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

Return flights

04 Mar - 11 Mar	United
03 Mar - 10 Mar	United
10 Mar - 17 Mar	United
17 Mar - 24 Mar	United
24 Mar - 31 Mar	United
11 Mar - 18 Mar	United
02 Mar - 09 Mar	British Airways
18 Mar - 25 Mar	United
09 Mar - 16 Mar	British Airways
16 Mar - 23 Mar	British Airways
25 Mar - 01 Apr	Iberia
20 Mar - 11 Apr	Air Canada
18 Mar - 11 Apr	Lufthansa
26 Mar - 02 Apr	Iberia
31 Mar - 07 Apr	Turkish Airlines
19 Mar - 11 Apr	Turkish Airlines
27 Mar - 03 Apr	Turkish Airlines
30 Mar - 06 Apr	Turkish Airlines
29 Mar - 05 Apr	Turkish Airlines
28 Mar - 04 Apr	Turkish Airlines

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

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 March from $534

Return flights