Cheapest one-way MDW–DUB flights, September

AirHint found the following cheapest one-way flights from Chicago (MDW) to Dublin (DUB) in September 2026 (see full year).

One-Way flights

30 Sep Frontier Airlines
09 Sep Frontier Airlines
24 Sep Frontier Airlines
10 Sep Frontier Airlines
23 Sep Frontier Airlines
05 Sep Frontier Airlines
26 Sep Frontier Airlines
14 Sep Frontier Airlines
20 Sep Frontier Airlines
06 Sep WestJet

Also check the deals for return flights from Chicago to Dublin in September.

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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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