Cheap flights from Hong Kong to Ko Samui from $165

In general, September is the cheapest month to fly from Hong Kong to Ko Samui. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $455. If you don’t want to visit Ko Samui in September, then you should wait until November to fly from Hong Kong, when ticket prices are also cheap, with an average price of $484.

Our data shows that Wednesday is the least expensive day to fly to Ko Samui. Tickets to fly out on this day can be as low as $499. Flights from Hong Kong to Ko Samui on a Friday will generally be more expensive and average around $686. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our data shows that the cheapest Hong Kong to Ko Samui flights are usually those with departure times in the afternoon. Our users have found flights to Ko Samui in the afternoon for as low as $533. In the evening is when there is more demand to fly to Ko Samui, so prices are often more expensive at around $1,753 per ticket.

Fly from Hong Kong Intl to Ko Samui for the best Hong Kong Intl - Ko Samui flight prices

You are more likely to see cheaper flights to Ko Samui from Hong Kong when booking weeks ahead of your departure date. In general, you can expect to find flights to Ko Samui for around $567 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ko Samui from Hong Kong for as low as $474 on momondo.

There are 2 cabin classes available to choose from on Hong Kong Intl to Ko Samui flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Historically, on average around 13% of flights between Hong Kong and Ko Samui have experienced a delay on any given week. The average delay length over the past 12 months has been 117 minutes.

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, Bangkok Airways have had the least number of delays on this route over the last 12 months; with about 13% of their flights experiencing any sort of delay.

The number of flights available between Hong Kong and Ko Samui is 8 per day as of March 2026. The most frequent departure time is 5:00PM, with 100% of daily flights leaving in the afternoon.

As of March 2026, 56 flights take off from Hong Kong and land in Ko Samui each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.