Cheapest return ORD–DUB flights, May

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

Return flights

01 May - 08 May Icelandair
25 May - 28 May Air Canada
01 May - 12 May Icelandair
03 May - 10 May Icelandair
03 May - 13 May Icelandair
12 May - 27 May Spirit Airlines
04 May - 11 May jetBlue
05 May - 12 May jetBlue
02 May - 09 May jetBlue
05 May - 19 May Spirit Airlines
27 May - 05 Jun Aer Lingus direct
26 May - 09 Jun Aer Lingus direct
31 May - 09 Jun Aer Lingus direct
24 May - 09 Jun Aer Lingus direct
28 May - 08 Jun Frontier Airlines
30 May - 09 Jun Air Canada
30 May - 11 Jun Air Canada
29 May - 08 Jun Frontier Airlines
28 May - 16 Jun Spirit Airlines
31 May - 07 Jun Spirit Airlines

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

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