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

Return flights

28 Aug - 14 Sep	Finnair
28 Aug - 12 Sep	Finnair
28 Aug - 07 Sep	Finnair
29 Aug - 04 Sep	Finnair
30 Aug - 04 Sep	Finnair
29 Aug - 08 Sep	Finnair
29 Aug - 05 Sep	American Airlines
30 Aug - 05 Sep	American Airlines
28 Aug - 04 Sep	Finnair
29 Aug - 07 Sep	Finnair
29 Aug - 31 Aug	Air France
28 Aug - 31 Aug	Delta
27 Aug - 31 Aug	Air France
26 Aug - 31 Aug	Delta
25 Aug - 31 Aug	KLM
23 Aug - 31 Aug	Air France
22 Aug - 31 Aug	KLM
26 Aug - 30 Aug	TAP
28 Aug - 31 Aug	Virgin Atlantic	direct
26 Aug - 29 Aug	TAP

Also check the deals for one-way flights from Madrid to New York 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 Madrid to New York in August from 438€

Return flights