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

Return flights

16 Mar - 23 Mar	Iberia
17 Mar - 24 Mar	Air Europa
02 Mar - 09 Mar	Iberia	direct
03 Mar - 10 Mar	Iberia	direct
05 Mar - 12 Mar	Iberia	direct
04 Mar - 11 Mar	Iberia
05 Mar - 08 Mar	Iberia	direct
06 Mar - 09 Mar	Iberia	direct
07 Mar - 10 Mar	Iberia	direct
18 Mar - 30 Mar	TAP
24 Mar - 03 Apr	KLM
29 Mar - 05 Apr	TAP
28 Mar - 06 Apr	TAP
27 Mar - 04 Apr	TAP
27 Mar - 05 Apr	TAP
27 Mar - 01 Apr	TAP
28 Mar - 04 Apr	TAP
24 Mar - 03 Apr	Finnair	direct
27 Mar - 05 Apr	Iberia	direct
28 Mar - 06 Apr	Finnair	direct

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

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

Cheapest return flights from Madrid to Boston in March from $393

Return flights