AirHint found the following cheapest return flights from Frankfurt (FRA) to Dublin (DUB) in May 2026 (see full year).

Return flights

06 May - 13 May	Ryanair
18 May - 28 May	Ryanair
06 May - 07 May	Ryanair
11 May - 14 May	Ryanair
07 May - 14 May	Ryanair
01 May - 03 May	Ryanair
15 May - 19 May	Ryanair
18 May - 21 May	Ryanair
19 May - 21 May	Ryanair
02 May - 07 May	Ryanair
27 May - 03 Jun	Ryanair
31 May - 11 Jun	Aer Lingus	direct
31 May - 04 Jun	Aer Lingus	direct
29 May - 04 Jun	Aer Lingus	direct
27 May - 03 Jun	Aer Lingus	direct
26 May - 03 Jun	Ryanair
31 May - 03 Jun	Aer Lingus	direct
30 May - 04 Jun	Ryanair
27 May - 01 Jun	Ryanair
26 May - 05 Jun	Ryanair

Also check the deals for one-way flights from Frankfurt to Dublin in May.

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 Frankfurt to Dublin in May from $105

Return flights