AirHint found the following cheapest return flights from Denver (DEN) to Dublin (DUB) in April 2026 (see full year).

Return flights

14 Apr - 21 Apr	Finnair
22 Apr - 29 Apr	Finnair
06 Apr - 13 Apr	British Airways
26 Apr - 03 May	British Airways
30 Apr - 07 May	British Airways
02 Apr - 09 Apr	Air Canada
10 Apr - 17 Apr	British Airways
18 Apr - 25 Apr	KLM

Also check the deals for one-way flights from Denver to Dublin in April.

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 Denver to Dublin in April from 410€

Return flights