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Cheap Flights from Sydney to Koh Samui

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Reverse direction: USM to SYD

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TR Return flights from $898
Dep. Wed 21 OctRet. Thu 29 Oct$898
Dep. Wed 24 JunRet. Mon 06 Jul$1,934
OD,TR Return flights from $1,219
Dep. Wed 21 OctRet. Thu 29 Oct$1,219
MF,PG,TR Return flights from $1,334
Dep. Wed 21 OctRet. Thu 29 Oct$1,334
Dep. Wed 24 JunRet. Mon 06 Jul$2,514
TR,VN Return flights from $1,407
Dep. Wed 21 OctRet. Thu 29 Oct$1,407
PG,TR Return flights from $1,418
Dep. Wed 21 OctRet. Thu 29 Oct$1,418
Dep. Wed 24 JunRet. Mon 06 Jul$1,812
MH,PG,TR Return flights from $1,446
Dep. Wed 21 OctRet. Thu 29 Oct$1,446
Dep. Wed 24 JunRet. Mon 06 Jul$2,433
SQ,TR Return flights from $1,549
Dep. Wed 21 OctRet. Thu 29 Oct$1,549
Dep. Wed 24 JunRet. Mon 06 Jul$2,875
PG,TR,VN Return flights from $1,583
Dep. Wed 21 OctRet. Thu 29 Oct$1,583
MH,PG Return flights from $1,587
Dep. Wed 21 OctRet. Thu 29 Oct$1,587
Dep. Wed 24 JunRet. Mon 06 Jul$2,222
PG,VJ Return flights from $1,596
Dep. Wed 24 JunRet. Mon 06 Jul$1,596
PG,QF Return flights from $1,602
Dep. Wed 21 OctRet. Thu 29 Oct$1,602
Dep. Wed 24 JunRet. Mon 06 Jul$2,384
QF Return flights from $1,602
Dep. Wed 21 OctRet. Thu 29 Oct$1,602
Dep. Wed 24 JunRet. Mon 06 Jul$3,766
JQ,PG,VJ Return flights from $1,607
Dep. Wed 24 JunRet. Mon 06 Jul$1,607
PG,QF,TR Return flights from $1,618
Dep. Wed 21 OctRet. Thu 29 Oct$1,618
Dep. Wed 24 JunRet. Mon 06 Jul$2,421
QF,TR Return flights from $1,618
Dep. Wed 21 OctRet. Thu 29 Oct$1,618
Dep. Wed 24 JunRet. Mon 06 Jul$2,919

Prices are from searches made in the last 24 hours and current prices may differ.

Do you need to catch a flight to Sydney? Check out our domestic flights to Sydney. If Sydney is not your closest airport, then here are all our flights to Koh Samui from New Zealand and flights to Thailand. Maybe a different destination? Here are all the flights from Sydney


Average Sydney to Koh Samui Return Prices

These are the average prices for Sydney to Koh Samui return airfares.

December 2025
$3,977
January 2026
$3,190
February 2026
$2,018
March 2026
$1,758
April 2026
$2,217
May 2026
$1,695
June 2026
$1,890
July 2026
$1,919
August 2026
$1,708

Did you know...

  • The closest train station to Sydney airport is Sydney International Airport Station.
  • The distance between Sydney and Koh Samui is 7,238 kilometres.
  • SYD is the International Air Transport Association (IATA) airport code for Sydney.
  • Koh Samui is 3 hours later than Sydney.

Questions and Answers

What is the cheapest month to fly to Koh Samui from Sydney?

At the moment, March/2026 is the cheapest time of year to take a flight to Koh Samui from Sydney.

What airlines fly direct to Koh Samui from Sydney?

No airlines have non-stop flights to Koh Samui from Sydney.

What is the cheapest airline to fly from Sydney to Koh Samui?

The cheapest airline that flies from Sydney to Koh Samui is Scoot.

What is the best airline to fly to Koh Samui from Sydney?

Singapore Airlines is the best airline to fly to Koh Samui from Sydney. Scoot is the best low-cost airline.

How to get from Sydney to Koh Samui
Sydney (SYD)
 to 
Singapore (SIN)
8h 20m
Layover - 1h 15m
Singapore (SIN)
 to 
Koh Samui (USM)
1h 45m
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