Cheapest return flights from Boston to Madrid in August from $555

Best time to book flights for Boston (BOS) to Madrid (MAD) flights at AirHint

AirHint found the following cheapest return flights from Boston (BOS) to Madrid (MAD) in August 2025 (see full year).

Return flights

20 Aug - 27 Aug Iberia direct
13 Aug - 20 Aug Iberia
28 Aug - 19 Sep Scandinavian Airlines
05 Aug - 12 Aug Iberia direct
06 Aug - 13 Aug Iberia direct
26 Aug - 02 Sep Iberia direct
27 Aug - 03 Sep Iberia direct
12 Aug - 19 Aug United
18 Aug - 25 Aug Iberia direct
21 Aug - 28 Aug Iberia direct
22 Aug - 29 Aug Iberia direct
25 Aug - 01 Sep Iberia direct
24 Aug - 31 Aug Iberia
19 Aug - 26 Aug Iberia
31 Aug - 07 Sep Iberia direct
28 Aug - 04 Sep Iberia direct
29 Aug - 05 Sep Iberia direct
28 Aug - 19 Sep Finnair direct
29 Aug - 01 Sep Iberia direct
30 Aug - 06 Sep Iberia direct

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

Skyscanner

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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