Cheapest return flights from Madrid to Boston in October from $401

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

08 Oct - 12 Oct Air Canada
01 Oct - 05 Oct United
10 Oct - 13 Oct United
07 Oct - 18 Oct Lufthansa
07 Oct - 18 Oct Finnair direct
08 Oct - 12 Oct Finnair direct
01 Oct - 05 Oct Finnair direct
10 Oct - 13 Oct 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