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Flights to Ko Samui

Find cheap flights to Ko Samui in 2025/2026 from $485 This is the cheapest return flight found to Ko Samui from Australia on FlightsFinder on June 13th 2025 at 19:52. 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 Australia 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 Australia 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 November

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According to our data, November is on average the cheapest time to book flights to Ko Samui.
You can get flights from $485 return.

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

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The month of June

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According to our data, June is on average the most expensive time to book flights to Ko Samui.
A return flight could set you back more than $768.

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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Weather in Ko Samui

Clouds
Clouds

34 °C

Sun, 15 Jun 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

Sydney, Australia - Kingsford Smith Airport (SYD) to Ko Samui (USM)

Distance:
4,498 miles (7,240 kilometres)

Average flight time (direct 10 hours 29 minutes)

Brisbane, Australia - Brisbane International Airport (BNE) to Ko Samui (USM)

Distance:
4,371 miles (7,034 kilometres)

Average flight time (direct 10 hours 12 minutes)

Melbourne, Australia - All Airports (MEL) to Ko Samui (USM)

Distance:
4,359 miles (7,015 kilometres)

Average flight time (direct 10 hours 11 minutes)

Perth, Australia - Perth International Airport (PER) to Ko Samui (USM)

Distance:
3,053 miles (4,913 kilometres)

Average flight time (direct 7 hours 17 minutes)

Cairns, Australia - Cairns International Airport (CNS) to Ko Samui (USM)

Distance:
3,616 miles (5,820 kilometres)

Average flight time (direct 8 hours 32 minutes)

Adelaide, Australia - Adelaide International Airport (ADL) to Ko Samui (USM)

Distance:
3,970 miles (6,389 kilometres)

Average flight time (direct 9 hours 19 minutes)

Darwin, Australia - Darwin International Airport (DRW) to Ko Samui (USM)

Distance:
2,603 miles (4,190 kilometres)

Average flight time (direct 6 hours 17 minutes)

Gold Coast, Australia - Coolangatta Airport (OOL) to Ko Samui (USM)

Distance:
4,417 miles (7,108 kilometres)

Average flight time (direct 10 hours 18 minutes)

Townsville, Australia - Townsville International Airport (TSV) to Ko Samui (USM)

Distance:
3,751 miles (6,036 kilometres)

Average flight time (direct 8 hours 50 minutes)

Mount Isa, Australia - Mount Isa Airport (ISA) to Ko Samui (USM)

Distance:
3,395 miles (5,464 kilometres)

Average flight time (direct 8 hours 2 minutes)

Kununurra, Australia - Kununurra Airport (KNX) to Ko Samui (USM)

Distance:
2,627 miles (4,228 kilometres)

Average flight time (direct 6 hours 20 minutes)

Newcastle, Australia - Williamtown Metropolitan Area Airport (NTL) to Ko Samui (USM)

Distance:
4,489 miles (7,224 kilometres)

Average flight time (direct 10 hours 28 minutes)

Mackay, Australia - Mackay Airport (MKY) to Ko Samui (USM)

Distance:
3,951 miles (6,358 kilometres)

Average flight time (direct 9 hours 16 minutes)

Hobart, Australia - Hobart International Airport (HBA) to Ko Samui (USM)

Distance:
4,691 miles (7,550 kilometres)

Average flight time (direct 10 hours 55 minutes)

Launceston, Australia - Launceston Airport (LST) to Ko Samui (USM)

Distance:
4,624 miles (7,442 kilometres)

Average flight time (direct 10 hours 46 minutes)

Cloncurry, Australia - Cloncurry Airport (CNJ) to Ko Samui (USM)

Distance:
3,450 miles (5,552 kilometres)

Average flight time (direct 8 hours 10 minutes)

Paraburdoo, Australia - Paraburdoo Airport (PBO) to Ko Samui (USM)

Distance:
2,557 miles (4,116 kilometres)

Average flight time (direct 6 hours 10 minutes)

Karratha, Australia - Karratha Airport (KTA) to Ko Samui (USM)

