Krabi to Koh Lanta

By minivan from Krabi airport (until 20:30, about ฿400–540, 2–2.5 hours), Krabi Town or Ao Nang, all with drops at Lanta hotels. From Ao Nang or Railay there's also Bundhaya's speedboat at 10:10 or 10:30, all year. Boats from Krabi Town run only from November to April. A private car is about ฿2,100–3,300.

Take a minivan from the airport, which runs from about 08:00 to 20:30 and drops at your Lanta hotel in 2–2.5 hours for about ฿400–540. After the last van, book a private car, about ฿2,100–3,300 and two hours.

Yes, shared minivans. Jijie leaves hourly from 08:30 to 18:30 and At Lanta Vacation runs until 20:30, both for about ฿400–430 with a drop at your hotel. Book online or at the counters in arrivals.

From Ao Nang and Railay, yes, all year. Bundhaya's speedboat leaves at 10:10 and 10:30 for about ฿1,215. From Krabi Town's Klong Jilad pier, boats run only from November to April, including the Lanta Super Concord ferry at 11:00 for about ฿516.

About 2–2.5 hours by van from the airport, 2.5–3 from Krabi Town and about three from Ao Nang, plus any wait at the car ferry, which can be hours in December and January. The speedboat from Ao Nang takes about 1h50 and from Railay about 1h10.

By Bundhaya's speedboat from Nopparat Thara pier at 10:10 (about ฿1,215, all year), or by minivan with a drop at your Lanta beach, about three hours for ฿400–585. From November the Ao Nang Princess ferry (10:30, about ฿670) and more speedboats run too.

Not yet from the mainland. Lanta's two islands are joined by the Siri Lanta bridge, but you still cross a short car ferry from the mainland to Lanta Noi. A mainland bridge has been contracted, with opening expected around 2029.

Yes. It's about 80–100 km by road, roughly two hours, with one short car ferry to Lanta Noi and the Siri Lanta bridge onto Lanta Yai. That's the route every van and private car takes. Outside December and January the ferry is a short wait; in those months the line can add an hour or more, so leave early.

Two ways. A shared minivan with a drop at your Lanta hotel, from the airport until 20:30 (about ฿400–540) or from Krabi Town and Ao Nang hotels through the day, booked online or at the airport counters. Or a private car door to door, about ฿2,100–3,300 and two hours, which is the only option after the last van and comes close to the van fare per head once five or six people share it.

Krabi, meaning Ao Nang and Railay, for the limestone cliffs, climbing and island tours; Koh Lanta for long, quiet beaches and a slower pace. With a week, do both, three nights in Ao Nang or Railay and then four on Lanta. With four nights or fewer, stay in Krabi. The Krabi vs Koh Lanta comparison has the full side-by-side.

May to October, the monsoon, when many bungalows and bars close, the sea is rough and most boat trips stop; September and October are the wettest months. The vans still run all year, but the boats from Krabi Town's Klong Jilad pier only sail from November to April. The Koh Lanta travel guide covers when to go and which beach to pick.