Cheap flights from Sydney to Koh Samui

One-way fares from $401 · SYD → USM · prices found by travellers in the last 48 hours

Cheapest fare
$401

Scoot · Fri, 22 Jan

Cheapest month
January

from $401

Direct flights
Not recently

Usually 1+ stop

Quickest trip
10h 10m

7,240 km

Get a price alert

We'll email you when Sydney → Koh Samui drops to your price. It's free, and you can stop any time.

Today's cheapest fare is $401. We'll send one email to confirm. See our privacy policy.

Cheapest month to fly from Sydney to Koh Samui

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. January 2027 Cheapest $401

Cheapest dates in January 2027

The lowest fares we've seen for each day, cheapest first.

Scoot
Depart20:05 Fri, 22 JanSYD → USM 10h 10m · 1 stop
$401one way, per person
View deal
Virgin Australia
Depart15:50 Fri, 1 JanSYD → USM 12h 30m · 3 stops
$987one way, per person
View deal
Batik Air Malaysia
Depart07:55 Sat, 2 JanSYD → USM 12h 10m · 3 stops
$1,106one way, per person
View deal
See every date in January 2027 →

Plan the rest of your trip to Koh Samui

Where to stay, what to do and getting around, from our travel partners.

About flights from Sydney to Koh Samui

Sydney (SYD) and Koh Samui (USM) are about 7,240 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 10h 10m. Over the next few months, one-way fares start from $401, and January 2027 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Sydney to Koh Samui?

The cheapest one-way fare we've seen recently is $401 with Scoot, departing Friday 22 January 2027.

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

January 2027 currently has the lowest fares, from $401 one way.

Are there direct flights from Sydney to Koh Samui?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Sydney to Koh Samui?

The quickest journey we've seen takes about 10h 10m. Sydney and Koh Samui are around 7,240 km apart.

Which airlines fly from Sydney to Koh Samui?

Recent fares on this route were with Scoot, Virgin Australia and Batik Air Malaysia.

More cheap flights from Sydney

Compare flights to Koh Samui from other cities →