What is the cheapest airline that flies from Ontario to Japan?

STARLUX Airlines, Alaska Airlines, and Delta are the most popular carriers operating from Ontario to Japan

What airlines fly to Japan?

ANA, Japan Airlines and Singapore Airlines are the top three most popular airlines that fly to Japan from Ontario according to our data. ANA is the first choice among our users, with 37% of people opting to fly with this airline when traveling to Japan. Keep in mind that there are 21 different airlines that fly to Japan on a routine basis, so you have a few additional options to choose from.

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?

As of September 2026, there are 4 operators available to choose from 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.

$389 Cheap Flights from Ontario to Japan in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Japan

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:45 pm - 2:20 pmONT Ontario-NRT Tokyo Narita

23h 35m1 stop Taipei City Taiwan Taoyuan Intl

8:10 pm - 3:55 pmNRT Tokyo Narita-ONT Ontario

36h 45m1 stop Taipei City Taiwan Taoyuan Intl

$749STARLUX Airlines

Fri, Jan 22 - Sun, Jan 24

9:45 pm - 12:35 pmONT Ontario-NRT Tokyo Narita

21h 50m1 stop Taipei City Taiwan Taoyuan Intl

8:10 pm - 3:55 pmNRT Tokyo Narita-ONT Ontario

36h 45m1 stop Taipei City Taiwan Taoyuan Intl

$757STARLUX Airlines

Fri, Feb 5 - Sun, Feb 14

10:50 pm - 1:20 pmONT Ontario-KIX Osaka Kansai Intl

21h 30m1 stop Taipei City Taiwan Taoyuan Intl

2:30 pm - 6:05 pmKIX Osaka Kansai Intl-ONT Ontario

19h 35m1 stop Taipei City Taiwan Taoyuan Intl

$921China Airlines

Wed, Mar 3 - Tue, Mar 16

10:50 pm - 11:35 amONT Ontario-KIX Osaka Kansai Intl

19h 45m1 stop Taipei City Taiwan Taoyuan Intl

12:45 pm - 5:05 pmKIX Osaka Kansai Intl-ONT Ontario

21h 20m1 stop Taipei City Taiwan Taoyuan Intl

$921China Airlines

Fri, Feb 5 - Fri, Feb 19

6:00 am - 2:20 pmONT Ontario-HND Tokyo Haneda

16h 20m1 stop Seattle/Tacoma Intl

4:20 pm - 5:12 pmHND Tokyo Haneda-ONT Ontario

16h 52m1 stop Seattle/Tacoma Intl

$966Delta

Tue, Sep 29 - Tue, Oct 13

6:15 am - 7:45 pmONT Ontario-HND Tokyo Haneda

21h 30m2 stops Phoenix Sky Harbor Intl Honolulu

11:55 am - 3:24 pmHND Tokyo Haneda-ONT Ontario

19h 29m2 stops Los Angeles Phoenix Sky Harbor Intl

$969American Airlines

Tue, Sep 29 - Tue, Oct 13

1:04 pm - 4:45 amONT Ontario-HND Tokyo Haneda

23h 41m2 stops Phoenix Sky Harbor Intl Los Angeles

11:55 am - 3:24 pmHND Tokyo Haneda-ONT Ontario

19h 29m2 stops Los Angeles Phoenix Sky Harbor Intl

$969American Airlines

Tue, Sep 29 - Tue, Oct 13

6:00 am - 2:20 pmONT Ontario-HND Tokyo Haneda

16h 20m1 stop Seattle/Tacoma Intl

4:20 pm - 8:55 amHND Tokyo Haneda-ONT Ontario

32h 35m2 stops Seattle/Tacoma Intl Salt Lake City

$971Delta

Tue, Sep 29 - Tue, Oct 13

5:00 am - 7:00 pmONT Ontario-HND Tokyo Haneda

22h 00m2 stops Denver Intl Seattle/Tacoma Intl

3:50 pm - 5:41 pmHND Tokyo Haneda-ONT Ontario

17h 51m1 stop San Francisco

$1,034United Airlines

Tue, Sep 29 - Tue, Oct 13

5:00 am - 7:00 pmONT Ontario-HND Tokyo Haneda

22h 00m2 stops Denver Intl Seattle/Tacoma Intl

10:55 pm - 12:46 pmHND Tokyo Haneda-ONT Ontario

29h 51m2 stops San Francisco Denver Intl

$1,034United Airlines

Tue, Sep 29 - Tue, Oct 13

Cheap last minute flights

Enter your travel dates to find the best prices.

