Cheap flights from Koh Samui to Hong Kong from $196 USM → HKG
Koh Samui Airport (USM) → Hong Kong International Airport (HKG)
The cheapest return found recently is $459 with Bangkok Airways, 21 Jun 2027 – 25 Jun 2027, found 2 days ago. The cheapest one-way found recently is $196 with HK Express, 6 Feb 2027, found 2 days ago.
- Cheapest one-way found recently
- $196, found 2 days ago
- Cheapest return found recently
- $459, 21 Jun 2027 to 25 Jun 2027
- Usual return price
- $460 to $523
- Cheapest month to fly
- November 2026, return fares from $386 found in the last 7 days
- Airlines with nonstop flights
- Bangkok Airways
- Shortest nonstop flight found
- 3 h 25 min
Return
The cheapest return fare on each of 17 departure dates is usually $460 to $523.
Cheapest return found recently
$459
21 Jun 2027 – 25 Jun 2027 · Bangkok Airways
Koh Samui Airport (USM) → Hong Kong International Airport (HKG)
Leaves 7:50 a.m. · Return leaves 12:45 p.m. · 19 h 55 min of travel, both ways together
out 1 stop, back 1 stop · via Suvarnabhumi Airport (BKK) · 9 h connection
found 2 days ago
Cheapest nonstop return
$538
21 Jun 2027 – 25 Jun 2027 · Bangkok Airways
Koh Samui Airport (USM) → Hong Kong International Airport (HKG)
Leaves 11:55 a.m. · Return leaves 8:40 p.m. · 6 h 45 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Every nonstop date from Koh Samui to Hong Kong
Found recently, and the cheapest we hold
$459 21 Jun 2027 – 25 Jun 2027found 2 days agoSee prices for these dates
$386 13 Nov – 16 Novfound 6 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 $369 to $434.
At $459, 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 17 departure dates from 13 Nov 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?
We hold no other 4-night return fares leaving within 3 days of 21 Jun 2027 to compare.
Every date we hold
76 fares on 17 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 13 Nov – 16 Nov | $386 | Bangkok Airways | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | out nonstop, back 1 stop | found 6 days ago | See prices for these dates |
| 15 Nov – 18 Nov | $414 | Scoot | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | out 1 stop, back 1 stop | found 7 days ago | See prices for these dates |
| 4 Dec – 8 Dec | $460 | Bangkok Airways | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | out 1 stop, back 1 stop | found 8 days ago | See prices for these dates |
| 5 Dec – 13 Dec | $523 | 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 |
| 7 Dec – 14 Dec | $503 | Scoot | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | out 1 stop, back 1 stop | found 4 days ago | See prices for these dates |
| 11 Dec – 28 Dec | $542 | Bangkok 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 |
| 27 Dec – 3 Jan 2027 | $582 | Bangkok Airways | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 10 Jan 2027 – 13 Jan 2027 | $523 | 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 |
| 29 Jan 2027 – 2 Feb 2027 | $520 | Bangkok Airways | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | out nonstop, back nonstop | found 7 days ago | See prices for these dates |
| 30 Jan 2027 – 1 Feb 2027 | $520 | Bangkok Airways | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | out nonstop, back nonstop | found 7 days ago | See prices for these dates |
| 1 Feb 2027 – 5 Feb 2027 | $620 | Scoot | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | out 1 stop, back 2 stops | found 7 days ago | See prices for these dates |
| 20 Feb 2027 – 26 Feb 2027 | $480 | Bangkok Airways | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | out nonstop, back 1 stop | found 7 days ago | See prices for these dates |
| 21 Feb 2027 – 7 Mar 2027 | $491 | Bangkok Airways | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | out 1 stop, back 1 stop | found 5 days ago | See prices for these dates |
| 22 Feb 2027 – 25 Feb 2027 | $457 | 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 |
| 5 Apr 2027 – 11 Apr 2027 | $504 | Bangkok 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 |
| 21 Jun 2027 – 25 Jun 2027 | $459 | Bangkok Airways | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | out 1 stop, back 1 stop | found 2 days ago | See prices for these dates |
| 1 Aug 2027 – 4 Aug 2027 | $492 | Bangkok Airways | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | out 1 stop, back 1 stop | found 7 days ago | See prices for these dates |
Which month looks cheapest?
November 2026 is the cheapest month — from $386.
Airlines on the cheapest dates: Bangkok Airways, Scoot.
One-way
The cheapest one-way fare on each of 5 departure dates is usually $189 to $212.
Cheapest one-way found recently
$196
6 Feb 2027 · HK Express
Koh Samui Airport (USM) → Hong Kong International Airport (HKG)
Leaves 7:00 a.m. · 6 h 35 min trip
stops unknown
found 2 days ago
Cheapest nonstop one-way
$259
18 Apr 2027 · Bangkok Airways
Koh Samui Airport (USM) → Hong Kong International Airport (HKG)
Leaves 11:55 a.m. · 3 h 25 min trip
nonstop
found 4 days ago
Found recently, and the cheapest we hold
$196 6 Feb 2027found 2 days agoOpen this trip
$189 18 Apr 2027found 4 days agoOpen this trip
What have prices looked like?
Over 43 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $119 to $223.
