Cheapest return flights from Washington to Madrid in October from 400€

AirHint found the following cheapest return flights from Washington (IAD) to Madrid (MAD) in October 2026 (see full year).

Return flights

20 Oct - 27 Oct British Airways
05 Oct - 13 Oct British Airways
20 Oct - 27 Oct Finnair direct
06 Oct - 10 Nov Aer Lingus
15 Oct - 20 Oct British Airways direct
15 Oct - 19 Oct TAP
15 Oct - 19 Oct Iberia direct

Also check the deals for one-way flights from Washington to Madrid in October.

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