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Portugal

$225+ 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 1/26. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — LIS
Jan 4 — Jan 111
Sun 1/4
Sun 1/11
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 December 5, 2025.

This oojo deal was found by Cheapflights users on 12/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/105:20 pmIAD - OPO
1 stop33h 35mSWISS
Wed 12/177:20 pmOPO - IAD
1 stop26h 20mSWISS
Deal found 12/3$498
This Expedia deal was found by Cheapflights users on 12/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/106:20 pmIAD - OPO
2 stops13h 55mMultiple Airlines
Wed 12/177:20 pmOPO - IAD
1 stop26h 20mMultiple Airlines
Deal found 12/3$510
This FlightHub deal was found by Cheapflights users on 12/3. 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 12/710:30 pmIAD - OPO
1 stop31h 35mTAP AIR PORTUGAL
Sat 1/318:55 amOPO - IAD
1 stop11h 20mTAP AIR PORTUGAL
Deal found 12/3$516
This Expedia deal was found by Cheapflights users on 12/4. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/113:25 pmDCA - OPO
2 stops23h 35mIberia
Wed 12/178:40 pmOPO - DCA
2 stops27h 02mIberia
Deal found 12/4$523
This Mytrip deal was found by Cheapflights users on 12/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/104:35 pmPHL - LIS
1 stop11h 20mMultiple Airlines
Wed 12/1711:00 amLIS - PHL
1 stop16h 46mMultiple Airlines
Deal found 12/2$525
This United Airlines deal was found by Cheapflights users on 12/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/108:05 pmPHL - LIS
1 stop9h 10mUnited Airlines
Wed 12/176:10 amLIS - PHL
2 stops21h 36mUnited Airlines
Deal found 12/2$529
This Expedia deal was found by Cheapflights users on 12/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/101:44 pmDCA - OPO
2 stops17h 01mIberia
Wed 12/178:40 pmOPO - DCA
2 stops27h 02mIberia
Deal found 12/3$595
This FlightHub deal was found by Cheapflights users on 12/4. 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.
Fri 12/510:30 pmIAD - OPO
1 stop15h 30mTAP AIR PORTUGAL
Mon 12/156:55 amOPO - IAD
1 stop13h 20mTAP AIR PORTUGAL
Deal found 12/4$600
This oojo deal was found by Cheapflights users on 12/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/65:30 pmIAD - OPO
1 stop18h 30mTAP AIR PORTUGAL
Tue 12/168:00 pmOPO - IAD
1 stop30h 00mTAP AIR PORTUGAL
Deal found 12/4$613
This Gurufare deal was found by Cheapflights users on 12/4. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/65:30 pmIAD - OPO
1 stop16h 30mTAP AIR PORTUGAL
Mon 12/156:55 amOPO - IAD
1 stop13h 20mTAP AIR PORTUGAL
Deal found 12/4$614
This Mytrip deal was found by Cheapflights users on 12/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/105:05 pmIAD - LIS
1 stop11h 55mMultiple Airlines
Tue 12/1610:50 amLIS - IAD
1 stop13h 40mMultiple Airlines
Deal found 12/2$634
This Gurufare deal was found by Cheapflights users on 12/4. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/510:30 pmIAD - OPO
1 stop13h 30mTAP AIR PORTUGAL
Tue 12/168:00 pmOPO - IAD
1 stop30h 00mTAP AIR PORTUGAL
Deal found 12/4$636

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 December 5, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$427
(Kiwi.com)

One-way from

$225
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,350
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. 5% potential increase in price ($52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 5, 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

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Tue 3/3

5:40 pm-9:30 am

1 stop10h 50m

Porto

Thu 3/12

12:35 pm-9:05 pm

1 stop12h 30m

$445

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Tue 2/24

4:10 pm-9:30 am

1 stop12h 20m

Porto

Tue 3/3

12:35 pm-7:35 pm

1 stop12h 00m

$445

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Mon 1/26

1:10 pm-5:30 pm

2 stops23h 20m

Porto

Mon 2/9

12:05 pm-9:36 pm

2 stops38h 31m

$457

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Tue 3/3

12:38 pm-10:30 am

2 stops16h 52m

Porto

Tue 3/10

11:15 am-5:05 pm

1 stop33h 50m

$469

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Tue 3/24

12:15 pm-9:30 am

2 stops17h 15m

Porto

Tue 3/31

6:00 am-4:00 pm

1 stop15h 00m

$479

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Wed 3/4

3:30 pm-1:15 pm

2 stops16h 45m

Porto

Wed 3/11

7:20 pm-5:05 pm

2 stops25h 45m

$480

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Tue 3/3

12:38 pm-10:30 am

2 stops16h 52m

Porto

Mon 3/9

4:10 pm-5:05 pm

1 stop28h 55m

$482

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Tue 2/24

12:38 pm-10:30 am

2 stops16h 52m

Porto

Tue 3/3

4:10 pm-4:05 pm

1 stop28h 55m

$482

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 3/4

6:05 pm-10:30 am

1 stop11h 25m

Porto

Wed 3/11

5:00 am-5:05 pm

1 stop16h 05m

$483

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Sun 1/18

6:59 pm-3:25 pm

2 stops15h 26m

Porto

Tue 2/3

5:00 am-4:38 pm

2 stops16h 38m

$483

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/3

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 December 5, 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 United Airlines, SWISS, and KLM fly from Maryland to Portugal in about 10h 50m. The time it takes to get you to your destination can typically vary by up to 12h 30m. 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, 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 December 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$345Average$396FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$529Average$922FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$679Average$978FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$701Average$1,398FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$748Average$923FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$771Average$973FlexibilityNo cancel feeOn-time70%

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