AirHint found the following cheapest return flights from Bilbao (BIO) to Newark (EWR) in August 2025 (see full year).

Return flights

21 Aug - 24 Aug	TAP
27 Aug - 31 Aug	TAP
21 Aug - 31 Aug	TAP
25 Aug - 02 Sep	TAP
29 Aug - 01 Sep	TAP
25 Aug - 08 Sep	TAP
27 Aug - 02 Sep	TAP
28 Aug - 03 Sep	TAP
29 Aug - 08 Sep	TAP
25 Aug - 01 Sep	TAP
29 Aug - 07 Sep	TAP
24 Aug - 31 Aug	TAP
24 Aug - 30 Aug	TAP
21 Aug - 27 Aug	TAP
27 Aug - 30 Aug	TAP
25 Aug - 30 Aug	TAP
26 Aug - 30 Aug	TAP
21 Aug - 30 Aug	TAP
29 Aug - 11 Sep	TAP
28 Aug - 10 Sep	TAP

Also check the deals for one-way flights from Bilbao to Newark 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 Bilbao to Newark in August from $437

Return flights