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$300+ Cheap flights from Porto (OPO) to Maryland

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — BWI
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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Cheap flight deals from Porto to Maryland

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to Maryland (USMD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Find flight deals from Porto to Maryland

Cheapest flights from Porto to Maryland
Explore the most affordable flight options available from Porto to Maryland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Gotogate deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/166:00 amOPO - IAD
1 stop19h 20mLufthansa
Mon 12/305:50 pmIAD - OPO
1 stop12h 45mLufthansa
Deal found 11/20$517
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/166:00 amOPO - IAD
2 stops30h 29mUnited Airlines
Mon 12/305:50 pmIAD - OPO
1 stop12h 45mUnited Airlines
Deal found 11/20$526
This Expedia deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/166:15 amOPO - IAD
2 stops14h 35mMultiple Airlines
Mon 12/306:25 pmIAD - OPO
2 stops35h 50mMultiple Airlines
Deal found 11/20$547
This Delta deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/166:20 amOPO - DCA
2 stops21h 12mDelta
Mon 12/302:00 pmDCA - OPO
2 stops18h 00mDelta
Deal found 11/20$551
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/166:00 amOPO - BWI
2 stops43h 53mUnited Airlines
Mon 12/305:16 pmBWI - OPO
2 stops61h 24mUnited Airlines
Deal found 11/20$552
This KLM deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2210:55 amOPO - IAD
1 stop33h 50mKLM
Tue 12/316:30 pmIAD - OPO
1 stop11h 20mKLM
Deal found 11/20$595
This Air France deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/206:00 amOPO - DCA
2 stops16h 37mKLM
Sun 11/247:35 pmDCA - OPO
2 stops14h 50mKLM
Deal found 11/19$664
This oojo deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/214:25 pmOPO - IAD
1 stop24h 50mTurkish Airlines
Sun 1/59:25 pmIAD - OPO
1 stop37h 00mTurkish Airlines
Deal found 11/19$711
This SWISS deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/57:30 pmOPO - PHL
2 stops30h 55mSWISS
Mon 12/91:15 pmPHL - OPO
2 stops24h 20mSWISS
Deal found 11/19$717
This Expedia deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2111:55 amOPO - IAD
1 stop33h 40mSWISS
Mon 12/306:25 pmIAD - OPO
2 stops35h 50mSWISS
Deal found 11/20$735
This American Airlines deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/58:20 amOPO - PHL
1 stop12h 10mAmerican Airlines
Mon 12/96:55 pmPHL - OPO
1 stop16h 05mAmerican Airlines
Deal found 11/19$757
This OneTravel deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/219:55 pmOPO - IAD
2 stops26h 50mIberia
Mon 12/306:00 pmIAD - OPO
2 stops21h 00mIberia
Deal found 11/20$771

Find flights from Porto to Maryland within your budget

Customize your flight search to find flights from Porto to Maryland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.

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Route

Depart

Return

Price

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Mon 1/13

12:25 pm-10:41 pm

2 stops15h 16m

Washington, D.C. Reagan-National

Sun 1/26

10:13 pm-11:45 am

2 stops32h 32m

$451

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 1/13

12:25 pm-7:45 pm

2 stops36h 20m

Washington, D.C. Dulles Intl

Sun 1/26

6:00 pm-8:00 pm

2 stops21h 00m

$465

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 1/13

5:30 pm-3:35 pm

1 stop27h 05m

Washington, D.C. Dulles Intl

Sun 1/26

6:00 pm-8:00 pm

2 stops21h 00m

$511

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 12/16

6:00 am-8:20 pm

1 stop19h 20m

Washington, D.C. Dulles Intl

Mon 12/30

5:50 pm-11:35 am

1 stop12h 45m

$517

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 12/16

6:00 am-7:29 am

2 stops30h 29m

Washington, D.C. Dulles Intl

Mon 12/30

5:50 pm-11:35 am

1 stop12h 45m

$526

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 1/13

12:00 pm-4:25 pm

1 stop33h 25m

Washington, D.C. Dulles Intl

Mon 5/5

5:35 pm-7:55 am

1 stop33h 20m

$543

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Mon 12/16

6:20 am-10:32 pm

2 stops21h 12m

Washington, D.C. Reagan-National

Mon 12/30

2:00 pm-1:00 pm

2 stops18h 00m

$551

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Mon 12/16

6:00 am-8:53 pm

2 stops43h 53m

Baltimore/Washington

Mon 12/30

5:16 pm-11:40 am

2 stops61h 24m

$552

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Tue 1/14

11:15 am-3:45 pm

1 stop33h 30m

Washington, D.C. Dulles Intl

Thu 5/1

9:20 pm-3:30 pm

1 stop13h 10m

$552

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Sun 12/22

10:55 am-3:45 pm

1 stop33h 50m

Washington, D.C. Dulles Intl

Tue 12/31

6:30 pm-10:50 am

1 stop11h 20m

$595

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 51 results
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Best time to book a flight from Porto to Maryland

Have a flexible travel schedule? Discover the best time to fly to Maryland from Porto with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Porto to Maryland

Get recent, data-driven insights about flights from Porto to Maryland including ideal travel times, pricing trends, and more.

Rainfall in Maryland by month

Plan your trip to Maryland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Maryland ranges from 2.9 - 4.1 inches per month. July is typically the wettest month, when rainfall can reach 4.1 in. February is typically the driest time to visit Maryland when rainfall is around 2.9 in.

Temperature in Maryland by month

Plan your trip to Maryland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Maryland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Maryland

Get insights into the airlines that provide service to Maryland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Maryland. Reviews last updated November 20, 2024.
Read reviews from past customers who have flown SWISS, United Airlines and American Airlines from Porto to Maryland. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,756 reviews

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,756 reviews
Delta
8.0
Very good
8,756 reviews

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,350 reviews
Delta
8.0
Very good
8,756 reviews

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS
7.6
Good
1,637 reviews
Delta
8.0
Very good
8,756 reviews

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France
7.4
Good
1,523 reviews
Delta
8.0
Very good
8,756 reviews

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
9,171 reviews
Delta
8.0
Very good
8,756 reviews

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Porto to Maryland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Porto to Maryland?

    Located just 6.8 mi from the city center, Porto (OPO) is the airport most travelers will use when flying to Maryland from Porto.

  • What are the cheapest airlines to fly from Porto to Maryland one-way?

    $477 is the cheapest one-way deal found within the past few days, from Iberia. You may also be able to find cheap deals on British Airways and Royal Air Maroc, with prices starting from $483 and $518, respectively.

  • What are the most popular routes from Porto to Maryland?

    The most popular flight routes from Porto to Maryland are Porto - Washington, D.C. Dulles Intl, Porto - Baltimore/Washington and Porto - Washington, D.C. Reagan-National.

  • Can I find deals for flights from Porto to Maryland that include hotel bookings?

    Yes. In addition to deals on Porto to Maryland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Porto to Maryland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to Maryland.

  • Can I find deals for business class flights from Porto to Maryland?

    Yes. Cheapflights offers flight deals from Porto to Maryland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Porto to Maryland?

    Currently, August is the cheapest month in which you can book a flight from Porto to Maryland (average of $241). Flying from Porto to Maryland in January is currently the most expensive (average of $273). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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