Toronto (YYZ) to London (LON): 3,546 miles (5,707 km) great-circle, about 7h 35m nonstop by our estimate. Cheapest fare observed: $487 round-trip on WestJet, with 1 stop, departing June 1, 2026.
$487 round-trip, WestJet WS34, departing 2026-06-01 at 22:55, returning 2026-06-09. The recorded itinerary left on a Monday, returning on a Tuesday 8 nights later; the fare was observed 37 days before departure. "Book this flight" opens Kiwi.com with the same airline and dates.
At $487, it ranked 13th of the 30 round-trip fares we recorded from YYZ (median $537). That is 13.7 cents per great-circle mile (round-trip price over one-way distance), below the YYZ median of 18.6 cents across 30 round-trip routes.
Routes from YYZ of similar length: Lisbon (3,567 mi) at $545 and Paris (3,741 mi) at $580.
WestJet had the cheapest fare on 16 of 30 YYZ routes. It is the 17th longest of the 30 routes we track from YYZ.
Of 49 departure airports with a fare to London, Toronto (YYZ) ranked 18th at $487. Lowest: $46 from Dublin (DUB); highest: $1356 from Sydney (SYD); 14 nonstop. Cheapest-fare airlines (routes): Ryanair (7), easyJet (4), Etihad (4), Frontier (4), Air Canada (3) and WestJet (3), plus 19 more.
That depends on your passport and trip, so check the official source for United Kingdom: GOV.UK: check if you need a UK visa. Connecting elsewhere? Check that country's transit rules too.
Travelpayouts fares (cheapest per route, observed April 25, 2026); OurAirports coordinates and elevations; IANA zones America/Toronto, Europe/London; flight time is our estimate.