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Cheap Flights from Hong Kong Intl (HKG) to Samui International (USM)

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Compare Hong Kong Intl to Samui International flight deals

Find the cheapest month or even day of the year to fly to Samui International

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Flight deals from Hong Kong Intl to Samui International

Looking for a cheap last-minute deal or the best round-trip flight from Hong Kong Intl to Samui International? Find the lowest prices on one-way and round-trip tickets right here.
Koh Samui.$135 per passenger.Departing Mon, Jun 23.One-way flight with HK Express.Outbound indirect flight with HK Express, departing from Hong Kong Intl on Mon, Jun 23, arriving in Samui International.Price includes taxes and charges.From $135, select.
Koh Samui.$144 per passenger.Departing Mon, Sep 1.One-way flight with HK Express.Outbound indirect flight with HK Express, departing from Hong Kong Intl on Mon, Sep 1, arriving in Samui International.Price includes taxes and charges.From $144, select.
Koh Samui.$149 per passenger.Departing Fri, Oct 10.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departing from Hong Kong Intl on Fri, Oct 10, arriving in Samui International.Price includes taxes and charges.From $149, select.
Koh Samui.$150 per passenger.Departing Sat, May 31.One-way flight with Thai AirAsia.Outbound indirect flight with Thai AirAsia, departing from Hong Kong Intl on Sat, May 31, arriving in Samui International.Price includes taxes and charges.From $150, select.
Koh Samui.$152 per passenger.Departing Thu, Aug 21.One-way flight with HK Express.Outbound indirect flight with HK Express, departing from Hong Kong Intl on Thu, Aug 21, arriving in Samui International.Price includes taxes and charges.From $152, select.
Koh Samui.$154 per passenger.Departing Thu, Mar 5.One-way flight with HK Express.Outbound indirect flight with HK Express, departing from Hong Kong Intl on Thu, Mar 5, arriving in Samui International.Price includes taxes and charges.From $154, select.
Koh Samui.$161 per passenger.Departing Tue, Nov 4.One-way flight with Thai LionAir.Outbound indirect flight with Thai LionAir, departing from Hong Kong Intl on Tue, Nov 4, arriving in Samui International.Price includes taxes and charges.From $161, select.
Koh Samui.$166 per passenger.Departing Thu, Feb 5.One-way flight with HK Express.Outbound indirect flight with HK Express, departing from Hong Kong Intl on Thu, Feb 5, arriving in Samui International.Price includes taxes and charges.From $166, select.

Find the cheapest month to fly from Hong Kong Intl to Samui International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Hong Kong Intl to Samui International flights are currently cheapest in June.
May
from $150
Jun
from $135
Jul
from $171
Aug
from $152
Sep
from $144
Oct
from $149
Nov
from $161
Dec
from $194
Jan
from $166
Feb
from $166
Mar
from $154
Apr
from $259

Direct flights from Hong Kong Intl to Samui International

Hong Kong Intl to Samui International: Alternative routes

Compare routes from Hong Kong Intl to Koh Samui below. You may find an airport to fly into that's cheaper, faster, or easier than Samui International.

Hong Kong to Koh Samui: Flight information

The things to know before you go.
Cheapest flight found$135
Cheapest month to flyJune
Average flight time3 hrs, 25 mins
Most popular airlineHong Kong Airlines
Average flights per week41

Finding cheap flights from Hong Kong Intl to Samui International: Frequently asked questions

The best price we found for a round-trip flight from Hong Kong Intl to Samui International is $261. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
3 hours and 25 minutes is the average flight time from Hong Kong Intl to Samui International.
Hong Kong Airlines, Cathay Pacific and Qatar Airways fly direct from Hong Kong Intl to Samui International.
There are 41 flights per week flying from Hong Kong Intl to Samui International, as of May 2025.
The cheapest month to fly from Hong Kong Intl to Samui International is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Hong Kong Intl Airport to Samui International Airport on Sunday, September 14, 2025.
Yes – the average flight time is 3 hours and 25 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Samui International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Koh Samui is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, HK Express and Bangkok Airways offer the cheapest flight tickets to Samui International.

Traveling from Hong Kong International Airport (HKG) to Koh Samui Airport (USM): what you need to know

  • Book a direct flight from Hong Kong International Airport to Koh Samui Airport and you'll be traveling for an average of 3 hours 25 minutes.

