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Portugal

$295+ 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — LIS
Apr 20 — Apr 271
Mon 4/20
Mon 4/27
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 March 21, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/17. 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 4/278:20 pm
IAD
-
LIS
1 stop14h 30m
Scandinavian Airlines
Tue 5/55:00 pm
LIS
-
IAD
1 stop29h 00m
Scandinavian Airlines
Deal found 3/17$581
This oojo deal was found by Cheapflights users on 3/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/268:20 pm
IAD
-
LIS
1 stop14h 15m
Scandinavian Airlines
Tue 5/125:00 pm
LIS
-
IAD
1 stop29h 00m
Scandinavian Airlines
Deal found 3/16$582
This eDestinos deal was found by Cheapflights users on 3/17. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/11:30 pm
DCA
-
LIS
2 stops21h 15m
Multiple Airlines
Mon 12/76:45 am
LIS
-
DCA
2 stops21h 19m
Multiple Airlines
Deal found 3/17$585
This FlightHub deal was found by Cheapflights users on 3/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/259:45 pm
IAD
-
OPO
1 stop20h 45m
Turkish Airlines
Thu 5/74:40 pm
OPO
-
IAD
1 stop23h 55m
Turkish Airlines
Deal found 3/17$587
This oojo deal was found by Cheapflights users on 3/16. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1210:35 pm
IAD
-
OPO
1 stop15h 25m
TAP AIR PORTUGAL
Wed 4/2910:30 pm
OPO
-
IAD
1 stop21h 40m
TAP AIR PORTUGAL
Deal found 3/16$588
This FlightHub deal was found by Cheapflights users on 3/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/151:20 pm
IAD
-
LIS
1 stop21h 15m
Turkish Airlines
Wed 4/225:55 am
LIS
-
IAD
1 stop18h 55m
Turkish Airlines
Deal found 3/17$588
This FlightHub deal was found by Cheapflights users on 3/21. 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.
Tue 4/149:45 pm
IAD
-
OPO
1 stop36h 55m
Turkish Airlines
Fri 4/2410:40 am
OPO
-
IAD
1 stop38h 10m
Turkish Airlines
Deal found 3/21$589
This FlightHub deal was found by Cheapflights users on 3/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/59:45 pm
IAD
-
LIS
1 stop36h 50m
Turkish Airlines
Wed 4/1510:55 am
LIS
-
IAD
1 stop37h 55m
Turkish Airlines
Deal found 3/16$589
This FlightHub deal was found by Cheapflights users on 3/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/51:20 pm
IAD
-
LIS
1 stop21h 20m
Turkish Airlines
Tue 5/1910:55 am
LIS
-
IAD
1 stop29h 40m
Turkish Airlines
Deal found 3/17$590
This FlightHub deal was found by Cheapflights users on 3/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/189:45 pm
IAD
-
OPO
1 stop30h 55m
Turkish Airlines
Wed 4/224:40 pm
OPO
-
IAD
1 stop23h 55m
Turkish Airlines
Deal found 3/16$591
This FlightHub deal was found by Cheapflights users on 3/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/141:20 pm
IAD
-
LIS
1 stop21h 20m
Turkish Airlines
Tue 4/285:05 pm
LIS
-
IAD
1 stop23h 30m
Turkish Airlines
Deal found 3/16$591
This oojo deal was found by Cheapflights users on 3/18. 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 11/48:30 pm
IAD
-
LIS
1 stop14h 35m
Scandinavian Airlines
Tue 11/104:55 pm
LIS
-
IAD
1 stop29h 20m
Scandinavian Airlines
Deal found 3/18$592

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 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$581
(Kiwi.com)

One-way from

$295
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$880
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 ($166 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($33 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 21, 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

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 4/15

1:20 pm-3:40 pm

1 stop21h 20m

Porto

Wed 4/22

4:40 pm-11:35 am

1 stop23h 55m

$606

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sun 4/19

10:35 pm-3:00 pm

1 stop11h 25m

Porto

Thu 4/23

9:00 am-3:10 pm

1 stop11h 10m

$645

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Tue 4/14

5:40 pm-11:25 pm

2 stops24h 45m

Porto

Fri 4/24

6:20 am-4:05 pm

2 stops14h 45m

$708

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Wed 4/15

10:33 am-3:40 pm

2 stops24h 07m

Porto

Wed 4/22

6:00 am-12:59 am

2 stops23h 59m

$771

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 5/4

6:50 pm-10:00 pm

2 stops22h 10m

Porto

Wed 5/13

11:45 am-3:35 pm

1 stop32h 50m

$777

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Wed 4/15

1:25 pm-7:40 am

2 stops13h 15m

Porto

Wed 5/6

8:20 am-10:15 pm

2 stops18h 55m

$777

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sun 7/26

12:30 pm-10:25 am

1 stop16h 55m

Porto

Fri 8/21

5:55 am-7:16 pm

2 stops18h 21m

$790

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Mon 4/20

9:30 pm-8:05 pm

1 stop17h 35m

Porto

Tue 4/28

8:55 pm-7:40 pm

1 stop27h 45m

$799

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Fri 4/10

10:00 am-9:45 am

2 stops18h 45m

Porto

Thu 4/16

6:00 am-6:54 pm

2 stops17h 54m

$811

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Tue 4/14

5:07 pm-3:25 pm

2 stops17h 18m

Porto

Fri 4/24

5:55 am-11:32 pm

2 stops22h 37m

$813

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/16

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 $357). 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 Turkish Airlines, TAP AIR PORTUGAL, and Lufthansa fly from Maryland to Portugal in about 11h 25m. The time it takes to get you to your destination can typically vary by up to 13h 20m. The distance from Maryland to Portugal is about 3537 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 $357). 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 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 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$529Average$922FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$548Average$831FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$643Average$1,062FlexibilityNo cancel feeOn-time70%
TAP AIR PORTUGALCheapest$680Average$942FlexibilityNo cancel feeOn-timeN/A

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