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

Return flights

22 Aug - 04 Sep	TAP
29 Aug - 07 Sep	TAP
19 Aug - 28 Aug	TAP
19 Aug - 26 Aug	TAP
29 Aug - 06 Sep	TAP
25 Aug - 06 Sep	TAP
18 Aug - 28 Aug	TAP
23 Aug - 31 Aug	TAP
20 Aug - 30 Aug	TAP
17 Aug - 28 Aug	TAP
19 Aug - 31 Aug	TAP
12 Aug - 19 Aug	TAP
17 Aug - 02 Sep	TAP
12 Aug - 21 Aug	TAP
18 Aug - 29 Aug	TAP
26 Aug - 05 Sep	Lufthansa

Also check the deals for one-way flights from Bilbao to Miami 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 Miami in August from $406

Return flights