Koh Samui to Hong Kong USM → HKG
Koh Samui Airport (USM) → Hong Kong International Airport (HKG)
The cheapest return found recently is $488 with Bangkok Airways, 14 Nov – 20 Nov, found yesterday. The cheapest one-way found recently is $174 with Scoot, 1 Nov, found today.
Return
The cheapest return fare on each of 6 departure dates is usually $426 to $487.
Cheapest return found recently
$488
14 Nov – 20 Nov · Bangkok Airways
Koh Samui Airport (USM) → Hong Kong International Airport (HKG)
Leaves 7:00 a.m. · Return leaves 4:55 p.m. · 28 h 35 min of travel, both ways together
out 1 stop, back 1 stop
found yesterday
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$488 14 Nov – 20 Novfound yesterdaySee prices for these dates
$411 28 Apr 2027 – 1 May 2027found 6 days agoSee prices for these dates
What have prices looked like?
Over 25 days, 24 Sept to 18 Oct, the cheapest return we saw each day was $369 to $434.
At $488, the cheapest return found recently is above 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 6 departure dates from 29 Oct to 28 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 6-night return fares leaving within 3 days of 14 Nov to compare.
Every date we hold
7 fares on 6 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 29 Oct – 1 Nov | $483 | Bangkok Airways | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | out nonstop, back 1 stop | found 5 days ago | See prices for these dates |
| 11 Nov – 12 Nov | $414 | Scoot | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 14 Nov – 20 Nov | $488 | Bangkok Airways | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | out 1 stop, back 1 stop | found yesterday | See prices for these dates |
| 6 Jan 2027 – 29 Jan 2027 | $581 | Bangkok Airways | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 7 Jan 2027 – 14 Jan 2027 | $461 | Scoot | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | out 1 stop, back 1 stop | found 3 days ago | See prices for these dates |
| 28 Apr 2027 – 1 May 2027 | $411 | THAI Airways | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | out 1 stop, back 1 stop | found 6 days ago | See prices for these dates |
Which month looks cheapest?
April 2027 is the cheapest month — from $411.
Airlines on the cheapest dates: Bangkok Airways, Scoot, THAI Airways.
One-way
The cheapest one-way fare on each of 4 departure dates is usually $173 to $192.
Cheapest one-way found recently
$174
1 Nov · Scoot
Koh Samui Airport (USM) → Hong Kong International Airport (HKG)
Leaves 12:00 p.m. · 7 h 35 min trip
stops unknown
found today
Cheapest nonstop one-way
None seen yet.
Found recently, and the cheapest we hold
$174 1 Novfound todayOpen this trip
$171 11 Novfound 6 days agoOpen this trip
What have prices looked like?
Over 20 days, 24 Sept to 18 Oct, the cheapest one-way we saw each day was $171 to $223.
20 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 4 departure dates from 1 Nov to 24 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 one-way fares leaving within 3 days of 1 Nov to compare.
Every date we hold
6 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 1 Nov | $173 | Scoot | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | stops unknown | found 3 days ago | Open this trip |
| 11 Nov | $171 | Scoot | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | stops unknown | found 6 days ago | Open this trip |
| 18 Apr 2027 | $188 | Bangkok Airways | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | 1 stop | found 3 days ago | Open this trip |
| 24 Apr 2027 | $204 | Bangkok Airways | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | 1 stop | found 6 days ago | Open this trip |
Which month looks cheapest?
November 2026 is the cheapest month — from $171.
Airlines on the cheapest dates: Scoot, Bangkok Airways.
Premium cabin fares from Koh Samui to Hong Kong
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 14 Nov – 20 Nov in another cabin: Premium economy · Business · First
Today's prices for 1 Nov in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Koh Samui to Hong Kong?
Return
Fares 14 to 29 days before departure were typically 20% 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 | $505 | $420 | +25% | 9 |
| 7–13 days | $441 | $369 | +9% | 22 |
| 14–29 days | $404 | $369 | Cheapest seen | 25 |
| 30–59 days | $423 | $413 | +5% | 19 |
| 60–89 days | $491 | $461 | +22% | 21 |
| 90–179 days | $482 | $479 | +19% | 23 |
| 180+ days | $460 | $411 | +14% | 20 |
One-way
Not enough history yet: in 20 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.
Return
Koh Samui → Guangzhou
129 km from Hong Kong
$386
$102 less than flying to Hong Kong
30 May 2027 – 13 Jun 2027 · USM → CAN · out 1 stop, back 1 stop
found 3 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 14 Nov – 20 Nov. 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