Thailand-Cambodia Border Is Still Shut: What Riders Must Know

No rumours, no forum hearsay. Here is exactly what is shut between Thailand and Cambodia in 2026, what it does to a multi-country ride, and how to still get your Cambodia trip done properly.

The short version, before you scroll

If you have been planning to ride from Thailand into Cambodia, or out of Cambodia back into Thailand, stop and read this before you book anything. Every official land crossing between the two countries has been closed since late June 2025. Not “slow”. Not “difficult”. Closed. Barriers down, immigration booths shuttered, nobody going through on four wheels or two. That was still the situation in the third week of August 2026, more than a year after the first checkpoints came down, and there is no announced reopening date.

That single fact rearranges a lot of trip plans. It does not, however, kill your Cambodia riding. It just means Cambodia has to be ridden as Cambodia, entered and exited by air, rather than tacked onto the end of a Thailand loop the way half the internet still describes it. The rest of this piece explains what actually happened, why a rider is affected differently from a backpacker, and what a sensible plan looks like now.

What actually happened out there

The border between Thailand and Cambodia has been argued over for a very long time, mostly around a handful of temples sitting on a disputed watershed line. Preah Vihear is the famous one, an eleventh-century Khmer temple perched on a cliff that both countries have claimed at various points, and which the International Court of Justice awarded to Cambodia. That dispute simmered for decades without stopping anybody from riding through.

In the middle of 2025 it stopped simmering. Armed clashes broke out along the frontier, artillery was used, people died on both sides, and both governments shut their checkpoints. A ceasefire was signed in August 2025, then broke down. Another one was agreed at the end of December after further deadly clashes. In January 2026 the Thai army was publicly discussing a fresh strike that Cambodia described as an accident, which tells you roughly how solid the truce felt at the time. Talks between defence officials have continued into the northern summer of 2026, and there have been genuinely constructive moments, but the checkpoints have stayed shut throughout.

The practical wording that matters comes from the embassies. Western governments continue to tell their citizens to avoid all travel within fifty kilometres of the Thailand-Cambodia border, and the reason they give is not just the risk of another exchange of fire. It is landmines. Both sides have laid explosives in that strip at various points over forty years, some of it very recently, and there have been casualties among soldiers on patrol. A fifty-kilometre exclusion band is not a suggestion you improvise around because your GPS shows a nice little back road.

Which crossings, exactly

All of them. That is the honest answer, and it is worth spelling out because riders tend to assume that if the famous one is shut, there must be a quiet one somewhere that still works. There is not.

Poipet-Aranyaprathet, the big one on the Bangkok-Siem Reap axis that most overland travellers have used at some point, is closed. Ban Pakard, the crossing near Pailin that riders coming out of Siem Reap toward Chanthaburi and the Gulf coast have always preferred because it is quieter and the road on the Thai side is good, is closed. Hat Lek down near Koh Kong is closed. The smaller northern posts at Chong Chom and Chong Sa-Ngam are closed. Every one of them, in both directions.

You will still find blogs, tour itineraries and even a few operator pages describing a Siem Reap to Chanthaburi riding day as though nothing has changed. Some of those pages have not been touched since 2019. Treat any content that does not name a date as worthless on this particular subject, including, frankly, anything on this website that we have not got round to updating yet. On a border question, a page without a date is a page you cannot use.

Why this bites a rider harder than a backpacker

Somebody with a rucksack has a simple fix. They book a sixty-dollar flight from Bangkok to Siem Reap or Phnom Penh, both of which are operating perfectly normally, and their problem is solved before lunch. A rider does not have that option, and the reason is the machine underneath them.

A motorcycle crossing an international border in Southeast Asia is a temporary import. There is paperwork, there is a document tied to the frame number, there is usually a deposit or a customs guarantee, and there is a hard expectation that the same bike leaves the same country through a recognised post within a set number of days. When a country closes its land posts, a foreign-plated bike inside that country is stuck there until they reopen or until somebody pays a lot of money to put it on a plane or a boat. This is not theoretical. Riders have had bikes marooned by border closures before, in Nepal in 2015 and across the region during the pandemic, and the recovery bills were ugly.

