The Cambodia e-Arrival Card was built for air arrivals. At a land border the arrival declaration is handled at the crossing itself, so the rules play out differently. Here is exactly what an American files crossing overland from Vietnam versus flying in — and why this only ever comes up on the Vietnam side.
The Cambodia e-Arrival Card was built for air arrivals, and that is where it is unambiguously required: every American flying into Cambodia files it within the 7 days before landing. At a land border the arrival declaration is handled at the crossing desk itself, so the digital card does not behave the way it does at an airport — you complete the arrival paperwork on the spot when you walk across. What does carry across both routes is your eVisa: you need an approved Cambodia eVisa whether you fly in or cross overland from Vietnam at Bavet. For US travelers this question only ever arises on the Vietnam side, because all seven Thailand-Cambodia land borders have been closed since June 2025. If you are flying in, the e-Arrival Card is mandatory and you file it before you go.
If you are flying into Cambodia, the e-Arrival Card is mandatory and you file it digitally within the 7 days before you land — no ambiguity. The question only gets interesting if you are crossing overland, and for US travelers that means one realistic scenario: walking across from Vietnam at the Bavet–Moc Bai crossing. At a land border the arrival declaration is handled at the crossing itself, so you should not assume the air process copies straight over.
The reason this comes up in 2026 at all is that the e-Arrival system rolled out as a digital pre-arrival form aimed at airports, where everyone passes through a clean kiosk-and-counter setup. Land crossings are a different physical reality — a road, a desk, an officer, and a stack of paper forms that has worked the same way for years. The digital card was designed for the airport flow first, and overland entries still lean on the arrival paperwork completed at the border post.
This guide answers the land-border question plainly, then walks through what actually happens at Bavet, what carries across both routes, and why almost every American ends up flying anyway. One thing to settle up front: your visa is separate from any arrival form. You still need an approved Cambodia visa for US citizens regardless of whether you arrive by air or by road — the e-Arrival question is only ever about the arrival declaration, never about the visa itself.
The cleanest way to hold this in your head is to separate the two jobs an arrival involves. There is the visa — your permission to enter the country — and there is the arrival declaration — who you are, the trip you are on, where you are staying, and what you are bringing in. The visa is identical no matter how you arrive. The arrival declaration is where air and land diverge.
Fly in, and the arrival declaration is the digital e-Arrival Card: 14 fields across three sections, filed online within the 7 days before you land, presented as a confirmation at the immigration counter. Cross at a land border, and that same declaration is collected at the crossing — you fill out the arrival paperwork at the desk as you pass through, the way overland travelers have done for years. The information requested overlaps heavily; the channel is what changes.
So the headline answer is: flying in, you file the e-Arrival Card yourself before you go; crossing overland, you handle the arrival declaration at the border desk when you get there. The visa stays constant across both. If you want the air-versus-land contrast spelled out field by field, our breakdown of the Cambodia e-Arrival Card at land borders vs air for Americans sits right alongside this one.
The visa is the part that never changes
Whether you fly into Phnom Penh or walk across at Bavet, you need an approved Cambodia eVisa first. The arrival declaration — digital card or paper form — is a separate step that happens on top of the visa, not instead of it.
Bavet is the crossing almost every overland American uses, paired with Moc Bai on the Vietnamese side, on the main road between Ho Chi Minh City and Phnom Penh. The drill is the usual two-country dance: you clear Vietnamese exit formalities, walk or ride the short stretch across no-mans-land, then present yourself at the Cambodian arrival post. That Cambodian post is where your arrival declaration is collected.
Have an approved Cambodia eVisa, printed, before you leave Vietnam — it is the one document the border will not generate for you.
Complete Vietnamese exit formalities at Moc Bai, then walk or ride the short stretch across to the Cambodian side.
Present yourself at the Cambodian post at Bavet, where your arrival declaration is collected in person.
Fill out the paper arrival form the officer gives you at the desk — there is no airport-style kiosk to scan a digital card.
Give the officer your passport and approved eVisa with the completed arrival slip to be stamped in.
Legitimate entry is your eVisa plus the arrival declaration — decline any extra cash "stamping" or "processing" fee.
In practice that means a paper arrival form handed to you at the desk, or filled out at the counter, rather than a QR code you generated at home. You hand over your passport and your approved eVisa, complete the arrival slip the officer gives you, and you are stamped in. There is no airport-style kiosk row at a road border, so do not arrive expecting to scan a digital card you prepared in advance — the overland process runs on the paperwork at the post.
