AirHint found the following cheapest return flights from Bilbao (BIO) to Buenos Aires (EZE) in March 2026 (see full year).

Return flights

07 Mar - 14 Mar	LATAM Airlines Group
02 Mar - 06 Mar	Vueling Airlines
16 Mar - 30 Mar	Air France
31 Mar - 27 Apr	Air Europa
10 Mar - 31 Mar	Air France
07 Mar - 16 Mar	Air Europa
19 Mar - 27 Mar	Air Europa
30 Mar - 20 Apr	Vueling Airlines
13 Mar - 24 Mar	Iberia
19 Mar - 10 Apr	Vueling Airlines
13 Mar - 23 Mar	Iberia
31 Mar - 29 Apr	Air Europa
31 Mar - 28 Apr	Vueling Airlines
29 Mar - 12 Apr	Vueling Airlines
27 Mar - 11 Apr	Vueling Airlines
31 Mar - 30 Apr	Vueling Airlines
19 Mar - 05 Apr	Air Europa
28 Mar - 11 Apr	KLM

Also check the deals for one-way flights from Bilbao 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 Bilbao to Buenos Aires in March from $1057

Return flights