Cheap Flights from Seattle to Buenos Aires
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Deals from
Seattle
RatePunk searches hundreds of travel sites at once for deals on flights to Buenos Aires
Prices updated 6 days ago
457 airlines compared
80%+ AI score for best value
Fares are subject to change and may not be available for all dates. (Data last updated Sep 7, 2026.)
Today’s best flight deals from Seattle to Buenos Aires
Explore current cheapest deals departing from Seattle to Buenos Aires
2026-11-09 – 2026-11-17
SEA - Buenos Aires
80% AI deal score
$1,113
$943
Round trip
2026-10-05 – 2026-10-24
SEA - Buenos Aires
81% AI deal score
$1,118
$970
Round trip
2026-10-04 – 2026-10-20
SEA - Buenos Aires
82% AI deal score
$1,126
$978
Round trip
2026-12-01 – 2026-12-12
SEA - Buenos Aires
88% AI deal score
$1,267
$1,009
Round trip
2026-10-01 – 2026-10-26
SEA - Buenos Aires
78% AI deal score
$1,117
$1,022
Round trip
2026-11-16 – 2026-11-22
SEA - Buenos Aires
78% AI deal score
$1,130
$1,022
Round trip
2026-11-04 – 2026-11-12
SEA - Buenos Aires
76% AI deal score
$1,104
$1,023
Round trip
2026-11-13 – 2026-11-22
SEA - Buenos Aires
74% AI deal score
$1,046
$1,026
Round trip
2026-11-12 – 2026-11-22
SEA - Buenos Aires
74% AI deal score
$1,040
$1,031
Round trip
2026-11-03 – 2026-11-10
SEA - Buenos Aires
79% AI deal score
$1,121
$1,037
Round trip
