Buy the Bhutan SIM after you clear Paro immigration, not before you apply for the visa. The visa is already approved online. Reddit threads on r/BhutanTravels ask whether eSIM is at the airport; the honest answer is sometimes a kiosk, more often a Thimphu store.
This page is connectivity only. Money is on Money in Bhutan. Safety is on Is Bhutan safe?.

The two networks
TashiCell and B-Mobile (Bhutan Telecom) cover Paro, Thimphu and Punakha well enough for maps and messaging. Mountain passes drop to 3G or nothing — download offline maps. Recent reports quote a TashiCell data eSIM around Nu. 600 for 5 GB, no voice. Physical tourist SIMs are still the airport default when a booth is open.
What the GSA does not sell
Our written fare is flights, then visa and SDF. A SIM is not in the quote. That is the GSA fact: we will not bury a tourist pack inside a ticket. Pay in ngultrum at the counter; keep the receipt.
Passport + the hotel / guide name is usually enough. Your guide can walk you to the Thimphu shop on night 2 of a 5D4N circuit.
Practical bits
- Unlock the phone in Bangkok.
- LINE and Google Maps work; some news sites are slower.
- WhatsApp is fine; do not expect Thai-bank SMS to arrive every time — download the bank app token before you fly.


