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

Return flights

03 Jul - 12 Jul	Lufthansa
01 Jul - 01 Aug	Lufthansa
28 Jul - 20 Aug	TAP
29 Jul - 05 Aug	Iberia
30 Jul - 02 Aug	Iberia
30 Jul - 06 Aug	Iberia
27 Jul - 03 Aug	Iberia
28 Jul - 04 Aug	Iberia
29 Jul - 19 Aug	Iberia
06 Jul - 20 Jul	Delta
16 Jul - 31 Jul	Delta	direct
01 Jul - 01 Aug	Air France	direct
12 Jul - 01 Aug	Lufthansa
09 Jul - 16 Jul	Iberia
13 Jul - 20 Jul	Iberia	direct
14 Jul - 21 Jul	Iberia	direct
15 Jul - 22 Jul	Iberia	direct
16 Jul - 23 Jul	Iberia	direct
20 Jul - 27 Jul	Iberia	direct
22 Jul - 29 Jul	Iberia	direct

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 627€

Return flights