Cheap Flights from Hong Kong to Koh Samui

FAQ

• What are the cheapest flights from Hong Kong to Koh Samui (HKG-USM)?

  Based on Trip.com data, Thai Lion Air offers one-way fares as low as PHP 8,552 on Cheapest nonstop routes (e.g. HKG to USM on Fri, Nov 14), while HK Express offers Cheapest nonstop round-trips from PHP 17,185 departing on Tue, Oct 14 and returning on Sat, Oct 18.

• Which airlines offer direct flights from Hong Kong to Koh Samui?

  At the moment, you can catch a nonstop flight from Hong Kong to Koh Samui with the following airlines, including: Bangkok Airways Hong Kong Airlines Cathay Pacific Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• How long does it take to fly from Hong Kong (HKG) to Koh Samui (USM) and what is the distance?

  It takes around 3 hours 20 minutes to fly from Hong Kong (HKG) to Koh Samui (USM).

• When is the best time to book flights from Hong Kong to Koh Samui?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Hong Kong to Koh Samui is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How many flights are there per week from Hong Kong to Koh Samui?

  Based on Trip.com data in the past 4 weeks, there is 21 flight per week flying from Hong Kong to Koh Samui. You can check the weekly schedule for popular airlines on this route below: Cathay Pacific: S/M/T/W/T/F/S -- CX6503 (16:44)

• How can I find the best deals on flights from Hong Kong to Koh Samui?

  To find best deals on flights from Hong Kong to Koh Samui, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Fri, Nov 14, with one-way flights priced at just PHP 8,552.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Bangkok Airways.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Koh Samui travel is around March.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Hong Kong (HKG) to Koh Samui (USM) the cheapest?

  The cheapest months to fly from Hong Kong to Koh Samui is June, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Hong Kong to Koh Samui on?

  After crunching the numbers on our October flight calendar, it's currently cheapest to fly from Hong Kong to Koh Samui on October 20, 2025 with HK Express, with prices starting at PHP 16,760.

• Which airports can I fly to for Koh Samui from Hong Kong?

  You can land at any one of the following hubs in Koh Samui, with Hong Kong International Airport to Samui Airport (HKG-USM) is by far the most common option on this route: Samui Airport (USM).

• Is there any time difference between Hong Kong and Koh Samui?

  The time difference between Koh Samui and Hong Kong is 1h.

• How do I change or cancel my ticket from Hong Kong to Koh Samui?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.