Cheapest return flights from Madrid to Boston in December from 402€

AirHint found the following cheapest return flights from Madrid (MAD) to Boston (BOS) in December 2025 (see full year).

Return flights

25 Dec - 18 Jan Iberia
25 Dec - 18 Jan Finnair direct
04 Dec - 08 Dec Iberia
06 Dec - 09 Dec Iberia
06 Dec - 08 Dec Iberia
06 Dec - 11 Dec Iberia direct
05 Dec - 08 Dec British Airways direct
05 Dec - 08 Dec Iberia
04 Dec - 07 Dec Iberia
06 Dec - 07 Dec Iberia
05 Dec - 07 Dec Iberia
12 Dec - 08 Jan Delta
17 Dec - 08 Jan Delta
05 Dec - 10 Dec ITA Airways
24 Dec - 07 Jan Iberia
28 Dec - 11 Jan KLM
28 Dec - 10 Jan KLM
27 Dec - 01 Jan TAP
23 Dec - 18 Jan SWISS
26 Dec - 01 Jan TAP

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

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