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Cheapest one-way flights from Washington (IAD) to Dublin (DUB), July

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Dates, airline, and price
Dates	Airline	Price
26 Jul	Icelandair
27 Jul	Porter Airlines (Canada) Ltd
25 Jul	Porter Airlines (Canada) Ltd
20 Jul	Allegiant Air
19 Jul	Porter Airlines (Canada) Ltd
27 Jul	Aer Lingus Direct Flight
18 Jul	Icelandair
17 Jul	Frontier Airlines
26 Jul	Aer Lingus Direct Flight
25 Jul	Aer Lingus Direct Flight

deals for return flights from Washington to Dublin in July.

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Updated Jul 13, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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Cheapest one-way flights from Washington (IAD) to Dublin (DUB), July

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