6:15 am - 4:45 pmONT Ontario-NRT Tokyo Narita

18h 30m2 stops Phoenix Sky Harbor Intl San Diego

6:30 pm - 8:09 pmNRT Tokyo Narita-ONT Ontario

17h 39m1 stop Dallas/Fort Worth

$906American Airlines

Fri, Sep 18 - Fri, Sep 25

6:15 am - 3:50 pmONT Ontario-HND Tokyo Haneda

17h 35m2 stops Phoenix Sky Harbor Intl Los Angeles

4:30 pm - 11:52 pmHND Tokyo Haneda-ONT Ontario

23h 22m1 stop Dallas/Fort Worth

$913American Airlines

Sun, Sep 20 - Mon, Oct 5

6:08 am - 1:55 pmONT Ontario-HND Tokyo Haneda

15h 47m1 stop San Francisco

10:55 pm - 8:31 pmHND Tokyo Haneda-ONT Ontario

13h 36m1 stop San Francisco

$936United Airlines

Sun, Sep 20 - Fri, Oct 2

6:08 am - 1:55 pmONT Ontario-HND Tokyo Haneda

15h 47m1 stop San Francisco

10:55 pm - 8:31 pmHND Tokyo Haneda-ONT Ontario

13h 36m1 stop San Francisco

$936United Airlines

Sun, Sep 20 - Fri, Oct 2

12:10 am - 12:00 pmONT Ontario-KIX Osaka Kansai Intl

19h 50m1 stop Taipei City Taiwan Taoyuan Intl

2:00 pm - 6:00 pmKIX Osaka Kansai Intl-ONT Ontario

20h 00m1 stop Taipei City Taiwan Taoyuan Intl

$981China Airlines

Fri, Sep 18 - Sat, Sep 26

12:10 am - 9:55 amONT Ontario-FUK Fukuoka

17h 45m1 stop Taipei City Taiwan Taoyuan Intl

11:00 am - 6:00 pmFUK Fukuoka-ONT Ontario

23h 00m1 stop Taipei City Taiwan Taoyuan Intl

$985China Airlines

Sat, Sep 19 - Tue, Sep 22

11:30 pm - 12:15 pmONT Ontario-KIX Osaka Kansai Intl

20h 45m1 stop Taipei City Taiwan Taoyuan Intl

3:10 pm - 5:05 pmKIX Osaka Kansai Intl-ONT Ontario

17h 55m1 stop Taipei City Taiwan Taoyuan Intl

$1,025STARLUX Airlines

Mon, Sep 21 - Wed, Sep 23

11:30 pm - 2:40 pmONT Ontario-OKA Okinawa Naha

23h 10m1 stop Taipei City Taiwan Taoyuan Intl

3:50 pm - 5:05 pmOKA Okinawa Naha-ONT Ontario

17h 15m1 stop Taipei City Taiwan Taoyuan Intl

$1,039STARLUX Airlines

Fri, Sep 18 - Fri, Sep 25

6:00 am - 2:20 pmONT Ontario-HND Tokyo Haneda

16h 20m1 stop Seattle/Tacoma Intl

4:20 pm - 5:19 pmHND Tokyo Haneda-ONT Ontario

16h 59m1 stop Seattle/Tacoma Intl

$1,210Delta

Thu, Sep 24 - Sat, Sep 26

6:00 am - 2:20 pmONT Ontario-HND Tokyo Haneda

16h 20m1 stop Seattle/Tacoma Intl

4:20 pm - 10:04 pmHND Tokyo Haneda-ONT Ontario

21h 44m2 stops Seattle/Tacoma Intl Salt Lake City

$1,215Delta

Thu, Sep 24 - Sat, Sep 26

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STARLUX Airlines flights from Ontario to Japan

