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$301+ 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — BWI
Apr 6 — Apr 131
Sun 4/6
Sun 4/13
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 April 1, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$438
(SWISS)

One-way from

$301
(Mytrip)

Popular in

July

Cheapest in

September

Average price

$678
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. 15% potential increase in price ($126 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 1, 2025.

This SWISS deal was found by Cheapflights users on 3/30. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/295:55 amLIS - IAD
1 stop15h 20mSWISS
Tue 5/65:20 pmIAD - LIS
1 stop15h 25mSWISS
Deal found 3/30$438
This Mytrip deal was found by Cheapflights users on 3/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/19:10 pmOPO - BWI
1 stop25h 30mPLAY
Wed 5/146:50 pmBWI - OPO
1 stop20h 20mPLAY
Deal found 3/31$446
This Finnair deal was found by Cheapflights users on 3/31. 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.
Fri 5/96:35 amLIS - IAD
1 stop13h 25mFinnair
Mon 5/1910:40 pmIAD - LIS
1 stop19h 30mFinnair
Deal found 3/31$492
This American Airlines deal was found by Cheapflights users on 3/31. 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.
Wed 4/166:35 amLIS - IAD
1 stop13h 25mAmerican Airlines
Sun 4/2010:40 pmIAD - LIS
1 stop14h 15mAmerican Airlines
Deal found 3/31$503
This Iberia deal was found by Cheapflights users on 3/31. 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 5/16:35 amLIS - IAD
1 stop13h 25mMultiple Airlines
Sat 5/1010:45 pmIAD - LIS
1 stop14h 20mMultiple Airlines
Deal found 3/31$504
This Delta deal was found by Cheapflights users on 3/31. 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.
Sat 4/125:00 amLIS - IAD
1 stop15h 35mDelta
Mon 4/286:30 pmIAD - LIS
1 stop11h 45mDelta
Deal found 3/31$511
This British Airways deal was found by Cheapflights users on 3/31. 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 5/228:35 pmOPO - IAD
1 stop23h 25mMultiple Airlines
Thu 6/510:40 pmIAD - OPO
1 stop16h 45mMultiple Airlines
Deal found 3/31$513
This Booking.com deal was found by Cheapflights users on 3/31. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/257:20 amLIS - IAD
1 stop13h 30mBritish Airways
Sun 5/1810:40 pmIAD - LIS
1 stop14h 15mBritish Airways
Deal found 3/31$514
This American Airlines deal was found by Cheapflights users on 3/31. 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 5/18:15 amOPO - IAD
1 stop11h 45mAmerican Airlines
Wed 5/74:35 pmIAD - OPO
1 stop14h 05mAmerican Airlines
Deal found 3/31$517
This Delta deal was found by Cheapflights users on 3/31. 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.
Thu 5/225:00 amLIS - DCA
2 stops18h 07mDelta
Sat 6/72:59 pmDCA - LIS
2 stops15h 16mDelta
Deal found 3/31$517
This KLM deal was found by Cheapflights users on 3/31. 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.
Thu 5/225:00 amLIS - DCA
2 stops16h 59mMultiple Airlines
Sat 6/711:00 amDCA - LIS
1 stop16h 00mMultiple Airlines
Deal found 3/31$521
This Expedia deal was found by Cheapflights users on 3/31. 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 4/126:50 pmLIS - IAD
1 stop29h 25mAir France
Mon 4/286:30 pmIAD - LIS
1 stop11h 45mAir France
Deal found 3/31$526

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 April 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

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Tue 4/29

5:55 am-4:15 pm

1 stop15h 20m

Washington, D.C. Dulles Intl

Tue 5/6

5:20 pm-1:45 pm

1 stop15h 25m

$438

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Thu 5/1

9:10 pm-5:40 pm

1 stop25h 30m

Baltimore/Washington

Wed 5/14

6:50 pm-8:10 pm

1 stop20h 20m

$446

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Fri 5/9

6:35 am-3:00 pm

1 stop13h 25m

Washington, D.C. Dulles Intl

Mon 5/19

10:40 pm-11:10 pm

1 stop19h 30m

$492

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Wed 4/16

6:35 am-3:00 pm

1 stop13h 25m

Washington, D.C. Dulles Intl

Sun 4/20

10:40 pm-5:55 pm

1 stop14h 15m

$503

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Thu 5/1

6:35 am-3:00 pm

1 stop13h 25m

Washington, D.C. Dulles Intl

Sat 5/10

10:45 pm-6:05 pm

1 stop14h 20m

$504

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Sat 4/12

5:00 am-3:35 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Mon 4/28

6:30 pm-11:15 am

1 stop11h 45m

$511

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Thu 5/22

8:35 pm-3:00 pm

1 stop23h 25m

Washington, D.C. Dulles Intl

Thu 6/5

10:40 pm-8:25 pm

1 stop16h 45m

$513

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Fri 4/25

7:20 am-3:50 pm

1 stop13h 30m

Washington, D.C. Dulles Intl

Sat 5/17

10:45 pm-4:15 pm

1 stop12h 30m

$514

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Thu 5/1

8:15 am-3:00 pm

1 stop11h 45m

Washington, D.C. Dulles Intl

Wed 5/7

4:35 pm-11:40 am

1 stop14h 05m

$517

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Thu 5/22

5:00 am-6:07 pm

2 stops18h 07m

Washington, D.C. Reagan-National

Sat 6/7

2:59 pm-11:15 am

2 stops15h 16m

$517

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

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 April 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
7,899 reviews

Food

7.3

Comfort

8.0

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

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
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Food

7.3

Comfort

8.0

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

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
3,192 reviews
Delta
8.0
Very good
7,899 reviews

Food

7.3

Comfort

8.0

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

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
1,321 reviews
Delta
8.0
Very good
7,899 reviews

Food

7.3

Comfort

8.0

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

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
Air Transat
7.8
Good
381 reviews
Delta
8.0
Very good
7,899 reviews

Food

7.3

Comfort

8.0

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

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
1,065 reviews
Delta
8.0
Very good
7,899 reviews

Food

7.3

Comfort

8.0

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

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 Royal Air Maroc, with whom users have recently found tickets for as low as $361. However, be on the lookout for offers from TAP AIR PORTUGAL and Air Transat, 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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