Cheapest return flights from Houston to Dublin in September from $573

Best time to book flights for Houston (IAH) to Dublin (DUB) flights at AirHint

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

Return flights

02 Sep - 09 Sep United
03 Sep - 10 Sep Air Canada
30 Sep - 07 Oct United
08 Sep - 15 Sep British Airways
04 Sep - 11 Sep United
05 Sep - 12 Sep Air Canada
07 Sep - 14 Sep Air Canada
06 Sep - 13 Sep Air Canada

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

Skyscanner

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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