The 7 Most Popular Islands in Thailand
Thailand’s islands are among the country’s biggest attractions, drawing millions of visitors each year to destinations across the Andaman Sea and Gulf of Thailand. From major resort islands and famous sightseeing destinations to easy day-trip escapes, the country’s most popular islands attract travellers for very different reasons.
But popularity isn’t the same as beauty, tranquillity or our personal opinion of which island is best. For this guide, we’ve looked at the strongest available tourism statistics, visitor counts, national park admissions and arrival data to identify seven of the most popular islands in Thailand based on the number of people actually visiting them.
Because Thailand doesn’t publish a single nationwide ranking of individual islands, the available figures aren’t always directly comparable. We’ll explain those limitations where they matter while exploring what makes each island so popular — and what type of Thailand holiday each is best suited to.
Quick Summary: Thailand’s Most Popular Islands
Thailand’s most popular islands attract travellers for very different reasons. Some are major holiday destinations in their own right, while others receive enormous numbers of day visitors because of their proximity to places such as Pattaya, Bangkok, Phuket and Krabi.
The table below summarises the seven islands identified through our research and the main reason you might choose each one.
| Island | Go If You Want… |
|---|---|
| Phuket | Maximum choice of beaches, accommodation, restaurants, nightlife and activities |
| Koh Samui | A developed tropical resort island with beaches and excellent holiday infrastructure |
| Koh Larn | An easy beach and island day trip from Pattaya |
| Phi Phi Islands | Thailand’s iconic limestone scenery, famous bays and boat-trip experiences |
| Koh Phangan | Beaches and island life with a strong social and nightlife scene available |
| Koh Samet | A convenient tropical island escape from Bangkok without needing to fly |
| Koh Chang | Beaches, rainforest and a larger island with plenty of natural surroundings |
These aren’t necessarily Thailand’s seven best islands. They are seven destinations for which the available evidence shows exceptionally high visitor demand — and understanding why each became popular is a much better starting point for deciding which one suits your trip.
How We Identified Thailand’s Most Popular Islands
There is no single official dataset ranking every island in Thailand by annual visitor numbers. Tourism figures are reported in different ways, including provincial visitor statistics, national park admissions, ferry and passenger movements, and destination-level estimates from tourism authorities.
To identify the seven islands in this guide, we compared the strongest and most recent data available from official sources and credible tourism reporting, looking for evidence of consistently high visitor volumes rather than relying on reputation alone.
This means the figures are not always directly comparable. Phuket, for example, is recorded at provincial level and also serves as a major gateway to other Andaman destinations, while islands such as Koh Larn and the Phi Phi Islands receive large numbers of day visitors. We have taken these differences into account rather than treating the available figures as a precise league table.
The result is an evidence-based picture of which Thai islands attract exceptionally large numbers of visitors and why they have become so popular.
1. Phuket — Thailand’s Tourism Powerhouse
Phuket operates on a scale unlike any other Thai island. The province recorded approximately 13.1 million visitors in 2024, placing it among Thailand’s most heavily visited destinations and comfortably demonstrating the enormous scale of tourism centred on the island.
Its popularity comes partly from accessibility. Phuket International Airport provides direct connections with destinations across Asia, the Middle East, Europe and beyond, while the island also has extensive road, ferry and speedboat connections. Once visitors arrive, they can choose between major resort areas including Patong, Kata, Karon, Kamala and Bang Tao, alongside Phuket Old Town and quieter coastal communities.
That variety is one of Phuket’s greatest strengths. Travellers can combine beaches with nightlife, restaurants, shopping, cultural attractions, family activities and boat trips, while accommodation ranges from inexpensive guesthouses and hostels to some of Thailand’s most luxurious resorts.
Understanding Phuket’s Visitor Numbers
Phuket’s visitor statistics do require some context. The figures are reported for Phuket Province rather than exclusively for travellers holidaying on Phuket Island, and the island is also one of Southern Thailand’s most important transport gateways.
Some visitors arriving through Phuket continue to Phi Phi, Phang Nga, Krabi and other Andaman destinations, while others use Phuket as a base for day trips throughout the surrounding region. The provincial total therefore shouldn’t be interpreted as 13.1 million people choosing Phuket alone as their final holiday destination.
