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

Return flights

03 Mar - 10 Mar	United
01 Mar - 10 Mar	Air Canada
09 Mar - 18 Mar	British Airways
24 Mar - 02 Apr	Finnair
03 Mar - 12 Mar	Lufthansa
24 Mar - 31 Mar	Iberia
04 Mar - 18 Mar	Iberia
24 Mar - 03 Apr	British Airways
09 Mar - 17 Mar	Finnair
11 Mar - 19 Mar	Finnair
04 Mar - 11 Mar	Iberia
09 Mar - 16 Mar	British Airways
26 Mar - 09 Apr	British Airways
28 Mar - 06 Apr	British Airways
29 Mar - 05 Apr	Iberia

Also check the deals for one-way flights from Houston to Madrid 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 Madrid in March from 407€

Return flights