HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portugal

$242+ 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 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — LIS
Apr 5 — Apr 121
Sun 4/5
Sun 4/12
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 March 6, 2026.

This Delta deal was found by Cheapflights users on 3/3. 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.
Sun 4/126:00 am
PHL
-
OPO
2 stops35h 00m
Delta
Tue 4/285:00 am
OPO
-
PHL
2 stops18h 23m
Delta
Deal found 3/3$502
This Air France deal was found by Cheapflights users on 3/3. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/136:29 pm
PHL
-
OPO
2 stops15h 56m
Multiple Airlines
Tue 4/285:00 am
OPO
-
PHL
2 stops18h 23m
Multiple Airlines
Deal found 3/3$513
This Delta deal was found by Cheapflights users on 3/3. 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.
Mon 3/98:40 am
PHL
-
OPO
2 stops21h 50m
Delta
Mon 3/1611:15 am
OPO
-
PHL
2 stops40h 44m
Delta
Deal found 3/3$514
This British Airways deal was found by Cheapflights users on 3/3. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/127:35 pm
PHL
-
OPO
1 stop20h 00m
Multiple Airlines
Tue 4/288:40 pm
OPO
-
PHL
1 stop26h 00m
Multiple Airlines
Deal found 3/3$520
This Delta deal was found by Cheapflights users on 3/2. 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.
Tue 4/146:58 pm
PHL
-
OPO
2 stops18h 22m
Delta
Fri 4/245:55 am
OPO
-
PHL
2 stops23h 03m
Delta
Deal found 3/2$525
This Orbitz deal was found by Cheapflights users on 3/3. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/292:45 pm
PHL
-
OPO
2 stops24h 15m
Iberia
Tue 5/58:40 pm
OPO
-
PHL
1 stop25h 55m
Iberia
Deal found 3/3$530
This Booking.com deal was found by Cheapflights users on 3/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/127:35 pm
PHL
-
OPO
1 stop20h 00m
British Airways
Tue 4/2812:25 pm
OPO
-
PHL
2 stops28h 04m
British Airways
Deal found 3/3$532
This Delta deal was found by Cheapflights users on 3/3. 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.
Mon 5/46:00 am
PHL
-
OPO
2 stops28h 25m
Delta
Fri 5/155:00 am
OPO
-
PHL
2 stops22h 09m
Delta
Deal found 3/3$543
This FlightHub deal was found by Cheapflights users on 3/3. 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 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 3/3$544
This BusinessClass deal was found by Cheapflights users on 3/3. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/98:40 pm
PHL
-
OPO
1 stop16h 55m
British Airways
Tue 3/1712:25 pm
OPO
-
PHL
2 stops27h 17m
British Airways
Deal found 3/3$544
This FlightHub deal was found by Cheapflights users on 3/4. 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.
Wed 5/69:00 pm
IAD
-
LIS
1 stop9h 50m
Royal Air Maroc
Sun 5/106:40 pm
LIS
-
IAD
1 stop29h 20m
Royal Air Maroc
Deal found 3/4$545
This FlightHub deal was found by Cheapflights users on 3/4. 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 11/238:45 pm
IAD
-
LIS
1 stop15h 10m
Royal Air Maroc
Sat 11/285:55 pm
LIS
-
IAD
1 stop29h 50m
Royal Air Maroc
Deal found 3/4$546

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 March 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$502
(Delta)

One-way from

$242
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$897
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 ($162 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 6, 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

