Cheapest return flights from Seattle (SEA) to Buenos Aires (EZE)

Cheapest month: January 2027, from $ 1,030. Book in one tap, or open a month for every date.

All destinations from Seattle (SEA)

One-wayReturn

  • November 2026

    16 Nov – 1 Dec 15 nights
    $ 1,156 return
    Frontier Airlines
    Price seen 3 Nov
    November dates

  • January 2027

    20 Jan – 10 Feb 2027 21 nights
    $ 1,030 return Cheapest month
    Frontier Airlines
    Price seen 3 Nov
    January dates

  • February 2027

    21 Feb – 13 Mar 2027 20 nights
    $ 1,200 return
    Alaska Airlines
    Price seen 3 Nov
    February dates
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About these fares

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