Now multiply that by a group. A guided motorcycle tour crossing from Thailand into Cambodia is not one bike and one passport. It is ten or twelve bikes, a support vehicle carrying spares and luggage, a mechanic, a road captain, a local guide and a stack of temporary import documents that have to clear together in the same afternoon. That convoy has exactly one legal way through a land border, and right now it does not exist. There is no clever route around it, no friendly official, no back road through the forest. The forest is the part with the mines.

The Vietnam side is a completely different story

Here is the nuance most people miss, and it matters enormously if you are looking at a longer multi-country motorcycle tour. Cambodia’s border with Vietnam is open and functioning. The crossing at Ha Tien in the Mekong Delta, which puts you into the Cambodian coast near Kep, works. So do the crossings around Bavet on the Saigon to Phnom Penh axis.

That is why a thirty-day ride through Thailand, Laos, Vietnam and Cambodia is not automatically dead. It changes the shape of the trip rather than cancelling it. The Thailand to Laos crossing at Chiang Khong and Huay Xai is fine. Laos into Vietnam at Dien Bien Phu is fine. Vietnam into Cambodia at Ha Tien is fine. The single broken link in the chain is the last one, Cambodia back into Thailand, which is precisely where the old itineraries put a riding day from Siem Reap through Pailin to Chanthaburi.

If you are looking at any long multi-country motorbike tour that ends by re-entering Thailand from Cambodia, that is the question to ask the operator before you pay a deposit. Not “is it safe”, which invites a marketing answer, but “how does the group physically get from Cambodia back into Thailand on this departure, and what does that cost”. A straight answer sounds like a flight number and a freight arrangement. A vague answer sounds like a page written in 2019.

What about riding to Preah Vihear itself

People ask this a lot, because the temple is one of the great sights of mainland Southeast Asia and because approaching it on a bike, up that cliff road, is a proper piece of riding. The answer is yes, from the Cambodian side, and no, from the Thai side.

Preah Vihear sits directly on the disputed line. The Thai approach at Pha Mo I Daeng has been closed and militarised. The Cambodian approach, from Sa Aem up the escarpment, has continued to receive visitors during quieter stretches, though access has been suspended more than once when tensions spiked and there is no guarantee it will be open on the day you turn up. Any operator who tells you a Preah Vihear visit is guaranteed on a fixed date is overselling. Any operator who has a plan B for that day has been paying attention.

The wider Cambodian north, meanwhile, is one of the most rewarding pieces of riding in the region and it does not require you to go anywhere near the flashpoints. The stretch from Ratanakiri across to Siem Pang and Tbeng Meanchey is rough, red, empty and completely absorbing, and the temple complex at Koh Ker, which is a genuine forest ruin rather than a groomed tourist site, sits right in the middle of it.

The “just fly the bikes” question

Every few weeks somebody in a forum suggests that operators should simply air-freight the group’s motorcycles between Bangkok and Phnom Penh. It is not insane, and it is occasionally done for individual bikes on long-distance expeditions. It is also expensive enough to reshape the price of a trip.

Air freight for a single large adventure bike on a short regional hop, once you have added crating, dangerous-goods handling for the fuel system, customs clearance at both ends and the agent’s fee, does not leave much change from two thousand US dollars each way, and that is before anybody’s flight. Sea freight is cheaper per unit but takes weeks and needs a port at both ends, which Cambodia has at Sihanoukville but which adds several hundred kilometres of repositioning. For a group of twelve, either option turns a well-priced motorcycle tour into something priced like a superyacht charter.

Which is why the sane commercial answer, and the one most serious operators in the region have landed on, is different: run Cambodia with Cambodian-registered bikes, based in Cambodia, and let the riders fly in. Nobody’s frame number ever has to cross a closed border.

