To save up to 9% on this flight, we recommend booking at least 45 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Porto to Maryland from $539 1-2 weeks out and tickets from $768 for flights departing within the next 72 hours.
Due to multiple factors, expect to potentially pay more when booking in July. For low rates, April can be a great choice for travel to Maryland. Flights to Maryland from Porto in April are about $668 on average during April, but can be found for as low as $470.
When flying from Porto to Maryland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Fly from
Fly to
Budget
$499 - $677
Route
Depart
Return
Price
PortoWashington, D.C. Dulles Intl
OPO - IAD
OPOIAD
Porto
Fri 9/20
1 stop11h 30m
Washington, D.C. Dulles Intl
Sun 10/6
1 stop10h 50m
PortoWashington, D.C. Reagan-National
OPO - DCA
OPODCA
Porto
Tue 5/28
1 stop11h 35m
Washington, D.C. Reagan-National
Fri 1/17
2 stops15h 35m
PortoWashington, D.C. Reagan-National
OPO - DCA
OPODCA
Porto
Wed 5/29
2 stops15h 59m
Washington, D.C. Reagan-National
Fri 1/17
2 stops17h 25m
PortoWashington, D.C. Dulles Intl
OPO - IAD
OPOIAD
Porto
Fri 9/20
1 stop12h 35m
Washington, D.C. Dulles Intl
Sun 10/6
2 stops38h 00m
PortoWashington, D.C. Dulles Intl
OPO - IAD
OPOIAD
Porto
Thu 6/13
1 stop16h 00m
Washington, D.C. Dulles Intl
Thu 6/20
1 stop10h 00m
PortoBaltimore/Washington
OPO - BWI
OPOBWI
Porto
Fri 9/20
2 stops17h 18m
Baltimore/Washington
Sun 10/6
2 stops22h 09m
PortoWashington, D.C. Reagan-National
OPO - DCA
OPODCA
Porto
Wed 5/29
2 stops15h 59m
Washington, D.C. Reagan-National
Mon 1/13
2 stops18h 10m
PortoWashington, D.C. Reagan-National
OPO - DCA
OPODCA
Porto
Sun 5/26
2 stops15h 54m
Washington, D.C. Reagan-National
Sun 1/12
2 stops12h 52m
PortoWashington, D.C. Dulles Intl
OPO - IAD
OPOIAD
Porto
Sun 5/26
1 stop14h 55m
Washington, D.C. Dulles Intl
Wed 1/15
1 stop11h 50m
No data available for this route at this time. Please check back soon.
Boarding
Overall
Crew
Entertainment
Food
Comfort
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Boarding
Overall
Crew
Entertainment
Food
Comfort
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Boarding
Overall
Crew
Entertainment
Food
Comfort
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Boarding
Overall
Crew
Entertainment
Food
Comfort
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Boarding
Overall
Crew
Entertainment
Food
Comfort
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Boarding
Overall
Crew
Entertainment
Food
Comfort
Reviews
When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Deals for Porto to Maryland flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Cheapflights simply makes it quick and affordable to book flights from Porto to Maryland by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.
Yes, we can. To see specific flights from Porto to Maryland with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!