Cheapest return flights from Chicago to Dublin in September from $598

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 September 2025 (see full year).

Return flights

08 Sep - 18 Sep Delta
01 Sep - 08 Sep Delta
09 Sep - 15 Sep Porter Airlines (Canada) Ltd
07 Sep - 14 Sep Air France
10 Sep - 14 Sep Delta
05 Sep - 20 Sep Delta
28 Sep - 05 Oct Delta
24 Sep - 28 Sep Delta
17 Sep - 21 Sep Delta

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

Skyscanner

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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