Koh Samui to Denpasar (Bali) USM → DPS
Koh Samui Airport (USM) → Ngurah Rai International Airport (DPS)
The cheapest return found recently is $386 with Scoot, 12 Jan 2027 – 21 Jan 2027, found 2 days ago. The cheapest one-way found recently is $111 with Transnusa, 8 Nov, found yesterday.
Return
The cheapest return fare on each of 5 departure dates is usually $469 to $493.
Cheapest return found recently
$386
12 Jan 2027 – 21 Jan 2027 · Scoot
Koh Samui Airport (USM) → Ngurah Rai International Airport (DPS)
Leaves 6:05 p.m. · Return leaves 8:00 p.m. · 39 h of travel, both ways together
out 1 stop, back 1 stop
found 2 days ago
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$386 12 Jan 2027 – 21 Jan 2027found 2 days agoSee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $386 to $440.
At $386, the cheapest return found recently is at the low end of that range.
25 days is a short history, so treat this range as an early guide.
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 5 departure dates from 20 Oct to 25 Apr 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 9-night return fares leaving within 3 days of 12 Jan 2027 to compare.
Every date we hold
5 fares on 5 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 20 Oct – 26 Oct | $473 | Bangkok Airways | Koh Samui Airport (USM) → Ngurah Rai International Airport (DPS) | out 1 stop, back 2 stops | found 3 days ago | See prices for these dates |
| 1 Jan 2027 – 3 Jan 2027 | $686 | Bangkok Airways | Koh Samui Airport (USM) → Ngurah Rai International Airport (DPS) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
| 12 Jan 2027 – 21 Jan 2027 | $386 | Scoot | Koh Samui Airport (USM) → Ngurah Rai International Airport (DPS) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 15 Jan 2027 – 17 Jan 2027 | $493 | Scoot | Koh Samui Airport (USM) → Ngurah Rai International Airport (DPS) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 25 Apr 2027 – 4 May 2027 | $469 | Scoot | Koh Samui Airport (USM) → Ngurah Rai International Airport (DPS) | out 1 stop, back 2 stops | found 6 days ago | See prices for these dates |
Which month looks cheapest?
January 2027 is the cheapest month — from $386.
Airlines on the cheapest dates: Scoot, Bangkok Airways.
One-way
The cheapest one-way fare on each of 7 departure dates is usually $183 to $225.
Cheapest one-way found recently
$111
8 Nov · Transnusa
Koh Samui Airport (USM) → Ngurah Rai International Airport (DPS)
Leaves 8:15 a.m. · 35 h 20 min trip
stops unknown
found yesterday
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$111 8 Novfound yesterdayOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $111 to $271.
At $111, the cheapest one-way found recently is at the low end of that range.
25 days is a short history, so treat this range as an early guide.
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 7 departure dates from 22 Oct to 1 Aug 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 1 other departure date within 3 days of 8 Nov, and it is not cheaper.
Every date we hold
7 fares on 7 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 22 Oct | $194 | Scoot | Koh Samui Airport (USM) → Ngurah Rai International Airport (DPS) | stops unknown | found today | Open this trip |
| 8 Nov | $111 | Transnusa | Koh Samui Airport (USM) → Ngurah Rai International Airport (DPS) | stops unknown | found yesterday | Open this trip |
| 11 Nov | $172 | Indonesia AirAsia | Koh Samui Airport (USM) → Ngurah Rai International Airport (DPS) | stops unknown | found 6 days ago | Open this trip |
| 23 Nov | $211 | Transnusa | Koh Samui Airport (USM) → Ngurah Rai International Airport (DPS) | stops unknown | found 2 days ago | Open this trip |
| 25 Apr 2027 | $263 | Scoot | Koh Samui Airport (USM) → Ngurah Rai International Airport (DPS) | 1 stop | found 6 days ago | Open this trip |
| 24 May 2027 | $224 | Bangkok Airways | Koh Samui Airport (USM) → Ngurah Rai International Airport (DPS) | 1 stop | found 2 days ago | Open this trip |
| 1 Aug 2027 | $226 | Scoot | Koh Samui Airport (USM) → Ngurah Rai International Airport (DPS) | 1 stop | found 3 days ago | Open this trip |
Which month looks cheapest?
November 2026 is the cheapest month — from $111.
Airlines on the cheapest dates: Scoot, Transnusa, Indonesia AirAsia, Bangkok Airways.
Premium cabin fares from Koh Samui to Denpasar (Bali)
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 12 Jan 2027 – 21 Jan 2027 in another cabin: Premium economy · Business · First
Today's prices for 8 Nov in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Koh Samui to Denpasar (Bali)?
Return
Fares 30 to 59 days before departure were typically 14% lower than 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 18 Oct (25 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 | $477 | $472 | +16% | 21 |
| 7–13 days | $437 | $437 | +7% | 7 |
| 14–29 days | $437 | $390 | +7% | 21 |
| 30–59 days | $410 | $402 | Cheapest seen | 8 |
| 60–89 days | $566 | $386 | +38% | 25 |
| 90–179 days | $560 | $419 | +37% | 12 |
| 180+ days | $502 | $430 | +22% | 21 |
One-way
Not enough history yet: in 25 days of one-way prices, 24 Sept to 18 Oct, fewer than 3 booking ranges had prices on 7 days or more.
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
One-way
Surat Thani → Denpasar (Bali)
94 km from Koh Samui
$207
$96 more than flying from Koh Samui
5 Dec · URT → DPS · 1 stop
found yesterday
Chumphon → Denpasar (Bali)
142 km from Koh Samui
$257
$146 more than flying from Koh Samui
25 Apr 2027 · CJM → DPS · 2 stops
found 6 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 12 Jan 2027 – 21 Jan 2027. A live search on this page shows what those dates cost now, for one adult in economy.
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