A coastal park with a curved pathway, benches, and a lighthouse in the background.

Cheap Flights to Ko Si Chang Island from HK$596

View HK$596 flight on Sun, 23 Aug 2026Opens in a new window

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Cheap round-trip flights to Ko Si Chang Island

Prices were available within the past 7 days and start at HK$596 for one-way flights and HK$1,337 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thai Lion Mantari
Trinity Airways
HK Express
Jeju Air with Bag
JIN AIR

Frequently asked questions

How do I find cheap flights to Ko Si Chang Island that have flexible change policies?
At Expedia, we've been channeling our inner yoga master to help you locate the most flexible airfares around town. Just check the "No change fee" box directly below the filter subheading "Flexible change policies" to find your perfect flight to Ko Si Chang Island.
How can I find cheap tickets to Ko Si Chang Island?
In the last seven days, HK$1,337 was the best price for a flight to Ko Si Chang Island. If you'd love to save even more, book in advance and be flexible with your travel dates. Search for your flight to Ko Si Chang Island, then see prices for nearby days by clicking on the "flexible dates" link above.
How much is a flight to Ko Si Chang Island?
The price of a round-trip ticket to Ko Si Chang Island in the last seven days varied between HK$1,337 and HK$1,809. If you were travelling one way from Busan (PUS), you could have picked up a cheap fare from only HK$596.
When is the cheapest time to fly to Ko Si Chang Island?
If you'd rather spend your hard-earned vacation money enjoying Ko Si Chang Island rather than on getting there, jet off early in the week. The cheapest day to travel is normally Tuesday, with Monday close behind. With many folks keeping their travel to weekends, Saturday tends to have the most expensive fares.
How much is a plane ticket to Ko Si Chang Island?
In the last seven days, flights to Ko Si Chang Island ranged from HK$1,337 to HK$1,809.
What months are the cheapest to book a flight to Ko Si Chang Island?
To grab a fabulous deal to Ko Si Chang Island, try to book during the month of February when ticket prices are at their cheapest. When's the most expensive? In the USA, it's December.

Travel information

Destination airport
Don Mueang Intl.
Destination airport IATA code
DMK
Destination city name
Bangkok
Roundtrip price
HK$1,337

Trending flights to Ko Si Chang Island

Prices were available within the past 7 days and start at HK$596 for one-way flights and HK$1,337 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thai Lion Mantari

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