What is the cheapest month to book a flight from Ko Samui to Japan?

Currently, September is the cheapest month in which you can book a flight from Ko Samui to Japan (average of ฿197). Flying from Ko Samui to Japan in December is currently the most expensive (average of ฿387). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options. Find deals

In terms of precipitation, rainfall in Japan ranges from 50.0 - 210.0 inches per month. September is typically the wettest month, when rainfall can reach 210.0 mm. January is typically the driest time to visit Japan when rainfall is around 50.0 mm. Find deals

If weather is an important factor for your trip to Japan, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 6.0 C). Find deals

What is the cheapest time of day to fly from USM to JP?

When flying from Ko Samui to Japan, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets. Find deals

What airport do you fly from for flights from Ko Samui to Japan?

Located just 3.3 km from the city centre, Ko Samui (USM) is the airport most travellers will use when flying to Japan from Ko Samui.

Can I find deals for flights from Ko Samui to Japan that include hotel bookings?

Yes. In addition to deals on Ko Samui to Japan flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Ko Samui to Japan?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ko Samui to Japan.

Can I find deals for business class flights from Ko Samui to Japan?

Yes. Cheapflights offers flight deals from Ko Samui to Japan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

฿9,542+ Flights from Ko Samui to Japan

Cheap flight deals from Ko Samui to Japan

Round-trip from	฿15,661
One-way from	฿9,542

1/11-8/11
2 total stops
52h 30m total
Ko Samui to Japan

Search Deals

28/9
1 total stop
25h 50m total
Ko Samui to Japan

Search Deals

Find flight deals from Ko Samui to Japan

Cheapest flights from Ko Samui to Japan
Explore the most affordable flight options available from Ko Samui to Japan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Sat 1/1111:40USM - NRT

1 stop25h 30mMultiple Airlines

Sat 8/1118:35NRT - USM

1 stop27h 00mMultiple Airlines

Deal found 16/9฿15,661

Sat 1/1108:30USM - HND

2 stops38h 35mMultiple Airlines

Fri 7/1102:30HND - USM

2 stops30h 40mMultiple Airlines

Deal found 16/9฿16,960

Best flights from Ko Samui to Japan
Discover carefully curated flight deals from Ko Samui to Japan that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 17 September 2025.

Sat 1/1111:40USM - NRT

1 stop25h 30mMultiple Airlines

Sat 8/1118:35NRT - USM

1 stop27h 00mMultiple Airlines

Deal found 16/9฿15,661

Sat 1/1108:30USM - HND

2 stops38h 35mMultiple Airlines

Fri 7/1102:30HND - USM

2 stops30h 40mMultiple Airlines

Deal found 16/9฿16,960

One-way flights from Ko Samui to Japan
Search for one-way flight options from Ko Samui to Japan. Find affordable one-way fares based on user searches. Data last updated 17 September 2025.

