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Portugal

$234+ 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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — LIS
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
1 adult, Economy
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Find 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 November 12, 2025.

This Mytrip deal was found by Cheapflights users on 11/10. 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.
Wed 12/107:40 pmBWI - LIS
2 stops16h 05mMultiple Airlines
Sun 12/146:10 amLIS - BWI
2 stops17h 30mMultiple Airlines
Deal found 11/10$484
This Delta deal was found by Cheapflights users on 11/10. 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.
Mon 11/242:35 pmBWI - OPO
2 stops14h 55mDelta
Tue 12/96:05 amOPO - BWI
2 stops17h 57mDelta
Deal found 11/10$491
This CheapOair deal was found by Cheapflights users on 11/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/39:45 amIAD - OPO
2 stops22h 30mAir Canada
Mon 12/86:00 amOPO - IAD
2 stops43h 59mAir Canada
Deal found 11/10$494
This FlightHub deal was found by Cheapflights users on 11/10. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:00 amDCA - OPO
2 stops26h 15mAir Canada
Mon 12/86:00 amOPO - DCA
2 stops57h 21mAir Canada
Deal found 11/10$494
This KLM deal was found by Cheapflights users on 11/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/92:00 pmDCA - OPO
2 stops15h 30mMultiple Airlines
Tue 12/1611:25 amOPO - DCA
2 stops16h 43mMultiple Airlines
Deal found 11/11$497
This Mytrip deal was found by Cheapflights users on 11/12. 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 12/16:00 pmIAD - OPO
1 stop15h 55mMultiple Airlines
Mon 12/86:00 amOPO - IAD
2 stops43h 59mMultiple Airlines
Deal found 11/12$498
This Mytrip deal was found by Cheapflights users on 11/10. 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 12/85:30 pmIAD - OPO
2 stops18h 30mMultiple Airlines
Mon 12/151:15 pmOPO - IAD
2 stops30h 20mMultiple Airlines
Deal found 11/10$503
This Mytrip deal was found by Cheapflights users on 11/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:40 pmBWI - LIS
2 stops14h 15mMultiple Airlines
Sat 12/139:45 pmLIS - BWI
2 stops25h 55mMultiple Airlines
Deal found 11/9$510
This United Airlines deal was found by Cheapflights users on 11/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/88:20 amIAD - OPO
2 stops22h 20mUnited Airlines
Mon 12/1512:30 pmOPO - IAD
2 stops51h 53mUnited Airlines
Deal found 11/9$511
This United Airlines deal was found by Cheapflights users on 11/12. 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.
Mon 12/16:30 amIAD - OPO
2 stops24h 10mUnited Airlines
Mon 12/812:30 pmOPO - IAD
2 stops37h 29mUnited Airlines
Deal found 11/12$512
This Mytrip deal was found by Cheapflights users on 11/10. 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 12/15:30 pmPHL - LIS
1 stop14h 45mMultiple Airlines
Wed 12/106:40 amLIS - PHL
1 stop14h 20mMultiple Airlines
Deal found 11/10$517
This United Airlines deal was found by Cheapflights users on 11/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/81:10 pmBWI - OPO
2 stops17h 30mMultiple Airlines
Mon 12/154:15 pmOPO - BWI
2 stops33h 53mMultiple Airlines
Deal found 11/10$521

Cheap flight deals from Maryland to Portugal

Keep the following information in mind while searching for Maryland to Portugal flight deals. Data was last updated November 12, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$475
(Mytrip)

One-way from

$234
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$823
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. 6% potential increase in price ($61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
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 November 12, 2025.
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

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Mon 11/24

2:35 pm-10:30 am

2 stops14h 55m

Porto

Tue 12/9

6:05 am-7:02 pm

2 stops17h 57m

$491

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Wed 1/14

10:54 am-10:30 am

2 stops18h 36m

Porto

Thu 1/22

6:35 am-11:07 pm

2 stops21h 32m

$492

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Wed 12/3

6:00 am-1:15 pm

2 stops26h 15m

Porto

Mon 12/8

6:00 am-10:21 am

2 stops57h 21m

$494

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Tue 12/9

2:00 pm-10:30 am

2 stops15h 30m

Porto

Tue 12/16

11:25 am-11:08 pm

2 stops16h 43m

$497

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 12/10

6:05 pm-3:25 pm

1 stop16h 20m

Porto

Wed 12/17

11:25 am-11:08 pm

2 stops16h 43m

$498

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 12/1

6:00 pm-2:55 pm

1 stop15h 55m

Porto

Mon 12/8

6:00 am-8:59 pm

2 stops43h 59m

$498

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 12/8

1:10 pm-11:40 am

2 stops17h 30m

Porto

Mon 12/15

12:30 pm-3:50 pm

1 stop32h 20m

$511

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 12/1

6:30 am-11:40 am

2 stops24h 10m

Porto

Mon 12/8

12:30 pm-8:59 pm

2 stops37h 29m

$512

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Mon 12/8

1:10 pm-11:40 am

2 stops17h 30m

Porto

Mon 12/15

4:15 pm-9:08 pm

2 stops33h 53m

$521

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Thu 12/4

8:30 pm-6:30 pm

1 stop17h 00m

Porto

Mon 12/8

7:20 pm-4:40 pm

1 stop26h 20m

$530

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

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, February is the cheapest month in which you can book a flight from Maryland to Portugal (average of $348). Flying from Maryland to Portugal in July is currently the most expensive (average of $716). 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.

What is the cheapest time of day to fly from MD to PT?

Find hourly flight availability from Maryland to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 12, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 35% on flights from Maryland to Portugal by exploring options for tickets at noon.

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, Air Canada, and KLM fly from Maryland to Portugal in about 14h 55m. The time it takes to get you to your destination can typically vary by up to 11h 20m. The distance from Maryland to Portugal is about 3493 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Maryland to Portugal one-way?

    The cheapest airline one-way is Scandinavian Airlines, with whom users have recently found tickets for as low as $311. However, be on the lookout for offers from Air Canada and TAP AIR PORTUGAL, as they are both options that can get you from Maryland to Portugal for a low price.

  • 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, February is the cheapest month in which you can book a flight from Maryland to Portugal (average of $348). Flying from Maryland to Portugal in July is currently the most expensive (average of $716). 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 November 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$345Average$396FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$529Average$963FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$641Average$978FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$701Average$1,298FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$748Average$923FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$771Average$1,040FlexibilityNo cancel feeOn-time70%

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