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

Return flights

01 Jun - 16 Jun	ITA Airways
02 Jun - 27 Jun	ITA Airways
05 Jun - 12 Jun	TAP
02 Jun - 09 Jun	Iberia
24 Jun - 02 Jul	Aer Lingus
25 Jun - 03 Jul	ITA Airways
17 Jun - 30 Jun	TAP
03 Jun - 10 Jun	Iberia	direct
20 Jun - 30 Jun	TAP
19 Jun - 03 Jul	Aer Lingus
01 Jun - 08 Jun	Iberia	direct
07 Jun - 14 Jun	Iberia	direct
05 Jun - 12 Jun	Iberia	direct
24 Jun - 01 Jul	Iberia	direct
30 Jun - 07 Jul	Iberia	direct
24 Jun - 02 Jul	Iberia	direct
26 Jun - 03 Jul	Iberia
25 Jun - 02 Jul	Iberia	direct
28 Jun - 05 Jul	Iberia	direct
29 Jun - 06 Jul	Iberia	direct

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

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.

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Cheapest return flights from Boston to Madrid in June from $570

Return flights