Flights from Washington to Santa Maria Maior

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.

Thu, Nov 13 - Wed, Dec 3

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$529 Roundtrip, found 6 days ago

$529

Roundtrip

found 6 days ago

Select Scandinavian Airlines flight, departing Thu, Nov 13 from Washington Dulles Intl. to Humberto Delgado, returning Wed, Dec 3, priced at $529 found 6 days ago

Sun, Nov 16 - Fri, Dec 5

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$682 Roundtrip, found 6 days ago

$682

Roundtrip

found 6 days ago

Select Turkish Airlines flight, departing Sun, Nov 16 from Washington Dulles Intl. to Humberto Delgado, returning Fri, Dec 5, priced at $682 found 6 days ago

Wed, Oct 1 - Thu, Oct 30

BWI

Baltimore Washington Intl. Thurgood Marshall

LIS

Humberto Delgado

$722 Roundtrip, found 17 hours ago

$722

Roundtrip

found 17 hours ago

Select Icelandair flight, departing Wed, Oct 1 from Baltimore Washington Intl. Thurgood Marshall to Humberto Delgado, returning Thu, Oct 30, priced at $722 found 17 hours ago

Fri, Nov 14 - Wed, Dec 3

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$734 Roundtrip, found 3 days ago

$734

Roundtrip

found 3 days ago

Select United flight, departing Fri, Nov 14 from Washington Dulles Intl. to Humberto Delgado, returning Wed, Dec 3, priced at $734 found 3 days ago

Wed, Apr 22 - Sun, May 10

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$740 Roundtrip, found 5 hours ago

$740

Roundtrip

found 5 hours ago

Select TAP Portugal flight, departing Wed, Apr 22 from Washington Dulles Intl. to Humberto Delgado, returning Sun, May 10, priced at $740 found 5 hours ago

Fri, Nov 14 - Wed, Dec 3

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$754 Roundtrip, found 3 days ago

$754

Roundtrip

found 3 days ago

Select Air Canada flight, departing Fri, Nov 14 from Washington Dulles Intl. to Humberto Delgado, returning Wed, Dec 3, priced at $754 found 3 days ago

Wed, Apr 22 - Sun, May 10

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$761 Roundtrip, found 5 hours ago

$761

Roundtrip

found 5 hours ago

Select Royal Air Maroc flight, departing Wed, Apr 22 from Washington Dulles Intl. to Humberto Delgado, returning Sun, May 10, priced at $761 found 5 hours ago

Fri, Nov 14 - Wed, Dec 3

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$761 Roundtrip, found 3 days ago

$761

Roundtrip

found 3 days ago

Select Lufthansa flight, departing Fri, Nov 14 from Washington Dulles Intl. to Humberto Delgado, returning Wed, Dec 3, priced at $761 found 3 days ago

Fri, Nov 14 - Wed, Dec 3

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$762 Roundtrip, found 3 days ago

$762

Roundtrip

found 3 days ago

Select Swiss International Air Lines flight, departing Fri, Nov 14 from Washington Dulles Intl. to Humberto Delgado, returning Wed, Dec 3, priced at $762 found 3 days ago

Fri, Nov 14 - Wed, Dec 3

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$771 Roundtrip, found 3 days ago

$771

Roundtrip

found 3 days ago

Select American Airlines flight, departing Fri, Nov 14 from Washington Dulles Intl. to Humberto Delgado, returning Wed, Dec 3, priced at $771 found 3 days ago

Fri, Nov 14 - Wed, Dec 3

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$773 Roundtrip, found 3 days ago

$773

Roundtrip

found 3 days ago

Select British Airways flight, departing Fri, Nov 14 from Washington Dulles Intl. to Humberto Delgado, returning Wed, Dec 3, priced at $773 found 3 days ago

Mon, Sep 22 - Thu, Oct 2

DCA

Ronald Reagan Washington National

LIS

Humberto Delgado

$793 Roundtrip, found 3 days ago

$793

Roundtrip

found 3 days ago

Select British Airways flight, departing Mon, Sep 22 from Ronald Reagan Washington National to Humberto Delgado, returning Thu, Oct 2, priced at $793 found 3 days ago

Fri, Nov 14 - Wed, Dec 3

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$860 Roundtrip, found 3 days ago

$860

Roundtrip

found 3 days ago

Select Delta flight, departing Fri, Nov 14 from Washington Dulles Intl. to Humberto Delgado, returning Wed, Dec 3, priced at $860 found 3 days ago

Fri, Nov 14 - Wed, Dec 3

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$860 Roundtrip, found 3 days ago

$860

Roundtrip

found 3 days ago

Select Virgin Atlantic flight, departing Fri, Nov 14 from Washington Dulles Intl. to Humberto Delgado, returning Wed, Dec 3, priced at $860 found 3 days ago

Fri, Nov 14 - Wed, Dec 3

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$963 Roundtrip, found 3 days ago

$963

Roundtrip

found 3 days ago

Select KLM flight, departing Fri, Nov 14 from Washington Dulles Intl. to Humberto Delgado, returning Wed, Dec 3, priced at $963 found 3 days ago

Fri, Nov 14 - Wed, Dec 3

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$973 Roundtrip, found 3 days ago

$973

Roundtrip

found 3 days ago

Select Austrian Airlines flight, departing Fri, Nov 14 from Washington Dulles Intl. to Humberto Delgado, returning Wed, Dec 3, priced at $973 found 3 days ago

Fri, Nov 14 - Wed, Dec 3

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$990 Roundtrip, found 3 days ago

$990

Roundtrip

found 3 days ago

Select Brussels Airlines flight, departing Fri, Nov 14 from Washington Dulles Intl. to Humberto Delgado, returning Wed, Dec 3, priced at $990 found 3 days ago

Fri, Nov 14 - Wed, Dec 3

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$991 Roundtrip, found 3 days ago

$991

Roundtrip

found 3 days ago

Select Iberia flight, departing Fri, Nov 14 from Washington Dulles Intl. to Humberto Delgado, returning Wed, Dec 3, priced at $991 found 3 days ago

Fri, Nov 14 - Wed, Dec 3

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$1,003 Roundtrip, found 3 days ago

$1,003

Roundtrip

found 3 days ago

Select Air France flight, departing Fri, Nov 14 from Washington Dulles Intl. to Humberto Delgado, returning Wed, Dec 3, priced at $1,003 found 3 days ago

Fri, Nov 14 - Wed, Dec 3

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$1,021 Roundtrip, found 3 days ago

$1,021

Roundtrip

found 3 days ago

Select Finnair flight, departing Fri, Nov 14 from Washington Dulles Intl. to Humberto Delgado, returning Wed, Dec 3, priced at $1,021 found 3 days ago