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

Return flights

04 Mar - 11 Mar	Air France
11 Mar - 18 Mar	Air France
18 Mar - 25 Mar	Air France
03 Mar - 10 Mar	Delta
10 Mar - 17 Mar	Delta
24 Mar - 31 Mar	KLM
01 Mar - 08 Mar	KLM
02 Mar - 09 Mar	Air France
16 Mar - 23 Mar	Air France
05 Mar - 12 Mar	Delta
25 Mar - 01 Apr	Air France
31 Mar - 07 Apr	KLM
30 Mar - 06 Apr	Air France
29 Mar - 05 Apr	KLM
28 Mar - 04 Apr	KLM
26 Mar - 02 Apr	Delta
27 Mar - 03 Apr	KLM
27 Mar - 05 Apr	Delta
27 Mar - 04 Apr	Delta

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

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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Cheapest return flights from Chicago to Dublin in March from 386€

Return flights