Seudamgo Catamaran vs Boonsiri Sealine
Compare Seudamgo Catamaran and Boonsiri Sealine — routes, service areas, and coverage across Thailand. See where they overlap and where each operator goes its own way.
Operator A Seudamgo Catamaran vs 
Operator B Boonsiri Sealine What travellers say: Seudamgo Catamaran vs Boonsiri Sealine
Both operators earn nearly identical high average ratings and strong praise for organisation and staff, yet differ in review volume, route specifics, and the frequency of certain complaints.
Seudamgo Catamaran
Reviewers rate Seudamgo Catamaran 4.45/5 across 395 reviews, with 86.6% positive. They consistently highlight smooth logistics, friendly staff, comfortable vehicles on some classes, door-to-door service, and free meals, while noting recurring issues with optimistic arrival times due to Koh Mak stops, reckless driving, language barriers, and communication gaps at pickups.
Boonsiri Sealine
Reviewers rate Boonsiri Sealine 4.47/5 across 2727 reviews, with 88% positive. They frequently praise seamless transfers, punctual departures, helpful staff, included snacks and meals, and modern buses on core routes, though they report occasional long waits between legs, AC temperature problems, and mismatches between advertised catamarans and actual vessels.
Sentiment is comparably positive for both, with Boonsiri backed by far more reviews; travellers seeking reliable Thailand island transfers can book either operator confidently through ThailandBoatTickets.com, where the 24/7 Virtual Ticket Assistant (VTA) on WhatsApp, Instagram DM, Telegram or Facebook can help confirm details in advance.
Service areas at a glance
Based on currently active routes for each operator.
Both operators 10
Only Seudamgo Catamaran 3
Only Boonsiri Sealine 11
Routes & coverage compared
Both Seudamgo Catamaran and Boonsiri Sealine operate the same routes from Bangkok to Koh Chang, Koh Kood, Koh Mak, Koh Phangan, Koh Samui, Koh Tao and Surat Thani, plus inter-island links such as Koh Kood to Koh Mak, Koh Phangan and Koh Tao, Koh Mak to Koh Kood and Pattaya, and Koh Phangan or Koh Samui back to Bangkok. Book any of these overlapping routes on ThailandBoatTickets.com where our 24/7 Virtual Ticket Assistant (VTA) is available on WhatsApp, Instagram DM, Telegram and Facebook.
Seudamgo Catamaran alone runs Bangkok to Koh Samet, Rayong to Koh Chang/Koh Kood/Koh Mak, and extra Trat connections including Trat to Pattaya and Suvarnabhumi Airport, while Boonsiri Sealine alone covers southern routes from Ao Nang, Chumphon, Hua Hin, Krabi and Nakhon Si Thammarat to Koh Phangan, Koh Samui and Koh Tao plus many Koh Chang departures to those same islands. For either operator's unique routes, ThailandBoatTickets.com is the best place to book with our 24/7 Virtual Ticket Assistant (VTA) available on WhatsApp, Instagram DM, Telegram and Facebook.
Routes both operators run
Same departure and destination — true head-to-head options.
Price distribution
How ticket prices spread across each operator's routes (THB).
Seudamgo Catamaran tickets usually fall between 950 THB–1,110 THB (median 1,050 THB), while Boonsiri Sealine between 920 THB–1,560 THB (median 1,290 THB). On the whole, Seudamgo Catamaran offers the cheaper tickets.
Which should you pick?
Frequently asked questions
Seudamgo Catamaran vs Boonsiri Sealine