Sun 28/906:55USM - NRT

1 stop25h 50mMultiple Airlines

Deal found 15/9฿9,542

Mon 29/912:10USM - NRT

2 stops17h 50mMultiple Airlines

Deal found 15/9฿9,637

Thu 8/111:10USM - NRT

2 stops24h 15mMultiple Airlines

Deal found 16/9฿10,747

Wed 7/119:00USM - NRT

3 stops22h 20mMultiple Airlines

Deal found 16/9฿10,905

Wed 7/108:15USM - HND

2 stops12h 30mMultiple Airlines

Deal found 16/9฿11,159

Mon 29/908:00USM - HND

2 stops15h 00mMultiple Airlines

Deal found 15/9฿11,191

Fri 9/108:15USM - NRT

2 stops20h 40mMultiple Airlines

Deal found 16/9฿11,191

Fri 9/108:15USM - HND

2 stops14h 30mMultiple Airlines

Deal found 16/9฿11,222

Thu 8/108:15USM - HND

2 stops12h 30mMultiple Airlines

Deal found 16/9฿11,286

Tue 6/108:15USM - HND

2 stops14h 30mMultiple Airlines

Deal found 16/9฿11,571

Tue 6/108:15USM - NRT

2 stops20h 40mMultiple Airlines

Deal found 16/9฿11,603

Sat 10/118:15USM - NRT

3 stops18h 00mMultiple Airlines

Deal found 16/9฿11,635

Fly from

Fly to

Route

Depart

Return

Price

Ko SamuiTokyo

USM - NRT

USMNRT

Ko Samui

Sat 1/11

11:40-15:10

1 stop25h 30m

Tokyo Narita

Sat 8/11

18:35-19:35

1 stop27h 00m

฿15,661

Ko SamuiTokyo

USM - HND

USMHND

Ko Samui

Sat 1/11

08:30-01:05

2 stops38h 35m

Tokyo Haneda

Fri 7/11

02:30-07:10

2 stops30h 40m

฿16,960

Ko SamuiTokyo

USM - NRT

USMNRT

Ko Samui

Sun 28/9

06:55-10:45

1 stop25h 50m

฿9,542

Ko SamuiTokyo

USM - NRT

USMNRT

Ko Samui

Mon 29/9

12:10-08:00

2 stops17h 50m

฿9,637

Ko SamuiTokyo

USM - NRT

USMNRT

Ko Samui

Wed 7/1

19:00-19:20

3 stops22h 20m

฿10,905

Ko SamuiTokyo

USM - HND

USMHND

Ko Samui

Wed 7/1

08:15-22:45

2 stops12h 30m

฿11,159

Ko SamuiTokyo

USM - HND

USMHND

Ko Samui

Mon 29/9

08:00-01:00

2 stops15h 00m

฿11,191

Ko SamuiTokyo

USM - NRT

USMNRT

Ko Samui

Sat 10/1

08:15-06:55

2 stops20h 40m

฿11,191

Ko SamuiTokyo

USM - NRT

USMNRT

Ko Samui

Fri 9/1

08:15-06:55

2 stops20h 40m

฿11,191

Ko SamuiTokyo

USM - HND

USMHND

Ko Samui

Fri 9/1

08:15-00:45

2 stops14h 30m

฿11,222

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 17 results

Best time to book a flight from Ko Samui to Japan

Have a flexible travel schedule? Discover the best time to fly to Japan from Ko Samui with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ko Samui to Japan

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly from for flights from Ko Samui to Japan?
Located just 3.3 km from the city centre, Ko Samui (USM) is the airport most travellers will use when flying to Japan from Ko Samui.
Can I find deals for flights from Ko Samui to Japan that include hotel bookings?
Yes. In addition to deals on Ko Samui to Japan flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Ko Samui to Japan?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ko Samui to Japan.
Can I find deals for business class flights from Ko Samui to Japan?
Yes. Cheapflights offers flight deals from Ko Samui to Japan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Ko Samui to Japan?
Currently, September is the cheapest month in which you can book a flight from Ko Samui to Japan (average of ฿197). Flying from Ko Samui to Japan in December is currently the most expensive (average of ฿387). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Ko Samui to Japan. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Ko Samui to Japan?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Japan from Ko Samui.

Can Cheapflights find flights from Ko Samui to Japan with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Ko Samui to Japan, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Ko Samui to Japan become cheaper?

Of course! You can now track prices for flights from Ko Samui to Japan and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from Ko Samui to Japan from ฿9,542

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ko Samui to Japan

Keep the following information in mind while searching for Ko Samui to Japan flight deals. Data was last updated 17 September 2025.

Round-trip from

One-way from

Find flight deals from Ko Samui to Japan

Cheapest flights from Ko Samui to JapanExplore the most affordable flight options available from Ko Samui to Japan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Explore the most affordable flight options available from Ko Samui to Japan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Ko Samui to Japan that are best for you.

Best time to book a flight from Ko Samui to Japan

Have a flexible travel schedule? Discover the best time to fly to Japan from Ko Samui with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Ko Samui to Japan

Related info for your journey

Find useful and relevant information for your journey from Ko Samui to Japan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Ko Samui to Japan?

Can I find deals for flights from Ko Samui to Japan that include hotel bookings?

How can I find direct flights from Ko Samui to Japan?

Can I find deals for business class flights from Ko Samui to Japan?

What is the cheapest month to book a flight from Ko Samui to Japan?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ko Samui to Japan

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

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How does Cheapflights help users find flights from Ko Samui to Japan?

Why should you use Cheapflights to find cheap flight tickets from Ko Samui to Japan?

Can Cheapflights find flights from Ko Samui to Japan with no change fees?

Can Cheapflights notify me if prices for flights from Ko Samui to Japan become cheaper?

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Cheapest flights from Ko Samui to Japan
Explore the most affordable flight options available from Ko Samui to Japan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 17 September 2025.