This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $631 fare is the cheapest current round-trip from Guadalajara (GDL) to SDF on Y4 flight Y41052, departing 2026-07-21 at 06:11 with return on 2026-07-30.

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