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Cheap flights from Portugal to Washington, D.C. from $345

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portugal to Washington, D.C. departing on 9/9. 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

Find the cheapest flights from Portugal to Washington, D.C.

Recent round-trip flight deals from Portugal to Washington, D.C.

Enter your travel dates to find the best prices.
Delta Logo
5:00 am - 5:47 pm
OPO
-
BWI
17h 47m
2 stops
Delta Logo
6:27 pm - 3:25 pm
BWI
-
OPO
15h 58m
2 stops
$662Delta
Mon, Aug 31 - Mon, Sep 7
Multiple Airlines Logo
7:10 am - 7:40 pm
LIS
-
BWI
17h 30m
1 stop
Multiple Airlines Logo
8:35 pm - 2:55 pm
BWI
-
LIS
13h 20m
1 stop
$662Multiple Airlines
Mon, Oct 19 - Mon, Nov 9
Icelandair Logo
3:00 pm - 10:15 pm
LIS
-
BWI
12h 15m
1 stop
Icelandair Logo
8:30 pm - 1:50 pm
BWI
-
LIS
12h 20m
1 stop
$669Icelandair
Sun, Sep 20 - Mon, Oct 5
Icelandair Logo
3:00 pm - 10:15 pm
LIS
-
BWI
12h 15m
1 stop
Icelandair Logo
8:30 pm - 1:50 pm
BWI
-
LIS
12h 20m
1 stop
$675Icelandair
Sun, Sep 20 - Wed, Sep 30
United Airlines Logo
5:00 am - 6:49 pm
LIS
-
BWI
18h 49m
2 stops
United Airlines Logo
6:10 am - 8:10 am
BWI
-
LIS
45h 00m
2 stops
$699United Airlines
Sat, Nov 7 - Tue, Nov 10
United Airlines Logo
5:00 am - 6:49 pm
LIS
-
BWI
18h 49m
2 stops
United Airlines Logo
5:21 pm - 8:10 am
BWI
-
LIS
33h 49m
2 stops
$700United Airlines
Sat, Nov 7 - Tue, Nov 10
American Airlines Logo
8:20 am - 9:54 pm
OPO
-
BWI
18h 34m
2 stops
American Airlines Logo
11:50 am - 7:40 am
BWI
-
OPO
14h 50m
2 stops
$731American Airlines
Sat, Nov 7 - Wed, Nov 11
American Airlines Logo
8:20 am - 9:54 pm
OPO
-
BWI
18h 34m
2 stops
American Airlines Logo
11:50 am - 7:40 am
BWI
-
OPO
14h 50m
2 stops
$732American Airlines
Sat, Nov 7 - Wed, Nov 11
British Airways Logo
9:25 pm - 5:15 pm
OPO
-
BWI
24h 50m
1 stop
British Airways Logo
9:35 pm - 8:35 pm
BWI
-
OPO
18h 00m
1 stop
$744British Airways
Fri, Sep 4 - Sun, Sep 20
British Airways Logo
8:55 pm - 5:15 pm
OPO
-
BWI
25h 20m
1 stop
British Airways Logo
9:30 pm - 8:05 pm
BWI
-
OPO
17h 35m
1 stop
$745British Airways
Tue, Sep 22 - Mon, Sep 28

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Delta flights from Portugal to Baltimore

Our best Delta deals on Portugal to Baltimore flight tickets
Delta
Aug 31
OPO5:00 amPorto
17h 47m
2 stops
BWI5:47 pmBaltimore/Washington
Sep 7
BWI6:27 pmBaltimore/Washington
15h 58m
2 stops
OPO3:25 pmPorto
$662
Delta
Nov 5
LIS5:00 amLisbon Humberto Delgado
17h 50m
2 stops
BWI5:50 pmBaltimore/Washington
Nov 9
BWI1:00 pmBaltimore/Washington
15h 00m
1 stop
LIS9:00 amLisbon Humberto Delgado
$672
Delta
Aug 26
LIS5:00 amLisbon Humberto Delgado
21h 13m
2 stops
BWI9:13 pmBaltimore/Washington
Sep 2
BWI10:40 amBaltimore/Washington
19h 15m
2 stops
LIS10:55 amLisbon Humberto Delgado
$677

