Flights from Seattle to Vieira de Leiria

Cheapest flights from Seattle

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Oct 25 - Mon, Nov 3

SEA

Seattle - Tacoma Intl.

LIS

Humberto Delgado

$526 Roundtrip, found 4 days ago

$526

Roundtrip

found 4 days ago

Select United flight, departing Sat, Oct 25 from Seattle - Tacoma Intl. to Humberto Delgado, returning Mon, Nov 3, priced at $526 found 4 days ago

Sat, Oct 25 - Sun, Nov 2

SEA

Seattle - Tacoma Intl.

LIS

Humberto Delgado

$535 Roundtrip, found 4 days ago

$535

Roundtrip

found 4 days ago

Select Icelandair flight, departing Sat, Oct 25 from Seattle - Tacoma Intl. to Humberto Delgado, returning Sun, Nov 2, priced at $535 found 4 days ago

Sat, Oct 25 - Wed, Nov 5

SEA

Seattle - Tacoma Intl.

LIS

Humberto Delgado

$537 Roundtrip, found 4 days ago

$537

Roundtrip

found 4 days ago

Select United flight, departing Sat, Oct 25 from Seattle - Tacoma Intl. to Humberto Delgado, returning Wed, Nov 5, priced at $537 found 4 days ago

Tue, Oct 28 - Tue, Nov 4

SEA

Seattle - Tacoma Intl.

LIS

Humberto Delgado

$547 Roundtrip, found 4 days ago

$547

Roundtrip

found 4 days ago

Select Lufthansa flight, departing Tue, Oct 28 from Seattle - Tacoma Intl. to Humberto Delgado, returning Tue, Nov 4, priced at $547 found 4 days ago

Tue, Oct 28 - Tue, Nov 4

SEA

Seattle - Tacoma Intl.

LIS

Humberto Delgado

$547 Roundtrip, found 4 days ago

$547

Roundtrip

found 4 days ago

Select United flight, departing Tue, Oct 28 from Seattle - Tacoma Intl. to Humberto Delgado, returning Tue, Nov 4, priced at $547 found 4 days ago

Wed, Oct 29 - Wed, Nov 5

SEA

Seattle - Tacoma Intl.

LIS

Humberto Delgado

$549 Roundtrip, found 4 days ago

$549

Roundtrip

found 4 days ago

Select United flight, departing Wed, Oct 29 from Seattle - Tacoma Intl. to Humberto Delgado, returning Wed, Nov 5, priced at $549 found 4 days ago

Tue, Oct 28 - Wed, Nov 5

SEA

Seattle - Tacoma Intl.

LIS

Humberto Delgado

$558 Roundtrip, found 4 days ago

$558

Roundtrip

found 4 days ago

Select United flight, departing Tue, Oct 28 from Seattle - Tacoma Intl. to Humberto Delgado, returning Wed, Nov 5, priced at $558 found 4 days ago

Tue, Oct 28 - Tue, Nov 4

SEA

Seattle - Tacoma Intl.

LIS

Humberto Delgado

$559 Roundtrip, found 4 days ago

$559

Roundtrip

found 4 days ago

Select United flight, departing Tue, Oct 28 from Seattle - Tacoma Intl. to Humberto Delgado, returning Tue, Nov 4, priced at $559 found 4 days ago

Tue, Oct 28 - Tue, Nov 4

SEA

Seattle - Tacoma Intl.

LIS

Humberto Delgado

$561 Roundtrip, found 4 days ago

$561

Roundtrip

found 4 days ago

Select British Airways flight, departing Tue, Oct 28 from Seattle - Tacoma Intl. to Humberto Delgado, returning Tue, Nov 4, priced at $561 found 4 days ago

Sat, Oct 25 - Sat, Nov 1

SEA

Seattle - Tacoma Intl.

LIS

Humberto Delgado

$561 Roundtrip, found 4 days ago

$561

Roundtrip

found 4 days ago

Select Delta flight, departing Sat, Oct 25 from Seattle - Tacoma Intl. to Humberto Delgado, returning Sat, Nov 1, priced at $561 found 4 days ago

Tue, Oct 28 - Tue, Nov 4

SEA

Seattle - Tacoma Intl.

