Cambodia's new Techo International (KTI) opened 9 September 2025 with a noticeably better arrivals hall than the old PNH. Here is exactly what an Aussie should pick up on the way out — the right SIM, the right amount of riel, and the cleanest ATM choice — so the first hour in Phnom Penh costs nothing extra.

Three things at KTI arrivals hall once you clear Immigration: a local SIM, a small amount of Cambodian Riel, and enough USD cash to get through the first day. Smart Axiata and Cellcard counters sit immediately past customs — $5–10 USD (~$8–15 AUD) buys a 5GB–20GB tourist SIM with 7–30 days validity. Bring $200–500 USD cash from Australia in mixed denominations; exchange a small amount at the KTI counter for KHR at 4,000–4,100 per USD. Use the Wing, ABA, or Acleda Bank ATMs (both USD and KHR dispensed; ~$4–5 USD fee per withdrawal) only if you run short. AUD is not spendable on the ground — convert before you fly.
The first hour after Immigration is the most expensive hour in Cambodia for an unprepared Aussie. Get the SIM card wrong, exchange too much money at the airport rate, hand over a USD $100 note to a tuk-tuk driver who has no change — these are the small frictions that ruin the start of an otherwise good trip. KTI's new arrivals hall is built for this exact moment: telco counters, banks, and ATMs all sit in a clean row immediately past customs, so the entire on-arrival setup can be done in under fifteen minutes if you know what you're doing.
KTI itself opened on 9 September 2025 and replaced the older Phnom Penh International (PNH) inside the city. The new terminal is about 30 km south of central Phnom Penh in Kandal Province, on the expressway corridor. Old guidebooks that say 'PNH is 30 minutes from the city' are out of date — the new transfer is 45–75 minutes by taxi or tuk-tuk depending on traffic. That makes the arrivals-hall sort even more important, because you don't want to discover you have no connectivity or no riel when you're already on the road.
Sort your Cambodia eVisa before you fly, lock in the e-Arrival Card inside the 7-day window before takeoff, and use this article as your KTI arrivals-hall checklist. The Australia country pillar covers the broader eligibility picture, and the KTI airport guide covers the full arrival flow — Immigration queue, baggage, transfers — in detail.
Two telco brands matter at KTI for Aussies: Smart Axiata and Cellcard. Both have permanent counters immediately past customs, both staff English-speaking sales reps, and both sell pre-paid tourist SIMs in the same broad price band. Metfone is the third option but has a smaller counter and is less consistently staffed for international arrivals — skip it unless the other two queues are long.
Bring your Australian handset unlocked. Telstra, Optus and Vodafone Australia all lock new contract phones for the first 12–24 months by default, so check yours is unlocked before you fly — the KTI counter will not unlock it for you. iPhones bought outright from the Apple Store come unlocked. You'll also need to show a passport at the counter for SIM registration; the staff scans the bio page and the SIM activates on the spot.
For an Aussie on a 10–14 day trip, the Smart Axiata 14-day tourist SIM at $7 USD (~$11 AUD) is the sweet spot. The coverage is the strongest of the three telcos along the Phnom Penh–Siem Reap–Sihanoukville triangle, and 10 GB of data is plenty for navigation, messaging, and a fair bit of streaming. Cellcard's 30-day traveller SIM at $10 USD (~$15 AUD) is the better choice if you're staying longer than two weeks, doing remote work, or heading off the main triangle into the countryside where the coverage gap between the two telcos narrows.
An eSIM bought through Airalo or Holafly before you fly is the cleanest path of all if your handset supports eSIM. You activate it on the KTI terminal wifi before you leave the arrivals hall and never queue at a counter. The catch: eSIM data plans tend to be slightly pricier per GB than the physical SIM you can buy on the ground, and they don't give you a local phone number. If you need to receive an SMS from a Cambodian business — say a hotel confirmation or a tuk-tuk dispatch — the physical SIM is still the better tool.
Activate before you leave the terminal
Whichever SIM you buy, switch it on and test mobile data before you walk out of arrivals. The Smart and Cellcard staff will help, but the network can take 2–5 minutes to register on a new SIM, and you do not want to discover a dud at the kerb with a taxi meter running.
Cambodia runs on a USD-dominant cash economy with the Cambodian Riel (KHR) used for change and small denominations. This is the single most important thing for an Aussie to understand before landing: the country bills almost everything in USD, including hotel rates, dive trips, restaurant menus, and tuk-tuk fares. Bring USD cash from Australia, exchange a small amount to KHR at the airport for sub-dollar change, and you're set.
How much USD to bring from Australia depends on how long you're staying and how cash-heavy your itinerary is. For a 7–10 day Aussie trip with hotels paid on a credit card and meals/transport in cash, $200–500 USD (~$305–765 AUD) in mixed denominations is the practical range. Pull the USD from your Australian bank in $20s, $10s, $5s, and $1s — large $100 notes are harder to break with tuk-tuk drivers and small market vendors. Skip $50s and $100s if you can; they're more often refused than accepted in everyday Cambodia transactions.
The KTI airport currency-exchange counter sits in the arrivals hall and typically posts a rate of 4,000–4,100 KHR per USD in 2026. The street rate in Phnom Penh is fractionally better (around 4,050–4,150 KHR per USD), but the airport spread is small enough that it isn't worth chasing if you only need a small amount. Aim to exchange $10–20 USD at the airport into riel — that gives you roughly 40,000–82,000 KHR which is plenty for a day of small change, water bottles, tuk-tuk top-ups, and tip money.
Do not exchange your full USD stash at KTI. Most Cambodian merchants accept USD directly without a conversion fee, and you'll lose money rolling everything into riel only to roll it back later. The riel you do hold is for transactions under $1 USD where USD coins do not circulate (Cambodia uses no USD coins — change under $1 is given in riel).
Three ATM brands matter in the KTI arrivals hall: Wing, ABA Bank, and Acleda Bank. All three are reliable, all three dispense both USD and KHR (you choose at the screen), and all three charge a flat withdrawal fee of around $4–5 USD (~$6–8 AUD) per transaction on top of whatever your Australian bank charges. Pull USD in $20 and $10 notes for the cleanest first day.
Tell your Australian bank you're travelling before you fly — Westpac, Commonwealth, NAB, and ANZ all freeze cards on suspicious foreign withdrawals by default. A 30-second call to your bank's travel-notification line saves the headache of a frozen card on the second night. ING Direct and Macquarie offer rebated international ATM fees on certain accounts; if you have one of those, you save the $4–5 per withdrawal that ABA charges.
Five mistakes account for most of the messy KTI arrivals-hall sorts we see. None are catastrophic, but each costs an Aussie either time, money, or both.
If you're still scoping how much cash to budget for the whole Cambodia trip, our Cambodia visa cost article and the AUD conversion exchange-rate explainer go deeper on the full trip-cost arithmetic.
Done right, the whole on-arrival sort at KTI takes about fifteen minutes from the moment you walk out of customs. Here's the exact sequence we recommend Aussies follow.
The whole sort can be done while your suitcase is still rolling next to you. If you have a hotel pickup arranged, run the SIM and the riel exchange first and meet your driver at the carded pickup point — they'll wait a few minutes, and most are used to Aussies needing one quick top-up before the drive into the city.
Our full KTI airport guide covers the Immigration queue, baggage claim, and the road into Phnom Penh in detail — pair it with this arrivals-hall checklist for the complete first-hour roadmap.
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.
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