HEL - USM

฿16,098 Find Cheap Flights from Helsinki to Ko Samui – Compare and Save

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Everything you should know

Cheapest return flight
฿28,464
Typical prices: ฿39,445-฿49,695
Multiple Airlines
Fri 16/11Wed 21/11
HEL - USM • 3 stops
Cheapest one-way flight
฿16,098
Typical prices: ฿21,111-฿32,591
Multiple Airlines
Wed 28/2
HEL - USM • 3 stops
Direct flights
Not available
There are currently no direct flights between Helsinki and Ko Samui. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
13 weeks
in advance
Our data shows that travellers who book at least 13 weeks in advance save around 9% compared to booking last minute.
Insights
Insights
When to travel
May
Cheapest • 25% price drop
January
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Bangkok Suvarnabhumi (BKK)
Cheapest • Avg ฿50,447 (return)
Phuket City (HKT)
Shortest trip • 14h 47m (one-way)
Insights
Insights
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Ko Samui!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Helsinki to Ko Samui (HEL-USM)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Helsinki to Ko Samui

Mon 16 Nov - Sat 21 Nov
Multiple Airlines Logo
14:50 - 17:30HEL  Helsinki-Vantaa-USM Ko Samui
21h 40m3 stops Istanbul Sabiha Gokcen Kuwait City Phuket City
Multiple Airlines Logo
08:15 - 01:35USM  Ko Samui-HEL Helsinki-Vantaa
22h 20m3 stops Phuket City Stockholm Arlanda Kastrup Copenhagen
฿28,464Multiple Airlines
1 day ago
Mon 16 Nov - Sat 21 Nov
Multiple Airlines Logo
06:15 - 15:40HEL  Helsinki-Vantaa-USM Ko Samui
28h 25m3 stops Kastrup Copenhagen Abu Dhabi Zayed Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
18:05 - 18:55USM  Ko Samui-HEL Helsinki-Vantaa
29h 50m2 stops Singapore Changi Vienna Intl
฿28,664Multiple Airlines
1 day ago
Mon 5 Apr - Mon 19 Apr
Multiple Airlines Logo
17:05 - 16:55HEL  Helsinki-Vantaa-USM Ko Samui
19h 50m2 stops Doha Hamad Intl Phuket City
Multiple Airlines Logo
17:25 - 08:20USM  Ko Samui-HEL Helsinki-Vantaa
18h 55m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
฿29,197Multiple Airlines
3+ days ago
Mon 9 Nov - Fri 13 Nov
Multiple Airlines Logo
13:40 - 20:25HEL  Helsinki-Vantaa-USM Ko Samui
25h 45m3 stops Frankfurt am Main Muscat Seeb Bangkok Suvarnabhumi
Multiple Airlines Logo
07:00 - 10:35USM  Ko Samui-HEL Helsinki-Vantaa
32h 35m2 stops Bangkok Suvarnabhumi Kastrup Copenhagen
฿30,563Multiple Airlines
3+ days ago
Thu 26 Nov - Wed 2 Dec
Multiple Airlines Logo
08:50 - 17:30HEL  Helsinki-Vantaa-USM Ko Samui
27h 40m2 stops Doha Hamad Intl Phuket City
Multiple Airlines Logo
13:45 - 07:20USM  Ko Samui-HEL Helsinki-Vantaa
22h 35m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
฿30,897Multiple Airlines
6 hours ago
Thu 26 Nov - Tue 1 Dec
Qatar Airways Logo
08:50 - 18:25HEL  Helsinki-Vantaa-USM Ko Samui
28h 35m2 stops Doha Hamad Intl Phuket City
Qatar Airways Logo
20:20 - 13:35USM  Ko Samui-HEL Helsinki-Vantaa
22h 15m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
฿31,397Qatar Airways
12 hours ago
Thu 26 Nov - Wed 2 Dec
Multiple Airlines Logo
08:00 - 15:20HEL  Helsinki-Vantaa-USM Ko Samui
26h 20m3 stops Milan Malpensa Manama Bahrain Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
07:15 - 22:25USM  Ko Samui-HEL Helsinki-Vantaa
20h 10m2 stops Bangkok Suvarnabhumi Stockholm Arlanda
฿31,463Multiple Airlines
6 hours ago
Mon 1 Mar - Tue 16 Mar
Multiple Airlines Logo
15:05 - 08:10HEL  Helsinki-Vantaa-USM Ko Samui
36h 05m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
21:30 - 13:35USM  Ko Samui-HEL Helsinki-Vantaa
21h 05m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
฿31,563Multiple Airlines
3+ days ago
Thu 5 Nov - Mon 9 Nov
Multiple Airlines Logo
14:55 - 20:25HEL  Helsinki-Vantaa-USM Ko Samui
24h 30m3 stops Istanbul Sabiha Gokcen Sharjah Bangkok Suvarnabhumi
Multiple Airlines Logo
07:55 - 10:35USM  Ko Samui-HEL Helsinki-Vantaa
31h 40m2 stops Bangkok Suvarnabhumi Kastrup Copenhagen
฿31,597Multiple Airlines
14 hours ago
Mon 16 Nov - Sat 21 Nov
Qatar Airways Logo
15:05 - 15:40HEL  Helsinki-Vantaa-USM Ko Samui
19h 35m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Qatar Airways Logo
21:30 - 13:35USM  Ko Samui-HEL Helsinki-Vantaa
21h 05m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
฿31,763Qatar Airways
1 day ago
Booking Insights

Price, demand, and travel trends for Helsinki to Ko Samui flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from Helsinki to Ko Samui?