Our best STARLUX Airlines deals on Ontario to Japan flight tickets

STARLUX Airlines

Jan 22

ONT9:45 pmOntario

23h 35m

1 stop

NRT2:20 pmTokyo Narita

Jan 24

NRT8:10 pmTokyo Narita

36h 45m

1 stop

ONT3:55 pmOntario

$749

STARLUX Airlines

Jan 9

ONT9:45 pmOntario

28h 15m

1 stop

NRT7:00 pmTokyo Narita

Jan 18

NRT1:45 pmTokyo Narita

19h 10m

1 stop

ONT3:55 pmOntario

$757

STARLUX Airlines

Mar 1

ONT9:45 pmOntario

21h 50m

1 stop

NRT12:35 pmTokyo Narita

Mar 16

NRT3:40 pmTokyo Narita

17h 15m

1 stop

ONT4:55 pmOntario

$760

China Airlines flights from Ontario to Japan

Our best China Airlines deals on Ontario to Japan flight tickets

China Airlines

Feb 23

ONT10:50 pmOntario

26h 40m

1 stop

NRT6:30 pmTokyo Narita

Mar 11

NRT7:30 pmTokyo Narita

38h 35m

1 stop

ONT5:05 pmOntario

$904

China Airlines

Mar 4

ONT10:50 pmOntario

21h 40m

1 stop

NRT1:30 pmTokyo Narita

Mar 16

NRT7:30 pmTokyo Narita

38h 35m

1 stop

ONT6:05 pmOntario

$908

China Airlines

Feb 18

ONT10:50 pmOntario

26h 40m

1 stop

NRT6:30 pmTokyo Narita

Mar 4

NRT2:35 pmTokyo Narita

19h 30m

1 stop

ONT5:05 pmOntario

$917

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioTokyo

ONT Ontario - NRT Tokyo Narita

ONTNRT

Ontario

Fri 1/22

9:45 pm-2:20 pm

1 stop23h 35m

Tokyo Narita

Sun 1/24

8:10 pm-3:55 pm

1 stop36h 45m

$749

OntarioTokyo

ONT Ontario - NRT Tokyo Narita

ONTNRT

Ontario

Fri 2/5

9:45 pm-12:35 pm

1 stop21h 50m

Tokyo Narita

Sun 2/14

8:10 pm-3:55 pm

1 stop36h 45m

$757

OntarioOsaka

ONT Ontario - KIX Osaka Kansai Intl

ONTKIX

Ontario

Wed 3/3

10:50 pm-1:20 pm

1 stop21h 30m

Osaka Kansai Intl

Tue 3/16

2:30 pm-6:05 pm

1 stop19h 35m

$921

OntarioOsaka

ONT Ontario - KIX Osaka Kansai Intl

ONTKIX

Ontario

Fri 2/5

10:50 pm-11:35 am

1 stop19h 45m

Osaka Kansai Intl

Fri 2/19

12:45 pm-5:05 pm

1 stop21h 20m

$921

Quickest round-trip

OntarioTokyo

ONT Ontario - HND Tokyo Haneda

ONTHND

Ontario

Tue 9/29

6:00 am-2:20 pm

1 stop16h 20m

Tokyo Haneda

Tue 10/13

4:20 pm-5:12 pm

1 stop16h 52m

$966

OntarioTokyo

ONT Ontario - HND Tokyo Haneda

ONTHND

Ontario

Tue 9/29

6:15 am-7:45 pm

2 stops21h 30m

Tokyo Haneda

Tue 10/13

11:55 am-3:24 pm

2 stops19h 29m

$969

OntarioTokyo

ONT Ontario - HND Tokyo Haneda

ONTHND

Ontario

Tue 9/29

1:04 pm-4:45 am

2 stops23h 41m

Tokyo Haneda

Tue 10/13

11:55 am-3:24 pm

2 stops19h 29m

$969

OntarioTokyo

ONT Ontario - HND Tokyo Haneda

ONTHND

Ontario

Tue 9/29

6:00 am-2:20 pm

1 stop16h 20m

Tokyo Haneda

Tue 10/13

4:20 pm-8:55 am

2 stops32h 35m

$971

OntarioTokyo

ONT Ontario - HND Tokyo Haneda

ONTHND

Ontario

Tue 9/29

5:00 am-7:00 pm

2 stops22h 00m

Tokyo Haneda

Tue 10/13

3:50 pm-5:41 pm

1 stop17h 51m

$1,034

OntarioTokyo

ONT Ontario - HND Tokyo Haneda

ONTHND

Ontario

Tue 9/29

5:00 am-7:00 pm

2 stops22h 00m

Tokyo Haneda

Tue 10/13

10:55 pm-12:46 pm

2 stops29h 51m

$1,034

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to Japan?

The month of August is, on average, the cheapest month to fly to Japan from Ontario, with most prices found around $779. If you aren’t able to travel to Japan during the month of August, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $871.

Can stopping save me money on Ontario to Japan flights?

You could potentially save up to 20% 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	$389
Fastest flight time	13h 59m
Direct flights	None

The best one-way flight to Japan from Ontario in the past 72 hours is $389. The best round-trip flight deal from Ontario to Japan found on momondo in the last 72 hours is $749.

The fastest flight from Ontario to Japan takes 13h 59m

There are no direct flights from Ontario to Japan. There are no popular flight routes from Ontario to Japan.

Search flight deals

Frequently asked questions about flying from Ontario to Japan

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?
As of September 2026, there are 4 operators available to choose from 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
China Airlines	PriceFrom $632	Free Cancellation	Rating 8.3 847 reviews	Search China Airlines flights
American Airlines	PriceFrom $783	Free Cancellation	Rating 7.1 12,080 reviews	Search American Airlines flights
United Airlines	PriceFrom $829	Free Cancellation	Rating 7.4 10,223 reviews	Search United Airlines flights
Delta	PriceFrom $1,161	Free Cancellation	Rating 7.8 8,587 reviews	Search Delta 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.