Checked offer from Siem Reap to Koh Samui: Flight (1 stop), about 2h 10min, from €176. Main companies selling this route on 12Go (checked on October 13, 2026): Bangkok Airways; main departure point: Siem Reap Angkor International Airport.
Land border closed: that is why we recommend the plane
The land crossings between Thailand and Cambodia have been suspended since June 2025 (UK Foreign Office travel advice, checked on 8 October 2026). There is currently no direct bus, minivan or boat between Siem Reap and Koh Samui: that is why this page recommends the plane. On 12Go, 17 flights were listed for a departure on 24 October 2026, from €313.
One option to get from Siem Reap to Koh Samui
Select an option below to see the route details and compare prices. Secure booking via our partner 12go.asia.
Companies selling this route on 12Go
Offers listed on 12Go on October 13, 2026 for a departure on November 3, 2026. Timetables and prices change with the date: check them before booking.
| Company | Mode | Departs from | From | Offers |
|---|---|---|---|---|
| Bangkok Airways | Flight | Siem Reap Angkor International Airport | €299 | 16 |
Activate an eSIM before you go: internet the moment you land, no SIM to swap, zero roaming fees.
Practical tips
The situation can change. Before planning an overland trip between Thailand and Cambodia, check your government's travel advice and the official e-Visa website, evisa.gov.kh.
Many travel blogs still describe buses between Bangkok and Cambodia via Poipet or Koh Kong. That information dates from before June 2025.
Cambodia's land borders with Vietnam (Bavet) and Laos (Tropaeng Kreal) were open and accepted the Cambodian e-Visa in October 2026.
The journey experience
Until June 2025, this trip could be made overland. Since then, the land crossings between Thailand and Cambodia have been suspended, and the UK Foreign Office advises against all but essential travel within 20 km of the border (checked on 8 October 2026).
Today, the practical way to travel from Siem Reap to Koh Samui is by plane: 17 flights were listed on 12Go for a departure on 24 October 2026, from €176 (typically up to €197).
If you read about a direct bus on an older blog or forum, that information is out of date.
Frequently asked questions — Siem Reap → Koh Samui
Not at the moment. The land border between Thailand and Cambodia has been closed since June 2025, and the UK Foreign Office says the crossings continue to be suspended (checked on 8 October 2026). On 12Go, only flights could be booked for this trip.
By plane: Flights with 1 stop take 2h10–2h25, from €176 (typical up to €197).
We do not know. Before travelling, check your government's latest travel advice and the official Cambodian e-Visa website (evisa.gov.kh), which lists the Poipet and Cham Yeam checkpoints as temporarily closed for e-Visa entry.
Why visit Koh Samui?
- ✓ Relax on the white sands of Chaweng Beach, famous for its vibrant atmosphere and nightlife.
- ✓ Explore the majestic Big Buddha (Phra Yai) temple, offering panoramic views.
- ✓ Discover the unique geological formations of Hin Ta & Hin Yai (Grandfather and Grandmother Rocks).
- ✓ Swim in the refreshing cascades of Na Muang Waterfall and visit the secret garden.
- ✓ Indulge in authentic Thai cuisine at local markets and beachfront restaurants.
When to visit Koh Samui?
TROPICAL HUMID CLIMATE
December to April — dry season with abundant sunshine and pleasant temperatures for beach activities.
What to do in Koh Samui?
Local experiences, must-see sights and activities selected for you
How long to visit Koh Samui?
For a first-time independent traveler, a 5-day trip to Koh Samui allows you to enjoy the beaches, explore the local markets, and perhaps take a day trip to the Ang Thong Marine Park. With 7-10 days, you can delve deeper, discover less touristy spots, enjoy water sports, or even learn to dive. Focus on your must-do activities and don't try to cram too much.
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