AirHint found the following cheapest one-way flights from Washington (IAD) to Dublin (DUB) in March 2026 (see full year).
One-Way flights
| 16 Mar | TAP | ||
| 15 Mar | TAP | ||
| 27 Mar | Breeze Airways | ||
| 02 Mar | United | direct | |
| 16 Mar | Aer Lingus | direct | |
| 15 Mar | Aer Lingus | direct | |
| 06 Mar | TAP | ||
| 06 Mar | United | direct | |
| 27 Mar | Lufthansa | direct |
Also check the deals for return flights from Washington to Dublin in March.
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