The cheapest round-trip from Madrid to Washington is about 459 EUR, usually in August 2026; June 2026 is priciest, so booking the low month saves around 192 EUR (~29%). Typical fare ~482 EUR, from 242 priced fares. Flightmussy live data, updated 2026-06-05.
Cheap flights from Madrid (MAD) to Washington (IAD/DCA/BWI). Free, no signup, no ads, no tracking. Compare every airline across 12 months of fares on one heatmap — including low-cost carriers Google Flights often deprioritises.
Cheapest round-trip seen: 459 EUR, usually around August 2026. Typical fare ~482 EUR. Across the year prices range roughly 459–651 EUR — about 29% cheaper in the low season than the peak (June 2026).
Based on Flightmussy's live 12-month fare data; prices last updated 2026-06-05. Prices change constantly — search live for current fares.
Flightmussy is a free flight meta-search built by one person in Oslo. No signup, no ads, no tracking — email is optional, only for route price alerts. Compare fares across airlines and see 12 months of prices at a glance — including low-cost carriers Google Flights often deprioritises (Widerøe, Wizz Air, Norwegian, Ryanair). Pay with a card at the airline, or use the Crypto button on any result to check out in BTC, ETH, USDT, BNB or AVA via Travala.