This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $694 fare is the cheapest current round-trip from New York (LGA) to MAD on Air Canada flight AC725, departing 2026-09-04 at 19:55 with return on 2026-09-19.

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