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Hong Kong to Koh Samui flights

Round trip · Economy · Prices per person in USD

Prices updated

Cheapest found $372 Oct 27 – Nov 5 · 1 stop Book this fare
Usual price $497 The cheapest we found is 25% less
Cheapest month October From $372

Prices are low right now

$372 is $125 (25%) below the usual $497 for Hong Kong → Koh Samui.

Buy now or wait? We're still learning this route. We have 1 day of prices so far and need about a week to say whether to book or wait.

Not ready to book? Get an email when Hong Kong → Koh Samui drops below your price.

Cheapest round trip by month

Lowest fare found per departure month
Cheapest month Below usual Usual price $497 Tap a month to see its cheapest dates.
Cheapest round trip from Hong Kong to Koh Samui by departure month
MonthCheapest round trip
September 2026No fares found yet
October 2026$372 (cheapest month)
November 2026$394
December 2026$498
January 2027$484
February 2027No fares found yet
March 2027$497
April 2027$506
May 2027No fares found yet
June 2027No fares found yet
July 2027$503

Cheapest dates in the next 4 months

Round trip, per person
  • Oct 27 – Nov 5 9 nights · leave Tue
    $372 −25% vs usual
    HK Express 1 stop · 4h 40m
    Book
  • Nov 2 – 15 13 nights · leave Mon
    $394 −21% vs usual
    HK Express 1 stop · 4h 15m
    Book
  • Oct 30 – Nov 14 15 nights · leave Fri
    $395 −21% vs usual
    HK Express 1 stop · 4h 40m
    Book
  • Nov 8 – 22 14 nights · leave Sun
    $396 −20% vs usual
    HK Express 1 stop · 4h 15m
    Book
  • Nov 16 – 22 6 nights · leave Mon
    $397 −20% vs usual
    HK Express 1 stop · 4h 15m
    Book
  • Oct 31 – Nov 15 15 nights · leave Sat
    $401 −19% vs usual
    HK Express 1 stop · 4h 15m
    Book
  • Nov 8 – 19 11 nights · leave Sun
    $408 −18% vs usual
    HK Express 1 stop · 4h 15m
    Book
  • Oct 9 – 14 5 nights · leave Fri
    $422 −15% vs usual
    HK Express 1 stop · 3h 55m
    Book

Prices change often. The booking site shows the final price before you pay. Other dates? Set an alert

Airport transfer to Koh Samui

Fixed prices from USM on Kiwitaxi

To see transfer prices here, turn on partner content in .

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Plan the rest of your trip

Koh Samui · Oct 27 – Nov 5

Travel insurance · EKTA Airport transfer · Kiwitaxi

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Good to know

Cheapest day to leave Sunday Typical fare $408, vs $442 across all days.
Airlines with cheap fares 2 airlines Most often: HK Express, Thai Lion Air.
Most expensive month April Cheapest round trip that month is $506, vs $372 in the cheapest month.

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Hong Kong to Koh Samui: questions

How much is a flight from Hong Kong to Koh Samui?

The cheapest round trip we have found right now is $372, leaving October 27 and returning November 5. The usual price on this route is about $497, so this fare is 25% less. Prices are per person, economy, in USD.

What is the cheapest month to fly from Hong Kong to Koh Samui?

October 2026, with round trips from $372. The most expensive month in our data is April (from $506). Based on the 7 months ahead we have prices for.

What is the cheapest day to fly from Hong Kong to Koh Samui?

Leaving on a Sunday. Typical fare $408, vs $442 across all days.

About this route

We track round-trip economy fares from Hong Kong (Hong Kong) to Koh Samui (Thailand) using Travelpayouts / Aviasales data. The cheapest round trip we've found is $372, departing October 27 and returning November 5, about 25% below the usual $497. Right now we're following 22 upcoming date combinations on this route. The cheapest month to fly in our data is October, from $372. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.

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