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Sun 4/12

6:55 pm-6:10 pm

2 stops18h 15m

Porto

Tue 4/28

5:00 am-10:50 pm

2 stops22h 50m

$567

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Mon 5/4

3:42 pm-3:30 pm

2 stops18h 48m

Porto

Mon 5/11

4:20 pm-8:46 am

2 stops45h 26m

$618

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Mon 8/3

10:05 am-7:00 am

1 stop15h 55m

Porto

Wed 8/19

2:25 pm-7:19 pm

2 stops33h 54m

$633

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sun 4/26

6:15 pm-3:25 pm

1 stop16h 10m

Porto

Thu 5/7

5:00 am-4:31 pm

2 stops16h 31m

$652

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Thu 4/16

9:45 pm-3:25 pm

1 stop12h 40m

Porto

Thu 4/23

5:55 am-11:03 pm

2 stops22h 08m

$660

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Tue 4/14

6:50 pm-3:25 pm

2 stops15h 35m

Porto

Fri 4/24

5:55 am-11:03 pm

2 stops22h 08m

$664

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

5:55 am-6:08 pm

2 stops17h 13m

$666
Quickest round-trip

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Mon 8/17

4:20 pm-7:00 am

1 stop9h 40m

Porto

Mon 8/24

9:00 am-3:53 pm

1 stop11h 53m

$670

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Tue 9/1

9:40 am-7:00 am

1 stop16h 20m

Porto

Tue 9/8

12:15 pm-2:23 pm

2 stops31h 08m

$681

Washington, D.C.Ponta Delgada

IAD - PDL

IADPDL

Washington, D.C. Dulles Intl

Thu 4/16

10:35 pm-6:50 pm

1 stop16h 15m

Ponta Delgada Nordela

Thu 4/23

7:40 pm-3:10 pm

1 stop23h 30m

$692

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

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, 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 Scandinavian Airlines, Royal Air Maroc, and TAP AIR PORTUGAL fly from Maryland to Portugal in about 9h 50m. The time it takes to get you to your destination can typically vary by up to 7h. The distance from Maryland to Portugal is about 3580 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

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
John F Kennedy Intl to Charles de Gaulle flights
Newark to Heathrow flights
Newark to Charles de Gaulle flights
John F Kennedy Intl to Leonardo da Vinci/Fiumicino flights
Newark to Leonardo da Vinci/Fiumicino flights
John F Kennedy Intl to Gatwick flights
Newark to Orly flights
LaGuardia to Heathrow flights
John F Kennedy Intl to Lisbon flights
John F Kennedy Intl to Athens flights
Boston to Heathrow flights
John F Kennedy Intl to Orly flights
John F Kennedy Intl to Dublin flights
Los Angeles to Heathrow flights
Dulles Intl to Heathrow flights
John F Kennedy Intl to Madrid flights
Newark to Dublin flights
Newark to Athens flights
Newark to Gatwick flights
Newark to Madrid flights
John F Kennedy Intl to London City flights
John F Kennedy Intl to Barcelona-El Prat flights
Newark to Lisbon flights
Newark to Barcelona-El Prat flights
Miami to Madrid flights
O'Hare Intl to Heathrow flights
John F Kennedy Intl to Malpensa flights
O'Hare Intl to Leonardo da Vinci/Fiumicino flights
John F Kennedy Intl to Istanbul flights
Boston to Charles de Gaulle flights
Baltimore to Heathrow flights
Boston to Leonardo da Vinci/Fiumicino flights
Newark to Malpensa flights
Seattle to Heathrow flights
San Francisco to Heathrow flights
Dallas/Fort Worth to Heathrow flights
O'Hare Intl to Charles de Gaulle flights
John F Kennedy Intl to Frederic Chopin flights
Dulles Intl to Charles de Gaulle flights
Los Angeles to Charles de Gaulle flights
LaGuardia to Gatwick flights
Boston to Dublin flights
Dulles Intl to Leonardo da Vinci/Fiumicino flights
San Francisco to Charles de Gaulle flights
Dallas/Fort Worth to Leonardo da Vinci/Fiumicino flights

Top 4 airlines flying from Maryland to Portugal

Discover the top 4 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 March 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$529Average$922FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$548Average$831FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$643Average$996FlexibilityNo cancel feeOn-time70%
TAP AIR PORTUGALCheapest$680Average$961FlexibilityNo cancel feeOn-timeN/A

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.