Cheapest return flights from Houston to Barcelona in September from $509

AirHint found the following cheapest return flights from Houston (IAH) to Barcelona (BCN) in September 2025 (see full year).

Return flights

28 Sep - 07 Oct Spirit Airlines
27 Sep - 10 Oct Spirit Airlines
07 Sep - 10 Sep Frontier Airlines
29 Sep - 15 Oct Iberia
30 Sep - 07 Oct United
13 Sep - 20 Sep Frontier Airlines
05 Sep - 16 Sep Frontier Airlines
25 Sep - 01 Oct Turkish Airlines
05 Sep - 13 Sep Frontier Airlines
27 Sep - 06 Oct Spirit Airlines
30 Sep - 06 Oct United
17 Sep - 25 Sep Turkish Airlines
16 Sep - 28 Sep Turkish Airlines
21 Sep - 05 Oct Spirit Airlines
10 Sep - 13 Sep Frontier Airlines
19 Sep - 26 Sep Frontier Airlines
18 Sep - 23 Sep Spirit Airlines
10 Sep - 15 Sep Spirit Airlines
24 Sep - 01 Oct United
28 Sep - 05 Oct United

Also check the deals for one-way flights from Houston to Barcelona in September.

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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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