This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $331 fare is the cheapest current round-trip from Edmonton (YEG) to SFO on WestJet flight WS159, departing 2026-08-26 at 07:30 with return on 2026-09-01.

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