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 5 departure dates from 6 Feb 2027 to 21 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 one-way fares leaving within 3 days of 6 Feb 2027 to compare.
Every date we hold
20 fares on 5 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 6 Feb 2027 | $196 | HK Express | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | stops unknown | found 2 days ago | Open this trip |
| 18 Apr 2027 | $189 | Bangkok Airways | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | 1 stop | found 4 days ago | Open this trip |
| 12 Jun 2027 | $212 | Bangkok Airways | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | 1 stop | found 5 days ago | Open this trip |
| 29 Jun 2027 | $189 | Bangkok Airways | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | 1 stop | found 7 days ago | Open this trip |
| 21 Jul 2027 | $238 | Bangkok Airways | Koh Samui Airport (USM) → Hong Kong International Airport (HKG) | 1 stop | found 7 days ago | Open this trip |
Which month looks cheapest?
April 2027 is the cheapest month — from $189.
Airlines on the cheapest dates: Bangkok Airways, HK Express.
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 21 Jun 2027 – 25 Jun 2027 in another cabin: Premium economy · Business · First
Today's prices for 6 Feb 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Koh Samui to Hong Kong?
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
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $416 | $386 | +0% | 26 |
| 7–13 days | $421 | $369 | +2% | 36 |
| 14–29 days | $414 | $369 | Cheapest seen | 49 |
| 30–59 days | $495 | $413 | +20% | 42 |
| 60–89 days | $491 | $461 | +19% | 45 |
| 90–179 days | $479 | $438 | +16% | 40 |
| 180+ days | $460 | $383 | +11% | 38 |
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 (43 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 |
|---|---|---|---|---|
| 14–29 days | $175 | $171 | Cheapest seen | 8 |
| 90–179 days | $188 | $180 | +7% | 16 |
| 180+ days | $189 | $187 | +8% | 30 |
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
$399
$60 less than flying to Hong Kong
7 Jul 2027 – 11 Jul 2027 · USM → CAN · out 1 stop, back 1 stop
found 2 days ago
Surat Thani → Hong Kong
94 km from Koh Samui
$355
$104 less than flying from Koh Samui
1 Jul 2027 – 4 Jul 2027 · URT → HKG · out 1 stop, back 1 stop
found 6 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Surat Thani → Hong Kong
94 km from Koh Samui
$142
$54 less than flying from Koh Samui
16 Feb 2027 · URT → HKG · 1 stop
found 2 days ago
Koh Samui → Shenzhen
27 km from Hong Kong
$242
$46 more than flying to Hong Kong
23 Dec · USM → SZX · stops unknown
found 3 days ago
Koh Samui → Guangzhou
129 km from Hong Kong
$249
$53 more than flying to Hong Kong
13 Nov · USM → CAN · stops unknown
found 2 days ago
Koh Samui → Zhuhai
61 km from Hong Kong
$316
$120 more than flying to Hong Kong
10 Apr 2027 · USM → ZUH · 2 stops
found 5 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 21 Jun 2027 – 25 Jun 2027. 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 Hong Kong?
The cheapest return found recently is $459 with Bangkok Airways, 21 Jun 2027 to 25 Jun 2027, found 2 days ago. The cheapest return we hold, of any age, is $386 with Bangkok Airways, 13 Nov to 16 Nov, found 6 days ago. The cheapest return fare on each of 17 departure dates is usually $460 to $523.
How much is a one-way flight from Koh Samui to Hong Kong?
The cheapest one-way found recently is $196 with HK Express, 6 Feb 2027, found 2 days ago. The cheapest one-way we hold, of any age, is $189 with Bangkok Airways, 18 Apr 2027, found 4 days ago. The cheapest one-way fare on each of 5 departure dates is usually $189 to $212.
What is the cheapest month to fly from Koh Samui to Hong Kong?
November 2026 is the cheapest month for a return, from $386, 13 Nov to 16 Nov, found 6 days ago. April 2027 is the cheapest month for a one-way, from $189, 18 Apr 2027, found 4 days ago.
How far ahead should I book a flight from Koh Samui to Hong Kong?
In 49 days of prices between 24 Sept and 11 Nov, return fares were cheapest 14 to 29 days before departure. In 43 days of prices between 24 Sept and 11 Nov, one-way fares were cheapest 14 to 29 days before departure.
Is there a direct flight from Koh Samui to Hong Kong?
Yes, the cheapest nonstop return found recently is $538 with Bangkok Airways, 21 Jun 2027 to 25 Jun 2027, found 2 days ago. The cheapest nonstop one-way found recently is $259 with Bangkok Airways, 18 Apr 2027, found 4 days ago.
How long is the flight from Koh Samui to Hong Kong?
The cheapest nonstop one-way found recently, with Bangkok Airways on 18 Apr 2027, takes 3 h 25 min from Koh Samui Airport (USM) to Hong Kong International Airport (HKG).
Which airlines have the cheapest flights from Koh Samui to Hong Kong?
Between 13 Nov and 1 Aug 2027, Bangkok Airways has the cheapest return on 13 of the 17 departure dates we hold, and Scoot on 4. Between 6 Feb 2027 and 21 Jul 2027, Bangkok Airways has the cheapest one-way on 4 of the 5 departure dates we hold, and HK Express 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
