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Portugal

$345+ 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 10/13. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — LIS
May 18 — May 251
Mon 5/18
Mon 5/25
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 April 18, 2026.

This CheapOair deal was found by Cheapflights users on 4/15. 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.
Tue 9/81:20 pm
IAD
-
OPO
1 stop21h 20m
Turkish Airlines
Tue 9/154:50 pm
OPO
-
IAD
1 stop23h 45m
Turkish Airlines
Deal found 4/15$648
This FlightHub deal was found by Cheapflights users on 4/17. 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.
Mon 9/211:20 pm
IAD
-
OPO
1 stop21h 30m
Turkish Airlines
Mon 10/1210:40 am
OPO
-
IAD
1 stop38h 10m
Turkish Airlines
Deal found 4/17$654
This oojo deal was found by Cheapflights users on 4/15. 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.
Mon 10/199:45 pm
IAD
-
OPO
1 stop31h 00m
Turkish Airlines
Tue 10/2710:55 am
OPO
-
IAD
1 stop37h 20m
Turkish Airlines
Deal found 4/15$656
This FlightHub deal was found by Cheapflights users on 4/15. 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 9/11:20 pm
IAD
-
OPO
1 stop21h 20m
Turkish Airlines
Mon 9/146:30 am
OPO
-
IAD
1 stop34h 05m
Turkish Airlines
Deal found 4/15$657
This FlightHub deal was found by Cheapflights users on 4/16. 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.
Thu 9/179:45 pm
IAD
-
OPO
1 stop20h 45m
Turkish Airlines
Mon 9/2110:40 am
OPO
-
IAD
1 stop29h 55m
Turkish Airlines
Deal found 4/16$658
This FlightHub deal was found by Cheapflights users on 4/15. 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 9/231:20 pm
IAD
-
OPO
1 stop21h 20m
Turkish Airlines
Thu 10/111:00 am
OPO
-
IAD
1 stop29h 35m
Turkish Airlines
Deal found 4/15$663
This FlightHub deal was found by Cheapflights users on 4/15. 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 9/151:20 pm
IAD
-
OPO
1 stop21h 20m
Turkish Airlines
Wed 9/304:40 pm
OPO
-
IAD
1 stop23h 55m
Turkish Airlines
Deal found 4/15$667
This Kiwi.com deal was found by Cheapflights users on 4/14. 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.
Tue 11/108:30 pm
IAD
-
FAO
1 stop12h 20m
SWISS
Wed 11/182:40 pm
FAO
-
IAD
1 stop31h 00m
SWISS
Deal found 4/14$672
This FlightHub deal was found by Cheapflights users on 4/17. 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.
Mon 9/211:20 pm
IAD
-
OPO
1 stop21h 30m
Turkish Airlines
Sun 10/114:40 pm
OPO
-
IAD
1 stop23h 55m
Turkish Airlines
Deal found 4/17$673
This FlightHub deal was found by Cheapflights users on 4/16. 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 9/89:45 pm
IAD
-
OPO
1 stop20h 45m
Turkish Airlines
Thu 9/174:40 pm
OPO
-
IAD
1 stop23h 55m
Turkish Airlines
Deal found 4/16$674
This FlightHub deal was found by Cheapflights users on 4/15. 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.
Thu 10/11:20 pm
IAD
-
OPO
1 stop29h 10m
Turkish Airlines
Sun 10/410:45 am
OPO
-
IAD
1 stop29h 50m
Turkish Airlines
Deal found 4/15$676
This FlightHub deal was found by Cheapflights users on 4/17. 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.
Sun 4/261:20 pm
IAD
-
OPO
1 stop21h 30m
Turkish Airlines
Thu 5/711:00 am
OPO
-
IAD
1 stop29h 35m
Turkish Airlines
Deal found 4/17$681

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 April 18, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$648
(CheapOair)

One-way from

$345
(Air Canada)

Popular in

June

Cheapest in

January

Average price

$871
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. 20% potential increase in price ($242 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 April 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 April 18, 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

Thu 8/20

1:20 pm-3:45 pm

1 stop21h 25m

Porto

Sat 8/29

6:15 am-11:35 am

1 stop34h 20m

$845

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Tue 8/11

9:45 pm-10:05 pm

1 stop19h 20m

Porto

Tue 8/18

6:50 pm-3:35 pm

1 stop25h 45m

$854

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Thu 8/13

12:30 pm-6:55 am

2 stops13h 25m

Porto

Wed 8/26

2:25 pm-9:34 am

2 stops24h 09m

$878
Quickest round-trip

Washington, D.C.Ponta Delgada

IAD - PDL

IADPDL

Washington, D.C. Dulles Intl

Wed 8/26

5:45 pm-9:45 am

1 stop12h 00m

Ponta Delgada Nordela

Thu 9/10

10:45 am-8:35 pm

1 stop13h 50m

$882

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Tue 9/1

6:15 am-7:00 am

2 stops19h 45m

Porto

Tue 9/8

12:15 pm-4:03 pm

2 stops32h 48m

$885

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 9/9

7:59 pm-3:25 pm

2 stops14h 26m

Porto

Fri 9/18

5:00 am-3:35 pm

1 stop15h 35m

$890

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Fri 5/8

5:40 pm-9:05 pm

1 stop22h 25m

Faro

Thu 5/14

8:20 pm-3:35 pm

1 stop24h 15m

$908

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Sun 4/26

5:00 pm-3:25 pm

2 stops17h 25m

Porto

Fri 5/8

5:00 am-4:33 pm

2 stops16h 33m

$910

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Fri 8/14

9:30 pm-7:05 pm

1 stop16h 35m

Porto

Wed 8/26

8:20 pm-7:40 pm

1 stop28h 20m

$912

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Tue 5/5

8:30 pm-9:05 am

3 stops31h 35m

Faro

Sun 5/10

9:50 pm-9:18 pm

3 stops28h 28m

$920

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

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 $396). 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, KLM, and United Airlines fly from Maryland to Portugal in about 13h 25m. The time it takes to get you to your destination can typically vary by up to 8h. The distance from Maryland to Portugal is about 3493 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 $396). 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 3 airlines flying from Maryland to Portugal

Discover the top 3 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 April 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$529Average$974FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$640Average$902FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$643Average$1,077FlexibilityNo cancel feeOn-time70%

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