Cheapest return flights from Chicago to Dublin in May from $778

Best time to book flights for Chicago (MDW) to Dublin (DUB) flights at AirHint

AirHint found the following cheapest return flights from Chicago (MDW) to Dublin (DUB) in May 2025 (see full year).

Return flights

25 May - 03 Jun Air France
11 May - 18 May Air France
14 May - 21 May Delta
29 May - 01 Jun Delta
27 May - 18 Jun Porter Airlines (Canada) Ltd
25 May - 04 Jun Porter Airlines (Canada) Ltd
22 May - 26 May Porter Airlines (Canada) Ltd
28 May - 01 Jun Porter Airlines (Canada) Ltd
16 May - 23 May Frontier Airlines
23 May - 26 May Porter Airlines (Canada) Ltd
15 May - 18 May Air Transat
11 May - 13 May Air France
11 May - 12 May Air France

Also check the deals for one-way flights from Chicago to Dublin in May.

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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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