Koh Samui or Langkawi for a family holiday?

Langkawi is the simpler family holiday, because it needs no passport and has domestic flights and ferries. Koh Samui may suit a family that already holds passports and enjoys planning a flight. Research found no Samui family facilities, so this page gives you the questions that decide it rather than a verdict.

For the background on each, see Koh Samui and Langkawi. Our guide to choosing between Koh Samui, Lombok and a Malaysian island sets the wider frame.

What does the family have to do for each?

The table shows the steps, with sourced facts where we have them.

	Koh Samui	Langkawi islands
Passports	Needed for every child	Not needed
Stay allowed	Thai visa-free stay for Malaysians cut to 30 days from 15 September 2026 [2]	Not applicable
Getting there	A Kuala Lumpur route launched around 2011 or 2012, current schedule unverified, otherwise one stop via Bangkok [1]	Domestic flights to Penang, Kuala Lumpur and Johor Bahru among others [3]; ferry from Kuala Perlis about 1h15 by guides [4]
Boat days	Not researched	Pulau Payar from Kuah: catamaran about one hour, speedboat about 30 minutes [5]
Family facilities	Not researched	Not researched in detail

The ferry and flight times come from guides, so confirm them with the operator.

Which family questions decide it?

Answer these for your own family, and write the answers down:

• Does everyone hold a passport with enough validity on the dates?
• How long can the children sit on a flight, with or without a stop?
• Do the dates fall in a school break that fills early?
• Does the stay have a room type that fits us, and a cot if needed?
• How deep is the pool, and who watches it?
• Where is the nearest medical help, and how far is it from the room?

Any “no” or “not sure” on the first two is a reason to lean towards Langkawi. For the later ones, the answer comes from the stay, not from the island’s name.

How do boat days work for a family?

Langkawi has boat trips, such as day trips to Pulau Payar, where the crossing is about 30 minutes by speedboat or about one hour by catamaran ^[5]. With young children, ask about life jacket sizes, seating and how long the child sits. Our guide on life jackets on island boats lists the questions.

For Samui, we found nothing on boat trips, so ask the stay what is offered and how it handles children.

A better fit if…

Langkawi may be a better fit if:

• you want no passport step and a short list of legs.
• you travel with toddlers, or with older parents who dislike long transfers.
• your school-holiday dates are fixed and a delay would cost you.

Samui may be a better fit if:

• everyone holds a valid passport and the children cope with a longer day.
• you have a spare day for a flight delay or a stop.
• you want a Thai setting and can accept unresearched details.

What should you ask before you book?

• What are the exact flight or ferry times, and who protects a missed connection?
• What documents does each child need?
• What does the room price include, and what are the child rates?
• What is the cancellation rule if a flight or boat does not run?

The island trip cost calculator lets you test both with your own figures.