Every Washington–Madrid fare we track, measured against the route's typical price whenever there is enough cached history to build one. Subscribe in any RSS reader for free single-route price alerts — no account, no email needed.https://flight.dealsen-ushttps://flight.deals/flights/washington-to-madrid/#2026-09-18-2026-09-21-TKhttps://flight.deals/flights/washington-to-madrid/#2026-09-18-2026-09-21-TKWAS → MAD round-trip on Turkish Airlines, 2026-09-18 to 2026-09-21 (3 nights). Cached fare $534 vs typical $660.Tue, 01 Sep 2026 12:09:07 GMT