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$355+ Cheap flights from Portugal 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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — BWI
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheap flight deals from Portugal to Maryland

Keep the following information in mind while searching for Portugal to Maryland flight deals. Data was last updated May 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$471
(Cheapflightsfares)

One-way from

$355
(Mytrip)

Popular in

July

Cheapest in

September

Average price

$675
Provider with most accurate pricing for Lisbon Humberto Delgado-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Washington, D.C. (WAS) flights.
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From Portugal to Maryland
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One-way flight from Portugal to Maryland
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Highest demand for flights based on searches. 17% potential increase in price ($137 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find flight deals from Portugal to Maryland

Cheapest flights from Portugal to Maryland
Explore the most affordable flight options available from Portugal to Maryland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 1, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 5/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/88:15 amOPO - IAD
1 stop11h 45mIberia
Tue 10/214:35 pmIAD - OPO
1 stop14h 05mIberia
Deal found 5/1$471
This Iberia deal was found by Cheapflights users on 5/1. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/88:15 amOPO - IAD
1 stop11h 45mMultiple Airlines
Sat 5/2410:45 pmIAD - OPO
1 stop16h 50mMultiple Airlines
Deal found 5/1$472
This Iberia deal was found by Cheapflights users on 5/1. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/106:35 amLIS - IAD
1 stop13h 25mMultiple Airlines
Mon 5/265:40 pmIAD - LIS
1 stop14h 05mMultiple Airlines
Deal found 5/1$473
This British Airways deal was found by Cheapflights users on 5/1. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/107:10 amLIS - IAD
1 stop18h 00mBritish Airways
Mon 5/265:40 pmIAD - LIS
1 stop14h 05mBritish Airways
Deal found 5/1$486
This British Airways deal was found by Cheapflights users on 5/1. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/107:10 amLIS - BWI
1 stop17h 25mBritish Airways
Mon 5/269:20 pmBWI - LIS
1 stop20h 50mBritish Airways
Deal found 5/1$486
This Finnair deal was found by Cheapflights users on 5/1. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/106:35 amLIS - IAD
1 stop13h 25mFinnair
Mon 5/2610:40 pmIAD - LIS
1 stop19h 30mFinnair
Deal found 5/1$489
This American Airlines deal was found by Cheapflights users on 4/30. 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 5/2211:05 amLIS - IAD
2 stops26h 33mAmerican Airlines
Wed 6/48:02 pmIAD - LIS
2 stops32h 03mAmerican Airlines
Deal found 4/30$493
This British Airways deal was found by Cheapflights users on 5/1. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/89:55 amOPO - BWI
1 stop14h 40mBritish Airways
Sat 5/249:20 pmBWI - OPO
1 stop18h 15mBritish Airways
Deal found 5/1$509
This American Airlines deal was found by Cheapflights users on 5/1. 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.
Sat 5/106:35 amLIS - DCA
2 stops18h 24mAmerican Airlines
Mon 5/266:33 amDCA - LIS
1 stop21h 32mAmerican Airlines
Deal found 5/1$523
This Iberia deal was found by Cheapflights users on 5/1. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/88:15 amOPO - DCA
2 stops15h 22mIberia
Tue 10/215:44 pmDCA - OPO
2 stops12h 56mIberia
Deal found 5/1$530
This Delta deal was found by Cheapflights users on 4/30. 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.
Wed 8/275:00 amLIS - IAD
1 stop15h 35mDelta
Sat 9/68:30 pmIAD - LIS
2 stops16h 25mDelta
Deal found 4/30$532
This British Airways deal was found by Cheapflights users on 5/1. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/512:30 pmLIS - DCA
2 stops15h 37mBritish Airways
Mon 6/92:35 pmDCA - LIS
1 stop13h 30mBritish Airways
Deal found 5/1$537

Cheapflights Fare Finder

Customize your flight search to find flights from Portugal 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 2,558,603 searches. Data last updated May 1, 2025.
Use the filters below to find and compare flights from Portugal to Maryland that are best for you.

Fly from

Portugal

Fly to

Maryland

Route

Depart

Return

Price

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Wed 10/8

8:15 am-3:00 pm

1 stop11h 45m

Washington, D.C. Dulles Intl

Tue 10/21

4:35 pm-11:40 am

1 stop14h 05m

$471

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Thu 5/22

6:35 am-3:00 pm

1 stop13h 25m

Washington, D.C. Dulles Intl

Thu 5/29

10:40 pm-6:10 pm

1 stop14h 30m

$473

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Sun 6/15

6:50 pm-3:50 pm

1 stop26h 00m

Washington, D.C. Dulles Intl

Sun 6/22

10:40 pm-5:55 pm

1 stop14h 15m

$486

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Thu 5/22

11:05 am-8:38 am

2 stops26h 33m

Washington, D.C. Dulles Intl

Wed 6/4

8:02 pm-9:05 am

2 stops32h 03m

$493

LisbonBaltimore

LIS - BWI

LISBWI

Lisbon Humberto Delgado

Thu 5/22

11:05 am-7:35 pm

1 stop13h 30m

Baltimore/Washington

Wed 6/4

9:20 pm-5:55 pm

1 stop15h 35m

$522

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 10/8

8:15 am-6:37 pm

2 stops15h 22m

Washington, D.C. Reagan-National

Tue 10/21

5:44 pm-11:40 am

2 stops12h 56m

$530

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Wed 8/27

5:00 am-3:35 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Sat 9/6

8:30 pm-5:55 pm

2 stops16h 25m

$532

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Thu 6/5

12:30 pm-11:07 pm

2 stops15h 37m

Washington, D.C. Reagan-National

Mon 6/9

2:35 pm-9:05 am

1 stop13h 30m

$537

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Thu 6/5

11:40 am-10:45 pm

2 stops16h 05m

Washington, D.C. Reagan-National

Mon 6/9

12:15 pm-8:50 am

2 stops15h 35m

$538

LisbonBaltimore

LIS - BWI

LISBWI

Lisbon Humberto Delgado

Wed 8/27

11:40 am-9:43 pm

2 stops15h 03m

Baltimore/Washington

Sat 9/6

1:00 pm-10:45 am

1 stop16h 45m

$542

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/1

Showing 1-10 of 60 results
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Best time to book a flight from Portugal to Maryland

Have a flexible travel schedule? Discover the best time to fly to Maryland from Portugal 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.

Cheapflights Insights

Everything you need to know about your flight from Portugal to Maryland

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 May 1, 2025.
Read reviews from past customers who have flown Delta, Emirates and KLM from Portugal to Maryland. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,934 reviews

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Emirates
8.0
Very good
3,217 reviews
Delta
8.0
Very good
7,934 reviews

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
LOT
7.6
Good
1,069 reviews
Delta
8.0
Very good
7,934 reviews

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.6
Good
781 reviews
Delta
8.0
Very good
7,934 reviews

Crew

8.5

Overall

8.0

Food

7.3

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

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 Portugal to Maryland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    The cheapest airline one-way is TAP AIR PORTUGAL, with whom users have recently found tickets for as low as $377. However, be on the lookout for offers from Aer Lingus and PLAY, as they are both options that can get you from Portugal to Maryland for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portugal 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 Portugal to Maryland?

    Currently, August is the cheapest month in which you can book a flight from Portugal to Maryland (average of $241). Flying from Portugal to Maryland in March is currently the most expensive (average of $290). 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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Alternative routes for Portugal to Maryland

See prices for flight routes from nearby airports that may be better suited for you.
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