Cheap Flights to Koh Madsum from HK$552

View HK$552 flight on Fri, 17 Oct 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$552 for one-way flights and HK$1,796 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bangkok Airways
Wed, 24 Jun - Fri, 26 Jun
HKT
Phuket
USM
Koh Samui
HK$1,796 Return, found 1 day ago
HK$1,796
Return
found 1 day ago
Select Bangkok Airways flight, departing Wed, 24 Jun from Phuket to Koh Samui, returning Fri, 26 Jun, priced at HK$1,796 found 1 day ago
Scoot
Mon, 11 May - Tue, 19 May
KUL
Kuala Lumpur
USM
Koh Samui
HK$2,313 Return, found 5 days ago
HK$2,313
Return
found 5 days ago
Select Scoot flight, departing Mon, 11 May from Kuala Lumpur to Koh Samui, returning Tue, 19 May, priced at HK$2,313 found 5 days ago
Singapore Airlines
Tue, 14 Oct - Tue, 21 Oct
HKG
Hong Kong SAR
USM
Koh Samui
HK$2,631 Return, found 6 hours ago
HK$2,631
Return
found 6 hours ago
Select Singapore Airlines flight, departing Tue, 14 Oct from Hong Kong SAR to Koh Samui, returning Tue, 21 Oct, priced at HK$2,631 found 6 hours ago
Vietnam Airlines
Fri, 19 Sept - Fri, 26 Sept
PQC
Phu Quoc
USM
Koh Samui
HK$3,456 Return, found 1 day ago
HK$3,456
Return
found 1 day ago
Select Vietnam Airlines flight, departing Fri, 19 Sept from Phu Quoc to Koh Samui, returning Fri, 26 Sept, priced at HK$3,456 found 1 day ago
EVA Airways
Sun, 21 Sept - Wed, 24 Sept
HKG
Hong Kong SAR
USM
Koh Samui
HK$4,085 Return, just found
HK$4,085
Return
just found
Select EVA Airways flight, departing Sun, 21 Sept from Hong Kong SAR to Koh Samui, returning Wed, 24 Sept, priced at HK$4,085 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$1,796 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$1,796 and HK$4,085. If you were journeying one way out of Phuket (HKT), you could have nabbed a cheap seat from just HK$552.
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$1,796 and HK$4,085. 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$1,796

Trending flights to Koh Madsum

Prices were available within the past 7 days and start at HK$552 for one-way flights and HK$1,796 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Singapore Airlines
Tue, 14 Oct - Tue, 21 Oct
HKG
Hong Kong SAR
USM
Koh Samui
HK$2,631 Return, found 6 hours ago
HK$2,631
Return
found 6 hours ago
Select Singapore Airlines flight, departing Tue, 14 Oct from Hong Kong SAR to Koh Samui, returning Tue, 21 Oct, priced at HK$2,631 found 6 hours ago
*Available to Expedia members.