Cheapest return flights from Madrid to Boston in October from $344

Best time to book flights for Madrid (MAD) to Boston (BOS) flights at AirHint

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

Return flights

22 Oct - 02 Nov Fly Play
22 Oct - 26 Oct Fly Play
01 Oct - 05 Oct Delta
22 Oct - 27 Oct KLM
22 Oct - 28 Oct Delta
08 Oct - 15 Oct KLM
09 Oct - 30 Oct KLM
29 Oct - 05 Nov KLM
05 Oct - 11 Oct Delta
23 Oct - 30 Oct Air France
12 Oct - 29 Oct TAP
08 Oct - 17 Oct Delta
25 Oct - 12 Nov KLM
29 Oct - 05 Nov Iberia direct
22 Oct - 02 Nov Finnair direct
25 Oct - 12 Nov Finnair direct

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

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Boston

Cheap car rent in Boston