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Cheap flights from Maryland to Portugal from $310

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Maryland to Portugal departing on 4/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Maryland to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
5:15 pm - 10:35 am
IAD
-
FAO
12h 20m
1 stop
Aer Lingus Logo
11:45 am - 7:35 pm
FAO
-
IAD
12h 50m
1 stop
$442Aer Lingus
Tue, Apr 21 - Tue, Apr 28
Aer Lingus Logo
5:15 pm - 10:35 am
IAD
-
FAO
12h 20m
1 stop
Aer Lingus Logo
11:45 am - 7:35 pm
FAO
-
IAD
12h 50m
1 stop
$497Aer Lingus
Tue, Apr 21 - Tue, Apr 28
Turkish Airlines Logo
9:45 pm - 3:40 pm
IAD
-
OPO
36h 55m
1 stop
Turkish Airlines Logo
10:40 am - 7:50 pm
OPO
-
IAD
38h 10m
1 stop
$589Turkish Airlines
Tue, Apr 14 - Fri, Apr 24
Turkish Airlines Logo
9:45 pm - 11:30 pm
IAD
-
OPO
20h 45m
1 stop
Turkish Airlines Logo
6:10 am - 7:50 pm
OPO
-
IAD
18h 40m
1 stop
$594Turkish Airlines
Sat, Apr 25 - Thu, May 7
TAP AIR PORTUGAL Logo
10:35 pm - 5:10 pm
IAD
-
OPO
13h 35m
1 stop
TAP AIR PORTUGAL Logo
9:00 am - 3:10 pm
OPO
-
IAD
11h 10m
1 stop
$604TAP AIR PORTUGAL
Tue, Aug 18 - Fri, Aug 28
Scandinavian Airlines Logo
8:20 pm - 3:50 pm
IAD
-
LIS
14h 30m
1 stop
Scandinavian Airlines Logo
5:00 pm - 5:00 pm
LIS
-
IAD
29h 00m
1 stop
$604Scandinavian Airlines
Mon, Apr 20 - Wed, Apr 29
SWISS Logo
8:20 pm - 6:20 pm
IAD
-
FAO
17h 00m
1 stop
SWISS Logo
7:05 pm - 4:45 pm
FAO
-
IAD
26h 40m
1 stop
$604SWISS
Mon, Apr 13 - Wed, Apr 29
TAP AIR PORTUGAL Logo
5:45 pm - 10:10 am
IAD
-
OPO
11h 25m
1 stop
TAP AIR PORTUGAL Logo
9:00 am - 3:10 pm
OPO
-
IAD
11h 10m
1 stop
$608TAP AIR PORTUGAL
Wed, Aug 19 - Fri, Aug 28
SWISS Logo
8:20 pm - 6:20 pm
IAD
-
FAO
17h 00m
1 stop
SWISS Logo
7:05 pm - 4:45 pm
FAO
-
IAD
26h 40m
1 stop
$625SWISS
Tue, Apr 21 - Tue, Apr 28
Scandinavian Airlines Logo
6:00 am - 3:50 pm
DCA
-
LIS
28h 50m
2 stops
Scandinavian Airlines Logo
5:00 pm - 10:41 pm
LIS
-
DCA
34h 41m
2 stops
$716Scandinavian Airlines
Mon, Apr 20 - Wed, Apr 29

Turkish Airlines flights from Maryland to Portugal

Our best Turkish Airlines deals on Maryland to Portugal flight tickets
Turkish Airlines
Apr 14
IAD9:45 pmWashington, D.C. Dulles Intl
36h 55m
1 stop
OPO3:40 pmPorto
Apr 24
OPO10:40 amPorto
38h 10m
1 stop
IAD7:50 pmWashington, D.C. Dulles Intl
$589
Turkish Airlines
Apr 25
IAD9:45 pmWashington, D.C. Dulles Intl
20h 45m
1 stop
OPO11:30 pmPorto
May 7
OPO6:10 amPorto
18h 40m
1 stop
IAD7:50 pmWashington, D.C. Dulles Intl
$594
Turkish Airlines
Apr 16
IAD1:20 pmWashington, D.C. Dulles Intl
21h 25m
1 stop
LIS3:45 pmLisbon Humberto Delgado
Apr 21
LIS10:55 amLisbon Humberto Delgado
29h 40m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$597

TAP AIR PORTUGAL flights from Maryland to Portugal

Our best TAP AIR PORTUGAL deals on Maryland to Portugal flight tickets
TAP AIR PORTUGAL
Aug 18
IAD10:35 pmWashington, D.C. Dulles Intl
13h 35m
1 stop
OPO5:10 pmPorto
Aug 28
OPO9:00 amPorto
11h 10m
1 stop
IAD3:10 pmWashington, D.C. Dulles Intl
$604
TAP AIR PORTUGAL
Aug 19
IAD5:45 pmWashington, D.C. Dulles Intl
11h 25m
1 stop
OPO10:10 amPorto
Aug 28
OPO9:00 amPorto
11h 10m
1 stop
IAD3:10 pmWashington, D.C. Dulles Intl
$608
TAP AIR PORTUGAL
Aug 16
IAD10:35 pmWashington, D.C. Dulles Intl
11h 25m
1 stop
OPO3:00 pmPorto
Aug 30
OPO6:00 pmPorto
26h 10m
1 stop
IAD3:10 pmWashington, D.C. Dulles Intl
$613

momondo 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, momondo users made 832,500 searches. Data last updated March 24, 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

