Cheapest one-way flights from Seattle to Buenos Aires in April from $437

Best time to book flights for Seattle (SEA) to Buenos Aires (EZE) flights at AirHint

AirHint found the following cheapest one-way flights from Seattle (SEA) to Buenos Aires (EZE) in April 2025 (see full year).

One-Way flights

07 Apr Frontier Airlines

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

Skyscanner

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 Buenos Aires

Cheap car rent in Buenos Aires