Based on deals KAYAK users found in the last 12 months, Friday is the cheapest day of the week to fly from Helsinki to Ko Samui. It’s 2% cheaper than the average day, while Saturday is the most expensive, with prices 7% higher.

What is the cheapest month to fly from Helsinki to Ko Samui?

•May is the cheapest month to fly from Helsinki to Ko Samui at ฿33,730 return.
•July (฿47,795) and March (฿47,295) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 41% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Helsinki to Ko Samui the cheapest?

Flights from Helsinki to Ko Samui are cheapest 13 weeks before departure. Booking in this window typically costs about 9% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Helsinki to Ko Samui flights

Low season

August

Cheapest flight

฿16,098
Beat the crowds with an average 79% drop in traveller numbers.
The most popular month to fly with an average 162% increase in traveller numbers.
One-way flight from Helsinki to Ko Samui

When to book flights from Helsinki to Ko Samui

Are your dates flexible? Find out the best times to travel from Helsinki to Ko Samui based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Helsinki to Ko Samui flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • How long is a flight from Helsinki to Ko Samui?

    A direct flight from Helsinki to Ko Samui takes 00m, covering 13,296 km.

  • Do I need a passport to fly from Helsinki to Ko Samui?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Helsinki to Ko Samui flight?

    Return flights from Helsinki to Ko Samui range from ฿39,445 to ฿49,695, with an average of ฿44,784 over the past 12 months. Anything below ฿39,445 counts as a good deal.

  • How expensive are last-minute Helsinki to Ko Samui flights?

    Last-minute fares on this route (booked within two weeks of departure) run 1% above the ฿44,784 route average. Book 13 weeks before departure for the lowest fares.

  • Have flight prices from Helsinki to Ko Samui changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about ฿28,464 to ฿192,045. That means the highest observed fare was about 7x higher than the lowest one.

  • How are flight prices from Helsinki to Ko Samui looking right now?

    One-way fares from Helsinki to Ko Samui are currently lower than usual. Average one-way flight prices are about ฿21,264, which is 19% below the typical average for this route.

  • Which car hire options are available at Ko Samui Airport (USM)?

    Ko Samui Airport (USM) hosts 5 major car rental companies, with daily rates starting from around ฿425 for economy cars. Top options include:

    • Drive Car Rental
    • Alamo
    • Sixt
    • Enterprise Rent-A-Car
    • Thai Rent

  • Which airports can I use when flying from Helsinki to Ko Samui?

    Flights from Helsinki to Ko Samui usually depart from Helsinki-Vantaa (HEL) and arrive at Ko Samui (USM).

  • Which airports do connecting flights from Helsinki to Ko Samui pass through?

    One-stop flights from Helsinki to Ko Samui most commonly connect through:

    • Bangkok Suvarnabhumi (BKK) – 98% of one-stop connections
    • Phuket City (HKT) – 1% of one-stop connections
    • Singapore Changi (SIN) – 1% of one-stop connections

  • Can I save money by using flexible dates for flights from Helsinki to Ko Samui?

    Yes. Flexible dates can save you up to 9% on flights from Helsinki to Ko Samui. Friday is the cheapest departure day at ฿44,029 return on average, while Saturday is the most expensive at ฿48,095, a difference of ฿4,066.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different stopover airport from Helsinki to Ko Samui?

    Flying via Phuket City (HKT) gives the shortest average 1-stop total travel time of 14h 47m, compared to 15h 26m via Bangkok Suvarnabhumi (BKK) and 25h 07m via Singapore Changi (SIN).

  • What is the time difference between Helsinki and Ko Samui?

    Ko Samui is 4 hours ahead of Helsinki (Indochina Time vs Eastern European Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Ko Samui?

    Some of the most popular sights in Ko Samui are Chaweng Beach, Lamai Beach, and Bophut Beach. These are among the most viewed places in Ko Samui on KAYAK.

Your guide to booking Helsinki to Ko Samui flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Friday departure and avoid flying on Saturday. On this route, Friday flights average ฿44,029, about ฿4,066 less than Saturday fares (8% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 13 weeks before you fly. On this route, that window historically saves about 9% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Helsinki to Ko Samui trip for May. Fares historically average ฿33,730 return in that month – typically ฿14,065 less than the most expensive month, which is July (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ko Samui Airport.

    • Ozo Chaweng Samui - Sha Extra Plus
    • Melia Koh Samui
    • Royal Muang Samui Villas

More options for your flight from Helsinki to Ko Samui

Complete your trip to Ko Samui with a hotel stay or car hire

Car rentals in Ko Samui
Hotels in Ko Samui