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Portugal

$271+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — LIS
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
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 11, 2026.

This oojo deal was found by Cheapflights users on 2/9. 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 2/1510:30 pm
IAD
-
OPO
1 stop15h 30m
TAP AIR PORTUGAL
Mon 3/28:00 pm
OPO
-
IAD
1 stop23h 35m
TAP AIR PORTUGAL
Deal found 2/9$479
This Mytrip deal was found by Cheapflights users on 2/8. 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.
Tue 3/243:30 pm
PHL
-
OPO
2 stops16h 35m
Multiple Airlines
Tue 3/316:00 am
OPO
-
PHL
1 stop15h 05m
Multiple Airlines
Deal found 2/8$479
This Flysmarter deal was found by Cheapflights users on 2/11. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2311:30 am
PHL
-
OPO
2 stops18h 00m
KLM
Wed 3/115:00 am
OPO
-
PHL
2 stops18h 49m
KLM
Deal found 2/11$483
This Air France deal was found by Cheapflights users on 2/8. 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 2/912:16 pm
PHL
-
OPO
2 stops17h 14m
Multiple Airlines
Wed 2/255:00 am
OPO
-
PHL
2 stops18h 52m
Multiple Airlines
Deal found 2/8$487
This Mytrip deal was found by Cheapflights users on 2/10. 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 3/96:30 pm
IAD
-
OPO
2 stops18h 30m
Multiple Airlines
Mon 3/161:15 pm
OPO
-
IAD
2 stops30h 20m
Multiple Airlines
Deal found 2/10$490
This Mytrip deal was found by Cheapflights users on 2/8. 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 3/163:30 pm
PHL
-
OPO
2 stops16h 35m
Multiple Airlines
Mon 3/2312:30 pm
OPO
-
PHL
1 stop32h 35m
Multiple Airlines
Deal found 2/8$491
This Delta deal was found by Cheapflights users on 2/10. 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.
Wed 2/1811:27 am
PHL
-
OPO
2 stops18h 03m
Delta
Wed 2/255:00 am
OPO
-
PHL
2 stops16h 32m
Delta
Deal found 2/10$494
This FlightHub deal was found by Cheapflights users on 2/8. 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 11/175:25 pm
IAD
-
OPO
1 stop11h 45m
TAP AIR PORTUGAL
Fri 12/411:00 am
OPO
-
IAD
1 stop14h 35m
TAP AIR PORTUGAL
Deal found 2/8$496
This Expedia deal was found by Cheapflights users on 2/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/17:45 pm
PHL
-
OPO
1 stop19h 15m
Iberia
Mon 3/94:40 pm
OPO
-
PHL
1 stop28h 15m
Iberia
Deal found 2/10$497
This American Airlines deal was found by Cheapflights users on 2/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1812:22 pm
PHL
-
OPO
2 stops14h 18m
American Airlines
Wed 2/258:40 pm
OPO
-
PHL
1 stop23h 45m
American Airlines
Deal found 2/9$499
This American Airlines deal was found by Cheapflights users on 2/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/19:00 am
PHL
-
OPO
2 stops17h 40m
American Airlines
Mon 3/94:40 pm
OPO
-
PHL
1 stop28h 15m
American Airlines
Deal found 2/10$501
This Kiwi.com deal was found by Cheapflights users on 2/9. 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 4/138:20 pm
IAD
-
LIS
1 stop14h 15m
Scandinavian Airlines
Wed 4/224:25 pm
LIS
-
IAD
1 stop29h 25m
Scandinavian Airlines
Deal found 2/9$506

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 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$479
(oojo)

One-way from

$271
(oojo)

Popular in

June

Cheapest in

February

Average price

$657
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. 14% potential increase in price ($156 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 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 11, 2026.
Use the filters below to find and compare flights from Maryland to Portugal that are best for you.

Fly from

Maryland

Fly to

Portugal

Route

Depart

Return

Price

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Sun 3/1

7:45 pm-8:00 pm

1 stop19h 15m

Porto

Mon 3/9

4:40 pm-4:55 pm

1 stop28h 15m

$497

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Sat 2/28

9:15 pm-11:45 am

2 stops33h 30m

Porto

Mon 3/9

8:40 pm-2:44 pm

2 stops46h 04m

$522

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Mon 3/16

9:55 am-2:55 pm

2 stops25h 00m

Porto

Mon 3/23

12:30 pm-9:47 am

2 stops49h 17m

$528

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Wed 4/29

6:45 pm-7:05 pm

1 stop19h 20m

Porto

Thu 5/7

9:55 am-12:05 pm

1 stop31h 10m

$535

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Tue 3/24

11:16 am-10:30 am

2 stops19h 14m

Porto

Tue 3/31

5:00 am-9:23 pm

2 stops21h 23m

$545

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Fri 4/17

8:20 pm-11:25 am

1 stop34h 05m

Porto

Sat 4/25

7:20 pm-4:45 pm

1 stop26h 25m

$550

Washington, D.C.Ponta Delgada

IAD - PDL

IADPDL

Washington, D.C. Dulles Intl

Mon 2/16

5:30 pm-8:15 am

1 stop10h 45m

Ponta Delgada Nordela

Wed 2/25

7:25 pm-3:15 pm

1 stop23h 50m

$558

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Wed 4/22

11:50 am-7:40 am

2 stops14h 50m

Porto

Fri 5/8

8:40 pm-5:35 pm

1 stop25h 55m

$564

Washington, D.C.Ponta Delgada

IAD - PDL

IADPDL

Washington, D.C. Dulles Intl

Mon 4/13

10:35 pm-11:45 pm

1 stop21h 10m

Ponta Delgada Nordela

Mon 4/20

3:50 pm-3:05 pm

1 stop27h 15m

$571

Washington, D.C.Ponta Delgada

IAD - PDL

IADPDL

Washington, D.C. Dulles Intl

Mon 3/9

6:30 pm-8:15 am

1 stop10h 45m

Ponta Delgada Nordela

Mon 3/16

7:50 pm-3:35 pm

1 stop22h 45m

$571

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 60 results
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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 $362). 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 Iberia, United Airlines, and SWISS fly from Maryland to Portugal in about 19h 15m. The time it takes to get you to your destination can typically vary by up to 14h 50m. The distance from Maryland to Portugal is about 3403 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 $362). 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 6 airlines flying from Maryland to Portugal

Discover the top 6 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 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$344Average$414FlexibilityNo cancel feeOn-timeN/A
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$1,174FlexibilityNo cancel feeOn-time69%

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