The Saigon-to-Phnom Penh bus is the cheapest, fastest, and most-used overland route into Cambodia for Aussies in 2026. Seven hours, twenty US dollars, one printed eVisa — here's the field-tested version.

You board a tour bus in Ho Chi Minh City's District 1 around 6:30am to 8:30am, you ride two and a half hours south-west to the Moc Bai border, you get your Vietnamese exit stamp (the bus attendant on Mekong Express or Giant Ibis runs the passports for you), you walk a short distance across no-man's-land, you hand your printed Cambodia eVisa to the Bavet immigration officer for your entry stamp, you reboard, and you arrive in central Phnom Penh roughly seven hours after departure. Total cost $15 to $25 USD (~$23 to $38 AUD) one-way. The Cambodia eVisa is $80 USD (~$122 AUD) all-in and approved in 3 business days. You do not need a Cambodia e-Arrival Card for the land crossing.
Of every Australian who crosses into Cambodia overland in 2026, the single biggest share is doing it on a tour bus out of Ho Chi Minh City. The numbers tell the story. Thailand–Cambodia land crossings have been closed since June 2025, with no reopening on the calendar. Laos is a quieter northern route used mainly by backpackers coming south from Luang Prabang. Vietnam–Cambodia, specifically the Bavet–Moc Bai crossing on Highway 1 between Saigon and Phnom Penh, is the workhorse.
The route is straightforward, the operators are well-practised, and the visa logistics are clean once you understand the order of operations. Seven hours door to door, twenty US dollars on a comfortable coach, one printed eVisa, one Vietnamese exit stamp, one Cambodian entry stamp, done. The reverse direction — Bavet–Moc Bai from Cambodia into Vietnam — is covered in detail elsewhere; this article is specifically for Aussies travelling Saigon to Phnom Penh, which is the more common direction for first-trip travellers flying into Vietnam first.
I have personally done this crossing more than thirty times since 2019. The rhythm has barely changed in five years. The visa policy around it has changed more — particularly the rise of eVisa preference over VoA — and the broad message in 2026 is the same one we have been giving Aussie clients for years: apply for the eVisa before you board, do not rely on the Bavet VoA queue. The eVisa is faster end-to-end and removes the single biggest risk on the day.
The bus journey splits cleanly into four phases: the early-morning Saigon leg, the Vietnamese exit at Moc Bai, the Cambodian entry at Bavet, and the run into Phnom Penh. Each one is roughly the length you would guess. Here is what an Aussie can expect from each.
Mekong Express and Giant Ibis both run early-morning departures from offices on or near Pham Ngu Lao Street in District 1, Saigon. Most services pull out between 6:30am and 8:30am. The deliberate early start is to land at the border before Cambodian Immigration's slower afternoon shift kicks in around 3pm. Aim for the morning, not an overnight — the few overnight services that exist do not save you time and cost you a sleep cycle.
This is the only part of the day where your visa choice really matters. If you have an eVisa printout, you join the eVisa lane: 20 to 40 minutes for a full bus. If you arrive without one and try the VoA route at Bavet, you join the on-arrival queue with 30 to 60 minutes of waiting, $35 USD (~$53 AUD) in clean small notes, and a 4cm x 6cm passport photo. The maths is straightforward: the eVisa is faster on the day and adds only $45 USD (~$69 AUD) to your trip cost end-to-end.
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Four nights Siem Reap for the temples, three for the harder history of Phnom Penh, three for the slow river days of Kampot, three for the warm water of Koh Rong, one buffer night for the day you wish you had. Here is the honest 14-day Cambodia plan for Aussies in 2026 — costs in AUD, transport in plain English, eVisa timing baked in.
The 12-month Business eVisa extension is the longest commitment-level Cambodia stay Aussies can buy in-country. ~$300–400 USD (~$457–609 AUD) through a Phnom Penh agent on top of the $90 USD (~$137 AUD) Business eVisa, 7–14 business days. Best per-month rate of any extension — but only worth it if you genuinely plan to use the back half of the year.
Three nights in Siem Reap for Angkor, three nights in Phnom Penh for the riverfront and the harder history, one buffer night for the day you wish you had. Here is the honest 7-day Cambodia plan for Aussies in 2026 — costs in AUD, transport in plain English, and the eVisa timing baked in.
The Cambodia eVisa for Australians is $80 USD (~$122 AUD) all-in. Approved in 3 business days. Delivered as a printable PDF by email. No flight booking, no hotel reservation, no bank statement. Apply at least a week before you fly out of Australia. The Australian application walkthrough covers every field in order, and the country pillar covers the broader eligibility picture for Aussie passports.
