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UK ETA Heathrow transit 2026 — airside vs landside rules for connecting flights

Home› Knowledgebase› UK ETA Guides› UK ETA Heathrow Transit 2026 UK ETA & Heathrow Transit 2026: Do You Need One for a Layover? By the application-eta.uk Expert Team · Last updated: March 2026 · 9 min read Quick Answer It depends on one thing: do you pass through UK border control? If you remain airside … Read more