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

Return flights

02 Aug - 13 Sep	LEVEL	direct
10 Aug - 24 Aug	LEVEL	direct
09 Aug - 24 Aug	LEVEL	direct
08 Aug - 22 Aug	LEVEL	direct
09 Aug - 22 Aug	LEVEL	direct
15 Aug - 22 Aug	Iberia	direct
13 Aug - 24 Aug	Iberia	direct
16 Aug - 24 Aug	LEVEL	direct
15 Aug - 24 Aug	LEVEL	direct
17 Aug - 24 Aug	Norse Atlantic Airways (UK)
14 Aug - 22 Aug	TAP
22 Aug - 06 Sep	LEVEL	direct
27 Aug - 03 Sep	Frontier Airlines
25 Aug - 02 Sep	TAP
24 Aug - 04 Sep	Air Europa
27 Aug - 17 Sep	Frontier Airlines
30 Aug - 07 Sep	Frontier Airlines
21 Aug - 01 Sep	TAP
22 Aug - 02 Sep	Iberia
31 Aug - 07 Sep	Spirit Airlines

Also check the deals for one-way flights from Miami to Barcelona 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 Miami to Barcelona in August from $393

Return flights