Can you activate an eSIM for Nha Trang before landing, using Wi‑Fi while your phone is in airplane mode?
Based on 2 discussions with 3 participants · Last activity: 11 days ago
TL;DR
Yes, you can buy and activate an eSIM before landing, even while the plane is still at the gate if Wi‑Fi is available. Airplane mode does not prevent Wi‑Fi from working, so setup can be done before you leave the airport.
What the community said
Travelers recommend not waiting until arrival in Nha Trang: you can purchase an eSIM in advance through services like Trip.com or Kaspersky eSIM and activate it before leaving the aircraft, as long as you have internet access.
11 days ago Trip.com, Kaspersky eSIM
You do not need to fully disable airplane mode to activate the eSIM: you can keep the phone in airplane mode and simply turn on Wi‑Fi. This is useful if you want to set up mobile data safely without triggering roaming.
11 days ago Wi‑Fi in airplane mode
A practical tip: if Wi‑Fi is available on the plane or at the gate, you can finish setting up the eSIM while still on the ground, before disembarking. That way your internet is ready as soon as you arrive in Nha Trang.
11 days ago activation at the gate