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

Return flights

27 Aug - 04 Sep	Vueling Airlines
28 Aug - 02 Sep	Vueling Airlines
29 Aug - 02 Sep	Vueling Airlines
28 Aug - 06 Sep	Vueling Airlines
29 Aug - 04 Sep	Delta
26 Aug - 08 Sep	Wizz Air Malta
28 Aug - 07 Sep	Delta
28 Aug - 10 Sep	Delta
29 Aug - 31 Aug	Delta
29 Aug - 03 Sep	Delta
27 Aug - 03 Sep	Delta
08 Aug - 11 Aug	Delta
08 Aug - 12 Aug	Delta
20 Aug - 25 Aug	Vueling Airlines
25 Aug - 31 Aug	Delta
20 Aug - 26 Aug	Delta
22 Aug - 26 Aug	Delta
13 Aug - 26 Aug	Delta
08 Aug - 12 Aug	Lufthansa	direct
19 Aug - 26 Aug	Delta

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 424€

Return flights