London eSIM Guide (2026): Tourist Data Before LHR
London travel eSIM: prepaid data before you land at LHR. EE / Vodafone UK alternative — QR on Wi-Fi, no airport SIM queue.
Visiting London? Buy a United Kingdom travel eSIM online, scan the QR on Wi-Fi before your flight, and enable data after landing at LHR — fixed prepaid price, no roaming on your home SIM.
Airports
- LHR (Heathrow)
- LGW (Gatwick)
- STN (Stansted)
- LTN (Luton)
Local networks (reference)
EE, Vodafone UK, O2, Three — a travel eSIM routes on partner networks; you do not need a local store visit.