AirHint found the following cheapest return flights from Houston (HOU) to Barcelona (BCN) in August 2026 (see full year).

Return flights

10 Aug - 18 Aug	Air Canada
11 Aug - 18 Aug	Air Canada
17 Aug - 31 Aug	Iberia
20 Aug - 03 Sep	Turkish Airlines
31 Aug - 14 Sep	Turkish Airlines
05 Aug - 13 Aug	Air Canada
10 Aug - 17 Aug	ITA Airways
05 Aug - 12 Aug	Air Canada
04 Aug - 12 Aug	Air Canada
04 Aug - 11 Aug	British Airways
03 Aug - 10 Aug	British Airways
09 Aug - 17 Aug	British Airways

Also check the deals for one-way flights from Houston 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 Houston to Barcelona in August from 538€

Return flights