This is live pricing from Travelpayouts' aggregation of 40+ booking engines. The $685 fare is the cheapest current round-trip from Detroit (DTW) to BCN on JetBlue flight B61419, departing 2026-08-12 at 06:05 with return on 2026-08-26.

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