This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $677 fare is the cheapest current round-trip from Guadalajara (GDL) to BOS on Y4 flight Y45762, departing 2026-07-24 at 15:43 with return on 2026-08-02.

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