The Bavet visa-on-arrival exists in 2026, but it carries a documented 30 to 60 minute queue on most afternoon arrivals and a smaller-but-real risk of a temporary sticker stockout that can hold you in a side room for several hours. The eVisa vs Visa on Arrival comparison breaks the trade-off down in detail. The short version: for a Bavet land crossing the answer is the eVisa, every time. Free resubmission if Immigration flags a correction, Aussie-timezone support, and you walk through the Cambodian-side checkpoint in the time it takes the bus attendant to bring your passport back.
If you absolutely must use VoA at Bavet
Bring $35 USD (~$53 AUD) in clean post-2006 USD notes — undamaged, no tears, no marker pen. Bring one 4cm x 6cm passport photo with a plain white background. Allow 30 to 60 minutes in the queue. No card payments are accepted. No phone-screen photos accepted. If your notes are damaged or your photo is wrong, you are turned away and stuck.
Print two A4 colour copies of the eVisa PDF. Hand one to the officer at Bavet, keep the second in the bottom of your daypack as backup. A phone screen is not accepted at the land border. Your passport needs at least six months of validity from the crossing date and one clean blank page for the entry stamp. The 30-day single-entry stay clock starts on the day you cross, not the day the visa was issued.
Most Aussies cross Bavet for the first time and the small details catch them off guard — when to get off the bus, where to queue, what to hold in your hand. Here is the simple order of operations, written for someone doing it cold the first time.
Have your e-Arrival QR ready for the air leg
You do not need an e-Arrival for the Bavet crossing itself, but if your wider trip includes a domestic-to-international flight back through KTI Phnom Penh later (a fly-home leg, for example), you do need the card for that flight in. Save the QR to your phone's photo album, not just your inbox.
The bus ticket itself is the cheap part. The full day, all-in for an Australian doing it solo with an eVisa already in hand, comes to roughly $115 to $130 AUD before you eat dinner in Phnom Penh. Here is the breakdown in honest Aussie dollars at June 2026 exchange rates.
Tickets can be booked online through the operator's website (Mekong Express and Giant Ibis both accept Aussie cards) or in person at the Pham Ngu Lao Street offices in District 1 a day in advance. The cheaper operators — Kumho Samco at $15 to $18 USD (~$23 to $27 AUD), Sapaco at $12 to $15 USD (~$18 to $23 AUD) — save you a few Aussie dollars but are noticeably slower at the border and less helpful with the visa paperwork. For first-time crossings, Mekong Express or Giant Ibis is worth the small premium.
The currency situation is straightforward. The bus ticket is paid in Vietnamese dong or US dollars at the office. The visa is paid in US dollars to us when you apply online. Phnom Penh tuk-tuks run on US dollars — small clean notes are the rule. The visa cost guide breaks the broader AUD picture down for 2026, and the AUD conversion piece covers the exchange-rate maths in detail.
After hundreds of Aussie crossings on this exact route, the same four things come up over and over. Each one is preventable with a five-minute check before you board.
One last point on the Thailand alternative. Some older guidebooks suggest a Bangkok-Aranyaprathet-Poipet-Siem Reap overland loop as an alternative entry into Cambodia. That route has been off the table since June 2025 — every one of the seven Thailand–Cambodia land borders remains closed, with no reopening date scheduled. Bangkok is still a useful flight stopover, but it does not connect overland to Cambodia in 2026. The Thailand–Cambodia border closure update covers the closure context, and the visa-on-arrival airports guide covers the air-arrival contingency if you decide last-minute to fly into KTI instead.
Saigon is the launchpad — multi-entry if you plan to return.
See the combo guide →Bangkok in is fine. Bangkok overland to Cambodia is not.
Read the closure update →Tropaeng Kreal is the quieter overland route — from the north.
Plan the Laos route →Most Aussies stop here on the long-haul in or out.
Sort the stopover →Bali or the Mekong on your next two-leg trip?
Compare the two →The day before you board, run through this short list. None of it is fiddly, none of it costs much, and missing any single item is the source of most of the avoidable trouble at the border.
If you are tying this bus journey into a wider Indochina loop, the Vietnam–Cambodia visa combo guide covers the dual-visa sequencing, and the Indochina first-trip planning checklist covers the broader twelve-step pre-trip prep. The visa edge-cases piece is worth a five-minute read if your passport situation is anything other than a standard recent-issue Australian adult passport.
Next steps and related reading for Australians: apply for your Cambodia eVisa when you are ready to lodge, bookmark our Cambodia visa hub for Australian citizens as the single canonical reference, skim the FAQ on Cambodia visa eligibility for quick answers, and use our glossary of Cambodia visa terms to decode any acronym in this guide.