Tue 4/21

5:15 pm-10:35 am

1 stop12h 20m

Faro

Tue 4/28

11:45 am-7:35 pm

1 stop12h 50m

$442

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Tue 4/21

5:15 pm-10:35 am

1 stop12h 20m

Faro

Tue 4/28

11:45 am-7:35 pm

1 stop12h 50m

$497

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Tue 4/14

9:45 pm-3:40 pm

1 stop36h 55m

Porto

Fri 4/24

10:40 am-7:50 pm

1 stop38h 10m

$589

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sat 4/25

9:45 pm-11:30 pm

1 stop20h 45m

Porto

Thu 5/7

6:10 am-7:50 pm

1 stop18h 40m

$594

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Tue 8/18

10:35 pm-5:10 pm

1 stop13h 35m

Porto

Fri 8/28

9:00 am-3:10 pm

1 stop11h 10m

$604

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Mon 4/20

8:20 pm-3:50 pm

1 stop14h 30m

Lisbon Humberto Delgado

Wed 4/29

5:00 pm-5:00 pm

1 stop29h 00m

$604

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Mon 4/13

8:20 pm-6:20 pm

1 stop17h 00m

Faro

Wed 4/29

7:05 pm-4:45 pm

1 stop26h 40m

$604
Quickest round-trip

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 8/19

5:45 pm-10:10 am

1 stop11h 25m

Porto

Fri 8/28

9:00 am-3:10 pm

1 stop11h 10m

$608

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Tue 4/21

8:20 pm-6:20 pm

1 stop17h 00m

Faro

Tue 4/28

7:05 pm-4:45 pm

1 stop26h 40m

$625

Washington, D.C.Lisbon

DCA - LIS

DCALIS

Washington, D.C. Reagan-National

Mon 4/20

6:00 am-3:50 pm

2 stops28h 50m

Lisbon Humberto Delgado

Wed 4/29

5:00 pm-10:41 pm

2 stops34h 41m

$716

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portugal from

How to get the cheapest flight ticket from Maryland to Portugal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Portugal?

The cheapest month to fly to Portugal from Maryland is in January. Flight prices, which tend to average around $682, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Portugal from Maryland during February instead. Flights to Portugal in February, while not as cheap as those in January, still average around $690.

How far in advance should I book a flight to Portugal?

You are more likely to see cheaper flights to Portugal from Maryland when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $926 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Maryland for as low as $725 on momondo.

Can stopping save me money on Maryland to Portugal flights?

You could potentially save up to 8% on your flight if you consider stops on a Maryland to Portugal flight.

Cheap Maryland to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Maryland to Portugal

Fastest flight time

6h 40m

Direct flights

Every day

Airports in Portugal

99 airports
The fastest flight from Maryland to Portugal takes 6h 40m
Direct flights go from Maryland to Portugal every day.
There are 99 airports in Portugal. From Maryland there are direct flights to Lisbon Humberto Delgado (LIS).
Search flight deals

  • When did momondo last update prices for flights from Maryland to Portugal?

    Prices for flights from Maryland to Portugal are refreshed on a daily basis.

  • How many operators does momondo search for flights from Maryland to Portugal?

  • How old do you have to be to fly from Maryland to Portugal?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Maryland to Portugal.

  • What documentation or ID do you need to fly to Portugal?

    The travel and health documents required for your trip to Portugal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Maryland to Portugal

Compare and see reviews for airlines that fly from Maryland to Portugal with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $529Free CancellationRating
7.9
8,326 reviews
Search Delta flights
KLMPriceFrom $548Free CancellationRating
7.8
1,477 reviews
Search KLM flights
British AirwaysPriceFrom $643Free CancellationRating
6.7
7,818 reviews
Search British Airways flights
TAP AIR PORTUGALPriceFrom $680Free CancellationRating
7.1
2,176 reviews
Search TAP AIR PORTUGAL flights

Why use momondo?

Why should I use momondo to find a flight deal from Maryland to Portugal?

It is quick and easy to find Maryland to Portugal flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Portugal that suits you.

Can I find flights from Maryland to Portugal with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Maryland to Portugal flights to just show those with flexible booking policies.

How can momondo help me find flights from Maryland to Portugal?

Once all potential Maryland to Portugal flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Maryland to Portugal right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Maryland to Portugal flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo
Flights to Lisbonfrom $524
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Flights to Velasfrom $595