Why are Bangkok to Koh Samui flights so expensive?

Koh Samui Airport (USM) is privately owned and operated by Bangkok Airways, which restricts competition. This near-monopoly allows them to charge significantly higher fares than comparable Thai island routes.

How long does the Surat Thani ferry to Koh Samui take?

The Raja Ferry (Surat Thani Car Ferry Pier to Don Sak on Samui) takes 1.5 hours. The Lomprayah catamaran from Surat Thani Pier to Na Thon takes 45–60 minutes.

Can I book a bus and ferry combination ticket?

Yes. Lomprayah, Seatran, and several online booking platforms sell joint bus + ferry tickets from Bangkok to Koh Samui. These are often the easiest and cheapest option.

Bangkok to Koh Samui — Flights, Bus-Ferry & Transfer Options

Best Option for Most Travellers

Flying via Surat Thani on a low-cost carrier is the best value — significantly cheaper than direct Bangkok Airways flights, only 1–2 hours longer total journey time.

All Transport Options

Method	Duration	Cost	Frequency
Flight	1h 15m	฿1,500–5,000	10–15 daily flights (Bangkok Airways monopoly)
Fly to Surat Thani + Ferry	3–4 hours total	฿799–2,500 (flight) + ฿180 (ferry)	Multiple daily flights; ferries run frequently
Overnight Bus + Ferry	10–13 hours total	฿600–900	Multiple daily buses from Southern Bus Terminal
Train to Surat Thani + Ferry	12–15 hours	฿600–1,100	Several daily trains; afternoon/overnight departures

Flight

฿1,500–5,000

Duration1h 15m

Frequency10–15 daily flights (Bangkok Airways monopoly)

Bangkok Airways has a near-monopoly on Bangkok–Koh Samui flights (USM airport is private, owned by Bangkok Airways). Flights depart from both BKK and DMK. Fares are significantly higher than other Thai routes — ฿1,500 is a good fare, ฿3,000+ is common.

Fly to Surat Thani + Ferry

฿799–2,500 (flight) + ฿180 (ferry)

Duration3–4 hours total

FrequencyMultiple daily flights; ferries run frequently

Fly low-cost to Surat Thani (URT) with Thai AirAsia or Nok Air, then taxi/minibus to ferry pier (45 minutes), then ferry to Koh Samui (45–90 minutes). Total cost is usually 30–50% cheaper than a direct Bangkok Airways flight.

Overnight Bus + Ferry

฿600–900

Duration10–13 hours total

FrequencyMultiple daily buses from Southern Bus Terminal

Night bus from Bangkok to Surat Thani ferry pier, then combined Seatran or Lomprayah boat to Samui. Departure around 7–8pm, arriving Samui around 8–10am.

Train to Surat Thani + Ferry

฿600–1,100

Duration12–15 hours

FrequencySeveral daily trains; afternoon/overnight departures

Scenic option. Train to Phun Phin station (Surat Thani), then shared songthaew to ferry pier. Overnight sleeper train is comfortable. Good for travellers with time and on a budget.

Tips & Things to Know

1
Bangkok Airways' monopoly on Samui Airport (USM) inflates prices. The Surat Thani alternative is almost always cheaper. Only book direct if you value the convenience.
2
Lomprayah and Seatran Discovery combo tickets (bus + ferry) from Bangkok are available from travel agents and online — these are the most popular budget option.
3
Koh Samui Airport (USM) is privately owned — departure taxes and fees are built into the Bangkok Airways fare. Additional charges appear at check-in.

Disclaimer

Transport fares, schedules, and operators change frequently. Always verify current timetables and prices before your trip. Prices shown are approximate and may vary by season, operator, and booking platform.

Frequently Asked Questions

Related guides

All Travel Planning Guides

All Transport Options

Method	Duration	Cost	Frequency
Flight	1h 15m	฿1,500–5,000	10–15 daily flights (Bangkok Airways monopoly)
Fly to Surat Thani + Ferry	3–4 hours total	฿799–2,500 (flight) + ฿180 (ferry)	Multiple daily flights; ferries run frequently
Overnight Bus + Ferry	10–13 hours total	฿600–900	Multiple daily buses from Southern Bus Terminal
Train to Surat Thani + Ferry	12–15 hours	฿600–1,100	Several daily trains; afternoon/overnight departures

Flight

฿1,500–5,000

Duration1h 15m

Frequency10–15 daily flights (Bangkok Airways monopoly)

Fly to Surat Thani + Ferry

฿799–2,500 (flight) + ฿180 (ferry)

Duration3–4 hours total

FrequencyMultiple daily flights; ferries run frequently

Overnight Bus + Ferry

฿600–900

Duration10–13 hours total

FrequencyMultiple daily buses from Southern Bus Terminal

Night bus from Bangkok to Surat Thani ferry pier, then combined Seatran or Lomprayah boat to Samui. Departure around 7–8pm, arriving Samui around 8–10am.

Train to Surat Thani + Ferry

฿600–1,100

Duration12–15 hours

FrequencySeveral daily trains; afternoon/overnight departures

Scenic option. Train to Phun Phin station (Surat Thani), then shared songthaew to ferry pier. Overnight sleeper train is comfortable. Good for travellers with time and on a budget.

Tips & Things to Know

Bangkok Airways' monopoly on Samui Airport (USM) inflates prices. The Surat Thani alternative is almost always cheaper. Only book direct if you value the convenience.

Lomprayah and Seatran Discovery combo tickets (bus + ferry) from Bangkok are available from travel agents and online — these are the most popular budget option.

Koh Samui Airport (USM) is privately owned — departure taxes and fees are built into the Bangkok Airways fare. Additional charges appear at check-in.