Cheapest return flights from St. Louis to Dublin in September from $927

Best time to book flights for St. Louis (STL) to Dublin (DUB) flights at AirHint

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

Return flights

08 Sep - 15 Sep United
29 Sep - 06 Oct United

Also check the deals for one-way flights from St. Louis 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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