The single most important thing to have squared away before you reach Bavet is your eVisa, because that is the document the border will not improvise for you. Have it approved and printed before you leave Vietnam. Our full walkthrough of the
For the overwhelming majority of US travelers, the land-border question is academic, because they arrive by air. The instinct to drive in usually comes from the old backpacker loop that hopped between Bangkok and Cambodia overland — and that route is gone. All seven Thailand-Cambodia land borders have been closed since June 2025, with the Thai side confirming through early 2026 that they remain shut. If your plan was Bangkok-to-Siem Reap by road, that plan no longer exists; you fly.
That leaves the Vietnam side as the only live overland option, and even then most people pick the plane. A flight from Ho Chi Minh City to Phnom Penh is under an hour against roughly seven hours of bus and a border-post wait, and flying means the arrival declaration is the clean digital e-Arrival Card you file from home. If you are weighing the road against the runway, our guide on Thailand to Cambodia now that the borders are closed lays out why air is the default in 2026.
There is also a practical reason flying makes the whole arrival smoother: you control the timing. The e-Arrival Card is filed in the calm of the 7-day window before you go, checked before you ever reach the counter, and presented as a tidy confirmation. At a land border you are completing the declaration in person, in line, with whatever the desk hands you. Neither is hard, but the air route lets you do the work in advance instead of at the crossing.
If you do still want the overland adventure, it is entirely doable on the Vietnam side as long as your eVisa is sorted — that is the non-negotiable. Our list of Cambodia land borders that accept the eVisa for US citizens shows which crossings honor the eVisa and which do not, so you arrive at the right post with the right document.
Whichever way you enter Cambodia, two things settle the whole arrival: your visa, and your plan for the arrival declaration. Get those straight and there is no scenario at the airport or the border that catches you out. Here is the short checklist that covers both routes.
The thread through all of it is the same: the e-Arrival Card is the air-arrival declaration, the land border handles its own paperwork at the desk, and your eVisa is the constant that both routes demand. If you are not certain the e-Arrival Card even applies to your trip, our plain answer on whether US citizens need the Cambodia e-Arrival Card settles who has to file and when.
Next steps and related reading for Americans: apply for your Cambodia eVisa so you arrive at any port with the one document that carries across air and land, file your verified e-Arrival Card if you are flying in, compare the e-Arrival Card at land borders versus air, and read the Bavet border crossing walkthrough before you cross from Vietnam.
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Als uw Cambodia-reis langer dan 30 dagen duurt, bepaalt het visum dat u binnenkomt alles. Het Toeristen eVisum (Type T) is hard begrensd op 30 dagen en kan niet worden verlengd. Het Zakelijke eVisum (Type E) is de enige categorie die u in het land kunt verlengen — 1, 3, 6 of 12 maanden. Hier leest u hoe Amerikanen de juiste keuze maken voordat ze vertrekken.
Drie dingen gaan over de balie bij Cambodja-immigratie: je Amerikaanse paspoort, je eVisa en je e-Arrival QR-code. Hier is precies wat de ambtenaar wil zien, in welke volgorde, en de kleine mismatches die een stempel van 30 seconden veranderen in een omweg naar een side-desk bij KTI.
Nu elke Thailand-Cambodja landgrens nog gesloten is, is Bavet nu de belangrijkste overland route naar Cambodja vanuit Vietnam. Zes uur van Ho Chi Minh City, één afgedrukt eVisa, geen e-Arrival Card — zo doen Amerikaanse burgers het daadwerkelijk in 2026.
A word on the scam fees, because Bavet has a reputation for them: legitimate Cambodian entry is your eVisa plus the arrival declaration, full stop. If someone at the desk asks for an extra cash "stamping fee," a "processing fee," or a "quarantine fee," that is a shakedown, not a real charge. Stay polite, ask for a receipt, and the request usually evaporates. Knowing the real process is exactly what protects you here — there is no surprise digital-card fee waiting at a land border.
The visa carries across air and land; the e-Arrival is the air declaration.
See the full visa →The only live overland route into Cambodia — Bavet from Moc Bai.
Cross at Bavet →Pair it with Cambodia — but fly the leg, all seven land borders are closed.
Why you must fly →Down from the 4,000 Islands and into Cambodia by land.
Check the crossings →No embassy visit — the eVisa plus e-Arrival is the route for Americans.
Do Americans need a visa? →
