Seattle / Tacoma (SEA) to Lisbon (LIS) flight deal from $446 USD in economy class

AAAmerican Airlines

AYFinnair

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

LIS

Portela Airport

Lisbon, Portugal

$805 USD

-45%$446 USD

Verified Oct 13, 2025 at 1:47 AM

October 2025

Today

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29 30 1 2 3 4 5 6 7 8 9 10 11 12 13$923 14$919 15$985 16$1,265 17$1,026 18$831 19$783 20$640 21$530 22$515 23$748 24$563 25$461 26$456 27$456 28$456 29$456 30$648 31$648 1$933 2$661

Limited Availability

10% of dates checked are available within 10% of the lowest price

Monday, October 13th, 2025

10 round-trip options

Returning

Sat, Oct 18, 2025•5 Day Trip

$1,944 USD

Google Flights

Returning

Sun, Oct 19, 2025•6 Day Trip

$1,013 USD

Google Flights

Returning

Mon, Oct 20, 2025•7 Day Trip

$949 USD

Google Flights

Returning

Tue, Oct 21, 2025•8 Day Trip

$923 USD

Google Flights

Returning

Wed, Oct 22, 2025•9 Day Trip

$939 USD

Google Flights

Returning

Thu, Oct 23, 2025•10 Day Trip

$924 USD

Google Flights

Returning

Fri, Oct 24, 2025•11 Day Trip

$1,075 USD

Google Flights

Returning

Sat, Oct 25, 2025•12 Day Trip

$1,196 USD

Google Flights

Returning

Sun, Oct 26, 2025•13 Day Trip

$1,227 USD

Google Flights

Returning

Mon, Oct 27, 2025•14 Day Trip

$1,195 USD

Google Flights