Cheap flights from Koh Samui to Singapore from $130 USM → SIN, XSP
Koh Samui Airport (USM) → Changi International Airport (SIN), Seletar (XSP)
The cheapest return found recently is $295 with Scoot, 1 Dec – 12 Dec, found 2 days ago. The cheapest one-way found recently is $130 with Scoot, 27 Jan 2027, found 2 days ago.
- Cheapest one-way found recently
- $130, Scoot, found 2 days ago
- Cheapest return found recently
- $295, 1 Dec to 12 Dec
- Usual return price
- $299 to $370
- Cheapest month to fly
- November 2026, return fares from $275 found in the last 7 days
- Airlines with nonstop flights
- Scoot, Bangkok Airways
- Shortest nonstop flight found
- 2 h
Return
The cheapest return fare on each of 19 departure dates is usually $299 to $370.
Cheapest return found recently
$295
1 Dec – 12 Dec · Scoot
Koh Samui Airport (USM) → Changi International Airport (SIN)
Leaves 8:55 a.m. · Return leaves 6:05 p.m. · 3 h 40 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Cheapest nonstop return
$295
1 Dec – 12 Dec · Scoot
Koh Samui Airport (USM) → Changi International Airport (SIN)
Leaves 8:55 a.m. · Return leaves 6:05 p.m. · 3 h 40 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Found recently, and the cheapest we hold
$295 1 Dec – 12 Decfound 2 days agoSee prices for these dates
$275 28 Nov – 28 Novfound 4 days agoSee prices for these dates
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $262 to $281.
At $295, the cheapest return found recently is above that range.
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 19 departure dates from 17 Nov to 24 Jul 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 11-night return fares leaving within 3 days of 1 Dec to compare.
Every date we hold
138 fares on 19 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 17 Nov – 21 Nov | $283 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 20 Nov – 23 Nov | $302 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 21 Nov – 23 Nov | $302 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 24 Nov – 25 Nov | $280 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 28 Nov – 28 Nov | $275 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 1 Dec – 12 Dec | $295 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 7 Dec – 14 Dec | $283 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | out nonstop, back nonstop | found 3 days ago | See prices for these dates |
| 18 Dec – 3 Jan 2027 | $330 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 27 Dec – 29 Dec | $626 | Bangkok Airways | Koh Samui Airport (USM) → Changi International Airport (SIN) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 3 Jan 2027 – 10 Jan 2027 | $574 | Bangkok Airways | Koh Samui Airport (USM) → Changi International Airport (SIN) | out 2 stops, back nonstop | found 2 days ago | See prices for these dates |
| 9 Jan 2027 – 10 Jan 2027 | $438 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 16 Jan 2027 – 18 Jan 2027 | $368 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 18 Jan 2027 – 19 Jan 2027 | $305 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | out nonstop, back nonstop | found 8 days ago | See prices for these dates |
| 22 Jan 2027 – 24 Jan 2027 | $307 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | out nonstop, back nonstop | found 6 days ago | See prices for these dates |
| 1 Mar 2027 – 7 Mar 2027 | $364 | Bangkok Airways | Koh Samui Airport (USM) → Changi International Airport (SIN) | out nonstop, back nonstop | found 8 days ago | See prices for these dates |
| 2 Mar 2027 – 5 Mar 2027 | $372 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | out nonstop, back nonstop | found 4 days ago | See prices for these dates |
| 22 Jul 2027 – 29 Jul 2027 | $305 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | out nonstop, back nonstop | found 7 days ago | See prices for these dates |
| 23 Jul 2027 – 30 Jul 2027 | $316 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | out nonstop, back nonstop | found 7 days ago | See prices for these dates |
| 24 Jul 2027 – 7 Aug 2027 | $477 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | out nonstop, back nonstop | found 7 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $275.
Airlines on the cheapest dates: Scoot, Bangkok Airways.
One-way
The cheapest one-way fare on each of 27 departure dates is usually $129 to $147.
Cheapest one-way found recently
$130
27 Jan 2027 · Scoot
Koh Samui Airport (USM) → Changi International Airport (SIN)
Leaves 6:20 p.m. · 2 h trip
nonstop
found 2 days ago
Cheapest nonstop one-way
$130
27 Jan 2027 · Scoot
Koh Samui Airport (USM) → Changi International Airport (SIN)
Leaves 6:20 p.m. · 2 h trip
nonstop
found 2 days ago
Found recently, and the cheapest we hold
$130 27 Jan 2027found 2 days agoOpen this trip
$116 25 Novfound 7 days agoOpen this trip
What have prices looked like?
Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $97 to $126.
At $130, the cheapest one-way found recently is above that range.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 27 departure dates from 18 Nov to 19 Sept 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?
No. We hold one-way fares on 5 other departure dates within 3 days of 27 Jan 2027, and none is cheaper.
