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

Return flights

03 Mar - 10 Mar	American Airlines
11 Mar - 19 Mar	Air Canada
27 Mar - 03 Apr	Lufthansa
02 Mar - 09 Mar	Aer Lingus
05 Mar - 12 Mar	Aer Lingus
11 Mar - 18 Mar	Aer Lingus
17 Mar - 24 Mar	Aer Lingus
26 Mar - 02 Apr	Aer Lingus
08 Mar - 15 Mar	Aer Lingus
20 Mar - 27 Mar	Aer Lingus
23 Mar - 30 Mar	Aer Lingus
29 Mar - 05 Apr	Aer Lingus
14 Mar - 21 Mar	Aer Lingus

Also check the deals for one-way flights from St. Louis 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 St. Louis to Dublin in March from $474

Return flights