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Cheap flights from Maryland to Portugal from $342

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 6/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Icelandair Logo
8:40 pm - 12:50 pm
BWI
-
LIS
12h 10m
1 stop
Icelandair Logo
2:00 pm - 6:40 pm
LIS
-
BWI
33h 40m
1 stop
$624Icelandair
Sat, Oct 31 - Sun, Nov 15
Icelandair Logo
8:40 pm - 12:50 pm
BWI
-
LIS
12h 10m
1 stop
Icelandair Logo
2:00 pm - 6:40 pm
LIS
-
BWI
33h 40m
1 stop
$647Icelandair
Sat, Oct 31 - Tue, Nov 17
American Airlines Logo
9:35 pm - 9:45 pm
BWI
-
LIS
20h 10m
1 stop
American Airlines Logo
6:30 am - 7:30 pm
LIS
-
BWI
18h 00m
2 stops
$713American Airlines
Sun, Oct 25 - Wed, Nov 4
American Airlines Logo
3:54 pm - 12:05 pm
BWI
-
LIS
16h 11m
2 stops
American Airlines Logo
6:30 am - 7:30 pm
LIS
-
BWI
18h 00m
2 stops
$717American Airlines
Sun, Oct 25 - Wed, Nov 4
British Airways Logo
9:35 pm - 5:45 pm
BWI
-
LIS
16h 10m
1 stop
British Airways Logo
10:40 am - 6:45 pm
LIS
-
BWI
13h 05m
1 stop
$721British Airways
Sun, Oct 25 - Wed, Nov 4
Turkish Airlines Logo
9:45 pm - 3:40 pm
IAD
-
OPO
36h 55m
1 stop
Turkish Airlines Logo
4:50 pm - 11:35 am
OPO
-
IAD
23h 45m
1 stop
$724Turkish Airlines
Tue, Sep 8 - Tue, Sep 15
Multiple Airlines Logo
8:35 pm - 2:50 pm
BWI
-
LIS
13h 15m
1 stop
Multiple Airlines Logo
9:05 pm - 6:45 pm
LIS
-
BWI
26h 40m
2 stops
$725Multiple Airlines
Wed, Nov 4 - Mon, Nov 9
British Airways Logo
8:35 pm - 2:50 pm
BWI
-
LIS
13h 15m
1 stop
British Airways Logo
6:35 pm - 6:45 pm
LIS
-
BWI
29h 10m
1 stop
$726British Airways
Sun, Nov 1 - Mon, Nov 9
Turkish Airlines Logo
9:45 pm - 3:40 pm
IAD
-
OPO
36h 55m
1 stop
Turkish Airlines Logo
10:40 am - 11:35 am
OPO
-
IAD
29h 55m
1 stop
$744Turkish Airlines
Thu, Sep 17 - Mon, Sep 21
Multiple Airlines Logo
12:49 pm - 7:00 am
IAD
-
OPO
13h 11m
2 stops
Multiple Airlines Logo
6:00 am - 4:50 pm
OPO
-
IAD
14h 50m
1 stop
$767Multiple Airlines
Mon, Oct 19 - Tue, Oct 27

American Airlines flights from Maryland to Portugal

Our best American Airlines deals on Maryland to Portugal flight tickets
American Airlines
Oct 25
BWI9:35 pmBaltimore/Washington
20h 10m
1 stop
LIS9:45 pmLisbon Humberto Delgado
Nov 4
LIS6:30 amLisbon Humberto Delgado
18h 00m
2 stops
BWI7:30 pmBaltimore/Washington
$713
American Airlines
Oct 25
BWI3:54 pmBaltimore/Washington
16h 11m
2 stops
LIS12:05 pmLisbon Humberto Delgado
Nov 4
LIS6:30 amLisbon Humberto Delgado
18h 00m
2 stops
BWI7:30 pmBaltimore/Washington
$717
American Airlines
Nov 3
PHL9:25 pmPhiladelphia
6h 40m
LIS9:05 amLisbon Humberto Delgado
Nov 9
LIS10:35 amLisbon Humberto Delgado
32h 15m
1 stop
PHL1:50 pmPhiladelphia
$907

