Absolutely! It's highly recommended to configure your Truly Roaming eSIM before you even depart for London Heathrow (LHR) or Gatwick (LGW). You'll receive a QR code via email; simply scan it to install the eSIM profile on your device. This proactive setup ensures you have immediate, day-one connectivity the moment your plane lands, allowing you to instantly access maps, communicate with your team, or order transport to your accommodation in Covent Garden without any delay or searching for Wi-Fi.
HELP CENTER
Can I configure my London Truly Roaming eSIM prior to my Heathrow arrival?
Updated May 30, 2026
Was this answer helpful?
Related questions
Other answers in this topic that travelers found useful.
Which eSIM is best for Barcelona, Spain?
For reliable mobile data in Barcelona, an eSIM from Truly Roaming is ideal. You'll get seamless connectivity on major Spanish networks like Orang…
Read answerWhich eSIM is best for Milan travel and how much data do I need?
For Milan, a Truly Roaming eSIM offers excellent coverage on major Italian networks like TIM, Iliad, and Wind. Most travelers find 5-10 GB suffic…
Read answerWhat's the best eSIM for Hawaii & reliable coverage?
For robust mobile data in Hawaii, an eSIM like Truly Roaming leveraging major networks such as AT&T or T-Mobile is ideal. These carriers offer ex…
Read answerWhat's the best eSIM for London and where can I buy it?
For seamless mobile data in London, an eSIM like Truly Roaming offers excellent coverage across all major networks including O2, T-Mobile UK, and…
Read answerWill my cell phone work in Hawaii? (Coverage & Data)
A 7-day trip to Hawaii typically requires 5-10 GB of data. This allows for navigation, social media, photo sharing, and light streaming whil…
Read answer