Cheap Flights to Koh Madsum from HK$899

View HK$899 flight on Sat, 20 Sep 2025Opens in a new window

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Cheap round-trip flights to Koh Madsum

Prices were available within the past 7 days and start at HK$899 for one-way flights and HK$1,765 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bangkok Airways
Tue, 28 Oct - Thu, 30 Oct
HKT
Phuket
USM
Koh Samui
HK$1,765 Return, found 5 days ago
HK$1,765
Return
found 5 days ago
Select Bangkok Airways flight, departing Tue, 28 Oct from Phuket to Koh Samui, returning Thu, 30 Oct, priced at HK$1,765 found 5 days ago
Scoot
Tue, 7 Oct - Sun, 12 Oct
TPE
Taipei
USM
Koh Samui
HK$2,207 Return, found 1 day ago
HK$2,207
Return
found 1 day ago
Select Scoot flight, departing Tue, 7 Oct from Taipei to Koh Samui, returning Sun, 12 Oct, priced at HK$2,207 found 1 day ago
Singapore Airlines
Sat, 11 Oct - Tue, 14 Oct
HKG
Hong Kong SAR
USM
Koh Samui
HK$3,132 Return, just found
HK$3,132
Return
just found
Select Singapore Airlines flight, departing Sat, 11 Oct from Hong Kong SAR to Koh Samui, returning Tue, 14 Oct, priced at HK$3,132 just found
Thai Airways International
Thu, 4 Sep - Sat, 13 Sep
PEN
Penang
USM
Koh Samui
HK$3,507 Return, found 6 days ago
HK$3,507
Return
found 6 days ago
Select Thai Airways International flight, departing Thu, 4 Sep from Penang to Koh Samui, returning Sat, 13 Sep, priced at HK$3,507 found 6 days ago
EVA Airways
Sat, 30 Aug - Sat, 6 Sep
HKG
Hong Kong SAR
USM
Koh Samui
HK$4,174 Return, just found
HK$4,174
Return
just found
Select EVA Airways flight, departing Sat, 30 Aug from Hong Kong SAR to Koh Samui, returning Sat, 6 Sep, priced at HK$4,174 just found

Frequently asked questions

How do I find cheap flights to Koh Madsum that have flexible change policies?
Search for low-cost flights to Koh Madsum, then mark the "No change fee" box directly below the "Flexible change policies" heading. It's that simple. We know that travel plans change and flexibility matters, so book with confidence with Expedia.
How can I find cheap tickets to Koh Madsum?
An effective strategy for finding cheap fares is to be flexible with your travel dates. Start by searching for your flight to Koh Madsum, then click on the "flexible dates" box to see prices for nearby days. Another handy tip? Book well ahead of time. To give you an idea of fares, HK$1,765 was the best price for a flight to Koh Madsum in the last seven days.
How much is a flight to Koh Madsum?
The cost of a round-trip flight to Koh Madsum in the last seven days fluctuated between HK$1,765 and HK$4,174. If you were journeying one way out of Phuket (HKT), you could have nabbed a cheap seat from just HK$899.
When is the cheapest time to fly to Koh Madsum?
Take off for Koh Madsum early in the week and you'll usually be rewarded with lower-priced fares. Tuesday is known for being the cheapest day to hop on a plane, followed by Monday. If you're eager to avoid the priciest flights, stay away from Saturdays.
How much is a plane ticket to Koh Madsum?
In the last seven days, plane fares cost between HK$1,765 and HK$4,174. Have a look at our fantastic deals to Koh Madsum, pick your favorite and then start packing!
What months are the cheapest to book a flight to Koh Madsum?
The ideal month to purchase cheap fares to Koh Madsum is February. It's worth remembering that in the United States, an expensive time to secure a seat is the month of December.
Flights to Koh Madsum information
Destination airport
Samui Intl. Airport
Destination airport IATA code
USM
Destination city name
Samui Intl. Airport
Return price
HK$1,765

Trending flights to Koh Madsum

Prices were available within the past 7 days and start at HK$899 for one-way flights and HK$1,765 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Singapore Airlines
Sat, 11 Oct - Tue, 14 Oct
HKG
Hong Kong SAR
USM
Koh Samui
HK$3,132 Return, just found
HK$3,132
Return
just found
Select Singapore Airlines flight, departing Sat, 11 Oct from Hong Kong SAR to Koh Samui, returning Tue, 14 Oct, priced at HK$3,132 just found
*Available to Expedia members.