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

Return flights

21 Jul - 04 Aug	TAP
28 Jul - 01 Aug	TAP
23 Jul - 26 Jul	Lufthansa
22 Jul - 30 Jul	Lufthansa
31 Jul - 12 Aug	Lufthansa
16 Jul - 23 Jul	Lufthansa
03 Jul - 19 Jul	Lufthansa
02 Jul - 15 Jul	Lufthansa
27 Jul - 09 Aug	TAP
02 Jul - 11 Jul	Lufthansa
03 Jul - 17 Jul	Lufthansa
02 Jul - 09 Jul	Lufthansa
24 Jul - 07 Aug	Lufthansa
02 Jul - 12 Jul	Lufthansa
23 Jul - 27 Jul	Lufthansa
21 Jul - 11 Aug	TAP
30 Jul - 02 Aug	Iberia
27 Jul - 03 Aug	Iberia
28 Jul - 04 Aug	Iberia
29 Jul - 05 Aug	Iberia

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

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 Madrid to Boston in July from $701

Return flights