Cheapest one-way flights from Boston to Madrid in August from 172€

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

One-Way flights

19 Aug TAP
18 Aug TAP
16 Aug Iberia direct
19 Aug Iberia direct
18 Aug Iberia direct
21 Aug Air Canada
17 Aug British Airways direct
26 Aug TAP
25 Aug TAP
31 Aug Fly Play

Also check the deals for return 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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