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Cheap flights from Singapore to Koh Samui from $186 SIN → USM

Changi International Airport (SIN) → Koh Samui Airport (USM)

The cheapest return found recently is $273 with Scoot, 23 Nov – 30 Nov, found yesterday. The cheapest one-way found recently is $186 with Scoot, 17 Aug 2027, found 3 days ago.

Cheapest one-way found recently
$186, Scoot, found 3 days ago
Cheapest return found recently
$273, 23 Nov to 30 Nov
Usual return price
$363 to $456
Cheapest month to fly
November 2026, return fares from $273 found in the last 7 days
Airlines with nonstop flights
Scoot, Bangkok Airways
Shortest nonstop flight found
1 h 45 min

Return

The cheapest return fare on each of 30 departure dates is usually $363 to $456.

Cheapest return found recently

$273

23 Nov – 30 Nov · Scoot

Changi International Airport (SIN) → Koh Samui Airport (USM)

Leaves 7:00 a.m. · Return leaves 8:55 a.m. · 3 h 50 min of travel, both ways together

out nonstop, back nonstop

found yesterday

See prices for these datesCheck today's price

Cheapest nonstop return

$273

23 Nov – 30 Nov · Scoot

Changi International Airport (SIN) → Koh Samui Airport (USM)

Leaves 7:00 a.m. · Return leaves 8:55 a.m. · 3 h 50 min of travel, both ways together

out nonstop, back nonstop

found yesterday

See prices for these datesCheck today's price

FareTell may earn a commission when you book through a partner.

Found recently, and the cheapest we hold

Cheapest found recently $273 23 Nov – 30 Novfound yesterdaySee prices for these dates

It is also the cheapest return we hold, of any age.

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $264 to $302.

$273, the cheapest return found recently, sits here in that range of $264 to $302.

Those were the prices on those days, not today's.

Is this a good return price?

Compared with the cheapest return fare on each of 30 departure dates from 23 Nov to 1 Jun 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.

Could nearby dates be cheaper?

We hold no other 7-night return fares leaving within 3 days of 23 Nov to compare.

