Most connectivity problems on a trip come down to a few small things you can sort before you leave home. None of them are complicated, and none of them need a signal to set up. The biggest one: get your data working before you fly. If you install your travel eSIM at home, on your own Wi-Fi, it's ready to connect the moment you land — no scrambling for airport Wi-Fi, no queue at a kiosk, no roaming bill you didn't agree to.
Set up your data before you leave home, and the airport stops being a problem
Set up before you fly
Install your eSIM while you're still on Wi-Fi at home. Add the plan to your phone, label it so you know which line is which, and leave it switched off until you arrive. Setting it up early doesn't start the clock — your plan's validity begins when you connect at your destination, not when you install it.
Turn on data roaming for the eSIM line — that's how a travel eSIM connects abroad, and it won't charge your home network. Download offline maps for where you're going. Keep your home SIM for calls and texts, and use the eSIM for data.