakafrom $499
Flights to Okinawafrom $489
Flights to Fukuokafrom $497
Flights to Nagoyafrom $532
Flights to Hiroshimafrom $596
Flights to Ishigakifrom $847
Flights to Kagoshimafrom $707
Flights to Nagasakifrom $849
Flights to Hakodatefrom $900
Flights to Toyamafrom $766
Flights to Miyakojimafrom $2,174