  • Each week, there are ten Hong Kong International Airport to Koh Samui Airport flights. If you want to jet off early, take the 16:15 Bangkok Airways flight. If you're eager to make the most of your day before you fly, the latest flight is at 17:05 with Bangkok Airways.

  • Leave enough time to make your HKG to USM flight. A good rule of thumb is to arrive at least two hours before international departures and an hour ahead for domestic flights.

  • Traveling during a peak time such as April? School holidays and other popular periods can mean longer queues and delays at airport checkpoints. Be extra cautious and arrive up to four hours before an international flight and two hours before domestic departures.

  • Bangkok Airways offers direct flights from Hong Kong International Airport to Koh Samui Airport. Book with this popular airline, then get ready to discover the sights in Koh Samui — and maybe even more of Thailand if your schedule allows.

  • The airline that serves the most passengers on this route is Bangkok Airways.

  • Bangkok Airways is the most punctual carrier that operates HKG to USM flights, with 75.41% of its services arriving as scheduled.

  • We make it simple to book a flight with a stopover. To see all your options for tickets from Hong Kong International Airport to Koh Samui Airport, deselect 'Direct flights only.' Then, pick a flight that has a stop long enough to tour your chosen city. Popular stopovers between HKG and USM include:

    • Suvarnabhumi Airport

    • Chiang Mai International Airport

    • Phuket International Airport

How to find the cheapest flights from Hong Kong International Airport (HKG) to Koh Samui Airport (USM)

  • Right now, $135 is the lowest price we've found for a one-way Hong Kong International Airport to Koh Samui Airport flight. The best price for a return plane ticket is $261. Remember that fares may change due to availability when booking.

  • Book six months before your departure date. After looking at the numbers on our calendar, this is how far you should book ahead to secure cheap tickets from HKG to USM.

  • May is the cheapest month for flights from Hong Kong International Airport to Koh Samui Airport. If you'd like to fly at a different time of year, the 'Whole month' tool will give you the lowest prices across every month.

  • Landing cheap flights from HKG to USM is a piece of cake with Price Alerts. Simply set up one of these automatic alerts and we'll let you know when a new deal comes up.

  • Pick your ideal arrival and departure times, number of stops and airlines with the filters. Or sort your results by 'Cheapest' to find the best deals on flights from Hong Kong International Airport to Koh Samui Airport.

Handy information about Hong Kong International Airport (HKG)

  • You'll find HKG at 1 Cheong Hong Rd.

  • When it comes to the on-time performance of Hong Kong International Airport, 73.04% of flights complete their journey on time.

  • To get to Hong Kong International Airport from central Hong Kong, it takes about 30 minutes if you're going by car. Of course, this depends on traffic conditions. It's approximately 20 miles from the airport to the city center.

  • The trip when using public transport usually takes 45 minutes.

  • Get your journey off to a relaxed start by staying near HKG. Whether you're catching an early flight from Hong Kong International Airport to Koh Samui Airport or want to avoid feeling rushed, these stays have you covered:

Arriving at Koh Samui Airport (USM)

  • The last thing you want is a long journey to your hotel if you're getting in late on a Hong Kong International Airport to Koh Samui Airport flight. Stay at one of these accommodation options near USM instead:

  • Go wherever you want, whenever you want with a Koh Samui Airport rental car. Pick up a set of wheels from asap car rental, Hertz or Drive Car Rental and venture far and wide through Koh Samui and beyond.

  • Booking your vehicle from Koh Samui Airport about four weeks ahead can help you get the best possible rate.

Getting from Koh Samui Airport (USM) to central Koh Samui

  • Koh Samui Airport is about 2 miles from central Koh Samui. How long it takes to get there in a cab or ride-share will depend on the time of day, so do some research before you go.

When to fly to Koh Samui Airport (USM)

  • The quietest month for a flight from Hong Kong International Airport to Koh Samui Airport is February, while July is the most popular. Choose the best time to visit Koh Samui based on whether you prefer a more relaxed vibe or a faster pace.

Explore more of Thailand

  • You've done Koh Samui, now it's time to discover other corners of Thailand. Journey about 290 miles north to Bangkok to tick off its popular sights. From Grand Palace to Wat Arun and Wat Phra Kaew, you'll have a packed itinerary ahead.

  • Around 270 miles north of Koh Samui, Chon Buri is another favorite stop in Thailand. Get a taste of what this destination has to offer at Wat Ton Son, Forest and Phra Phutthasihing Hall.

More travel options

Plan the rest of your trip from Hong Kong to Koh Samui

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.