Thailand–Cambodia Border Update 2026: All 7 Land Crossings Closed (What Australians Need to Know)

The 3 airports Australians can fly into

All three of Cambodia's international airports take Australian passport holders without fuss, all three support e-gate processing for eVisa holders, and all three accept VoA in fresh USD cash if you've gone that route (we don't recommend it). Here's how to pick.

KTI — Techo International, Phnom Penh

KTI replaced the old Phnom Penh terminal (PNH) on 9 September 2025. It is newer, larger, and runs the smoothest e-gate experience in Cambodia. Most direct and one-stop routes from Sydney, Melbourne, Brisbane, and Perth land here. If your trip starts in the capital — meetings, the Russian Market, riverside, the southern coast — this is your airport. From Bangkok, KTI is a one-hour hop with multiple daily departures.

SAI — Siem Reap International

SAI is the closest airport to Angkor Wat and the obvious choice if the temple complex is your headline reason for visiting. Around forty minutes from the new airport site to the temple gates, and Siem Reap town itself is the launchpad for most archaeological day trips. Flights from Bangkok run roughly hourly with low-cost carriers. From Australia, you'll usually transit via Singapore, Bangkok, or KTI.

KOS — Sihanoukville International

KOS is the southern coast option — beaches, Koh Rong ferries, the casino strip. Quieter than KTI or SAI, smaller terminal, fewer daily flights, but it's the right airport if your trip is beach-led. Most Aussies fly via Bangkok or KTI on the way in. The ferry to Koh Rong leaves from Sihanoukville town, twenty-five minutes from the airport. If you're combining beach time with Phnom Penh, the four-hour bus down from the capital after landing at KTI is usually cheaper than a separate KOS flight, and the road is in good shape.

One important note on KTI specifically: because it replaced PNH only in September 2025, older travel articles, some booking platforms, and a few airlines still display the old three-letter code or the old terminal photos. The IATA code KTI is current, and any flight that says it's landing in Phnom Penh in 2026 is landing at the new terminal. If your booking confirmation reads PNH, it's a display lag rather than a different airport — the city is the same, the terminal is the new one.

Land entry alternatives: Vietnam and Laos

If your trip absolutely has to be overland for the romance of it, the two routes that still work are Bavet (from Vietnam) and Tropaeng Kreal (from Laos). Both are open, both have been functioning normally throughout the Thai-side shutdown, and both will let an Australian in with a printed Cambodia eVisa.

Bavet sits opposite the Vietnamese town of Moc Bai and is the standard overland crossing for travellers coming north from Ho Chi Minh City. The bus from HCMC to Phnom Penh takes around six hours and the crossing itself is straightforward if your paperwork is sorted. The Vietnam–Cambodia visa combo guide for Australians covers the dual-visa logistics in detail.

Tropaeng Kreal is the Lao border crossing, south of Stung Treng, used by overlanders coming down from Si Phan Don (the 4,000 Islands) or Pakse. Quieter than Bavet, slower-paced, and reliable. Our Laos–Cambodia visa guide walks through the timing and document checklist.

One important warning on both: visa-on-arrival at Cambodian land borders is technically available but unreliable in practice. Booths run out of stickers more often than at the airports, the queue moves slower, and the USD-cash requirement (fresh, undamaged, post-2006 notes) is enforced strictly. Aussies coming overland should arrive with the eVisa already approved and printed — two A4 copies — not relying on the booth.

A third, less obvious option exists: fly into Vietnam (Ho Chi Minh or Hanoi), bus to Bavet, walk across to Cambodia. The total trip time from Sydney via Saigon is longer than the direct flights, but it lets you visit two countries on one ticket and the Bavet crossing has been running smoothly throughout the Thai-side shutdown. Same logic from Vientiane via Tropaeng Kreal. Both add a day to the itinerary but neither requires you to touch a Thai border post.

How to rebook if your itinerary assumed Bangkok–Siem Reap overland

Hundreds of Australian travellers had Bangkok-to-Siem Reap bus or train segments locked into 2025 and early-2026 itineraries that no longer work. Here's the practical sequence to rebook without losing money or time.

• Cancel or refund the Thailand-side onward leg first. Most Thai bus operators on the Bangkok–Aranyaprathet route processed automatic refunds in 2025; if yours did not, email the operator with the booking reference and the closure date and they should refund. 12Go Asia handled refunds at scale.
• Book Bangkok → SAI (Siem Reap) as the direct replacement if Angkor Wat was the destination. It's a one-hour flight, several departures daily, and low-cost carriers route through Don Mueang (DMK) at the cheapest fares.
• Or book Bangkok → KTI (Phnom Penh) if Phnom Penh was the destination. Also a one-hour flight, slightly more frequent than SAI, and KTI is the smoother airport for arrivals.
• If you're stretching the budget, a Bangkok–Kuala Lumpur–Phnom Penh routing through AirAsia is sometimes cheaper than the direct flight, at the cost of three to four extra hours.
• Re-time the Cambodia eVisa application around the new flight date — the eVisa is valid for 3 months from issue, so a small flight-date shift is rarely a problem. The 30-day stay window starts at the immigration desk, not at issue.

Don't book the flight before the eVisa is approved if your trip is tight on time. The Cambodia visa processing time from Australia is three business days, weekends and Cambodian public holidays don't count, and a Friday-afternoon submission can land approval the following Wednesday. Once the approval PDF is in your inbox, book the flight that matches the date you're realistically arriving.

What to watch for next

We're not going to pretend we know when the borders reopen. Nobody outside the relevant Thai and Cambodian ministries does, and the April 2026 statement from the Thai Navy was, by design, open-ended. The honest position is: no reopening date is on the calendar, any reopening will be announced from the Thai side first, and an announcement could land tomorrow or could be twelve months away.

Three things would be early signals of a reopening: a public Thai Royal Gazette notice, a coordinated press release from the Cambodian Ministry of Foreign Affairs, and the resumption of cross-border bus schedules from Bangkok-side operators like Nattakan and Giant Ibis. None of these signals are currently in motion as of late May 2026.

We monitor border movement bulletins weekly and update this article when something concrete is published. The Smartraveller advisory for Cambodia and the Smartraveller advisory for Thailand are the two official Australian sources worth checking before any trip. The eVisa vs VoA comparison covers the entry-route trade-off in more depth, and the Cambodia-vs-Thailand routing piece helps if you're now deciding which country to visit first.

If you're flexible on dates, the best-time-to-visit Cambodia guide covers weather and crowd windows for 2026 — handy if you're rebuilding a Thailand-plus-Cambodia trip around flights rather than a land crossing.

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 at the border for quick answers, and use our glossary of Cambodia visa terms to decode any acronym in this guide; for a structured side-by-side visa vs thailand visa comparison, see the dedicated comparison page.