Cheapest one-way flights from Seattle to Buenos Aires in May from 616€

AirHint found the following cheapest one-way flights from Seattle (SEA) to Buenos Aires (AEP) in May 2026 (see full year).

One-Way flights

04 May LATAM Airlines Group
07 May LATAM Airlines Group
10 May LATAM Airlines Group
13 May LATAM Airlines Group
19 May LATAM Airlines Group
25 May LATAM Airlines Group
28 May LATAM Airlines Group
31 May LATAM Airlines Group
01 May LATAM Airlines Group
16 May LATAM Airlines Group

Also check the deals for return flights from Seattle to Buenos Aires in May.

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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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