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

Return flights

15 Apr - 22 Apr	Iberia
13 Apr - 29 Apr	Finnair	direct
20 Apr - 27 Apr	Iberia
15 Apr - 27 Apr	Iberia
23 Apr - 28 Apr	Iberia
23 Apr - 12 May	TAP
20 Apr - 26 Apr	Air Canada
19 Apr - 26 Apr	Air Canada
07 Apr - 12 May	Iberia
17 Apr - 28 Apr	British Airways
17 Apr - 24 Apr	British Airways
14 Apr - 19 Apr	British Airways
17 Apr - 02 May	Air Canada
30 Apr - 03 May	Iberia	direct
24 Apr - 02 May	American Airlines
24 Apr - 02 May	Iberia	direct
23 Apr - 12 May	Aer Lingus	direct
28 Apr - 01 May	Iberia	direct
29 Apr - 02 May	Iberia	direct
07 Apr - 12 May	Iberia	direct

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

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 Madrid

Cheap car rent in Madrid

Cheapest return flights from Boston to Madrid in April from $307

Return flights