Every date we hold

149 fares on 30 departure dates

23 Nov – 30 Nov: $273, found yesterday5 Dec – 13 Dec: $303, found 2 days ago10 Dec – 13 Dec: $328, found 8 days ago25 Dec – 10 Jan 2027: $567, found 3 days ago26 Dec – 9 Jan 2027: $604, found 3 days ago27 Dec – 10 Jan 2027: $541, found 3 days ago11 Jan 2027 – 2 Feb 2027: $300, found 5 days ago14 Jan 2027 – 6 Feb 2027: $505, found 5 days ago15 Jan 2027 – 7 Feb 2027: $483, found 5 days ago16 Jan 2027 – 6 Feb 2027: $505, found 5 days ago17 Jan 2027 – 7 Feb 2027: $480, found 5 days ago18 Jan 2027 – 9 Feb 2027: $442, found 5 days ago19 Jan 2027 – 9 Feb 2027: $445, found 5 days ago20 Jan 2027 – 10 Feb 2027: $445, found 5 days ago21 Jan 2027 – 11 Feb 2027: $442, found 8 days ago23 Jan 2027 – 10 Feb 2027: $429, found 3 days ago12 Feb 2027 – 24 Feb 2027: $363, found 7 days ago17 Feb 2027 – 17 Feb 2027: $365, found 7 days ago18 Feb 2027 – 8 Mar 2027: $366, found 5 days ago21 Feb 2027 – 8 Mar 2027: $378, found 5 days ago11 Mar 2027 – 12 Mar 2027: $368, found 6 days ago27 Mar 2027 – 4 Apr 2027: $460, found 6 days ago28 Apr 2027 – 12 May 2027: $305, found 2 days ago30 Apr 2027 – 15 May 2027: $426, found 2 days ago26 May 2027 – 3 Jun 2027: $360, found 6 days ago27 May 2027 – 2 Jun 2027: $341, found 6 days ago28 May 2027 – 1 Jun 2027: $363, found 6 days ago29 May 2027 – 11 Jun 2027: $379, found 4 days ago30 May 2027 – 4 Jun 2027: $366, found 2 days ago1 Jun 2027 – 6 Jun 2027: $405, found 2 days agoDecJanFebMarAprMayJun
See the chart as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
23 Nov – 30 Nov$273ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back nonstopfound yesterdaySee prices for these dates
5 Dec – 13 Dec$303ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back nonstopfound 2 days agoSee prices for these dates
10 Dec – 13 Dec$328ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back nonstopfound 8 days agoSee prices for these dates
25 Dec – 10 Jan 2027$567ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out 1 stop, back nonstopfound 3 days agoSee prices for these dates
26 Dec – 9 Jan 2027$604Thai AirAsiaChangi International Airport (SIN) → Koh Samui Airport (USM)out 1 stop, back nonstopfound 3 days agoSee prices for these dates
27 Dec – 10 Jan 2027$541ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out 1 stop, back nonstopfound 3 days agoSee prices for these dates
11 Jan 2027 – 2 Feb 2027$300ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back nonstopfound 5 days agoSee prices for these dates
14 Jan 2027 – 6 Feb 2027$505ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back 2 stopsfound 5 days agoSee prices for these dates
15 Jan 2027 – 7 Feb 2027$483ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back nonstopfound 5 days agoSee prices for these dates
16 Jan 2027 – 6 Feb 2027$505ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back 2 stopsfound 5 days agoSee prices for these dates
17 Jan 2027 – 7 Feb 2027$480ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back nonstopfound 5 days agoSee prices for these dates
18 Jan 2027 – 9 Feb 2027$442ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back nonstopfound 5 days agoSee prices for these dates
19 Jan 2027 – 9 Feb 2027$445ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back nonstopfound 5 days agoSee prices for these dates
20 Jan 2027 – 10 Feb 2027$445ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back nonstopfound 5 days agoSee prices for these dates
21 Jan 2027 – 11 Feb 2027$442ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back nonstopfound 8 days agoSee prices for these dates
23 Jan 2027 – 10 Feb 2027$429ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back nonstopfound 3 days agoSee prices for these dates
12 Feb 2027 – 24 Feb 2027$363ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back nonstopfound 7 days agoSee prices for these dates
17 Feb 2027 – 17 Feb 2027$365ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back nonstopfound 7 days agoSee prices for these dates
18 Feb 2027 – 8 Mar 2027$366ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back nonstopfound 5 days agoSee prices for these dates
21 Feb 2027 – 8 Mar 2027$378ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back nonstopfound 5 days agoSee prices for these dates
11 Mar 2027 – 12 Mar 2027$368ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back nonstopfound 6 days agoSee prices for these dates
27 Mar 2027 – 4 Apr 2027$460ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out 2 stops, back nonstopfound 6 days agoSee prices for these dates
28 Apr 2027 – 12 May 2027$305ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back nonstopfound 2 days agoSee prices for these dates
30 Apr 2027 – 15 May 2027$426ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back nonstopfound 2 days agoSee prices for these dates
26 May 2027 – 3 Jun 2027$360ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out 1 stop, back nonstopfound 6 days agoSee prices for these dates
27 May 2027 – 2 Jun 2027$341ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out 1 stop, back nonstopfound 6 days agoSee prices for these dates
28 May 2027 – 1 Jun 2027$363ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out 1 stop, back nonstopfound 6 days agoSee prices for these dates
29 May 2027 – 11 Jun 2027$379ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back nonstopfound 4 days agoSee prices for these dates
30 May 2027 – 4 Jun 2027$366ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back nonstopfound 2 days agoSee prices for these dates
1 Jun 2027 – 6 Jun 2027$405ScootChangi International Airport (SIN) → Koh Samui Airport (USM)out nonstop, back nonstopfound 2 days agoSee prices for these dates

Which month looks cheapest?

November 2026 is the cheapest month — from $273.

November 2026From $273Cheapest seen1 departure date23 Nov – 30 Nov · found yesterdaySee prices for these dates
December 2026From $3035 departure dates5 Dec – 13 Dec · found 2 days agoSee prices for these dates
January 2027From $30010 departure dates11 Jan 2027 – 2 Feb 2027 · found 5 days agoSee prices for these datesEvery date in January 2027
February 2027From $3634 departure dates12 Feb 2027 – 24 Feb 2027 · found 7 days agoSee prices for these dates
March 2027From $3682 departure dates11 Mar 2027 – 12 Mar 2027 · found 6 days agoSee prices for these dates
April 2027From $3052 departure dates28 Apr 2027 – 12 May 2027 · found 2 days agoSee prices for these dates
May 2027From $3415 departure dates27 May 2027 – 2 Jun 2027 · found 6 days agoSee prices for these dates
June 2027From $4051 departure date1 Jun 2027 – 6 Jun 2027 · found 2 days agoSee prices for these dates

Airlines on the cheapest dates: Scoot, Thai AirAsia.