Every date we hold
31 fares on 27 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 18 Nov | $128 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | stops unknown | found 4 days ago | Open this trip |
| 19 Nov | $126 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | stops unknown | found 3 days ago | Open this trip |
| 25 Nov | $116 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 7 days ago | Open this trip |
| 18 Dec | $121 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 4 days ago | Open this trip |
| 18 Jan 2027 | $122 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 4 days ago | Open this trip |
| 19 Jan 2027 | $129 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 5 days ago | Open this trip |
| 22 Jan 2027 | $129 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 3 days ago | Open this trip |
| 23 Jan 2027 | $147 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 4 days ago | Open this trip |
| 24 Jan 2027 | $135 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 3 days ago | Open this trip |
| 25 Jan 2027 | $147 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 6 days ago | Open this trip |
| 27 Jan 2027 | $130 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 2 days ago | Open this trip |
| 28 Jan 2027 | $136 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 2 days ago | Open this trip |
| 29 Jan 2027 | $147 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 4 days ago | Open this trip |
| 30 Jan 2027 | $133 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 2 days ago | Open this trip |
| 31 Jan 2027 | $129 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 5 days ago | Open this trip |
| 4 Feb 2027 | $164 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 6 days ago | Open this trip |
| 17 Feb 2027 | $164 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 5 days ago | Open this trip |
| 6 Mar 2027 | $138 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 4 days ago | Open this trip |
| 24 Mar 2027 | $146 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 7 days ago | Open this trip |
| 20 Apr 2027 | $139 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 3 days ago | Open this trip |
| 21 Apr 2027 | $161 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 7 days ago | Open this trip |
| 26 Apr 2027 | $152 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 2 days ago | Open this trip |
| 3 May 2027 | $230 | Bangkok Airways | Koh Samui Airport (USM) → Changi International Airport (SIN) | 1 stop | found 7 days ago | Open this trip |
| 12 May 2027 | $130 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 7 days ago | Open this trip |
| 13 May 2027 | $129 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 6 days ago | Open this trip |
| 2 Jul 2027 | $131 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 7 days ago | Open this trip |
| 19 Sept 2027 | $125 | Scoot | Koh Samui Airport (USM) → Changi International Airport (SIN) | nonstop | found 6 days ago | Open this trip |
Which month looks cheapest?
November 2026 is the cheapest month — from $116.
Airlines on the cheapest dates: Scoot, Bangkok Airways.
Premium cabin fares from Koh Samui to Singapore
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 1 Dec – 12 Dec in another cabin: Premium economy · Business · First
Today's prices for 27 Jan 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Koh Samui to Singapore?
Return
The cheapest fares were 7 to 13 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
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $291 | $271 | +3% | 38 |
| 7–13 days | $281 | $266 | Cheapest seen | 41 |
| 14–29 days | $282 | $262 | +0% | 49 |
| 30–59 days | $291 | $274 | +4% | 49 |
| 60–89 days | $305 | $271 | +9% | 48 |
| 90–179 days | $308 | $278 | +10% | 49 |
| 180+ days | $304 | $290 | +8% | 32 |
One-way
The cheapest fares were 14 to 29 days before departure.
From the cheapest one-way 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
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $124 | $97 | +2% | 15 |
| 7–13 days | $126 | $116 | +3% | 14 |
| 14–29 days | $122 | $116 | Cheapest seen | 23 |
| 30–59 days | $124 | $113 | +2% | 31 |
| 60–89 days | $126 | $115 | +3% | 42 |
| 90–179 days | $132 | $113 | +8% | 49 |
| 180+ days | $142 | $125 | +16% | 46 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
One-way
Surat Thani → Singapore
94 km from Koh Samui
$176
$46 more than flying from Koh Samui
16 Dec · URT → SIN · 1 stop
found 4 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 1 Dec – 12 Dec. 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 Koh Samui to Singapore?
The cheapest return found recently is $295 with Scoot, 1 Dec to 12 Dec, found 2 days ago. The cheapest return we hold, of any age, is $275 with Scoot, 28 Nov to 28 Nov, found 4 days ago. The cheapest return fare on each of 19 departure dates is usually $299 to $370.
How much is a one-way flight from Koh Samui to Singapore?
The cheapest one-way found recently is $130 with Scoot, 27 Jan 2027, found 2 days ago. The cheapest one-way we hold, of any age, is $116 with Scoot, 25 Nov, found 7 days ago. The cheapest one-way fare on each of 27 departure dates is usually $129 to $147.
What is the cheapest month to fly from Koh Samui to Singapore?
November 2026 is the cheapest month for a return, from $275, 28 Nov to 28 Nov, found 4 days ago. It is the cheapest month for a one-way too, from $116, 25 Nov, found 7 days ago.
How far ahead should I book a flight from Koh Samui to Singapore?
In 49 days of prices between 24 Sept and 11 Nov, return fares were cheapest 7 to 13 days before departure. One-way fares were cheapest 14 to 29 days before departure.
Is there a direct flight from Koh Samui to Singapore?
Yes, the cheapest nonstop return found recently is $295 with Scoot, 1 Dec to 12 Dec, found 2 days ago. The cheapest nonstop one-way found recently is $130 with Scoot, 27 Jan 2027, found 2 days ago.
How long is the flight from Koh Samui to Singapore?
The cheapest nonstop one-way found recently, with Scoot on 27 Jan 2027, takes 2 h from Koh Samui Airport (USM) to Changi International Airport (SIN).
Which airlines have the cheapest flights from Koh Samui to Singapore?
Between 17 Nov and 24 Jul 2027, Scoot has the cheapest return on 16 of the 19 departure dates we hold, and Bangkok Airways on 3. Between 18 Nov and 19 Sept 2027, Scoot has the cheapest one-way on 26 of the 27 departure dates we hold, and Bangkok Airways 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
