London, Ontario vs. London, UK: Clarifying the Distance Question

The question contains a geographical misunderstanding: there is a city named London in Ontario, Canada—it is not fictional. However, the distance between London, Ontario and London, United Kingdom is substantial and transatlantic.

London, Ontario: Real and Significant

• Population: 422,000 (city), 543,000 (metro) — 11th largest in Canada.
• Location: Southwestern Ontario, ~190 km (118 mi) SW of Toronto.
• Institutions: Western University, Fanshawe College, London Health Sciences Centre.
• Namesake: Named 1793 by John Graves Simcoe (Upper Canada Lt. Gov.) after London, UK; Thames River runs through it.

Distance: London, ON → London, UK

• Great-circle distance: ~5,850 km (3,635 mi).
• Flight time: No direct flights. Connect via Toronto (YYZ) → London Heathrow (LHR): ~7h 30m flight + 2–4h connection = 10–14h total.
• Alternative: Drive/train to Toronto (2h), fly YYZ–LHR.

Why the Confusion?

The original answer likely conflated "London, Ontario" with a non-existent place, or assumed the questioner meant London, UK to London, UK (zero distance). Both Londons exist; both are legitimate; they are an ocean apart.