Boonsiri Sealine vs Seatran Discovery
Compare Boonsiri Sealine and Seatran Discovery — routes, service areas, and coverage across Thailand. See where they overlap and where each operator goes its own way.
Operator A Boonsiri Sealine vs 
Operator B Seatran Discovery What travellers say: Boonsiri Sealine vs Seatran Discovery
Both operators earn strong ratings from thousands of reviews, with Boonsiri Sealine slightly ahead on average sentiment for its door-to-door routes and Seatran Discovery noted for reliable Gulf island hops.
Boonsiri Sealine
Reviewers praise Boonsiri Sealine for seamless organization, punctual departures, friendly staff, included meals and snacks, and comfortable buses on Bangkok-to-Trat island routes, though some note longer waits between transfers, unclear itineraries, and occasional mismatches between advertised catamarans and older ferries.
Seatran Discovery
Travellers highlight Seatran Discovery for smooth, easy high-speed ferry experiences, helpful crews, good value, and convenient transfers on Koh Samui-Phangan-Tao routes, with common complaints around delays of 30-90 minutes, overly cold or weak AC, ageing boats, and chaotic luggage handling at piers.
Boonsiri edges out on overall ratings and praise for logistics while Seatran remains a solid choice for its core routes; book either operator through ThailandBoatTickets.com and connect with our 24/7 Virtual Ticket Assistant (VTA) on WhatsApp, Instagram DM, Telegram or Facebook for seamless support.
Pros & cons
Boonsiri Sealine Pros
- Well-organized door-to-door logistics with seamless bus-ferry-taxi handoffs
- Punctual departures and reliable on-time performance
- Friendly helpful staff who assist with luggage and special needs
- Good value including free meals snacks and water on many trips
- Comfortable modern buses with AC reclining seats and USB charging
Cons
- Frequent waiting times and delays of 45 min to 3 hrs especially on return legs
- Communication gaps and unclear timing or transfer info at piers
- Advertised high-speed catamaran sometimes substituted with older rusty ferry
- Inconsistent AC (freezing cold or failed hot buses)
- Reckless driving on some island minivan and songthaew transfers
Seatran Discovery Pros
- Smooth easy hassle-free journeys with clear staff guidance at piers
- Helpful friendly crew assisting with luggage and families
- Comfortable fast ferries with AC cabins recliner seats and top-deck option
- Good value for money and convenient e-ticket booking
- Reliable door-to-hotel transfers on combined packages
Cons
- Common delays of 30 min to 2 hrs especially before flights
- Unpredictable temperature (freezing AC or hot stuffy cabins)
- Ageing run-down boats and buses with broken seats and fumes
- Dirty toilets and chaotic luggage handling on arrival
- Unannounced boat changes and communication issues about piers or tickets
Service areas at a glance
Based on currently active routes for each operator.
Both operators 13
Only Boonsiri Sealine 8
Only Seatran Discovery 4
Routes & coverage compared
Both Boonsiri Sealine and Seatran Discovery operate identical routes on key Gulf of Thailand connections including Bangkok to Koh Samui and Koh Phangan, Ao Nang to Koh Samui and Koh Phangan, Chumphon to Koh Samui, plus frequent sailings among Koh Samui, Koh Phangan and Koh Tao, and onward links from those islands to Krabi, Railay, Surat Thani and Hua Hin.
Boonsiri Sealine alone serves the eastern islands with routes to Koh Chang, Koh Kood and Koh Mak from Bangkok, Pattaya, Trat and the Samui archipelago, while Seatran Discovery exclusively covers the Andaman coast with connections to Phuket, Koh Lanta, Koh Phi Phi and Khao Sok from Ao Nang, Krabi, Donsak and the Samui islands. Book both operators at ThailandBoatTickets.com where our 24/7 Virtual Ticket Assistant (VTA) is 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).
Boonsiri Sealine tickets usually fall between 920 THB–1,560 THB (median 1,290 THB), while Seatran Discovery between 680 THB–1,160 THB (median 870 THB). On the whole, Seatran Discovery offers the cheaper tickets.
Which should you pick?
Frequently asked questions
Boonsiri Sealine vs Seatran Discovery