LHR to YYZ: distance bands, operating airlines, connection choices and disruption evidence for this direction of travel.
Examples, not a daily timetable. Confirm the operating airline, airports and stops on your booking.
The great-circle distance between LHR and YYZ is approximately 5,708 km, in the over 3,500 km band. This endpoint calculation does not add detours. For a through connection, check the original departure and last ticketed destination before selecting a compensation band.
Toronto Pearson is YYZ; Billy Bishop is YTZ, and Hamilton is YHM. A replacement sold as Toronto may use another airport, so keep the code and onward-transfer agreement. Heathrow–Toronto also has a Canadian passenger-rights dimension; a Canadian award and a UK award are not simply added for the same event.
LHR departure puts this direction within UK261's territorial scope on any operating airline. That does not establish payment: arrival delay, cancellation notice, replacement timings and the proven cause still matter. Assess YYZ–LHR separately; a return ticket does not make both directions identical.
For a domestic Canadian connection after Pearson, retain the entire reservation and final arrival. The Toronto-origin return is operator-dependent under UK261: British Airways is a UK example, while a non-UK/non-EU carrier requires a different analysis. Keep the airline's written cause for a separate Canadian APPR review.
Toronto Pearson's connection procedure depends on where you arrive from and where you fly next. Use the airport's connection guide with the actual replacement itinerary, especially when rerouting adds or changes a US sector.
Feroz Sheikh · Founder and editor, Doha, QatarReviewed 29 September 2026 · Not legal advice · Not a named lawyer review
About the editorPreliminary guidance, not legal advice or a compensation guarantee. Check your booking and official sources.