This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $687 fare is the cheapest current round-trip from Edmonton (YEG) to LON on WestJet flight WS3303, departing 2026-10-17 at 12:10 with return on 2026-11-07.

Clicking "Book this flight" opens Kiwi.com with this exact flight pre-filtered — same airline, same dates, same passenger count.