Even allowing for that distinction, Phuket’s enormous accommodation industry, international connectivity and concentration of major resort areas leave little doubt that it belongs at the top of any discussion of Thailand’s most popular islands.
Best for: Travellers wanting the widest choice of beaches, accommodation, restaurants, nightlife and activities in one island destination.
2. Koh Samui — Thailand’s Leading Gulf Resort Island
Koh Samui is one of Thailand’s most established island destinations and the leading resort island in the Gulf of Thailand. Recent tourism reporting indicates that approximately 4.4 million visitors travelled to Koh Samui in 2024, placing it firmly among the country’s most heavily visited islands.
Accessibility plays an important role in that popularity. Koh Samui has its own airport, with frequent connections to Bangkok and other regional destinations, while ferries connect the island with the mainland and neighbouring Koh Phangan and Koh Tao. This makes Samui considerably easier to reach than many of Thailand’s smaller islands.
The island also offers enough variety for an entire holiday. Chaweng provides the largest concentration of restaurants, shopping, nightlife and accommodation, while areas such as Lamai, Bophut and Maenam offer different combinations of beaches, resorts and a more relaxed atmosphere. Waterfalls, temples, viewpoints, boat trips and the surrounding Ang Thong Marine National Park add alternatives to spending every day on the beach.
Unlike islands whose visitor numbers are driven heavily by day trips, Koh Samui is predominantly a destination where travellers come to stay. Its extensive resort infrastructure, airport and broad range of experiences have helped it develop from a tropical island escape into one of Thailand’s major international holiday destinations.
Best for: Travellers wanting a developed tropical island with beautiful beaches, extensive resort choices and plenty to do without giving up the feeling of an island holiday.
3. Koh Larn — Thailand’s Remarkably Popular Day-Trip Island
Koh Larn may be the most surprising island on this list. Sitting just offshore from Pattaya, the relatively small island has been reported as receiving around 10,000 visitors per day, giving it a level of visitor traffic that rivals some of Thailand’s much larger and more internationally famous island destinations.
Its popularity is closely connected to Pattaya. Regular ferries and speedboats depart from Bali Hai Pier, allowing visitors to exchange the busy resort city for an island beach in a relatively short journey. This makes Koh Larn particularly attractive to travellers who want an island experience without changing hotels or adding another major destination to their itinerary.
Despite its compact size, Koh Larn has several beaches with noticeably different settings. Tawaen Beach receives much of the island’s visitor traffic and offers plenty of facilities, while beaches such as Samae, Tien and Nual provide alternatives for travellers exploring beyond the principal arrival points. Motorbike taxis and songthaews make it relatively straightforward to move between them.
Koh Larn’s visitor numbers need to be understood differently from those of Phuket or Koh Samui. A large proportion of its visitors are day-trippers rather than overnight guests, so its popularity reflects the number of people visiting the island rather than the size of its accommodation industry.
That distinction is precisely why Koh Larn belongs on this list. Popularity is about how many people actually visit, and its accessibility from one of Thailand’s busiest tourism centres brings an extraordinary number of travellers onto the island.
Best for: Travellers staying in Pattaya who want an easy island day trip with beaches, swimming and a change of scenery from the mainland.
4. Phi Phi Islands — Thailand’s Iconic Island Experience
Few island destinations are as closely associated with Thailand as the Phi Phi Islands. Rising dramatically from the Andaman Sea between Phuket and Krabi, their limestone cliffs, turquoise bays and famous beaches have made the archipelago one of the country’s most recognisable tourism destinations.
Visitor numbers reflect that reputation. Hat Noppharat Thara–Mu Ko Phi Phi National Park recorded around 1.87 million visitors in the 2025 fiscal year, although the park covers a wider area than the Phi Phi Islands alone. Maya Bay provides another indication of the extraordinary demand, attracting more than 1.6 million visitors during the period from October 2023 to July 2024 before its annual environmental closure.
The Phi Phi experience is also different from Phuket or Koh Samui. Koh Phi Phi Don is the archipelago’s inhabited tourism centre, with hotels, restaurants, nightlife and beaches that support longer stays. However, enormous numbers of travellers experience Phi Phi on day tours from Phuket and Krabi, visiting locations around Phi Phi Leh and Phi Phi Don before returning to the mainland or another island.
