AirHint found the following cheapest return flights from Cologne (CGN) to Dublin (DUB) in July 2025 (see full year).

Return flights

30 Jul - 06 Aug	Ryanair	direct
30 Jul - 20 Aug	Ryanair	direct
30 Jul - 13 Aug	Ryanair	direct
30 Jul - 08 Aug	Ryanair	direct
30 Jul - 15 Aug	Ryanair	direct
23 Jul - 29 Jul	Ryanair
30 Jul - 04 Aug	Ryanair
25 Jul - 06 Aug	Ryanair	direct
30 Jul - 03 Aug	Ryanair
30 Jul - 01 Aug	Ryanair	direct
30 Jul - 02 Aug	Ryanair
16 Jul - 18 Jul	Ryanair	direct
21 Jul - 23 Jul	Ryanair
28 Jul - 30 Jul	Ryanair
25 Jul - 29 Jul	Ryanair
17 Jul - 18 Jul	Eurowings
23 Jul - 26 Jul	Lufthansa
24 Jul - 26 Jul	Lufthansa
24 Jul - 29 Jul	Lufthansa
24 Jul - 30 Jul	Lufthansa

Also check the deals for one-way flights from Cologne to Dublin in July.

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

Cheapest return flights from Cologne to Dublin in July from $114

Return flights