Cheapest return IAH–BCN flights, July

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

Return flights

31 Jul - 07 Aug Air France
06 Jul - 13 Jul Spirit Airlines
05 Jul - 13 Jul Frontier Airlines
06 Jul - 20 Jul Spirit Airlines
01 Jul - 14 Jul Spirit Airlines
04 Jul - 18 Jul Air Canada
15 Jul - 20 Jul United
25 Jul - 04 Aug Frontier Airlines
10 Jul - 21 Jul Frontier Airlines
18 Jul - 27 Jul Frontier Airlines
19 Jul - 26 Jul Frontier Airlines
17 Jul - 29 Jul Frontier Airlines

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

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