Maya Bay remains the biggest individual draw, but it is only part of the appeal. Boat trips reveal towering limestone formations, sheltered bays, snorkelling locations and some of the Andaman region’s most dramatic coastal scenery. Easy access from two major tourism centres has helped turn that natural spectacle into one of Thailand’s busiest island excursions.
As with several destinations in this ranking, the available statistics shouldn’t be treated as an exact count of people holidaying on the islands. What they demonstrate clearly is the enormous volume of travellers drawn to the Phi Phi archipelago each year.
Best for: Travellers who want to experience some of Thailand’s most famous island scenery, whether as a day trip or as part of a longer stay in the Andaman region.
5. Koh Phangan — Much More Than the Full Moon Party
Koh Phangan is one of Thailand’s most internationally recognised islands, largely because of the Full Moon Party at Haad Rin. But its popularity now extends well beyond the monthly beach party, with recent tourism figures indicating approximately 1.77 million visitors in 2025.
Located in the Gulf of Thailand between Koh Samui and Koh Tao, Koh Phangan is reached primarily by ferry. Connections from the mainland and neighbouring islands make it a natural addition to Gulf of Thailand itineraries, while its proximity to Koh Samui provides access to one of the region’s major tourism gateways.
The Full Moon Party remains an important driver of visitor numbers, attracting large crowds to Haad Rin during peak events. Away from the party, however, much of Koh Phangan feels very different. Beaches and communities around the island have developed strong followings among travellers interested in longer stays, wellness retreats, yoga, diving, nature and a more relaxed style of island life.
This broader appeal helps explain why Koh Phangan attracts substantially more visitors than its party-island reputation alone might suggest. Some travellers arrive specifically for an event and stay only briefly, while others deliberately choose quieter parts of the island and may have little involvement with Haad Rin at all.
That combination has given Koh Phangan an unusual tourism identity: it can be one of Thailand’s liveliest islands at certain times of the month while remaining comparatively peaceful across much of the island.
Best for: Travellers wanting beaches and independent island life with the option of a strong social and nightlife scene.
6. Koh Samet — Bangkok’s Popular Island Escape
Koh Samet attracts a different tourism market from many of Thailand’s famous southern islands. Located off the coast of Rayong Province, its relative proximity to Bangkok has made it one of the country’s most accessible island escapes, with around one million visitors recorded through recent national park statistics.
For travellers starting in Bangkok, reaching Koh Samet requires no domestic flight. Road connections lead southeast to Ban Phe, where regular boats make the short crossing to the island. That accessibility has made Samet particularly popular for weekends and short beach breaks, including with Thai domestic travellers, Bangkok residents and international visitors incorporating an island stay into a wider trip through Central Thailand.
Most of Koh Samet forms part of Khao Laem Ya–Mu Ko Samet National Park, and the island packs numerous beaches into a relatively small area. Sai Kaew Beach is the busiest tourism centre, while beaches farther south generally become smaller and quieter. Accommodation ranges from simple beachside properties to more comfortable resorts, making short stays straightforward without the scale of development found on Phuket or Koh Samui.
Its visitor statistics need some qualification because national park admissions aren’t an exact measure of tourists staying specifically on Koh Samet. Nevertheless, the consistently high volume reflects the island’s important place in Thailand’s tourism landscape.
Koh Samet demonstrates another reason an island can become exceptionally popular: convenience. It doesn’t need an international airport or worldwide reputation when one of Southeast Asia’s largest cities provides an enormous potential visitor market only a few hours away.
Best for: Travellers wanting an accessible island and beach break from Bangkok without flying to Southern Thailand.
7. Koh Chang — Thailand’s Popular Eastern Island
Koh Chang completes our seven with a very different style of island experience. Located in Trat Province close to Thailand’s border with Cambodia, the country’s second-largest island attracts around one million visitors annually, while recent travel data also points to growing interest among international travellers.
Much of Koh Chang’s appeal comes from the balance between tourism and nature. Its mountainous interior remains heavily forested, with waterfalls, viewpoints and dense tropical vegetation separating developed areas along the coast. Beaches including White Sand Beach, Klong Prao and Kai Bae provide the main tourism centres, while smaller communities offer quieter alternatives.
