Cheapest return flights from Washington to Madrid in March from $396

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

Return flights

16 Mar - 25 Mar TAP
09 Mar - 16 Mar TAP
08 Mar - 19 Mar TAP
08 Mar - 16 Mar TAP
08 Mar - 12 Mar TAP
04 Mar - 12 Mar British Airways
22 Mar - 31 Mar Finnair direct
24 Mar - 31 Mar Aer Lingus
03 Mar - 12 Mar Iberia direct
10 Mar - 25 Mar Aer Lingus
23 Mar - 01 Apr Air France
23 Mar - 02 Apr Air France
15 Mar - 08 Apr KLM
24 Mar - 02 Apr Delta
24 Mar - 01 Apr Delta
15 Mar - 08 Apr Finnair direct
31 Mar - 08 Apr United
31 Mar - 07 Apr KLM
29 Mar - 07 Apr British Airways
24 Mar - 03 Apr United

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

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