SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
LISPortela Airport
Lisbon, Portugal
$796 USD
-44%$446 USD
Verified Nov 29, 2025 at 10:15 AMMarch 2026
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Fair Availability
20% of dates checked are available within 10% of the lowest price
Saturday, March 14th, 2026
10 round-trip options
Returning
Thu, Mar 19, 2026•5 Day Trip
$981 USD
Returning
Fri, Mar 20, 2026•6 Day Trip
$786 USD
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Sat, Mar 21, 2026•7 Day Trip
$688 USD
Returning
Sun, Mar 22, 2026•8 Day Trip
$695 USD
Returning
Mon, Mar 23, 2026•9 Day Trip
$675 USD
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Tue, Mar 24, 2026•10 Day Trip
$674 USD
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Wed, Mar 25, 2026•11 Day Trip
$668 USD
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Thu, Mar 26, 2026•12 Day Trip
$675 USD
Returning
Fri, Mar 27, 2026•13 Day Trip
$664 USD
Returning
Sat, Mar 28, 2026•14 Day Trip
$779 USD