Reaching Koh Chang takes more effort than travelling to Phuket or Koh Samui. There is no airport on the island itself, so most visitors arrive by road from Bangkok or via nearby Trat Airport before taking a vehicle ferry across to Koh Chang. Once there, the island is large enough to reward exploration rather than functioning simply as a beach resort or day-trip destination.
That relative separation hasn’t prevented Koh Chang from developing a substantial tourism industry. Resorts, guesthouses, restaurants, diving and snorkelling trips, boat excursions and neighbouring islands provide enough variety for longer stays, while the island retains considerably more undeveloped landscape than Thailand’s largest resort destinations.
Koh Chang’s popularity shows that high visitor numbers don’t necessarily require intense urban development. For many travellers, the combination of beaches, rainforest and established tourism infrastructure is precisely the attraction.
Best for: Travellers wanting a larger Thai island where beaches and tourism facilities are combined with rainforest, nature and plenty of space to explore.
Most Popular Doesn’t Necessarily Mean Best
Thailand’s most visited islands became popular for good reasons. Easy transport connections, beautiful beaches, established accommodation, restaurants, activities and access to famous attractions make them straightforward destinations to include in a Thailand holiday.
But popularity doesn’t necessarily mean an island will be the best choice for you.
High visitor numbers can also bring busier beaches, heavier development, higher prices and greater pressure on transport and infrastructure. Conversely, that same popularity often provides advantages such as more accommodation choices, better connections, organised activities and a wider range of places to eat and things to do.
The seven islands in this guide also demonstrate how differently popularity can develop. Phuket and Koh Samui support major resort industries, Koh Larn and Phi Phi receive enormous numbers of day visitors, Koh Samet benefits from its accessibility from Bangkok, while Koh Phangan and Koh Chang attract travellers looking for quite different styles of island holiday.
Visitor numbers are therefore most useful as an indication of where travellers are going, rather than a judgement about which Thai islands are the most beautiful or rewarding.
Choosing the right island ultimately depends on the experience you want — whether that means nightlife and convenience, iconic scenery, an easy day trip, a short beach escape or more time surrounded by nature.
What About Koh Tao and Koh Lanta?
Two notable islands missing from our seven are Koh Tao and Koh Lanta. Both are established Thai tourism destinations and regularly appear among recommendations for the country’s best islands, but popularity by reputation isn’t necessarily the same as total visitor volume.
Koh Tao
Koh Tao has an international reputation far greater than its small size might suggest. The island is particularly famous for scuba diving and attracts backpackers, independent travellers and visitors combining it with Koh Samui and Koh Phangan.
However, available arrival data indicates considerably lower overall visitor volumes than the busiest islands in this guide. A detailed tourism study estimated approximately 477,000 boat arrivals in 2023, with a small proportion representing local rather than tourist movements.
That still represents substantial tourism for such a small island, but the available evidence doesn’t currently justify placing Koh Tao among our seven most popular by total visitor numbers.
Koh Lanta
Koh Lanta is another of Thailand’s best-known island destinations, particularly among travellers looking for a more relaxed alternative to Phuket and the Phi Phi Islands.
Its beaches, established accommodation industry and comparatively laid-back atmosphere make it a significant destination on the Andaman coast. However, reliable island-level visitor statistics are more difficult to isolate, and the evidence we found doesn’t demonstrate visitor volumes comparable with the seven destinations included above.
Neither island’s omission should be interpreted as a judgement about whether it is worth visiting. In fact, some travellers may prefer Koh Tao or Koh Lanta precisely because they attract fewer visitors than Thailand’s busiest islands.
Which Popular Thai Island Should You Choose?
Thailand’s most popular islands offer very different experiences, so the busiest or most famous destination won’t necessarily be the right choice for every traveller. Start with the type of island holiday you want and use the differences between these seven destinations to narrow your options.
| Island | Choose It If You Want… |
|---|---|
| Phuket | The greatest choice of beaches, hotels, restaurants, nightlife and activities |
| Koh Samui | A developed tropical resort island with beaches, convenience and plenty to do |
| Koh Larn | An easy island and beach day trip while staying in Pattaya |
| Phi Phi Islands | Iconic limestone scenery, famous bays and a memorable Andaman boat trip |
| Koh Phangan | Beaches and independent island life with nightlife and a strong social scene available |
| Koh Samet | A convenient island escape that can be reached from Bangkok without flying |
| Koh Chang | Beaches and established tourism surrounded by rainforest and a more natural landscape |
There is no single island that is best for everyone. Phuket and Koh Samui provide the greatest convenience and choice, while Koh Chang offers considerably more natural surroundings. Phi Phi is difficult to match for iconic scenery, Koh Phangan combines several very different styles of island travel, and Koh Larn and Koh Samet make island experiences accessible without travelling deep into Southern Thailand.