What a Cambodia-only ride actually gets you

Here is the part that surprises people who had mentally filed Cambodia as “the Angkor Wat add-on at the end of the Thailand trip”. Ridden on its own terms, over a couple of weeks, Cambodia is not a side dish. It is one of the last countries in Southeast Asia where you can put in a full day on a motorcycle and see almost nobody.

Start in Phnom Penh and run northeast up the Mekong to Kratie, where the Irrawaddy dolphins still surface in the deep pools at Kampi and where the riverside road has a shabby colonial elegance that Vietnam has mostly polished away. Climb into Mondulkiri, which is red dirt, pine hills and elephant country, and which for years was the province where riders came back with the best stories and the worst suspension. Cross to Ratanakiri, up in the northeast corner, where the crater lake at Yeak Laom is a near-perfect circle of cold water in a jungle bowl and where the road surfaces will remind you what a decent set of tyres is for.

Then west across the top of the country, through Siem Pang and Tbeng Meanchey, on roads that have been transformed over the last few years and where you will still spend long stretches with nothing in the mirrors. Koh Ker. Siem Reap and Angkor, which deserves its reputation and which you should give a rest day rather than an afternoon. Battambang, the most likeable provincial town in the country. Then south into the Cardamoms, the last big block of intact forest in mainland Southeast Asia, down to Koh Kong on the coast, and back east along the Gulf through Chi Phat, the old French hill station at Bokor, the pepper farms around Kampot and the crab shacks at Kep before the run home to Phnom Penh.

That is roughly two and a half thousand kilometres and it never once needs a Thai immigration stamp.

What to do if you have already booked something

Three practical moves, in order.

First, get the itinerary out and find every day where the group changes country. Write down the actual crossing name, not the country pair. “Cambodia to Thailand” tells you nothing. “Siem Reap to Chanthaburi via Pailin” tells you everything, because Pailin is shut.

Second, ask the operator in writing what happens on that day. Not on the phone. In writing, so that you have an answer you can point at later. If the reply is that the itinerary has been rerouted, ask which crossing replaces it, because if the answer is another Thai-Cambodian post then nothing has actually changed.

Third, check your travel insurance for the border clause. Most policies void cover for any region your own government tells you not to visit, and “avoid all travel within fifty kilometres of the border” is exactly that kind of instruction. If your itinerary parks you inside that band for a night, you may be uninsured for the whole day without realising it. This sits alongside the more familiar trap where a standard travel policy quietly excludes riding anything over 125cc, which is a subject that deserves its own article and which catches out more riders every year than every mechanical failure combined.

When does it reopen

Nobody knows, and anybody who gives you a date is guessing. What can be said is that both economies lose real money from the closure. Cambodia’s border casinos and markets have been gutted, Thai border provinces have lost their cross-border trade, and hundreds of thousands of Cambodian migrant workers who used to move back and forth for work in Thailand have been stuck on one side or the other. There is genuine pressure to reopen, which is why talks keep happening.

Against that, the underlying territorial argument has not been settled, both governments have domestic audiences that reward toughness, and the mines are still in the ground regardless of what any negotiator signs. Our working assumption at Big Bike Tours is that the land border stays shut through the 2026 to 2027 riding season, and we would rather be pleasantly surprised than have a group of riders stranded at a barrier with twelve bikes and no plan.

The wider lesson, which is not really about Cambodia

Southeast Asia is not a theme park with fixed opening hours. Borders here move. Myanmar’s land crossings have been shut to tourists for years. Laos changed which of its posts issue a visa on arrival with almost no notice. Thailand quietly reinstated a cap on how many times a year you can enter by land, which trips up multi-country riders who cross back and forth without thinking about it. China’s overland entry has always required a permit and a guide and it has never once been simple.

This is precisely the value a good guided tour adds, and it is the least glamorous part of the pitch. Nobody books a big biking tour because they are excited about temporary import documents. But the difference between a trip that runs and a trip that collapses is usually somebody in an office who reads the government notices every week, keeps a relationship with the customs broker on both sides, and rebuilds the route in February when a checkpoint closes in January. When it works you never notice it. When it does not, you are the guy at a barrier watching a soldier shake his head.

