HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portugal

$336+ 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 6/21. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — LIS
Jun 18 — Jun 251
Thu 6/18
Thu 6/25
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Maryland to Portugal with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 May 19, 2026.

This Kiwi.com deal was found by Cheapflights users on 5/17. 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.
Mon 7/133:50 pm
IAD
-
PDL
1 stop13h 15m
Multiple Airlines
Sat 7/1811:30 am
PDL
-
IAD
1 stop27h 16m
Multiple Airlines
Deal found 5/17$682
This eDestinos deal was found by Cheapflights users on 5/13. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/71:00 pm
BWI
-
LIS
2 stops22h 05m
Scandinavian Airlines
Sun 11/154:55 pm
LIS
-
BWI
2 stops34h 42m
Scandinavian Airlines
Deal found 5/13$708
This Mytrip deal was found by Cheapflights users on 5/17. 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 7/1312:40 pm
DCA
-
PDL
2 stops16h 25m
Multiple Airlines
Sat 7/1811:30 am
PDL
-
DCA
1 stop15h 01m
Multiple Airlines
Deal found 5/17$723
This oojo deal was found by Cheapflights users on 5/14. 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 11/75:25 pm
IAD
-
FAO
1 stop25h 25m
TAP AIR PORTUGAL
Sat 11/146:05 am
FAO
-
IAD
1 stop14h 10m
TAP AIR PORTUGAL
Deal found 5/14$725
This oojo deal was found by Cheapflights users on 5/14. 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.
Sun 10/185:40 pm
IAD
-
FAO
1 stop11h 45m
TAP AIR PORTUGAL
Mon 10/266:05 am
FAO
-
IAD
1 stop14h 10m
TAP AIR PORTUGAL
Deal found 5/14$726
This Cheapflightsfares deal was found by Cheapflights users on 5/16. 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.
Tue 11/105:25 pm
IAD
-
FAO
1 stop11h 55m
TAP AIR PORTUGAL
Wed 11/1811:10 am
FAO
-
IAD
1 stop14h 25m
TAP AIR PORTUGAL
Deal found 5/16$733
This Kiwi.com deal was found by Cheapflights users on 5/17. 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 9/183:50 pm
IAD
-
PDL
1 stop13h 45m
Multiple Airlines
Tue 9/2210:30 am
PDL
-
IAD
1 stop32h 40m
Multiple Airlines
Deal found 5/17$738
This Gotogate deal was found by Cheapflights users on 5/16. 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.
Wed 11/1810:30 pm
IAD
-
PDL
1 stop16h 05m
TAP AIR PORTUGAL
Mon 11/237:25 pm
PDL
-
IAD
1 stop23h 20m
TAP AIR PORTUGAL
Deal found 5/16$749
This oojo deal was found by Cheapflights users on 5/15. 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 11/235:25 pm
IAD
-
FAO
1 stop17h 15m
TAP AIR PORTUGAL
Sun 11/294:30 pm
FAO
-
IAD
1 stop27h 45m
TAP AIR PORTUGAL
Deal found 5/15$750
This oojo deal was found by Cheapflights users on 5/13. 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.
Wed 10/215:45 pm
IAD
-
PDL
1 stop12h 00m
TAP AIR PORTUGAL
Wed 10/287:25 pm
PDL
-
IAD
1 stop23h 50m
TAP AIR PORTUGAL
Deal found 5/13$752
This Gotogate deal was found by Cheapflights users on 5/17. 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.
Sun 10/2511:30 pm
IAD
-
FAO
1 stop12h 10m
TAP AIR PORTUGAL
Tue 11/246:05 am
FAO
-
IAD
1 stop13h 40m
TAP AIR PORTUGAL
Deal found 5/17$755
This United Airlines deal was found by Cheapflights users on 5/14. 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 12/610:45 am
BWI
-
OPO
2 stops17h 45m
United Airlines
Wed 12/912:35 pm
OPO
-
BWI
2 stops17h 03m
United Airlines
Deal found 5/14$755

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 May 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$682
(Kiwi.com)

One-way from

$336
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,228
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. 23% potential increase in price ($293 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 19, 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