The best choice is therefore less about which island is most popular and more about why it became popular — and whether those same reasons match the holiday you want.
Frequently Asked Questions: Most Popular Islands In Thailand
What is the most popular island in Thailand?
Phuket is Thailand’s largest tourism island and receives visitor volumes far beyond those recorded by other individual island destinations. Phuket Province recorded approximately 13.1 million visitors in 2024, although some use the island and its international airport as a gateway to other destinations in the Andaman region.
What is the most visited island in Thailand?
The available tourism data strongly indicates that Phuket is Thailand’s most visited island. However, Thailand does not publish a single national dataset directly comparing visitor numbers for every island, so figures from different destinations need to be interpreted carefully.
Which is more popular, Phuket or Koh Samui?
Phuket receives substantially more visitors overall than Koh Samui. Both are major international resort islands, but Phuket has a much larger tourism industry and also functions as an important transport hub for the wider Andaman region. Koh Samui offers a more concentrated island-resort experience in the Gulf of Thailand.
What is the most popular Thai island for first-time visitors?
Phuket and Koh Samui are particularly straightforward choices for first-time visitors because both have airports, extensive accommodation, established tourism infrastructure and plenty of beaches and activities. Phuket provides greater overall variety, while Koh Samui offers a more traditional resort-island experience.
What is the most popular island near Bangkok?
Koh Samet is one of the most popular island escapes accessible from Bangkok. Travellers can reach Ban Phe in Rayong Province by road and then take a short boat journey to the island, making it particularly suitable for weekends and shorter beach trips.
What is the most popular island near Pattaya?
Koh Larn is by far the most popular island excursion from Pattaya. Regular ferries and speedboats leave from Bali Hai Pier, and the island reportedly receives around 10,000 visitors per day during recent periods.
Are Thailand’s most popular islands also its best islands?
Not necessarily. Popular islands generally offer good accessibility, accommodation and tourism infrastructure, but they can also be busier and more developed. Travellers seeking quieter beaches, diving, nature or a slower island experience may prefer destinations that receive fewer visitors.
Continue Exploring Thailand
Planning more of your trip? Start with our Thailand Travel Guide for a broader look at where to go, what to see and how the country’s different destinations fit together.
Many of Thailand’s best-known island destinations are found in the south. Our Southern Thailand Travel Guide explores the region in more detail, including its Andaman and Gulf coasts, islands, beaches, national parks and major destinations.
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Where to Go in Thailand — Explore Thailand’s major regions and destinations to decide which part of the country best matches the trip you want to take.
What Are the Must-See Attractions in Thailand? — Discover the landmarks, natural wonders and experiences that have become essential stops on many Thailand itineraries.
About the Author
David Hibbins is a travel publisher, destination researcher and the creator of Travel With Insight.
Through years of travel, tourism and publishing projects across Southeast Asia, he has developed a particular interest in how travellers research destinations, compare experiences and make travel decisions.
Rather than relying on popularity rankings, marketing claims or generic “best of” lists, David’s work focuses on helping travellers understand why a destination may be right for them. His guides are designed to provide practical frameworks that help people evaluate destinations and choose experiences that match their own interests, travel style and travel goals.
As the creator of Travel With Insight, David regularly researches destinations, traveller behaviour and the evolving ways people discover and plan travel online. His work explores destination discovery, regional travel planning and the factors that shape memorable travel experiences, with the goal of helping readers travel with greater confidence and deeper understanding.
Explore More Travel Resources
If you’re looking for more travel inspiration, Go Find Asia explores the best places across Asia for beaches, food, culture, hiking, wildlife and unforgettable experiences. For travellers planning a visit to Phuket, Resurgence Travel offers local travel guides, suggested itineraries and personalised tours designed to help you experience the island with confidence.
