Flights from Washington to Lisbon District

Cheapest flights from Washington

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.

Tue, Sep 23 - Fri, Oct 3

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$581 Roundtrip, found 16 hours ago

$581

Roundtrip

found 16 hours ago

Select British Airways flight, departing Tue, Sep 23 from Washington Dulles Intl. to Humberto Delgado, returning Fri, Oct 3, priced at $581 found 16 hours ago

Sun, Sep 28 - Thu, Oct 2

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$621 Roundtrip, found 16 hours ago

$621

Roundtrip

found 16 hours ago

Select Royal Air Maroc flight, departing Sun, Sep 28 from Washington Dulles Intl. to Humberto Delgado, returning Thu, Oct 2, priced at $621 found 16 hours ago

Thu, Sep 25 - Sun, Oct 5

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$672 Roundtrip, found 16 hours ago

$672

Roundtrip

found 16 hours ago

Select American Airlines flight, departing Thu, Sep 25 from Washington Dulles Intl. to Humberto Delgado, returning Sun, Oct 5, priced at $672 found 16 hours ago

Thu, Sep 25 - Sat, Oct 4

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$689 Roundtrip, found 16 hours ago

$689

Roundtrip

found 16 hours ago

Select TAP Portugal flight, departing Thu, Sep 25 from Washington Dulles Intl. to Humberto Delgado, returning Sat, Oct 4, priced at $689 found 16 hours ago

Sat, Sep 27 - Thu, Oct 2

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$700 Roundtrip, found 16 hours ago

$700

Roundtrip

found 16 hours ago

Select Turkish Airlines flight, departing Sat, Sep 27 from Washington Dulles Intl. to Humberto Delgado, returning Thu, Oct 2, priced at $700 found 16 hours ago

Thu, Sep 25 - Sun, Oct 5

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$862 Roundtrip, found 16 hours ago

$862

Roundtrip

found 16 hours ago

Select United flight, departing Thu, Sep 25 from Washington Dulles Intl. to Humberto Delgado, returning Sun, Oct 5, priced at $862 found 16 hours ago

Thu, Sep 25 - Sun, Oct 5

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$887 Roundtrip, found 16 hours ago

$887

Roundtrip

found 16 hours ago

Select Lufthansa flight, departing Thu, Sep 25 from Washington Dulles Intl. to Humberto Delgado, returning Sun, Oct 5, priced at $887 found 16 hours ago

Thu, Sep 25 - Sun, Oct 5

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$889 Roundtrip, found 16 hours ago

$889

Roundtrip

found 16 hours ago

Select Swiss International Air Lines flight, departing Thu, Sep 25 from Washington Dulles Intl. to Humberto Delgado, returning Sun, Oct 5, priced at $889 found 16 hours ago

Thu, Sep 25 - Sun, Oct 5

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$909 Roundtrip, found 16 hours ago

$909

Roundtrip

found 16 hours ago

Select Iberia flight, departing Thu, Sep 25 from Washington Dulles Intl. to Humberto Delgado, returning Sun, Oct 5, priced at $909 found 16 hours ago

Thu, Sep 25 - Sun, Oct 5

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$919 Roundtrip, found 16 hours ago

$919

Roundtrip

found 16 hours ago

Select Finnair flight, departing Thu, Sep 25 from Washington Dulles Intl. to Humberto Delgado, returning Sun, Oct 5, priced at $919 found 16 hours ago

Thu, Sep 25 - Sun, Oct 5

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$1,000 Roundtrip, found 16 hours ago

$1,000

Roundtrip

found 16 hours ago

Select KLM flight, departing Thu, Sep 25 from Washington Dulles Intl. to Humberto Delgado, returning Sun, Oct 5, priced at $1,000 found 16 hours ago

Thu, Sep 25 - Sun, Oct 5

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$1,097 Roundtrip, found 16 hours ago

$1,097

Roundtrip

found 16 hours ago

Select Scandinavian Airlines flight, departing Thu, Sep 25 from Washington Dulles Intl. to Humberto Delgado, returning Sun, Oct 5, priced at $1,097 found 16 hours ago

Thu, Sep 25 - Sun, Oct 5

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$1,147 Roundtrip, found 16 hours ago

$1,147

Roundtrip

found 16 hours ago

Select JetBlue Airways flight, departing Thu, Sep 25 from Washington Dulles Intl. to Humberto Delgado, returning Sun, Oct 5, priced at $1,147 found 16 hours ago

Thu, Sep 25 - Sun, Oct 5

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$1,193 Roundtrip, found 16 hours ago

$1,193

Roundtrip

found 16 hours ago

Select Aer Lingus flight, departing Thu, Sep 25 from Washington Dulles Intl. to Humberto Delgado, returning Sun, Oct 5, priced at $1,193 found 16 hours ago

Thu, Sep 25 - Sun, Oct 5

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$1,210 Roundtrip, found 16 hours ago

$1,210

Roundtrip

found 16 hours ago

Select Air Canada flight, departing Thu, Sep 25 from Washington Dulles Intl. to Humberto Delgado, returning Sun, Oct 5, priced at $1,210 found 16 hours ago

Thu, Sep 25 - Sun, Oct 5

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$1,463 Roundtrip, found 16 hours ago

$1,463

Roundtrip

found 16 hours ago

Select Delta flight, departing Thu, Sep 25 from Washington Dulles Intl. to Humberto Delgado, returning Sun, Oct 5, priced at $1,463 found 16 hours ago

Thu, Jun 26 - Mon, Jul 7

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$1,572 Roundtrip, found 2 days ago

$1,572

Roundtrip

found 2 days ago

Select Brussels Airlines flight, departing Thu, Jun 26 from Washington Dulles Intl. to Humberto Delgado, returning Mon, Jul 7, priced at $1,572 found 2 days ago

Thu, Sep 25 - Sun, Oct 5

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$1,676 Roundtrip, found 16 hours ago

$1,676

Roundtrip

found 16 hours ago

Select Air France flight, departing Thu, Sep 25 from Washington Dulles Intl. to Humberto Delgado, returning Sun, Oct 5, priced at $1,676 found 16 hours ago

Wed, Jun 25 - Sun, Jul 6

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$1,738 Roundtrip, found 2 days ago

$1,738

Roundtrip

found 2 days ago

Select Icelandair flight, departing Wed, Jun 25 from Washington Dulles Intl. to Humberto Delgado, returning Sun, Jul 6, priced at $1,738 found 2 days ago

Mon, Sep 22 - Fri, Sep 26

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$2,193 Roundtrip, found 2 days ago

$2,193

Roundtrip

found 2 days ago

Select Virgin Atlantic flight, departing Mon, Sep 22 from Washington Dulles Intl. to Humberto Delgado, returning Fri, Sep 26, priced at $2,193 found 2 days ago