Cheapest round-trip

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Tue 9/29

6:17 am-7:00 am

2 stops19h 43m

Porto

Wed 10/7

6:00 am-10:19 am

2 stops33h 19m

$806

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Fri 10/16

2:10 pm-10:30 am

2 stops15h 20m

Porto

Tue 10/20

5:00 am-4:48 pm

2 stops16h 48m

$828

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Mon 9/21

7:50 pm-5:25 pm

2 stops16h 35m

Faro

Tue 9/29

10:00 am-3:35 pm

1 stop34h 35m

$853

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Sun 7/26

11:00 am-10:25 am

1 stop18h 25m

Porto

Fri 8/21

5:00 am-4:59 pm

2 stops16h 59m

$863

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sat 8/8

10:29 pm-9:45 am

1 stop30h 16m

Porto

Wed 8/19

6:00 am-3:15 pm

1 stop14h 15m

$864

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sun 7/26

6:36 pm-10:25 am

1 stop10h 49m

Porto

Fri 8/21

5:55 am-6:33 pm

2 stops17h 38m

$871

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Sat 8/8

6:15 am-6:55 am

2 stops43h 40m

Porto

Wed 8/19

2:25 pm-9:49 am

2 stops48h 24m

$873

PhiladelphiaLisbon

PHL - LIS

PHLLIS

Philadelphia

Wed 10/28

1:00 pm-8:10 am

2 stops15h 10m

Lisbon Humberto Delgado

Wed 11/4

5:00 am-3:51 pm

2 stops15h 51m

$887

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 7/15

6:33 am-9:45 am

1 stop22h 12m

Porto

Wed 7/22

11:20 am-11:12 am

1 stop28h 52m

$909

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Sun 9/13

5:40 pm-9:10 am

1 stop34h 30m

Faro

Mon 9/21

9:45 pm-3:35 pm

1 stop22h 50m

$910

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/18

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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, October is the cheapest month in which you can book a flight from Maryland to Portugal (average of $396). 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 KLM, Delta, and United Airlines fly from Maryland to Portugal in about 16h 35m. The time it takes to get you to your destination can typically vary by up to 13h 41m. The distance from Maryland to Portugal is about 3688 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, October is the cheapest month in which you can book a flight from Maryland to Portugal (average of $396). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Maryland to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Charles de Gaulle flights
Newark to Charles de Gaulle flights
John F Kennedy Intl to Leonardo da Vinci/Fiumicino flights
LaGuardia to Heathrow flights
Newark to Leonardo da Vinci/Fiumicino flights
John F Kennedy Intl to Gatwick flights
Newark to Athens flights
Newark to Gatwick flights
John F Kennedy Intl to London City flights
Boston to Heathrow flights
John F Kennedy Intl to Dublin flights
Dulles Intl to Heathrow flights
Los Angeles to Heathrow flights
John F Kennedy Intl to Barcelona-El Prat flights
John F Kennedy Intl to Istanbul flights
Newark to Madrid flights
Newark to Barcelona-El Prat flights
Newark to Lisbon flights
Newark to Dublin flights
LaGuardia to Gatwick flights
John F Kennedy Intl to Athens flights
John F Kennedy Intl to Orly flights
Los Angeles to Charles de Gaulle flights
John F Kennedy Intl to Malpensa flights
Newark to Malpensa flights
Baltimore to Heathrow flights
Los Angeles to Leonardo da Vinci/Fiumicino flights
Newark to Orly flights
John F Kennedy Intl to Lisbon flights
O'Hare Intl to Heathrow flights
Seattle to Heathrow flights
Miami to Madrid flights
John F Kennedy Intl to Madrid flights
John F Kennedy Intl to Frederic Chopin flights
San Francisco to Heathrow flights
Boston to Charles de Gaulle flights
Boston to Gatwick flights
Dallas/Fort Worth to Heathrow flights
Dulles Intl to Charles de Gaulle flights
O'Hare Intl to Leonardo da Vinci/Fiumicino flights
Boston to Leonardo da Vinci/Fiumicino flights
Dallas/Fort Worth to Charles de Gaulle flights
O'Hare Intl to Charles de Gaulle flights
Boston to Dublin flights
Newark to Stansted flights

Top 3 airlines flying from Maryland to Portugal

Discover the top 3 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 May 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$529Average$921FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$640Average$896FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$643Average$1,134FlexibilityNo cancel feeOn-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.