UK ETA Transit Documents 2026 — Complete Guide for Travelers

UK airport transit terminal for US travelers needing a UK ETA in 2026

TL;DR: US citizens need a UK ETA for transit that passes through UK border control — including every connection at Gatwick. A genuine airside transit at Heathrow or Manchester, where you never pass border control, is currently exempt (a temporary exemption kept under review). The ETA costs £20 and is applied for through the official … Read more about UK ETA Transit Documents 2026 — Complete Guide for Travelers