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Portugal

$241+ Cheap flights from Maryland to Portugal

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 4/28. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — LIS
Mar 30 — Apr 61
Mon 3/30
Mon 4/6
1 adult, Economy
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Cheap flight deals from Maryland to Portugal

Cheapest flights from Maryland to Portugal
Explore the most affordable flight options available from Maryland to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 28, 2026.

This FlightHub deal was found by Cheapflights users on 2/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:20 pm
IAD
-
LIS
1 stop19h 05m
Scandinavian Airlines
Fri 4/179:15 pm
LIS
-
IAD
1 stop24h 45m
Scandinavian Airlines
Deal found 2/25$541
This FlightHub deal was found by Cheapflights users on 2/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/198:20 pm
IAD
-
LIS
1 stop14h 15m
Scandinavian Airlines
Sun 5/107:00 am
LIS
-
IAD
2 stops34h 23m
Scandinavian Airlines
Deal found 2/25$544
This Mytrip deal was found by Cheapflights users on 2/27. 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.
Mon 4/139:00 pm
IAD
-
LIS
1 stop15h 40m
Royal Air Maroc
Mon 4/2012:50 pm
LIS
-
IAD
1 stop11h 10m
Royal Air Maroc
Deal found 2/27$545
This FlightHub deal was found by Cheapflights users on 2/24. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/209:00 pm
IAD
-
LIS
1 stop15h 40m
Royal Air Maroc
Mon 5/412:50 pm
LIS
-
IAD
1 stop11h 10m
Royal Air Maroc
Deal found 2/24$546
This FlightHub deal was found by Cheapflights users on 2/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/209:00 pm
IAD
-
LIS
1 stop15h 40m
Royal Air Maroc
Thu 4/306:40 pm
LIS
-
IAD
1 stop29h 20m
Royal Air Maroc
Deal found 2/26$547
This Delta deal was found by Cheapflights users on 2/24. 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.
Sun 10/117:59 pm
IAD
-
OPO
2 stops14h 26m
Delta
Thu 11/511:15 am
OPO
-
IAD
1 stop33h 30m
Delta
Deal found 2/24$548
This FlightHub deal was found by Cheapflights users on 2/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/199:00 pm
IAD
-
LIS
1 stop9h 50m
Royal Air Maroc
Thu 4/306:40 pm
LIS
-
IAD
1 stop29h 20m
Royal Air Maroc
Deal found 2/25$548
This oojo deal was found by Cheapflights users on 2/25. 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 4/1810:35 pm
IAD
-
OPO
1 stop16h 50m
TAP AIR PORTUGAL
Sat 4/259:15 pm
OPO
-
IAD
1 stop22h 55m
TAP AIR PORTUGAL
Deal found 2/25$549
This Mytrip deal was found by Cheapflights users on 2/25. 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.
Sun 4/126:15 pm
IAD
-
LIS
2 stops23h 05m
Multiple Airlines
Mon 4/2010:45 pm
LIS
-
IAD
2 stops25h 50m
Multiple Airlines
Deal found 2/25$549
This KLM deal was found by Cheapflights users on 2/26. 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 10/116:15 pm
IAD
-
OPO
1 stop16h 10m
KLM
Wed 11/411:25 am
OPO
-
IAD
1 stop12h 50m
KLM
Deal found 2/26$551
This Trip.com deal was found by Cheapflights users on 2/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/188:20 pm
IAD
-
LIS
1 stop14h 30m
Scandinavian Airlines
Fri 5/229:15 pm
LIS
-
IAD
1 stop24h 45m
Scandinavian Airlines
Deal found 2/24$551
This United Airlines deal was found by Cheapflights users on 2/24. 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.
Sun 10/115:20 pm
IAD
-
OPO
1 stop11h 25m
United Airlines
Fri 11/66:00 am
OPO
-
IAD
2 stops19h 33m
United Airlines
Deal found 2/24$552

Find flight deals from Maryland to Portugal

Keep the following information in mind while searching for Maryland to Portugal flight deals. Data was last updated February 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$541
(FlightHub)

One-way from

$241
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$690
Provider with most accurate pricing for Washington, D.C. (WAS)-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Lisbon Humberto Delgado flights.
Search Deals
From Maryland to Portugal
Search Deals
One-way flight from Maryland to Portugal
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($159 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($31 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 Maryland to Portugal 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 28, 2026.
Use the filters below to find and compare flights from Maryland to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sun 4/26

9:45 pm-10:00 pm

1 stop19h 15m

Porto

Fri 5/8

5:00 am-6:53 pm

2 stops18h 53m

$604

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Tue 3/31

9:45 pm-10:05 pm

1 stop19h 20m

Porto

Wed 4/15

5:00 am-5:57 pm

2 stops17h 57m

$614

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Tue 3/31

3:35 pm-3:25 pm

2 stops18h 50m

Porto

Wed 4/15

5:00 am-7:16 pm

2 stops19h 16m

$618

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 4/1

6:10 pm-6:20 pm

1 stop19h 10m

Porto

Wed 4/15

5:00 am-6:08 pm

2 stops18h 08m

$619

Washington, D.C.Lisbon

DCA - LIS

DCALIS

Washington, D.C. Reagan-National

Wed 5/6

11:00 am-4:00 pm

2 stops24h 00m

Lisbon Humberto Delgado

Mon 5/11

7:00 am-11:24 pm

2 stops21h 24m

$672

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 4/15

6:10 pm-6:20 pm

1 stop19h 10m

Porto

Sat 5/2

5:00 am-4:30 pm

2 stops16h 30m

$686

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Thu 3/19

2:30 pm-3:10 pm

1 stop20h 40m

Porto

Mon 3/23

10:55 am-12:45 pm

1 stop29h 50m

$697

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Fri 4/24

1:25 pm-7:40 am

2 stops13h 15m

Porto

Fri 5/1

11:15 am-11:59 pm

2 stops17h 44m

$704

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Sat 4/25

1:25 pm-7:40 am

2 stops13h 15m

Porto

Sat 5/2

8:20 am-10:47 pm

2 stops19h 27m

$708

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Thu 4/16

5:40 pm-8:30 pm

1 stop21h 50m

Porto

Fri 5/1

11:15 am-11:59 pm

2 stops17h 44m

$715

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/24

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Maryland to Portugal

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

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

Currently, May is the cheapest month in which you can book a flight from Maryland to Portugal (average of $365). Flying from Maryland to Portugal in January is currently the most expensive (average of $1,465). 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.

Related info for your journey

Find useful and relevant information for your journey from Maryland to Portugal. 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 Maryland to Portugal?

    Airlines like Delta, British Airways, and United Airlines fly from Maryland to Portugal in about 10h 45m. The time it takes to get you to your destination can typically vary by up to 8h 30m. The distance from Maryland to Portugal is about 2745 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

    Currently, May is the cheapest month in which you can book a flight from Maryland to Portugal (average of $365). Flying from Maryland to Portugal in January is currently the most expensive (average of $1,465). 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 Maryland to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Maryland to Portugal

Discover the top 5 airlines that operate flights from Maryland to Portugal. 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 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$529Average$922FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$548Average$831FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$643Average$988FlexibilityNo cancel feeOn-time70%
TAP AIR PORTUGALCheapest$680Average$991FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$755Average$1,188FlexibilityNo cancel feeOn-time69%

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