Since you are rebuilding the plan anyway, pick the right months

One upside of having your itinerary forced back to the drawing board is that you get to choose your season properly instead of inheriting whatever dates the Thailand leg dictated. Cambodia has three of them and they are not subtle.

November through February is the postcard window. Dry, the dust has settled after the rains, mornings cool enough that you want a liner in the jacket at seven in the morning in Mondulkiri, and the rice paddies still green from the wet season. It is also when everyone else comes, which matters mostly at Angkor and almost nowhere else. If you have flexibility and no strong opinions, ride then.

March through May is the furnace. Forty degrees in the shade in the lowlands, the Mekong down to its bones, red dust hanging over every laterite road and the whole country waiting for the first storm. Riders who have done a lot of hot-weather touring can handle it and there is a strange beauty to the country at its driest, but it punishes anyone who has not thought about hydration, and it is the season where a mesh jacket stops being optional and starts being survival kit.

June through October is the green season, and it is the one that divides riders down the middle. The rain usually arrives as a hard hour in the afternoon rather than an all-day drizzle, the temperature drops to something civilised, the landscape goes electric green and the crowds vanish. It also turns the red laterite in Mondulkiri and Ratanakiri into something with the friction coefficient of wet soap, and a few river crossings go from ankle-deep to interesting. If you like riding in the wet and you are on decent tyres, it is the most atmospheric time of year in Cambodia. If you have never ridden a loaded adventure bike on wet clay, do not make this the trip where you find out.

What you actually ride, and what the roads do to it

Cambodia has changed faster underneath its riders than almost anywhere in the region. Roads that were legendary ordeals ten years ago are now smooth two-lane tarmac, the Mondulkiri to Ratanakiri run being the obvious example. Other stretches have gone the other way, because a road that was sealed in 2018 and has taken six wet seasons and a lot of overloaded timber trucks since then can be worse than honest dirt.

The practical consequence is that a Cambodian tour bike gets specified differently from a Thai one. On the northern Thailand loops you can put people on big road-biased adventure machines and the worst they will meet is a gravel car park. In Cambodia the same bike will be fine for eighty percent of the trip and a liability for the other twenty, which is usually the twenty everyone came for. Lighter mid-capacity adventure bikes with proper dual-purpose rubber earn their keep here, and a rider who is honest with themselves about how much weight they want to pick up out of a rut will have a much better fortnight than one who insisted on the biggest thing in the fleet.

Fuel is straightforward on the main axes and gets thin in the northeast, which is one of the practical reasons a support vehicle matters more here than on a Thai loop. Tyres and consumables you can get in Phnom Penh and Siem Reap and essentially nowhere else at the size you need. Nobody in a village in Preah Vihear province stocks a 150/70-17. They will, however, weld your pannier frame back together in forty minutes for the price of a beer, and do it better than the shop at home.

Riding Cambodia for real

The Real Cambodia Ride is fifteen days and roughly two and a half thousand kilometres, and it was built as a Cambodia trip from the beginning rather than as an extension of something else. It starts and finishes in Phnom Penh, which means you fly into an international airport that is open, ride the country properly, and fly home. No closed border touches it at any point.

You get Kratie and the Mekong, the red hills of Mondulkiri and Ratanakiri, the empty north through Preah Vihear province and Koh Ker, a full rest day at Angkor, Battambang, the Cardamom mountains, Koh Kong, Bokor and the Kampot pepper coast. Small group, road captain, mechanic, support vehicle, hotels sorted, everything included and no surprises on the bill. Have a look at the 15-day Real Cambodia Ride, or the wider Cambodia motorbike tours page if you want to compare options. If you already have dates in mind and want to know exactly which roads are open on those dates, message us on WhatsApp and we will tell you straight, including when the answer is no.