AirHint found the following cheapest return flights from Houston (IAH) to Dublin (DUB) in March 2026 (see full year).

Return flights

25 Mar - 01 Apr	British Airways
31 Mar - 07 Apr	British Airways
30 Mar - 06 Apr	British Airways
26 Mar - 02 Apr	British Airways
27 Mar - 03 Apr	British Airways
29 Mar - 05 Apr	Iberia
11 Mar - 28 Mar	British Airways
28 Mar - 04 Apr	British Airways
12 Mar - 28 Mar	British Airways
13 Mar - 28 Mar	Air Canada
13 Mar - 29 Mar	Turkish Airlines

Also check the deals for one-way flights from Houston to Dublin 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 Dublin in March from $577

Return flights