Cheap flights from Baltimore to Tras-os-Montes

View AU$557 flight on Mon, 21 Jul. 2025Opens in a new window

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Cheap Flights from Baltimore (WAS) to Tras-os-Montes (OPO)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, 20 Aug. - Wed, 27 Aug.
DCA
Washington
OPO
Porto
AU$1,303 Return, found 6 days ago
AU$1,303
Return
found 6 days ago
Select United flight, departing Wed, 20 Aug. from Washington to Porto, returning Wed, 27 Aug., priced at AU$1,303 found 6 days ago
United
Wed, 20 Aug. - Wed, 27 Aug.
DCA
Washington
OPO
Porto
AU$1,326 Return, found 6 days ago
AU$1,326
Return
found 6 days ago
Select United flight, departing Wed, 20 Aug. from Washington to Porto, returning Wed, 27 Aug., priced at AU$1,326 found 6 days ago
Air Canada
Wed, 20 Aug. - Wed, 27 Aug.
DCA
Washington
OPO
Porto
AU$1,336 Return, found 6 days ago
AU$1,336
Return
found 6 days ago
Select Air Canada flight, departing Wed, 20 Aug. from Washington to Porto, returning Wed, 27 Aug., priced at AU$1,336 found 6 days ago
United
Wed, 20 Aug. - Wed, 27 Aug.
DCA
Washington
OPO
Porto
AU$1,399 Return, found 6 days ago
AU$1,399
Return
found 6 days ago
Select United flight, departing Wed, 20 Aug. from Washington to Porto, returning Wed, 27 Aug., priced at AU$1,399 found 6 days ago
Air Canada
Wed, 20 Aug. - Wed, 27 Aug.
DCA
Washington
OPO
Porto
AU$1,409 Return, found 6 days ago
AU$1,409
Return
found 6 days ago
Select Air Canada flight, departing Wed, 20 Aug. from Washington to Porto, returning Wed, 27 Aug., priced at AU$1,409 found 6 days ago
United
Wed, 20 Aug. - Wed, 27 Aug.
DCA
Washington
OPO
Porto
AU$1,454 Return, found 6 days ago
AU$1,454
Return
found 6 days ago
Select United flight, departing Wed, 20 Aug. from Washington to Porto, returning Wed, 27 Aug., priced at AU$1,454 found 6 days ago
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