Cheap Flights To Porto de Mos 2026

Porto de Mos Flights as Low as $684

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.

Sun, Apr 11 - Mon, Apr 26

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$684 Roundtrip, found 21 hours ago

$684

Roundtrip

found 21 hours ago

Select Royal Air Maroc flight, departing Sun, Apr 11 from Washington Dulles Intl. to Humberto Delgado, returning Mon, Apr 26, priced at $684 found 21 hours ago

Wed, Apr 14 - Wed, Apr 28

ATL

Hartsfield-Jackson Atlanta Intl.

LIS

Humberto Delgado

$723 Roundtrip, found 21 hours ago

$723

Roundtrip

found 21 hours ago

Select Air Canada flight, departing Wed, Apr 14 from Hartsfield-Jackson Atlanta Intl. to Humberto Delgado, returning Wed, Apr 28, priced at $723 found 21 hours ago

Sun, Apr 11 - Thu, Apr 15

IAH

George Bush Intercontinental

LIS

Humberto Delgado

$739 Roundtrip, found 1 day ago

$739

Roundtrip

found 1 day ago

Select Air Canada flight, departing Sun, Apr 11 from George Bush Intercontinental to Humberto Delgado, returning Thu, Apr 15, priced at $739 found 1 day ago

Wed, Apr 14 - Wed, Apr 28

ATL

Hartsfield-Jackson Atlanta Intl.

LIS

Humberto Delgado

$740 Roundtrip, found 21 hours ago

$740

Roundtrip

found 21 hours ago

Select United flight, departing Wed, Apr 14 from Hartsfield-Jackson Atlanta Intl. to Humberto Delgado, returning Wed, Apr 28, priced at $740 found 21 hours ago

Wed, Apr 14 - Wed, Apr 28

ATL

Hartsfield-Jackson Atlanta Intl.

LIS

Humberto Delgado

$755 Roundtrip, found 21 hours ago

$755

Roundtrip

found 21 hours ago

Select Air Canada flight, departing Wed, Apr 14 from Hartsfield-Jackson Atlanta Intl. to Humberto Delgado, returning Wed, Apr 28, priced at $755 found 21 hours ago

Wed, Apr 14 - Wed, Apr 28

ATL

Hartsfield-Jackson Atlanta Intl.

LIS

Humberto Delgado

$757 Roundtrip, found 21 hours ago

$757

Roundtrip

found 21 hours ago

Select British Airways flight, departing Wed, Apr 14 from Hartsfield-Jackson Atlanta Intl. to Humberto Delgado, returning Wed, Apr 28, priced at $757 found 21 hours ago

Wed, Apr 14 - Wed, Apr 28

ATL

Hartsfield-Jackson Atlanta Intl.

LIS

Humberto Delgado

$757 Roundtrip, found 21 hours ago

$757

Roundtrip

found 21 hours ago

Select American Airlines flight, departing Wed, Apr 14 from Hartsfield-Jackson Atlanta Intl. to Humberto Delgado, returning Wed, Apr 28, priced at $757 found 21 hours ago

Wed, Dec 30 - Mon, Jan 18

IAH

George Bush Intercontinental

LIS

Humberto Delgado

$763 Roundtrip, found 2 days ago

$763

Roundtrip

found 2 days ago

Select Delta flight, departing Wed, Dec 30 from George Bush Intercontinental to Humberto Delgado, returning Mon, Jan 18, priced at $763 found 2 days ago

Sun, Apr 11 - Wed, Apr 28

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$812 Roundtrip, found 21 hours ago

$812

Roundtrip

found 21 hours ago

Select Turkish Airlines flight, departing Sun, Apr 11 from Washington Dulles Intl. to Humberto Delgado, returning Wed, Apr 28, priced at $812 found 21 hours ago

Wed, Apr 14 - Wed, Apr 28

ATL

Hartsfield-Jackson Atlanta Intl.

LIS

Humberto Delgado

$821 Roundtrip, found 21 hours ago

$821

Roundtrip

found 21 hours ago

Select Lufthansa flight, departing Wed, Apr 14 from Hartsfield-Jackson Atlanta Intl. to Humberto Delgado, returning Wed, Apr 28, priced at $821 found 21 hours ago

Wed, Apr 14 - Sun, Apr 18

IAH

George Bush Intercontinental

LIS

Humberto Delgado

$851 Roundtrip, found 1 day ago

$851

Roundtrip

found 1 day ago

Select KLM flight, departing Wed, Apr 14 from George Bush Intercontinental to Humberto Delgado, returning Sun, Apr 18, priced at $851 found 1 day ago

Wed, Apr 14 - Wed, Apr 28

ATL

Hartsfield-Jackson Atlanta Intl.

LIS

Humberto Delgado

$869 Roundtrip, found 21 hours ago

$869

Roundtrip

found 21 hours ago

Select Brussels Airlines flight, departing Wed, Apr 14 from Hartsfield-Jackson Atlanta Intl. to Humberto Delgado, returning Wed, Apr 28, priced at $869 found 21 hours ago

Tue, Dec 15 - Fri, Dec 25

IAH

George Bush Intercontinental

LIS

Humberto Delgado

$938 Roundtrip, found 2 days ago

$938

Roundtrip

found 2 days ago

Select Air France flight, departing Tue, Dec 15 from George Bush Intercontinental to Humberto Delgado, returning Fri, Dec 25, priced at $938 found 2 days ago

Wed, Apr 14 - Wed, Apr 28

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$1,025 Roundtrip, found 21 hours ago

$1,025

Roundtrip

found 21 hours ago

Select TAP Portugal flight, departing Wed, Apr 14 from Washington Dulles Intl. to Humberto Delgado, returning Wed, Apr 28, priced at $1,025 found 21 hours ago

Wed, Apr 14 - Wed, Apr 28

IAD

Washington Dulles Intl.

LIS

Humberto Delgado

$1,068 Roundtrip, found 21 hours ago

$1,068

Roundtrip

found 21 hours ago

Select Swiss International Air Lines flight, departing Wed, Apr 14 from Washington Dulles Intl. to Humberto Delgado, returning Wed, Apr 28, priced at $1,068 found 21 hours ago

Wed, Apr 14 - Sun, Apr 18

IAH

George Bush Intercontinental

LIS

Humberto Delgado

$1,100 Roundtrip, found 1 day ago

$1,100

Roundtrip

found 1 day ago

Select Aer Lingus flight, departing Wed, Apr 14 from George Bush Intercontinental to Humberto Delgado, returning Sun, Apr 18, priced at $1,100 found 1 day ago