SEA to LIS from $380 in economy – flightdeals.net

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American Airlines

AAAmerican Airlines

Finnair

British Airways

BABritish Airways

Iberia Airlines

IBIberia Airlines

One Way•Economy

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

Portela Airport

Lisbon, Portugal

$527 USD

-28%$380 USD

Verified 14 days ago

July 2026

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Sun

29 30 1 2 3 4$667 5$640 6$640 7$640 8$640 9$700 10$700 11$667 12$640 13$640 14$640 15$640 16$700 17$729 18$700 19$640 20$640 21$640 22$640 23$700 24$700 25$700 26$640 27$640 28$640 29$640 30$700 31$700 1$478 2$456

Fair Availability

30% of dates checked are available within 10% of the lowest price

Thursday, July 2nd, 2026

No flight details available for this date.