Sihanoukville International Airport (KOS): The Quiet Coast & Islands Gateway for Aussies
KOS (Sihanoukville International) is the small, quiet regional airport that gets Aussies onto the Cambodian coast and across to Koh Rong and Koh Rong Sanloem fastest. Single terminal, short queues, and a tuk-tuk-plus-ferry routing that skips the seven-hour bus from Phnom Penh entirely.
What do Australians need to know about Sihanoukville International Airport (KOS) in 2026?
KOS is Cambodia's small southern-coast airport and the closest gateway to Sihanoukville town, Koh Rong, and Koh Rong Sanloem. Single terminal, limited international routes, VoA available with a typical 10–15 minute queue. For Aussies skipping the seven-hour bus from Phnom Penh, KOS is the practical answer. Tuk-tuk from the terminal to the Sihanoukville ferry pier runs $5–8 USD (~$8–12 AUD); a round-trip island ferry to Koh Rong is $20–25 USD (~$30–38 AUD). Pre-apply for your Cambodia eVisa and submit the e-Arrival Card inside the 7-day window before you fly.
نکات کلیدی
- KOS (Sihanoukville International) is a small regional airport with a single terminal and limited international routes. Most arrivals are domestic from Phnom Penh, with a handful of regional flights from Bangkok and other ASEAN hubs.
- If you're an Aussie heading to the Sihanoukville coast or the islands (Koh Rong, Koh Rong Sanloem), KOS is by far the closest airport — flying in saves the seven-hour bus from KTI.
- VoA is available at KOS but quiet — typical queue is 10–15 minutes. The eVisa lane is still faster on principle, and most Aussies pre-apply anyway.
- Onward transfer: tuk-tuk to the Sihanoukville ferry pier runs $5–8 USD (~$8–12 AUD) and takes 15–25 minutes. Round-trip ferry to Koh Rong or Koh Rong Sanloem is $20–25 USD (~$30–38 AUD).
- Bring $200–500 USD cash from Australia for the first few days — the islands have very limited ATM access and most beach bungalows accept USD directly without charging conversion fees.
Why KOS matters for Aussie itineraries in 2026
KOS at a glance: small, single terminal, coastal
Getting from KOS to Sihanoukville town and the ferry pier
Lounges, food, and first-hour shopping
The arrival walk: Immigration, VoA, and the ferry-pier handoff
- Step 1 — Foreigners queue. Australian passports go through the same Immigration line as every other visa-required nationality. eVisa holders use the eVisa lane (signposted with a small white-on-blue sign); VoA arrivals are routed to a separate booth first, then the same Immigration line.
- Step 2 — Hand the Immigration officer your passport with two printed copies of the eVisa PDF tucked inside. The officer keeps one and returns the other — keep that returned copy in your passport for exit. Cambodian Immigration at KOS does not accept the eVisa on a phone screen even though Thailand and Vietnam now do. Paper, twice, A4.
- Step 3 — Show your e-Arrival QR code on your phone. Screenshot it before boarding — KOS wifi at Immigration is patchy enough that you do not want to be the person tapping refresh in the queue.
Pre-print everything
KOS is small enough that a single misstep — phone-only eVisa, no e-Arrival QR, no small USD bills for the tuk-tuk — sticks out. Print two paper copies of your eVisa PDF, screenshot the e-Arrival QR, and pull $50–100 USD in small bills from your Australian bank before you fly. The terminal ATM works but charges a flat fee around $4–5 USD per withdrawal.
Practical first-hour-on-the-coast checklist
سوالات متداول
Which Cambodian airport do I fly into for Koh Rong or Koh Rong Sanloem?
Sihanoukville International (KOS). It is the closest airport to the Sihanoukville ferry pier where the boats depart for Koh Rong and Koh Rong Sanloem. KOS is about 18 km north of Sihanoukville town and 15–25 minutes by tuk-tuk from the ferry pier. Flying into KOS is by far the fastest routing — the alternative is landing at KTI Phnom Penh and taking a seven-hour bus down to the coast, which most Aussies regret on a tight schedule.
Can I get a visa on arrival at KOS Sihanoukville?
Yes — VoA is available at KOS and the queue is typically 10–15 minutes, much shorter than at KTI. You will need a passport-style photo, two USD bills in small denominations totalling the VoA fee, and a printed onward ticket. That said, the eVisa lane is still smoother on principle because the paperwork is already approved. Most Aussies pre-apply for the Cambodia eVisa and use the eVisa lane regardless of which airport they land at.
How much does the tuk-tuk from KOS to the ferry pier cost?
$5–8 USD (~$8–12 AUD) is the fair tuk-tuk fare from KOS arrivals to the Sihanoukville ferry pier. The drive takes 15–25 minutes depending on whether the driver loops through Sihanoukville town. Pay in USD where you can — drivers prefer it. A fixed-rate airport taxi is the air-conditioned alternative at $12–15 USD (~$18–23 AUD), which is worth it during the hot months between November and April.
How much is the ferry to Koh Rong from Sihanoukville?
Round-trip ferry tickets to Koh Rong or Koh Rong Sanloem run $20–25 USD (~$30–38 AUD) at the pier kiosk. Speed-Ferry Cambodia and Buva Sea Cambodia are the two main operators; both run a daily schedule with first ferry around 8 am and last around 5 pm. Tickets are usually open-return, so you can decide on the day which boat back you want. Pay in USD at the kiosk; AUD is not accepted.
Are there ATMs at KOS airport?
Yes — Wing, ABA, and Acleda Bank machines are present in arrivals and dispense both USD and Cambodian Riel (KHR). USD machines are the better choice for the tuk-tuk, ferry, and first day on the islands. The currency-exchange counter charges a worse rate than the ATMs. Pull $50–100 USD in small bills before you leave the airport — small denominations are easier to break for tuk-tuks and food kiosks on the coast.
Is KOS open 24 hours? What if my flight lands late?
KOS is open through scheduled flight operations but is not a 24-hour airport in the way KTI is. Most international and domestic flights land between 8 am and 9 pm. If your flight lands after 8 pm, the tuk-tuk rank thins out quickly and the fixed-rate taxi desk is the more reliable option. Book a hotel transfer ahead of time if your scheduled arrival is in the late evening — driver availability is genuinely thinner here than at KTI or SAI.
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