Cheapest return flights from Denver to Dublin in September from $596

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

Return flights

04 Sep - 09 Sep jetBlue
09 Sep - 16 Sep jetBlue
04 Sep - 09 Sep Aer Lingus direct
04 Sep - 11 Sep Aer Lingus direct
05 Sep - 12 Sep Aer Lingus direct
02 Sep - 13 Sep Aer Lingus direct
09 Sep - 16 Sep Aer Lingus direct
06 Sep - 13 Sep Aer Lingus direct
02 Sep - 09 Sep Aer Lingus direct
03 Sep - 12 Sep Air Canada
23 Sep - 04 Oct jetBlue
17 Sep - 02 Oct Air Canada

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

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.