Baltimore to Douro Valley Flights (WAS-OPO) from $292

Selected fares from Baltimore to Douro Valley

The cheapest prices found with in the last 7 days for return flights were $489 and $292 for one-way flights to Douro Valley for the period specified. Prices and availability are subject to change. Additional terms apply.

Fri, Aug 22 - Thu, Sep 4

BWI

Baltimore Washington Intl. Thurgood Marshall

OPO

Dr. Francisco de Sa Carneiro

$489 Roundtrip, found 4 hours ago

$489

Roundtrip

found 4 hours ago

Select Fly Play flight, departing Fri, Aug 22 from Baltimore Washington Intl. Thurgood Marshall to Dr. Francisco de Sa Carneiro, returning Thu, Sep 4, priced at $489 found 4 hours ago

Mon, Nov 10 - Tue, Nov 18

BWI

Baltimore Washington Intl. Thurgood Marshall

OPO

Dr. Francisco de Sa Carneiro

$491 Roundtrip, found 22 hours ago

$491

Roundtrip

found 22 hours ago

Select United flight, departing Mon, Nov 10 from Baltimore Washington Intl. Thurgood Marshall to Dr. Francisco de Sa Carneiro, returning Tue, Nov 18, priced at $491 found 22 hours ago

Mon, Nov 10 - Tue, Nov 18

DCA

Ronald Reagan Washington National

OPO

Dr. Francisco de Sa Carneiro

$494 Roundtrip, found 22 hours ago

$494

Roundtrip

found 22 hours ago

Select United flight, departing Mon, Nov 10 from Ronald Reagan Washington National to Dr. Francisco de Sa Carneiro, returning Tue, Nov 18, priced at $494 found 22 hours ago