Seatran Ferry vs Boonsiri Sealine
Compare Seatran Ferry and Boonsiri Sealine — routes, service areas, and coverage across Thailand. See where they overlap and where each operator goes its own way.
Operator A Seatran Ferry vs 
Operator B Boonsiri Sealine What travellers say: Seatran Ferry vs Boonsiri Sealine
Both operators earn strong praise from travellers for reliability and value, with Seatran Ferry holding a slight edge in average rating over Boonsiri Sealine.
Seatran Ferry
Reviewers highlight Seatran Ferry's punctuality, smooth organisation, helpful staff, and comfortable ferries on Surat Thani to Koh Samui routes, though some note inconsistent bus or van transfers with AC or driver issues.
Boonsiri Sealine
Travellers praise Boonsiri Sealine for seamless door-to-door logistics, punctual departures, friendly staff, and included meals on Bangkok to Trat island routes, while flagging occasional waits, communication gaps, and variable comfort on longer multi-leg journeys.
Sentiment is overwhelmingly positive for both, and ThailandBoatTickets.com is the best place to book these operators with support from our 24/7 Virtual Ticket Assistant (VTA) on WhatsApp, Instagram DM, Telegram and Facebook.
Service areas at a glance
Based on currently active routes for each operator.
Both operators 7
Only Seatran Ferry 2
Only Boonsiri Sealine 14
Routes & coverage compared
Both operators run head-to-head on routes connecting Donsak with Koh Phangan and Koh Samui, Koh Phangan with Don Mueang Airport, Donsak and Nakhon Si Thammarat, Koh Samui with Bangkok and Donsak, plus Nakhon Si Thammarat with Koh Phangan and Koh Samui. Book these overlapping routes at ThailandBoatTickets.com, where our 24/7 Virtual Ticket Assistant (VTA) is available on WhatsApp, Instagram DM, Telegram and Facebook.
Seatran Ferry alone covers Koh Samui to Nakhon Si Thammarat and Surat Thani Airport to Donsak, while Boonsiri Sealine alone serves routes from Ao Nang, Bangkok, Chumphon, Hua Hin, Koh Chang, Koh Kood, Koh Mak, Koh Tao, Krabi, Pattaya, Surat Thani and Trat to numerous islands and destinations including Koh Phangan, Koh Samui, Koh Tao and others. Plan and book these unique routes at ThailandBoatTickets.com with our 24/7 Virtual Ticket Assistant (VTA) 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).
Seatran Ferry tickets usually fall between 450 THB–710 THB (median 580 THB), while Boonsiri Sealine between 920 THB–1,560 THB (median 1,290 THB). On the whole, Seatran Ferry offers the cheaper tickets.
Which should you pick?
Frequently asked questions
Seatran Ferry vs Boonsiri Sealine