Cheapest return flights from Madrid to Boston in December from $468

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

Return flights

17 Dec - 17 Jan Iberia
17 Dec - 17 Jan American Airlines direct
25 Dec - 09 Jan Air Europa
24 Dec - 09 Jan Iberia
23 Dec - 11 Jan easyJet
25 Dec - 31 Dec Air Europa
23 Dec - 05 Jan Ryanair
24 Dec - 08 Jan Iberia
24 Dec - 31 Dec Iberia
29 Dec - 13 Jan Iberia
25 Dec - 01 Jan Air Europa
23 Dec - 10 Jan easyJet
06 Dec - 07 Dec TAP
17 Dec - 25 Dec KLM
26 Dec - 31 Dec TAP
26 Dec - 30 Dec TAP
11 Dec - 25 Dec KLM
24 Dec - 28 Dec Iberia
04 Dec - 08 Dec TAP
16 Dec - 29 Dec Iberia direct

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

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