Cheapest return flights from Chicago to Dublin in May from $449

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

Return flights

05 May - 13 May British Airways
05 May - 12 May United
05 May - 13 May Aer Lingus direct
05 May - 12 May Aer Lingus direct
04 May - 11 May SWISS
03 May - 10 May United
04 May - 14 May Lufthansa
01 May - 08 May Aer Lingus direct
03 May - 10 May Aer Lingus direct
04 May - 11 May Aer Lingus direct
31 May - 08 Jun Air Canada
30 May - 08 Jun Air Canada
25 May - 03 Jun Aer Lingus direct
31 May - 08 Jun Aer Lingus direct
28 May - 04 Jun Aer Lingus direct
29 May - 05 Jun Aer Lingus direct
31 May - 07 Jun Aer Lingus direct
28 May - 04 Jun United
30 May - 06 Jun TAP
28 May - 06 Jun Air Canada

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

Powered by

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.

Book a cheap hotel in Dublin

Cheap car rent in Dublin

Feel free to contact us with any feedback or request another flight research.