Cheap Flights from Seattle to Lisbon
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Deals from
Seattle
RatePunk searches hundreds of travel sites at once for deals on flights to Lisbon
Prices updated 1 day ago
462 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 15, 2026.)
Today’s best flight deals from Seattle to Lisbon
Explore current cheapest deals departing from Seattle to Lisbon
2027-02-10 – 2027-02-18
SEA - Lisbon
84% AI deal score
$746
$589
Round trip
2026-12-02 – 2026-12-09
SEA - Lisbon
84% AI deal score
$736
$590
Round trip
2027-03-02 – 2027-03-16
SEA - Lisbon
90% AI deal score
$799
$591
Round trip
2027-02-10 – 2027-02-19
SEA - Lisbon
84% AI deal score
$747
$592
Round trip
2027-02-10 – 2027-02-17
SEA - Lisbon
84% AI deal score
$747
$593
Round trip
2026-11-11 – 2026-11-18
SEA - Lisbon
81% AI deal score
$667
$594
Round trip
2026-11-02 – 2026-11-17
SEA - Lisbon
79% AI deal score
$637
$598
Round trip
2026-11-16 – 2026-11-23
SEA - Lisbon
81% AI deal score
$670
$600
Round trip
2027-01-10 – 2027-01-26
SEA - Lisbon
82% AI deal score
$690
$601
Round trip
2027-03-02 – 2027-03-09
SEA - Lisbon
90% AI deal score
$788
$601
Round trip
