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

Return flights

10 Mar - 20 Mar	Ryanair
24 Mar - 09 Apr	Aer Lingus
05 Mar - 07 Mar	Ryanair
03 Mar - 12 Mar	Ryanair
07 Mar - 21 Mar	Ryanair
16 Mar - 23 Mar	Air Canada
29 Mar - 09 Apr	Ryanair
24 Mar - 29 Mar	Turkish Airlines
13 Mar - 29 Mar	Air Canada
29 Mar - 11 Apr	Ryanair
01 Mar - 26 Mar	Ryanair
26 Mar - 15 Apr	Aer Lingus
23 Mar - 13 Apr	Aer Lingus
23 Mar - 30 Mar	Aer Lingus
14 Mar - 17 Mar	WestJet
21 Mar - 06 Apr	Aer Lingus
21 Mar - 10 Apr	Ryanair
26 Mar - 18 Apr	Aer Lingus
28 Mar - 12 Apr	Ryanair
28 Mar - 11 Apr	Ryanair

Also check the deals for one-way flights from Dublin to Buenos Aires 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 Dublin to Buenos Aires in March from 922€

Return flights