Cheapest return flights from Washington to Dublin in July from $570

AirHint found the following cheapest return flights from Washington (IAD) to Dublin (DUB) in July 2026 (see full year).

Return flights

01 Jul - 14 Jul Icelandair
02 Jul - 12 Jul Icelandair
17 Jul - 26 Jul Icelandair
16 Jul - 26 Jul Icelandair
23 Jul - 26 Jul Icelandair
19 Jul - 26 Jul Icelandair
30 Jul - 04 Aug Aer Lingus direct
24 Jul - 31 Jul Aer Lingus direct
23 Jul - 26 Jul Aer Lingus direct
21 Jul - 31 Jul Aer Lingus direct
22 Jul - 28 Jul Aer Lingus direct

Also check the deals for one-way flights from Washington to Dublin in July.

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