LIS

Humberto Delgado

$593 Roundtrip, found 4 days ago

$593

Roundtrip

found 4 days ago

Select Air Canada flight, departing Tue, Oct 28 from Seattle - Tacoma Intl. to Humberto Delgado, returning Tue, Nov 4, priced at $593 found 4 days ago

Tue, Oct 28 - Tue, Nov 4

SEA

Seattle - Tacoma Intl.

LIS

Humberto Delgado

$665 Roundtrip, found 4 days ago

$665

Roundtrip

found 4 days ago

Select American Airlines flight, departing Tue, Oct 28 from Seattle - Tacoma Intl. to Humberto Delgado, returning Tue, Nov 4, priced at $665 found 4 days ago

Tue, Oct 28 - Tue, Nov 4

SEA

Seattle - Tacoma Intl.

LIS

Humberto Delgado

$1,006 Roundtrip, found 4 days ago

$1,006

Roundtrip

found 4 days ago

Select KLM flight, departing Tue, Oct 28 from Seattle - Tacoma Intl. to Humberto Delgado, returning Tue, Nov 4, priced at $1,006 found 4 days ago

Tue, Oct 28 - Tue, Nov 4

SEA

Seattle - Tacoma Intl.

LIS

Humberto Delgado

$1,049 Roundtrip, found 4 days ago

$1,049

Roundtrip

found 4 days ago

Select Iberia flight, departing Tue, Oct 28 from Seattle - Tacoma Intl. to Humberto Delgado, returning Tue, Nov 4, priced at $1,049 found 4 days ago

Sat, Jun 28 - Mon, Jul 7

SEA

Seattle - Tacoma Intl.

LIS

Humberto Delgado

$1,263 Roundtrip, found 5 hours ago

$1,263

Roundtrip

found 5 hours ago

Select Swiss International Air Lines flight, departing Sat, Jun 28 from Seattle - Tacoma Intl. to Humberto Delgado, returning Mon, Jul 7, priced at $1,263 found 5 hours ago

Tue, Oct 28 - Tue, Nov 4

SEA

Seattle - Tacoma Intl.

LIS

Humberto Delgado

$1,437 Roundtrip, found 4 days ago

$1,437

Roundtrip

found 4 days ago

Select Virgin Atlantic flight, departing Tue, Oct 28 from Seattle - Tacoma Intl. to Humberto Delgado, returning Tue, Nov 4, priced at $1,437 found 4 days ago

Tue, Oct 28 - Tue, Nov 4

SEA

Seattle - Tacoma Intl.

LIS

Humberto Delgado

$1,674 Roundtrip, found 4 days ago

$1,674

Roundtrip

found 4 days ago

Select JetBlue Airways flight, departing Tue, Oct 28 from Seattle - Tacoma Intl. to Humberto Delgado, returning Tue, Nov 4, priced at $1,674 found 4 days ago

Sun, Jun 29 - Sat, Jul 5

SEA

Seattle - Tacoma Intl.

LIS

Humberto Delgado

$2,041 Roundtrip, found 5 hours ago

$2,041

Roundtrip

found 5 hours ago

Select Scandinavian Airlines flight, departing Sun, Jun 29 from Seattle - Tacoma Intl. to Humberto Delgado, returning Sat, Jul 5, priced at $2,041 found 5 hours ago

Sun, Jun 29 - Sat, Jul 5

SEA

Seattle - Tacoma Intl.

LIS

Humberto Delgado

$3,871 Roundtrip, found 5 hours ago

$3,871

Roundtrip

found 5 hours ago

Select Finnair flight, departing Sun, Jun 29 from Seattle - Tacoma Intl. to Humberto Delgado, returning Sat, Jul 5, priced at $3,871 found 5 hours ago

Sun, Jun 29 - Sat, Jul 5

SEA

Seattle - Tacoma Intl.

LIS

Humberto Delgado

$4,012 Roundtrip, found 5 hours ago

$4,012

Roundtrip

found 5 hours ago

Select Air France flight, departing Sun, Jun 29 from Seattle - Tacoma Intl. to Humberto Delgado, returning Sat, Jul 5, priced at $4,012 found 5 hours ago