This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $561 fare is the cheapest current round-trip from Calgary (YYC) to LIR on Air Canada flight AC154, departing 2026-09-04 at 23:55 with return on 2026-09-10.

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