How long is the flight from Ko Samui to Japan?

Scoot can get you from Ko Samui to Japan in just under 14h 25m. Your travel time can differ by up to . The distance from Ko Samui to Japan is about 4942 km.

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.

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).

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.

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.

฿9,133+ Cheap Flights from Ko Samui to Japan

Cheap flight deals from Ko Samui to Japan

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 6 September 2026.

Mon 19/1008:40 -

1 stop14h 25m

Mon 2/1102:15 -

1 stop16h 55m

Deal found 3/9฿17,938

Mon 19/1008:40 -

1 stop20h 25m

Tue 3/1108:50 -

1 stop28h 05m

Deal found 3/9฿18,266

Tue 8/908:00 -

2 stops15h 00m

Thu 10/902:20 -

1 stop18h 30m

Deal found 4/9฿18,496

Thu 17/918:15 -

1 stop10h 50m

Tue 29/908:20 -

1 stop11h 00m

Deal found 1/9฿19,778

Mon 19/1007:50 -

2 stops15h 10m

Mon 2/1102:15 -

1 stop16h 55m

Deal found 3/9฿19,843

Thu 15/1018:15 -

1 stop10h 50m

Sun 25/1008:20 -

1 stop12h 30m

Deal found 1/9฿20,763

Thu 15/1011:05 -

1 stop12h 00m

Sat 24/1002:20 -

1 stop18h 30m

Deal found 1/9฿21,814

Thu 17/911:05 -

1 stop12h 00m

Mon 28/902:20 -

1 stop17h 00m

Deal found 2/9฿23,326

Find flight deals from Ko Samui to Japan

Round-trip from	฿17,938
One-way from	฿9,133
Popular in	March
Cheapest in	July
Average price	฿18,661

Scoot
19/10-2/11
2 total stops
31h 20m total
Ko Samui to Japan

Search Deals

Scoot
24/10-31/12
1 total stop
28h 40m total
Ko Samui to Japan

Search Deals

Highest demand for flights based on searches. 19% potential increase in price (฿164,245 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (฿26,631 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Ko SamuiTokyo

USM Ko Samui - HND Tokyo Haneda

USMHND

Ko Samui

Mon 5/10

08:40-01:05

1 stop14h 25m

Tokyo Haneda

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿11,334

Ko SamuiTokyo

USM Ko Samui - HND Tokyo Haneda

USMHND

Ko Samui

Thu 24/9

08:00-01:00

2 stops15h 00m

Tokyo Haneda

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿12,451

Ko SamuiTokyo

USM Ko Samui - NRT Tokyo Narita

USMNRT

Ko Samui

Sun 4/10

08:40-07:05

1 stop20h 25m

Tokyo Narita

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿13,141

Ko SamuiTokyo

USM Ko Samui - HND Tokyo Haneda

USMHND

Ko Samui

Sat 26/9

08:00-01:00

2 stops15h 00m

Tokyo Haneda

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿13,240

Ko SamuiTokyo

USM Ko Samui - HND Tokyo Haneda

USMHND

Ko Samui

Fri 9/10

19:00-01:00

2 stops28h 00m

Tokyo Haneda

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿13,470

Ko SamuiTokyo

USM Ko Samui - HND Tokyo Haneda

USMHND

Ko Samui

Sun 4/10

08:40-01:05

1 stop14h 25m

Tokyo Haneda

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿13,864

Ko SamuiTokyo

USM Ko Samui - HND Tokyo Haneda

USMHND

Ko Samui

Tue 5/1

12:15-13:35

2 stops23h 20m

Tokyo Haneda

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿14,521

Ko SamuiTokyo

USM Ko Samui - NRT Tokyo Narita

USMNRT

Ko Samui

Tue 5/1

12:15-13:15

2 stops23h 00m

Tokyo Narita

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿14,521

Ko SamuiTokyo

USM Ko Samui - NRT Tokyo Narita

USMNRT

Ko Samui

Mon 5/10

08:40-11:15

2 stops24h 35m

Tokyo Narita

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿15,014

Ko SamuiTokyo

USM Ko Samui - NRT Tokyo Narita

USMNRT

Ko Samui

Thu 24/9

19:45-13:00

2 stops15h 15m

Tokyo Narita

Wed 31/12

00:00-22:00

Nonstop0h 00m

฿15,310

Flights are sorted by cheapest return flights first.

Deals found on 2/9

Showing 1-10 of 27 resultsSorted by cheapest first

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.

USM-HND

USM-NRT

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

USM-JP0

USM-HND

USM-NRT

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.
How long is the flight from Ko Samui to Japan?
Scoot can get you from Ko Samui to Japan in just under 14h 25m. Your travel time can differ by up to . The distance from Ko Samui to Japan is about 4942 km.
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.

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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 ฿9,133

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/10. 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

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 6 September 2026.

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 6 September 2026.

Best flights from Ko Samui to JapanDiscover 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 6 September 2026.

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 6 September 2026.

Last-minute flights from Ko Samui to JapanDiscover last-minute flight deals from Ko Samui to Japan. Data last updated 6 September 2026 and is based on user searches.

Discover last-minute flight deals from Ko Samui to Japan. Data last updated 6 September 2026 and is based on user searches.

One-way flights from Ko Samui to JapanSearch for one-way flight options from Ko Samui to Japan. Find affordable one-way fares based on user searches. Data last updated 6 September 2026.

Search for one-way flight options from Ko Samui to Japan. Find affordable one-way fares based on user searches. Data last updated 6 September 2026.

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Best time to book a flight from Ko Samui to Japan

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Related info for your journey

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

How long is the flight 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?

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

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Complete your trip

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Search flights from Ko Samui to Japan by cabin class

Find flights from Ko Samui to Japan, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Ko Samui and Japan flights

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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 6 September 2026.

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 6 September 2026.

Last-minute flights from Ko Samui to Japan
Discover last-minute flight deals from Ko Samui to Japan. Data last updated 6 September 2026 and is based on user searches.

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 6 September 2026.