Distance:
2,379 miles (3,829 kilometres)

Average flight time (direct 5 hours 47 minutes)

Kalgoorlie-Boulder, Australia - Kalgoorlie-Boulder Airport (KGI) to Ko Samui (USM)

Distance:
3,127 miles (5,033 kilometres)

Average flight time (direct 7 hours 26 minutes)

Learmonth, Australia - Learmonth Airport (LEA) to Ko Samui (USM)

Distance:
2,393 miles (3,851 kilometres)

Average flight time (direct 5 hours 49 minutes)

Port Macquarie, Australia - Port Macquarie Airport (PQQ) to Ko Samui (USM)

Distance:
4,493 miles (7,231 kilometres)

Average flight time (direct 10 hours 29 minutes)

Port Hedland, Australia - Port Hedland International Airport (PHE) to Ko Samui (USM)

Distance:
2,422 miles (3,898 kilometres)

Average flight time (direct 5 hours 52 minutes)

Canberra, Australia - Canberra Airport (CBR) to Ko Samui (USM)

Distance:
4,456 miles (7,171 kilometres)

Average flight time (direct 10 hours 24 minutes)

Map of Ko Samui

Travel Videos About Ko Samui

Cheapest flight routes found to Ko Samui

From Perth

From Perth (PER), Australia to Koh Samui, Thailand (USM): $485

Depart: 01 Nov 2025 · Return: 15 Nov 2025 Price found 13 Jun 2025, 19:52

From Melbourne

From Melbourne (MEL), Australia to Koh Samui, Thailand (USM): $611

Depart: 02 Nov 2025 · Return: 16 Nov 2025 Price found 13 Jun 2025, 10:32

From Sydney

From Sydney (SYD), Australia to Koh Samui, Thailand (USM): $618

Depart: 04 Nov 2025 · Return: 15 Nov 2025 Price found 13 Jun 2025, 02:42

From Brisbane

From Brisbane (BNE), Australia to Koh Samui, Thailand (USM): $746

Depart: 26 Aug 2025 · Return: 16 Sep 2025 Price found 14 Jun 2025, 10:11

From Darwin

From Darwin (DRW), Australia to Koh Samui, Thailand (USM): $773

Depart: 08 Nov 2025 · Return: 18 Nov 2025 Price found 11 Jun 2025, 17:39

From Gold Coast

From Gold Coast (OOL), Australia to Koh Samui, Thailand (USM): $822

Depart: 29 Jul 2025 · Return: 05 Aug 2025 Price found 14 Jun 2025, 13:45

From Adelaide

From Adelaide (ADL), Australia to Koh Samui, Thailand (USM): $831

Depart: 18 Aug 2025 · Return: 24 Aug 2025 Price found 12 Jun 2025, 11:00

From Hobart

From Hobart (HBA), Australia to Koh Samui, Thailand (USM): $897

Depart: 19 Aug 2025 · Return: 02 Sep 2025 Price found 13 Jun 2025, 16:21

From Cairns

From Cairns (CNS), Australia to Koh Samui, Thailand (USM): $919

Depart: 03 Sep 2025 · Return: 10 Sep 2025 Price found 13 Jun 2025, 06:25

From Launceston

From Launceston (LST), Australia to Koh Samui, Thailand (USM): $943

Depart: 15 Aug 2025 · Return: 22 Aug 2025 Price found 15 Jun 2025, 02:28

From Canberra

From Canberra (CBR), Australia to Koh Samui, Thailand (USM): $1,060

Depart: 29 Jul 2025 · Return: 05 Aug 2025 Price found 14 Jun 2025, 15:22

From Townsville

From Townsville (TSV), Australia to Koh Samui, Thailand (USM): $1,220

Depart: 30 Jul 2025 · Return: 06 Aug 2025 Price found 15 Jun 2025, 00:26

From Karratha

From Karratha (KTA), Australia to Koh Samui, Thailand (USM): $1,696

Depart: 17 Apr 2026 · Return: 01 May 2026 Price found 12 Jun 2025, 16:14