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$305+ 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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — BWI
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheap 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 February 4, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/67:20 pm
OPO
-
IAD
1 stop25h 00m
SWISS
Mon 5/258:20 pm
IAD
-
OPO
1 stop30h 35m
SWISS
Deal found 2/2$472
This oojo deal was found by Cheapflights users on 2/3. 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.
Tue 4/219:00 am
OPO
-
IAD
1 stop11h 05m
TAP AIR PORTUGAL
Wed 4/2910:35 pm
IAD
-
OPO
1 stop19h 35m
TAP AIR PORTUGAL
Deal found 2/3$504
This oojo deal was found by Cheapflights users on 2/2. 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.
Mon 3/28:00 pm
OPO
-
IAD
1 stop23h 35m
TAP AIR PORTUGAL
Mon 3/96:30 pm
IAD
-
OPO
1 stop16h 30m
TAP AIR PORTUGAL
Deal found 2/2$509
This Rumbo deal was found by Cheapflights users on 2/2. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/57:00 am
OPO
-
IAD
1 stop13h 15m
TAP AIR PORTUGAL
Wed 2/1810:30 pm
IAD
-
OPO
1 stop9h 35m
TAP AIR PORTUGAL
Deal found 2/2$515
This Delta deal was found by Cheapflights users on 2/2. 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 3/25:00 am
OPO
-
IAD
1 stop16h 05m
Delta
Mon 3/91:19 pm
IAD
-
OPO
2 stops17h 11m
Delta
Deal found 2/2$570
This Delta deal was found by Cheapflights users on 2/2. 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 5/45:00 am
OPO
-
IAD
1 stop15h 35m
Delta
Mon 5/116:10 pm
IAD
-
OPO
1 stop11h 30m
Delta
Deal found 2/2$576
This Delta deal was found by Cheapflights users on 2/3. 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 5/215:00 am
LIS
-
IAD
1 stop15h 35m
Delta
Tue 5/269:45 pm
IAD
-
LIS
1 stop12h 10m
Delta
Deal found 2/3$577
This Rumbo deal was found by Cheapflights users on 2/3. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/711:25 am
LIS
-
IAD
Nonstop8h 50m
TAP AIR PORTUGAL
Sun 2/1510:30 pm
IAD
-
LIS
Nonstop7h 05m
TAP AIR PORTUGAL
Deal found 2/3$578
This KLM deal was found by Cheapflights users on 2/2. 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.
Tue 5/54:20 pm
OPO
-
IAD
1 stop28h 15m
KLM
Mon 5/116:10 pm
IAD
-
OPO
1 stop16h 20m
KLM
Deal found 2/2$582
This Delta deal was found by Cheapflights users on 2/3. 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 5/2111:55 am
LIS
-
DCA
2 stops16h 29m
Delta
Tue 5/2611:55 am
DCA
-
LIS
2 stops15h 55m
Delta
Deal found 2/3$583
This Delta deal was found by Cheapflights users on 2/3. 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.
Tue 4/216:15 am
OPO
-
IAD
2 stops21h 48m
Delta
Wed 4/299:45 pm
IAD
-
OPO
1 stop19h 15m
Delta
Deal found 2/3$583
This KLM deal was found by Cheapflights users on 2/2. 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 4/25:00 am
OPO
-
IAD
1 stop15h 35m
KLM
Sat 4/119:45 pm
IAD
-
OPO
1 stop19h 15m
KLM
Deal found 2/2$586

Find flight deals from Portugal to Maryland

Keep the following information in mind while searching for Portugal to Maryland flight deals. Data was last updated February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$472
(Kiwi.com)

One-way from

$301
(Kiwi.com)

Popular in

July

Cheapest in

September

Average price

$559
Provider with most accurate pricing for Lisbon Humberto Delgado-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Washington, D.C. (WAS) flights.
Search Deals
From Portugal to Maryland
Search Deals
One-way flight from Portugal to Maryland
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($88 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 4, 2026.
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

Mon 5/4

5:00 am-3:35 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Mon 5/11

6:10 pm-10:40 am

1 stop11h 30m

$576

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Thu 5/21

5:00 am-3:35 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Tue 5/26

9:45 pm-2:55 pm

1 stop12h 10m

$577

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Mon 6/1

5:15 pm-8:35 pm

Nonstop8h 20m

Washington, D.C. Dulles Intl

Sat 8/1

5:05 pm-5:30 am

Nonstop7h 25m

$583

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Thu 5/21

11:55 am-11:24 pm

2 stops16h 29m

Washington, D.C. Reagan-National

Tue 5/26

11:55 am-8:50 am

2 stops15h 55m

$583

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Tue 4/21

6:15 am-11:03 pm

2 stops21h 48m

Washington, D.C. Dulles Intl

Wed 4/29

9:45 pm-10:00 pm

1 stop19h 15m

$583

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Thu 4/2

5:00 am-3:35 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Sat 4/11

9:45 pm-10:00 pm

1 stop19h 15m

$586

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Thu 4/16

6:00 am-7:55 pm

1 stop18h 55m

Washington, D.C. Dulles Intl

Sun 4/19

5:55 pm-11:15 am

1 stop12h 20m

$599

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Thu 5/21

10:00 am-4:59 pm

1 stop11h 59m

Washington, D.C. Reagan-National

Tue 5/26

5:00 pm-8:00 am

1 stop10h 00m

$601

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 3/2

12:30 pm-11:21 pm

2 stops15h 51m

Washington, D.C. Dulles Intl

Mon 3/9

5:35 pm-9:30 am

1 stop11h 55m

$601

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Tue 5/5

8:40 am-4:45 pm

1 stop13h 05m

Washington, D.C. Dulles Intl

Wed 5/13

8:20 pm-7:55 am

1 stop30h 35m

$604

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

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
No data available for this route at this time. Please check back soon.

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 February 4, 2026.
Read reviews from past customers who have flown British Airways from Portugal to Maryland. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,712 reviews

Boarding

6.9

Crew

7.6

Entertainment

6.4

Overall

6.7

Comfort

6.8

Food

6.4

Reviews

1 / 20
6.0
Good

Roxanne,Sep 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.
British Airways
6.7
Okay
7,712 reviews
British Airways
6.7
Okay
7,712 reviews

Boarding

6.9

Crew

7.6

Entertainment

6.4

Overall

6.7

Comfort

6.8

Food

6.4

Reviews

1 / 20
6.0
Good

Roxanne,Sep 2025

LHR - IAD

Food was mediocre. Couldn't use headphones because no information on how to use. Staff paid so much attention on a family with a baby . They got VIP treatment.

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.

  • How long is the flight from Portugal to Maryland?

    There are many flights that can get you from Portugal to Maryland in 8h 20m. Fly via Delta, TAP AIR PORTUGAL, or KLM to get the fastest option. Portugal and Maryland are separated by a distance of 3580 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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.

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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Top airline flying from Portugal to Maryland

Discover the top airline that operate flights from Portugal to Maryland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$500Average$644FlexibilityNo cancel feeOn-time70%

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