How Do You Get from Phu Quoc to Koh Rong?
Take a fast boat from Phu Quoc to Ha Tien, cross the Ha Tien and Prek Chak border into Cambodia, travel by road to Sihanoukville or Kampot, then take a boat to Koh Rong. In one push that is about 7 to 10 hours; with a night in Kampot it spreads over two shorter days.
| Route |
How it works |
Time |
Best for |
| 1. Same day via Sihanoukville |
Boat to Ha Tien, border, minibus or car to Sihanoukville, speedboat to Koh Rong |
About 7 to 10 hours |
Travellers short on time who can start on the first boat |
| 2. Two days via Kampot |
Boat to Ha Tien, border, bus or van to Kampot, night in Kampot, morning boat to Koh Rong |
Two half days |
Most travellers, families, anyone with heavy luggage |
| 3. Fly via Phnom Penh |
Flight to Phnom Penh, road to Sihanoukville, speedboat to Koh Rong |
Usually two days |
Travellers who entered Phu Quoc visa-free and have no Vietnam visa |

For most people I would pick the Kampot stopover. On paper the one-day version works, but one slow border queue, or one minibus that swaps vehicles halfway, is enough to land you in Sihanoukville after the last boat has gone. Kampot turns that tight connection into an easy evening by the river, and the morning boat has you on Koh Rong before lunch. I would only attempt the single day with a private car and a very early start.
Can You Take a Ferry or Fly Directly from Phu Quoc to Cambodia?
No. As of October 2026 there is no passenger ferry from Phu Quoc to any Cambodian port and no direct flight to Sihanoukville, the gateway to Koh Rong. The closest thing is Air Cambodia's short flight to Phnom Penh, which still leaves you a long road transfer and a boat away from the island.
Talk of a ferry from Kampot's new international tourism port to Phu Quoc has come up more than once. In early 2025 the port said it expected to start international services within weeks, and forum threads from that time are full of travellers waiting for it. In our most recent check, in October 2026, a local Kampot travel website still listed no trips to Phu Quoc, and we can also confirm that no direct boat runs at the moment. You will also find plenty of unverified claims online that a direct boat now runs from Phu Quoc to Koh Rong. I would not plan around any of them until you can actually buy a ticket.
A lot of the advice I hear about this trip is unfounded too, like the tip to "just fly to Sihanoukville": flight-tracking sites list no non-stop service from Phu Quoc. What does exist is Air Cambodia's flight to Phnom Penh's new Techo International Airport, which suits one specific kind of traveller, covered in Route 3.
Route 1: Phu Quoc to Koh Rong in One Day via Sihanoukville
The one-day route works if you catch the first fast boat and nothing slips. Expect about 1 hour 20 minutes on the boat to Ha Tien, border formalities, 4 to 4.5 hours by road to Sihanoukville, and 30 to 75 minutes on the boat to Koh Rong.
| Leg |
Transport |
Time |
Fare (12Go, Oct 2026) |
| Phu Quoc (Bai Vong port) to Ha Tien |
Superdong or Phu Quoc Express fast boat |
About 1 h 20 |
About US$8 to US$10 |
| Ha Tien port to Prek Chak |
Taxi, then on foot through both posts |
Short ride plus formalities |
Cambodian visa on arrival US$30 |
| Border to Sihanoukville |
Minibus via Kep and Kampot, or private car |
About 4 to 4.5 hours |
About US$16 to US$25 for a van seat |
| Sihanoukville to Koh Rong |
Speedboat |
30 to 75 minutes |
US$8.50 to US$12.75 on most boats |
The boat to Ha Tien and the border
Fast boats run by Superdong and Phu Quoc Express leave from Bai Vong port on Phu Quoc's east coast, so leave time to get there from your hotel. According to 12Go's live schedule, the first fast boat sails at 07:10 and the last at 14:00. The crossing takes about 1 hour 20 minutes and costs about US$8 to US$10. A slower Thanh Thoi ferry shares the same listing and takes about 3 hours, so check which boat you are buying.
From Ha Tien port it is a short taxi ride to the Ha Tien border gate, also known as Xa Xia, where the two immigration buildings sit close together and the crossing is open from 07:00 to 18:00. Keep your passport, cash and the next boat ticket in a day bag, not in a suitcase stowed under the minibus.

The Cambodian visa on arrival costs US$30, so carry clean US dollar notes. We have noted that officers at land crossings sometimes ask for a few dollars more. The smoothest crossings described in the traveller threads I read were the ones where a driver was already waiting on the Cambodian side, rather than a fare negotiated with whoever happens to be at the gate. That is how I would arrange it too: a short message to a driver or your hotel the day before is worth more than any bargaining skill at the border.
The road to Sihanoukville
In the Sihanoukville to Ha Tien schedule we checked, operators such as Champa Tourist Bus, Kampot Transports and Ha Tien Xanh Travel run vans and minibuses in 4 to 4.5 hours for US$16 to US$25, and the road is the same in the other direction. It follows the coast through Kep and Kampot. Travel agents on Phu Quoc sell through tickets that bundle hotel pickup, the boat, the border and the minibus, which is convenient but not always smooth: some trips change vehicles at the border or in Kampot and stop often, which is how a four-hour drive turns into a much longer day. Before you pay, ask whether the minibus waits for you after immigration and where it drops you in Sihanoukville, since the bus station and the pier are not the same place.

