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Portugal

$257+ 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 8/28. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — LIS
Aug 2 — Aug 91
Sun 8/2
Sun 8/9
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 July 3, 2026.

This Mytrip deal was found by Cheapflights users on 7/1. 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 8/198:30 pm
BWI
-
OPO
2 stops20h 25m
Multiple Airlines
Wed 8/2610:00 pm
OPO
-
BWI
3 stops26h 25m
Multiple Airlines
Deal found 7/1$613
This Mytrip deal was found by Cheapflights users on 6/30. 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 8/298:30 pm
BWI
-
LIS
2 stops20h 25m
Multiple Airlines
Sun 9/65:55 am
LIS
-
BWI
2 stops21h 20m
Multiple Airlines
Deal found 6/30$626
This Mytrip deal was found by Cheapflights users on 7/2. 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.
Sun 8/168:30 pm
BWI
-
LIS
2 stops20h 35m
Multiple Airlines
Tue 8/2510:15 pm
LIS
-
BWI
2 stops29h 00m
Multiple Airlines
Deal found 7/2$629
This Mytrip deal was found by Cheapflights users on 7/2. 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.
Tue 9/158:30 pm
BWI
-
LIS
3 stops31h 00m
Multiple Airlines
Mon 9/219:20 pm
LIS
-
BWI
3 stops27h 05m
Multiple Airlines
Deal found 7/2$631
This Mytrip deal was found by Cheapflights users on 7/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:30 pm
BWI
-
LIS
2 stops17h 25m
Multiple Airlines
Tue 9/16:30 am
LIS
-
BWI
2 stops17h 55m
Multiple Airlines
Deal found 7/3$636
This Mytrip deal was found by Cheapflights users on 7/1. 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 9/128:30 pm
BWI
-
LIS
3 stops35h 50m
Multiple Airlines
Sat 9/1910:15 pm
LIS
-
BWI
2 stops29h 00m
Multiple Airlines
Deal found 7/1$643
This Mytrip deal was found by Cheapflights users on 7/1. 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 9/128:30 pm
BWI
-
LIS
2 stops20h 05m
Multiple Airlines
Fri 9/185:45 pm
LIS
-
BWI
3 stops30h 40m
Multiple Airlines
Deal found 7/1$644
This Mytrip deal was found by Cheapflights users on 7/2. 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.
Mon 9/148:30 pm
BWI
-
LIS
3 stops31h 00m
Multiple Airlines
Mon 9/219:20 pm
LIS
-
BWI
3 stops27h 05m
Multiple Airlines
Deal found 7/2$650
This Mytrip deal was found by Cheapflights users on 7/1. 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 8/198:30 pm
BWI
-
LIS
2 stops16h 20m
Multiple Airlines
Tue 8/256:30 am
LIS
-
BWI
2 stops17h 55m
Multiple Airlines
Deal found 7/1$651
This Mytrip deal was found by Cheapflights users on 6/30. 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 8/259:55 am
IAD
-
FAO
2 stops24h 25m
Multiple Airlines
Sat 8/299:55 pm
FAO
-
IAD
2 stops23h 50m
Multiple Airlines
Deal found 6/30$656
This Mytrip deal was found by Cheapflights users on 7/1. 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 8/268:30 pm
BWI
-
LIS
2 stops16h 20m
Multiple Airlines
Sat 9/510:15 pm
LIS
-
BWI
2 stops29h 00m
Multiple Airlines
Deal found 7/1$661
This Mytrip deal was found by Cheapflights users on 7/1. 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.
Thu 8/134:20 pm
IAD
-
FAO
2 stops24h 15m
Multiple Airlines
Sun 8/169:50 pm
FAO
-
IAD
2 stops22h 11m
Multiple Airlines
Deal found 7/1$671

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 July 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$613
(Mytrip)

One-way from

$257
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$1,232
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. 23% potential increase in price ($294 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 3, 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.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Fri 11/6

10:30 pm-3:40 pm

1 stop12h 10m

Faro

Sat 11/14

6:05 am-3:15 pm

1 stop14h 10m

$713

PhiladelphiaLisbon

PHL - LIS

PHLLIS

Philadelphia

Wed 10/14

6:15 am-9:20 am

2 stops22h 05m

Lisbon Humberto Delgado

Sat 10/24

11:25 am-2:44 pm

1 stop32h 19m

$753

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Wed 11/11

12:30 pm-1:50 pm

2 stops20h 20m

Faro

Sun 11/15

6:50 pm-3:55 pm

1 stop26h 05m

$804

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Fri 9/11

1:20 pm-3:40 pm

1 stop21h 20m

Porto

Wed 9/16

4:40 pm-11:35 am

1 stop23h 55m

$812
Quickest round-trip

PhiladelphiaLisbon

PHL - LIS

PHLLIS

Philadelphia

Mon 11/30

9:25 pm-9:05 am

Nonstop6h 40m

Lisbon Humberto Delgado

Sun 12/6

7:45 am-3:50 pm

1 stop13h 05m

$817

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 8/12

12:43 pm-7:00 am

1 stop13h 17m

Porto

Wed 8/19

6:00 am-8:00 pm

1 stop19h 00m

$850

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Sat 11/7

7:59 pm-6:00 pm

2 stops17h 01m

Faro

Sat 11/14

2:40 pm-3:45 pm

1 stop30h 05m

$855

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Fri 11/6

6:20 pm-1:50 pm

1 stop14h 30m

Faro

Sat 11/14

9:25 am-11:02 pm

2 stops18h 37m

$860

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 8/5

6:15 pm-3:25 pm

1 stop16h 10m

Porto

Wed 8/19

5:00 am-6:33 pm

2 stops18h 33m

$862

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Mon 8/10

5:00 pm-10:30 am

1 stop12h 30m

Porto

Wed 8/19

5:00 am-6:45 pm

2 stops18h 45m

$862

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

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, October is the cheapest month in which you can book a flight from Maryland to Portugal (average of $399). 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 TAP AIR PORTUGAL, United Airlines, and KLM fly from Maryland to Portugal in about 12h 10m. The time it takes to get you to your destination can typically vary by up to 9h 55m. The distance from Maryland to Portugal is about 3688 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, October is the cheapest month in which you can book a flight from Maryland to Portugal (average of $399). 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

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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 2 airlines flying from Maryland to Portugal

Discover the top 2 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 July 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$640Average$896FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$808Average$1,295FlexibilityNo cancel feeOn-time70%

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