Cheapest return flights from Boston to Madrid in May from 507€

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

Return flights

05 May - 13 May Turkish Airlines
06 May - 17 May TAP
10 May - 16 May TAP
06 May - 16 May TAP
06 May - 11 May TAP
06 May - 19 May Turkish Airlines
13 May - 20 May TAP
01 May - 20 May LEVEL
06 May - 10 May TAP
10 May - 24 May TAP
13 May - 24 Jun TAP
27 May - 10 Jun TAP
01 May - 17 Jun Turkish Airlines
31 May - 08 Jun Air France
31 May - 15 Jun TAP
28 May - 10 Jun KLM
17 May - 01 Jun Air France
28 May - 11 Jun KLM
29 May - 11 Jun KLM
27 May - 03 Jun Iberia direct

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

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