British Airways flights from Maryland to Portugal

Our best British Airways deals on Maryland to Portugal flight tickets
British Airways
Oct 25
BWI9:35 pmBaltimore/Washington
16h 10m
1 stop
LIS5:45 pmLisbon Humberto Delgado
Nov 4
LIS10:40 amLisbon Humberto Delgado
13h 05m
1 stop
BWI6:45 pmBaltimore/Washington
$721
British Airways
Nov 1
BWI8:35 pmBaltimore/Washington
13h 15m
1 stop
LIS2:50 pmLisbon Humberto Delgado
Nov 9
LIS6:35 pmLisbon Humberto Delgado
29h 10m
1 stop
BWI6:45 pmBaltimore/Washington
$726
British Airways
Nov 1
BWI8:35 pmBaltimore/Washington
13h 15m
1 stop
LIS2:50 pmLisbon Humberto Delgado
Nov 11
LIS7:05 amLisbon Humberto Delgado
16h 40m
1 stop
BWI6:45 pmBaltimore/Washington
$731

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 May 12, 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

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Sat 10/31

8:40 pm-12:50 pm

1 stop12h 10m

Lisbon Humberto Delgado

Sun 11/15

2:00 pm-6:40 pm

1 stop33h 40m

$624

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Sat 10/31

8:40 pm-12:50 pm

1 stop12h 10m

Lisbon Humberto Delgado

Tue 11/17

2:00 pm-6:40 pm

1 stop33h 40m

$647

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Sun 10/25

9:35 pm-9:45 pm

1 stop20h 10m

Lisbon Humberto Delgado

Wed 11/4

6:30 am-7:30 pm

2 stops18h 00m

$713

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Sun 10/25

3:54 pm-12:05 pm

2 stops16h 11m

Lisbon Humberto Delgado

Wed 11/4

6:30 am-7:30 pm

2 stops18h 00m

$717

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Sun 10/25

9:35 pm-5:45 pm

1 stop16h 10m

Lisbon Humberto Delgado

Wed 11/4

10:40 am-6:45 pm

1 stop13h 05m

$721

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Tue 9/8

9:45 pm-3:40 pm

1 stop36h 55m

Porto

Tue 9/15

4:50 pm-11:35 am

1 stop23h 45m

$724

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Wed 11/4

8:35 pm-2:50 pm

1 stop13h 15m

Lisbon Humberto Delgado

Mon 11/9

9:05 pm-6:45 pm

2 stops26h 40m

$725

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Sun 11/1

8:35 pm-2:50 pm

1 stop13h 15m

Lisbon Humberto Delgado

Mon 11/9

6:35 pm-6:45 pm

1 stop29h 10m

$726

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Thu 9/17

9:45 pm-3:40 pm

1 stop36h 55m

Porto

Mon 9/21

10:40 am-11:35 am

1 stop29h 55m

$744
Quickest round-trip

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 10/19

12:49 pm-7:00 am

2 stops13h 11m

Porto

Tue 10/27

6:00 am-4:50 pm

1 stop14h 50m

$767

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 October. Flight prices, which tend to average around $396, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of October, then book flights to Portugal from Maryland during September instead. Flights to Portugal in September, while not as cheap as those in October, still average around $414.

How far in advance should I book a flight from Maryland 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 $949 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 $848 on momondo.

Can stopping save me money on Maryland to Portugal flights?

You could potentially save up to 16% 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

Frequently asked questions about flying from Maryland to Portugal

  • 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
8,451 reviews
Search Delta flights
TAP AIR PORTUGALPriceFrom $640Free CancellationRating
7.2
2,250 reviews
Search TAP AIR PORTUGAL flights
British AirwaysPriceFrom $781Free CancellationRating
6.7
7,975 reviews
Search British Airways 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

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Popular flights according to clicks in the last 7 days on momondo
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