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

Return flights

08 Aug - 19 Aug	Air Canada
05 Aug - 19 Aug	Air Canada
31 Aug - 13 Sep	Lufthansa
12 Aug - 27 Aug	Air Canada
07 Aug - 19 Aug	Air Canada
18 Aug - 26 Aug	Air Canada
02 Aug - 02 Sep	Air Canada
11 Aug - 19 Aug	Air Canada
13 Aug - 20 Aug	Lufthansa
12 Aug - 19 Aug	Air Canada
23 Aug - 06 Sep	Air Canada
31 Aug - 14 Sep	Lufthansa
23 Aug - 05 Sep	Air Canada
19 Aug - 09 Sep	Lufthansa
14 Aug - 12 Sep	Lufthansa
17 Aug - 27 Aug	Air Canada
19 Aug - 02 Sep	Air Canada
06 Aug - 20 Aug	Air Canada
20 Aug - 08 Sep	Air Canada
18 Aug - 02 Sep	Lufthansa

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

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 New York to Madrid in August from $353

Return flights