Cheapest one-way flights from Seattle (SEA) to Buenos Aires (EZE), December

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
14 Dec Alaska Airlines
23 Dec Alaska Airlines
15 Dec Alaska Airlines
16 Dec Alaska Airlines
17 Dec Alaska Airlines
20 Dec Alaska Airlines
19 Dec Frontier Airlines
18 Dec Alaska Airlines
30 Dec Delta
03 Dec United
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deals for return flights from Seattle to Buenos Aires in December.

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Updated Jul 21, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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