Cheapest return flights from Boston to Madrid in March from $306

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

Return flights

02 Mar - 10 Mar Iberia direct
04 Mar - 10 Mar Finnair direct
09 Mar - 18 Mar Lufthansa
07 Mar - 18 Mar Air Canada
22 Mar - 30 Mar Air Canada
15 Mar - 24 Mar Air Canada
16 Mar - 25 Mar SWISS
18 Mar - 30 Mar Air Canada
29 Mar - 07 Apr TAP
30 Mar - 08 Apr Aer Lingus
05 Mar - 12 Mar Air Canada
24 Mar - 30 Mar SWISS
30 Mar - 08 Apr American Airlines direct
27 Mar - 04 Apr Scandinavian Airlines
26 Mar - 04 Apr TAP
29 Mar - 03 Apr TAP
25 Mar - 06 Apr American Airlines
26 Mar - 02 Apr Iberia direct
29 Mar - 07 Apr Finnair direct
30 Mar - 02 Apr Iberia

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

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