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

Return flights

17 Mar - 29 Mar	Delta
20 Mar - 03 Apr	Delta
21 Mar - 02 Apr	Delta
21 Mar - 03 Apr	Delta
21 Mar - 04 Apr	Delta
05 Mar - 12 Mar	Aer Lingus
14 Mar - 21 Mar	United
25 Mar - 01 Apr	Aer Lingus
15 Mar - 22 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.

Book a cheap hotel in Dublin

Cheap car rent in Dublin

Cheapest return flights from St. Louis to Dublin in March from 482€

Return flights