Cheapest return flights from Chicago to Dublin in May from $601

AirHint found the following cheapest return flights from Chicago (MDW) to Dublin (DUB) in May 2026 (see full year).

Return flights

05 May - 19 May Delta
04 May - 25 May Delta
12 May - 19 May Delta
19 May - 24 May Porter Airlines (Canada) Ltd
03 May - 25 May Delta
03 May - 16 May Delta
14 May - 21 May Delta
28 May - 04 Jun Delta
26 May - 08 Jun Delta
19 May - 23 May Porter Airlines (Canada) Ltd
05 May - 08 May Porter Airlines (Canada) Ltd
04 May - 08 May Porter Airlines (Canada) Ltd
29 May - 06 Jun Porter Airlines (Canada) Ltd
27 May - 02 Jun Porter Airlines (Canada) Ltd
23 May - 03 Jun WestJet
30 May - 06 Jun Air France
27 May - 09 Jun Air France

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

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