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Cheap Flights to Ko Mai Si from HK$421

View HK$421 flight on Thu, 3 Sept 2026Opens in a new window

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Cheap round-trip flights to Ko Mai Si

Prices were available within the past 7 days and start at HK$421 for one-way flights and HK$848 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Bangkok Airways
Mon, 3 Aug - Thu, 6 Aug
BKK
Bangkok
TDX
Trat
HK$848 Return, found 3 days ago
HK$848
Return
found 3 days ago
Select Bangkok Airways flight, departing Mon, 3 Aug from Bangkok to Trat, returning Thu, 6 Aug, priced at HK$848 found 3 days ago
Bangkok Airways
Thu, 6 Aug - Sun, 9 Aug
BKK
Bangkok
TDX
Trat
HK$859 Return, found 6 days ago
HK$859
Return
found 6 days ago
Select Bangkok Airways flight, departing Thu, 6 Aug from Bangkok to Trat, returning Sun, 9 Aug, priced at HK$859 found 6 days ago
Thai Airways International
Fri, 3 Jul - Mon, 6 Jul
HKG
Hong Kong SAR
TDX
Trat
HK$3,558 Return, found 4 days ago
HK$3,558
Return
found 4 days ago
Select Thai Airways International flight, departing Fri, 3 Jul from Hong Kong SAR to Trat, returning Mon, 6 Jul, priced at HK$3,558 found 4 days ago
Vietnam Airlines
Wed, 4 Nov - Fri, 20 Nov
DAD
Da Nang
TDX
Trat
HK$3,638 Return, found 21 hours ago
HK$3,638
Return
found 21 hours ago
Select Vietnam Airlines flight, departing Wed, 4 Nov from Da Nang to Trat, returning Fri, 20 Nov, priced at HK$3,638 found 21 hours ago
EVA Airways
Mon, 10 Aug - Mon, 17 Aug
HKG
Hong Kong SAR
TDX
Trat
HK$4,056 Return, found 8 hours ago
HK$4,056
Return
found 8 hours ago
Select EVA Airways flight, departing Mon, 10 Aug from Hong Kong SAR to Trat, returning Mon, 17 Aug, priced at HK$4,056 found 8 hours ago

Frequently asked questions

How do I find cheap flights to Ko Mai Si that have flexible change policies?
When it comes to traveling these days, flexibility is key. That's why we have a "No change fee" search function to help you track down flexible, affordable tickets to Ko Mai Si. It's to the left of your screen just below the "Flexible change policies" heading.
How can I find cheap tickets to Ko Mai Si?
You'll always get an unbeatable deal with Expedia, but our "flexible dates" feature makes it that much easier. Enter your preferred flight date, then click on the flexible dates link above to compare the cheapest prices for nearby days. HK$848 was the lowest price for a flight to Ko Mai Si in the last seven days.
How much is a flight to Ko Mai Si?
There were loads of affordable fares for the taking in the last seven days, with the cost of a round-trip flight to Ko Mai Si varying between HK$848 and HK$4,056. Many lucky holiday makers nabbed one-way flights from Bangkok (BKK) for just HK$421.
When is the cheapest time to fly to Ko Mai Si?
If you'd rather spend your vacation dollars enjoying the delights of Ko Mai Si rather than on your trip there, leave early in the week. The cheapest day to fly is usually Tuesday, followed by Monday. With many people traveling over the weekend, Saturday typically has the costliest fares.
How much is a plane ticket to Ko Mai Si?
In the last seven days, tickets to Ko Mai Si ranged between HK$848 and HK$4,056. Prices depend on a number of things, particularly the time of departure, seating class, airline and how early you make your booking.
What months are the cheapest to book a flight to Ko Mai Si?
February is the most affordable month to reserve a seat for your Ko Mai Si break. Tickets cost the most over the month of December, so avoid this time if you can.

Travel information

Destination airport
Trat
Destination airport IATA code
TDX
Destination city name
Trat
Return price
HK$848

Trending flights to Ko Mai Si

Prices were available within the past 7 days and start at HK$421 for one-way flights and HK$848 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thai Airways International
Fri, 3 Jul - Mon, 6 Jul
HKG
Hong Kong SAR
TDX
Trat
HK$3,558 Return, found 4 days ago
HK$3,558
Return
found 4 days ago
Select Thai Airways International flight, departing Fri, 3 Jul from Hong Kong SAR to Trat, returning Mon, 6 Jul, priced at HK$3,558 found 4 days ago

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