One-way

Not enough comparable prices yet for a usual one-way price.

Cheapest one-way found recently

$186

17 Aug 2027 · Scoot

Changi International Airport (SIN) → Koh Samui Airport (USM)

Leaves 7:00 a.m. · 1 h 45 min trip

nonstop

found 3 days ago

Open this tripCheck today's price

Cheapest nonstop one-way

$186

17 Aug 2027 · Scoot

Changi International Airport (SIN) → Koh Samui Airport (USM)

Leaves 7:00 a.m. · 1 h 45 min trip

nonstop

found 3 days ago

Open this tripCheck today's price

FareTell may earn a commission when you book through a partner.

Found recently, and the cheapest we hold

Cheapest found recently $186 17 Aug 2027found 3 days agoOpen this trip

It is also the cheapest one-way we hold, of any age.

What have prices looked like?

Over 31 days, 24 Sept to 10 Nov, the cheapest one-way we saw each day was $157 to $367.

$186, the cheapest one-way found recently, sits here in that range of $157 to $367.

Those were the prices on those days, not today's.

Is this a good one-way price?

Not enough comparable prices yet: we hold one-way fares on 1 departure date and need at least 3 to say what is usual.

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 17 Aug 2027 to compare.

Every date we hold

1 fares on 1 departure dates

See every date as a table
The cheapest price seen for each departure date — per traveler in Economy.
DatesFromAirlineAirportsStopsFound
17 Aug 2027$186ScootChangi International Airport (SIN) → Koh Samui Airport (USM)nonstopfound 3 days agoOpen this trip

Airlines on the cheapest dates: Scoot.

Premium cabin fares from Singapore to Koh Samui

We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.

Today's prices for 23 Nov – 30 Nov in another cabin: Premium economy · Business · First

Today's prices for 17 Aug 2027 in another cabin: Premium economy · Business · First

How far ahead were prices cheapest for Singapore to Koh Samui?

Return

The cheapest fares were 14 to 29 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

See these ranges as a table
Typical price in each booking range — round trip, per traveler in Economy.
Booked ahead byTypical fareCheapest dayAbove the cheapestDays of prices
0–6 days$291$280+0%17
7–13 days$296$264+2%14
14–29 days$290$271Cheapest seen37
30–59 days$296$270+2%41
60–89 days$320$297+10%45
90–179 days$320$277+10%49
180+ days$321$302+11%46

One-way

Not enough history yet: in 31 days of one-way prices, 24 Sept to 10 Nov, fewer than 3 booking ranges had prices on 7 days or more.

Live price for these dates

The cheapest return found recently is for 23 Nov – 30 Nov. A live search on this page shows what those dates cost now, for one adult in economy.

Questions about this trip

How much is a return flight from Singapore to Koh Samui?

The cheapest return found recently is $273 with Scoot, 23 Nov to 30 Nov, found yesterday. The cheapest return fare on each of 30 departure dates is usually $363 to $456.

How much is a one-way flight from Singapore to Koh Samui?

The cheapest one-way found recently is $186 with Scoot, 17 Aug 2027, found 3 days ago.

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

November 2026 is the cheapest month for a return, from $273, 23 Nov to 30 Nov, found yesterday.

How far ahead should I book a flight from Singapore to Koh Samui?

In 49 days of prices between 24 Sept and 11 Nov, return fares were cheapest 14 to 29 days before departure.

Is there a direct flight from Singapore to Koh Samui?

Yes, the cheapest nonstop return found recently is $273 with Scoot, 23 Nov to 30 Nov, found yesterday. The cheapest nonstop one-way found recently is $186 with Scoot, 17 Aug 2027, found 3 days ago.

How long is the flight from Singapore to Koh Samui?

The cheapest nonstop one-way found recently, with Scoot on 17 Aug 2027, takes 1 h 45 min from Changi International Airport (SIN) to Koh Samui Airport (USM).

Which airlines have the cheapest flights from Singapore to Koh Samui?

Between 23 Nov and 1 Jun 2027, Scoot has the cheapest return on 29 of the 30 departure dates we hold, and Thai AirAsia on 1.

Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work