Buying a SIM Card or eSIM at Cambodia's Airport: What US Travelers Should Get
You can be online before you reach the taxi rank at Techo International. Here is exactly what to get at the airport as a US traveler — the SIM kiosks at arrivals, the eSIM you can set up before you fly, and the Metfone, Smart, and Cellcard prices you will actually see.
Should US travelers buy a SIM card at the Cambodia airport or get an eSIM?
Both work well at Techo International (KTI) in Phnom Penh and at Siem Reap. The easiest option is an eSIM you buy and install before you leave the US — install it over Wi-Fi at home, set it to activate on arrival, and you walk off the plane already online. If you would rather buy in person, carrier kiosks for Metfone, Smart, and Cellcard sit in the arrivals area, and a tourist SIM with a generous data bundle runs about $5 to $15 USD and takes roughly five minutes to set up. Bring your passport, because Cambodian law requires SIM registration. Either route beats US carrier international roaming, which often costs $10 or more per day, and your phone must be carrier-unlocked first.
نکات کلیدی
- Two ways to land online: install an eSIM before you leave the US and be connected the moment you touch down, or buy a local SIM at a carrier kiosk in the Techo (KTI) arrivals hall in about five minutes.
- Airport SIM bundles from Metfone, Smart, and Cellcard typically run $5 to $15 USD for a generous tourist data package — far cheaper than US carrier roaming at $10 or more per day.
- Buying a local SIM at the kiosk requires passport registration by law, so have your passport out — the same one tied to your Cambodia eVisa and e-Arrival Card.
- Airport kiosk prices are fair but a touch higher than a phone shop in town; the convenience of walking out already connected is usually worth the small premium.
- Your phone must be carrier-unlocked, and for an eSIM it must also be eSIM-capable — check both before you leave the US, because you cannot fix a locked phone after you land.
Getting online the moment you land at Techo (KTI)
What the SIM kiosks at Techo arrivals actually look like
Which carriers you will find at the kiosk
Airport kiosk pricing vs buying in town
eSIM before you fly vs a local SIM at the kiosk
The eSIM case: walk straight past the kiosk
The airport SIM case: the most data for the money
How to buy and activate, step by step
- Unlock and check your phone first
Before you leave the US, confirm your phone is carrier-unlocked, and for the eSIM route confirm it is eSIM-capable — you cannot fix a locked phone after you land.
- eSIM: buy and install at home
On home Wi-Fi, download an eSIM app like Airalo, Holafly, or Nomad, buy a Cambodia data plan, and scan the QR code to install it days before you fly.
- eSIM: set it to activate on arrival
Choose to start the plan on arrival and keep your US physical SIM for calls and two-factor texts, so you are online the moment your plane connects at Techo (KTI).
- Airport SIM: go to a kiosk after immigration
After you clear immigration and collect bags, head to a Metfone, Smart, or Cellcard kiosk in the KTI arrivals hall near the currency and transport desks.
سوالات متداول
Can I buy a SIM card at the Cambodia airport?
Yes. Carrier kiosks for Metfone, Smart, and Cellcard sit in the arrivals hall at Techo International (KTI) in Phnom Penh and at Siem Reap, near the currency exchange and transport desks. A tourist SIM with a generous data bundle takes about five minutes to set up once you have your passport out, and runs roughly $5 to $15 USD. If you prefer to land already connected, install an eSIM before you fly and walk straight past the kiosk.
How much does a SIM card cost at the Techo airport?
Airport SIM bundles from Metfone, Smart, or Cellcard typically run $5 to $15 USD for a generous tourist data package, depending on how much data and how many days you choose. Kiosk prices sit a dollar or two above buying in town, but you walk out of the terminal already connected. Either way it is far cheaper than US carrier international roaming, which often costs $10 or more per day.
Is it better to get an eSIM or a SIM at the Cambodia airport?
Get an eSIM if you want to land already online with no counter visit and keep your US number active for calls and two-factor texts, and if your phone is eSIM-capable. Get an airport SIM if you want the most data per dollar and a local Cambodian number for ride apps, and you do not mind swapping your US SIM out and registering at the kiosk. Both beat US carrier roaming, so it mostly comes down to convenience versus value.
Do I need my passport to buy a SIM at the airport?
Yes. Cambodian law requires every SIM to be registered to a passport, so have your passport ready at the kiosk — the same one tied to your eVisa and e-Arrival Card. The staff will scan or photograph it and register the SIM for you on the spot. An eSIM bought online before you fly does not require an in-person passport scan at a kiosk.
Will my US phone work in Cambodia?
It will if it is carrier-unlocked, and for an eSIM it must also be eSIM-capable. A phone locked to Verizon, AT&T, or T-Mobile will not accept a Cambodian SIM or eSIM, so ask your carrier to unlock it before you leave the US — you cannot fix a locked phone once you land. Check your settings for an eSIM option too, since older or budget phones may not have one.
Is there Wi-Fi at the Cambodia airport?
Yes. Techo International (KTI) has free terminal Wi-Fi you can use on the way out to message your hotel, pull up a ride, or check the kiosk plans before you buy a SIM. It is fine for the basics in arrivals. Travelers who installed an eSIM at home are simply online the moment the plane connects and do not need the airport Wi-Fi at all.
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