A private car is the better answer if the budget allows. One traveller who paid for a door-to-door transfer, including someone to walk them through the border, left their Phu Quoc hotel at 06:30 and reached Sihanoukville at 13:30.
The last boat to Koh Rong
Speed Ferry Cambodia, Vireak Buntham, Island Speed Ferry, Romny Tour Express and GTVC all run between Sihanoukville and Koh Rong. Most leave from Serendipity Beach Pier and land at Koh Touch, while GTVC uses Sihanoukville Port. The last boats leave at 16:00 and 17:00, and fares mostly run between US$8.50 and US$12.75.

So can you do it all in one day? With a private car and the first boat out of Phu Quoc, yes. With shared minibuses it is a gamble, and I would not tie a hotel booking to it. If you reach Sihanoukville after about 15:00, I would sleep there and take a morning boat, which is what one group in the threads ended up doing; they still said it was not difficult. Our travel expert Preetika Narula also advises in her Koh Rong guide against taking boats after dark, and from May to October rough seas can cancel sailings, so keep a spare day before any onward flight.
Route 2: Break the Journey in Kampot
Splitting the trip at Kampot is the calmer option. Buses and vans run from Ha Tien to Kampot in 1.5 to 2.5 hours, you spend the night in Kampot, and a morning catamaran takes you straight to Koh Rong in 2 to 3 hours, without going through Sihanoukville at all.
Buses and vans from Ha Tien to Kampot run from 06:00 to 16:00 with operators such as Vibol Express, Champa Tourist Bus and Kampot Transports, at US$9 to US$15. The next morning Vireak Buntham's catamaran leaves Kampot at 07:30 and 08:30 for US$21.50 to US$24. Confirm the exact pier when you book, because there have been cases of passengers being dropped at the wrong one.

This is the version I would book for families and for anyone with big bags, because a late ferry or a slow border costs you nothing. Kampot is also worth an evening in its own right. Kep, a little closer to the border and known for its crab market, works as a stopover too, though you would still head on to Kampot or Sihanoukville for the boat.
Route 3: Fly via Phnom Penh
Flying mainly makes sense if you entered Phu Quoc visa-free and have no Vietnam visa. Air Cambodia's flight to Phnom Penh takes about 1 hour 10 minutes, but once you add the road to Sihanoukville and the boat, Koh Rong becomes a two-day trip.
On current listings the flight leaves Phu Quoc in mid-afternoon, which in practice means a night on the mainland. There is no direct bus from Techo International Airport to Sihanoukville, so you connect through Phnom Penh, and from the city the expressway to Sihanoukville takes about two hours. It costs more and takes longer than the land route, but it keeps you within the rules of the Phu Quoc visa exemption, and for a visa-free traveller that is the whole point.

Visas and Border Rules for Phu Quoc to Koh Rong
You need a Cambodian visa, which you can buy on arrival at Prek Chak for US$30. Unless your nationality is exempt, you also need a Vietnam visa or e-visa, because Ha Tien is on the mainland and Phu Quoc's 30-day exemption covers only the island. The e-visa costs US$25 for a single entry.
On the Vietnamese side, the Phu Quoc exemption lets eligible visitors stay on the island for up to 30 days if they arrive directly from abroad by air or sea; it does not extend to the mainland. The ferry to Ha Tien lands you on the mainland before you reach the border. Apply for the Vietnam e-visa on the official site, evisa.gov.vn, and check that Ha Tien appears on its list of entry and exit points before you rely on it.

On the Cambodian side, the visa on arrival is the safe choice. Sources disagree on whether Prek Chak accepts the Cambodian e-visa, so if you want one, check the port list on the official site, evisa.gov.kh, before applying. Cambodia's online e-Arrival card is required for air arrivals, so you need it on Route 3, while land arrivals still fill in a paper form at the border.
🔖 Flew into Phu Quoc without a visa?
Then the land route is the one I would avoid. The exemption is permission to stay on the island, and the boat to Ha Tien takes you onto the mainland before you exit Vietnam. The Ha Tien port does not confirm how it handles visa-free Phu Quoc visitors leaving by land, which is exactly why I would not test it with a boat ticket and a hotel waiting. Either apply for a Vietnam e-visa before you fly in, or leave Phu Quoc by air through Phnom Penh. If you are set on the land route, ask Vietnamese immigration before you buy any tickets.
Koh Rong to Phu Quoc: The Same Trip in Reverse
The reverse trip follows the same route, but two things change. You need a Vietnam visa or e-visa before you reach Ha Tien, because the Phu Quoc exemption does not apply to arrivals by land, and the last fast boats to Phu Quoc leave Ha Tien in the early afternoon.
In this direction I would sleep in Kampot or Kep, cross the border in the morning and take a midday boat to Phu Quoc, which leaves a comfortable margin before the last fast boat. A few years ago, a Koh Rong hotel quoted one group about US$70 for a taxi to Ha Tien, and another traveller thought US$40 to US$60 was fairer. Treat those as old reference points rather than today's prices.
Final Thoughts
Phu Quoc to Koh Rong is a full travel day, not a quick hop, and it goes smoothly when you sort out the visa first and leave yourself room for delays. For most travellers that means a Vietnam e-visa, the first boat to Ha Tien and a night in Kampot before the morning boat.
If you would rather not manage the border and the connections yourself, Kampá Tour plans private trips across Vietnam and Cambodia, including routes that link Phu Quoc with Cambodia's south coast. Browse our Vietnam and Cambodia tours, or ask for a free quote and we will help you fit the crossing into your itinerary.