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Flights to Ko Samui

Find cheap flights to Ko Samui in 2025/2026 from €689 This is the cheapest return flight found to Ko Samui from Ireland on FlightsFinder on March 11th 2025 at 07:36. This offer may no longer be available. Click the offer to check live prices & dates of travel.

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Our Flight Finder compares the cheapest flights to Ko Samui from the most established flight comparison sites.
Fly to Ko Samui and visit sites like Chaweng Beach, Lamai Beach, Maenam Beach & Bo Phut Beach.

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What are the cheapest return flights to Ko Samui in 2025/2026?

These economy flights were found on FlightsFinder from Ireland to Ko Samui in the last few days. Prices subject to availability.

What are the cheapest one-way flights to Ko Samui in 2025/2026?

These economy flights were found on FlightsFinder from Ireland to Ko Samui in the last few days. Prices subject to availability.

When are flights to Ko Samui cheapest?

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The month of May

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According to our data, May is on average the cheapest time to book flights to Ko Samui.
You can get flights from €689 return.

When is the most expensive time to fly to Ko Samui?

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The month of February

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According to our data, February is on average the most expensive time to book flights to Ko Samui.
A return flight could set you back more than €967.

Why fly to Ko Samui?

Ko Samui, an idyllic island paradise nestled in the Gulf of Thailand, captures the hearts of visitors with its pristine white sandy beaches, crystal-clear turquoise waters, and lush tropical landscapes. This enchanting destination offers a perfect blend of serenity and vibrant energy, making it a haven for relaxation and adventure seekers alike. Explore picturesque fishing villages, indulge in sumptuous local cuisine, or snorkel in the vibrant coral reefs teeming with marine life. Whether you seek tranquillity under swaying palm trees or excitement in bustling markets, Ko Samui promises an unforgettable journey of discovery and relaxation.

Frequently asked questions about Flights to Ko Samui

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What is the weather like in Ko Samui?

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Which day is cheapest to fly to Ko Samui?

Weather in Ko Samui

Clouds
Clouds

28.3 °C

Fri, 14 Mar 2025

Average Temperature

29°C

Jan

29°C

Feb

31°C

Mar

32°C

Apr

33°C

May

33°C

Jun

32°C

Jul

32°C

Aug

32°C

Sep

31°C

Oct

30°C

Nov

29°C

Dec

Ko Samui

Flight Distance and Flying Time to Ko Samui

Dublin, Ireland - Dublin International Airport (DUB) to Ko Samui (USM)

Distance:
6,345 miles (10,212 kilometres)

Average flight time (direct 14 hours 36 minutes)

Shannon, Ireland - Shannon International Airport (SNN) to Ko Samui (USM)

Distance:
6,466 miles (10,406 kilometres)

Average flight time (direct 14 hours 52 minutes)

Knock, Ireland - Ireland West Airport (NOC) to Ko Samui (USM)

Distance:
6,432 miles (10,351 kilometres)

Average flight time (direct 14 hours 47 minutes)

Cork, Ireland - Cork International Airport (ORK) to Ko Samui (USM)

Distance:
6,470 miles (10,412 kilometres)

Average flight time (direct 14 hours 52 minutes)

Kerry, Ireland - Kerry Airport (KIR) to Ko Samui (USM)

Distance:
6,502 miles (10,465 kilometres)

Average flight time (direct 14 hours 56 minutes)

Donegal, Ireland - Donegal Airport (CFN) to Ko Samui (USM)

Distance:
6,386 miles (10,278 kilometres)

Average flight time (direct 14 hours 41 minutes)

Waterford, Ireland - Waterford Airport (WAT) to Ko Samui (USM)

Distance:
6,405 miles (10,309 kilometres)

Average flight time (direct 14 hours 44 minutes)

Map of Ko Samui

Travel Videos About Ko Samui

Cheapest flight routes found to Ko Samui

From Dublin

From Dublin (DUB), Ireland to Koh Samui, Thailand (USM): €689

Depart: 19 May 2025 · Return: 29 May 2025 Price found 11 Mar 2025, 07:36

From Cork

From Cork (ORK), Ireland to Koh Samui, Thailand (USM): €870

Depart: 16 Jun 2025 · Return: 23 Jun 2025 Price found 13 Mar 2025, 16:54

From Shannon

From Shannon (SNN), Ireland to Koh Samui, Thailand (USM): €1,087

Depart: 11 Jun 2025 · Return: 26 Jun 2025 Price found 10 Mar 2025, 22:37

From Knock

From Knock (NOC), Ireland to Koh Samui, Thailand (USM): €1,269

Depart: 28 Mar 2025 · Return: 01 Apr 2025 Price found 12 Mar 2025, 16:49