Mostly by air, because the distances are long: Hanoi to Luang Prabang takes about an hour and a quarter, Hanoi to Bangkok about two hours and Siem Reap to Bangkok about an hour, while direct flights between Siem Reap and Luang Prabang run only in the main season. The land border between Cambodia and Thailand has been closed to travellers since June 2025, so those two countries are linked by air only. Within Vietnam we use Vietnam Airlines or Bamboo Airways rather than low-cost carriers, with allowances typically of 7 to 12 kg hand luggage and 20 to 23 kg checked, confirmed with your final itinerary.
Each country has its own rules, so check every one on your route. For Vietnam, citizens of the United Kingdom, France, Germany, Italy, Spain and several other countries enter without a visa for up to 45 days, while citizens of the United States, Canada and Australia need an e-visa. For Thailand, citizens of 60 countries and territories, including the United States, the United Kingdom, Canada and Australia, enter without a visa for up to 30 days from 15 September 2026, and everyone must complete the free Thailand Digital Arrival Card within three days before each arrival. For Cambodia and Laos, most nationalities need a visa, on arrival or online, and both countries ask arriving travellers to complete an online arrival card. We help with these procedures, but rules change, so please confirm the position for your own passport before booking flights.
No, only some do: our 21-day tour from Luang Prabang and our 21-day tour from Hanoi cover all four countries, while the others on this page combine Vietnam, Cambodia and Thailand without Laos, so check the destination list under each tour. Every trip is private, so there are no fixed departures: if you want Laos and the itinerary you like does not include it, we can add Luang Prabang or Vientiane, usually three or four extra days, and you can also change the order of the countries or the standard of hotels.
Three weeks is the realistic length for all four, because Luang Prabang deserves at least three nights and the flights between countries take up time of their own. Eighteen to twenty-one days is enough for Vietnam from north to south, the Angkor temples and Bangkok with the northern hills around Chiang Mai, as on our 18-day tour. Fourteen days is the practical minimum for three countries, and below two weeks we would drop a country rather than compress them all.
Yes, most nationalities need a visa for both countries, including citizens of the United States, Canada, the United Kingdom and Australia. For Cambodia, a visa on arrival costs 30 USD for a 30-day stay, or you can apply online at evisa.gov.kh, which only works at certain airports and land crossings. For Laos, a visa is available on arrival at the main airports and land borders or online at laoevisa.gov.la, allowing 30 days and extendable up to 90. Both countries also ask arriving travellers to complete an online arrival card. Rules and fees change, so please confirm the position for your own passport before you travel.
Yes. Every trip is private, so there are no fixed departures: the itineraries on this page start in Luang Prabang, but you can begin in Siem Reap or Phnom Penh and finish in Laos, and the direction usually comes down to which international flights suit you best, since Laos has fewer connections than Cambodia. Vietnam can be added by air; allow at least five to seven extra days, otherwise it becomes a stopover rather than part of the trip.
Quoted prices are based on a group of four travellers staying in standard hotels, and they do not include international flights. Because the trips are private, the final price depends on when you travel, the category of hotels you choose and above all the size of your group: the same itinerary costs less per person for six than for two. Send us your dates and group size and we will put together a detailed quote.
November to March is the most comfortable window, and the two countries share a similar pattern, which makes them easy to combine. The dry season brings clear skies and little rain, the easiest time for the temples and for travel between regions, while April and May are the hottest months, with 30 to 35 degrees in Laos. The rains arrive from around April or May and the trip still works then: showers are usually short, the landscape is greenest, prices are lower and Angkor is much quieter.
Mostly by air, because the overland route is very long. Direct flights link Siem Reap with Luang Prabang and Pakse, and Phnom Penh with Vientiane, and several run only in the main season from around October to April, so the order of your stops is often set by the flights (how to get to Cambodia). In the far south, a land crossing near the 4000 Islands is possible and we use it when the itinerary already takes you there. Within each country most transfers are by private car with a driver. Schedules change, so we confirm flights when we finalise your itinerary.
Ten days covers the essentials: Luang Prabang with Vang Vieng and Vientiane, then the Angkor temples at Siem Reap, as on our 10-day tour. Fifteen days lets you add Battambang, Phnom Penh and a few nights on the Cambodian coast at Koh Rong, as in our 15-day itinerary. Twenty days is what you need to include southern Laos, the Bolaven Plateau and the 4000 Islands, which are a long way from Luang Prabang.
Yes. Every trip is private, so there are no fixed departures: the itineraries on this page start in Hanoi or Siem Reap, and you can begin in Ho Chi Minh City, Phnom Penh or Luang Prabang and finish in any of the others, with the direction usually set by which international flights suit you best. Thailand can be added by air or overland. Allow at least five to seven extra days, otherwise it becomes a stopover rather than part of the trip; see our Vietnam, Cambodia, Laos and Thailand tours.
The prices on this page are “from” prices for four travellers staying in standard hotels, and they do not include international flights. Because the trips are private, the final price depends on when you travel, the category of hotels you choose and above all the size of your group: the same itinerary costs less per person for six than for two. On a three-country route the internal flights make up a large part of the total, so the dates you choose affect the price more than on a single-country trip. Send us your dates and group size and we will put together a detailed quote.
Mostly by air, because the distances are long. A direct flight from Hanoi to Luang Prabang takes about an hour and a quarter, Ho Chi Minh City to Phnom Penh about an hour, and Hanoi to Siem Reap closer to two hours. Direct flights between Siem Reap and Luang Prabang run on a limited, seasonal schedule, so the order of your stops is often set by the flights. Between southern Vietnam and Phnom Penh you can also go up the Mekong by boat. Schedules change, so we confirm flights when we finalise your itinerary; see our guide to getting to Laos.
The three countries have separate rules, so check all three. For Vietnam, citizens of the United Kingdom, France, Germany, Italy, Spain and several other countries enter without a visa for up to 45 days, while citizens of the United States, Canada and Australia need an e-visa (Vietnam visa guide). For Cambodia, most nationalities need a visa, 30 USD on arrival or online at evisa.gov.kh (Cambodia visa guide). For Laos, most nationalities need a visa, on arrival at the main airports or online at laoevisa.gov.la, allowing 30 days and extendable up to 90 (Laos visa guide). Cambodia and Laos also ask arriving travellers to complete an online arrival card. We help with these procedures, but rules change, so please confirm the position for your own passport before booking flights.
November to March is the window that works across all three. Cambodia and Laos are in their dry season, and northern Laos is at its best from November to March. In Vietnam, March and April offer the most balanced weather from north to south, while October and November can bring heavy rain to central Vietnam (best time to visit Vietnam). April and May are the hottest months in Laos, at 30 to 35 degrees, but the rainy months still work, with short showers, greener landscapes and far fewer people at Angkor.