British Airways flights from Portugal to Baltimore

Our best British Airways deals on Portugal to Baltimore flight tickets
British Airways
Dec 25
LIS7:05 amLisbon Humberto Delgado
16h 40m
1 stop
BWI6:45 pmBaltimore/Washington
Jan 2
BWI8:35 pmBaltimore/Washington
13h 15m
1 stop
LIS2:50 pmLisbon Humberto Delgado
$719
British Airways
Sep 21
LIS7:10 amLisbon Humberto Delgado
17h 30m
1 stop
BWI7:40 pmBaltimore/Washington
Oct 4
BWI9:35 pmBaltimore/Washington
15h 10m
1 stop
LIS5:45 pmLisbon Humberto Delgado
$743
British Airways
Sep 4
OPO9:25 pmPorto
24h 50m
1 stop
BWI5:15 pmBaltimore/Washington
Sep 20
BWI9:35 pmBaltimore/Washington
18h 00m
1 stop
OPO8:35 pmPorto
$744

momondo Fare Finder

 
Customize your flight search to find flights from Portugal to Baltimore 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 July 14, 2026.
Use the filters below to find and compare flights from Portugal to Baltimore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Mon 8/31

5:00 am-5:47 pm

2 stops17h 47m

Baltimore/Washington

Mon 9/7

6:27 pm-3:25 pm

2 stops15h 58m

$662

LisbonBaltimore

LIS - BWI

LISBWI

Lisbon Humberto Delgado

Mon 10/19

7:10 am-7:40 pm

1 stop17h 30m

Baltimore/Washington

Mon 11/9

8:35 pm-2:55 pm

1 stop13h 20m

$662
Quickest round-trip

LisbonBaltimore

LIS - BWI

LISBWI

Lisbon Humberto Delgado

Sun 9/20

3:00 pm-10:15 pm

1 stop12h 15m

Baltimore/Washington

Mon 10/5

8:30 pm-1:50 pm

1 stop12h 20m

$669

LisbonBaltimore

LIS - BWI

LISBWI

Lisbon Humberto Delgado

Sun 9/20

3:00 pm-10:15 pm

1 stop12h 15m

Baltimore/Washington

Wed 9/30

8:30 pm-1:50 pm

1 stop12h 20m

$675

LisbonBaltimore

LIS - BWI

LISBWI

Lisbon Humberto Delgado

Sat 11/7

5:00 am-6:49 pm

2 stops18h 49m

Baltimore/Washington

Tue 11/10

6:10 am-8:10 am

2 stops45h 00m

$699

LisbonBaltimore

LIS - BWI

LISBWI

Lisbon Humberto Delgado

Sat 11/7

5:00 am-6:49 pm

2 stops18h 49m

Baltimore/Washington

Tue 11/10

5:21 pm-8:10 am

2 stops33h 49m

$700

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Sat 11/7

8:20 am-9:54 pm

2 stops18h 34m

Baltimore/Washington

Wed 11/11

11:50 am-7:40 am

2 stops14h 50m

$731

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Sat 11/7

8:20 am-9:54 pm

2 stops18h 34m

Baltimore/Washington

Wed 11/11

11:50 am-7:40 am

2 stops14h 50m

$732

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Fri 9/4

9:25 pm-5:15 pm

1 stop24h 50m

Baltimore/Washington

Sun 9/20

9:35 pm-8:35 pm

1 stop18h 00m

$744

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Tue 9/22

8:55 pm-5:15 pm

1 stop25h 20m

Baltimore/Washington

Mon 9/28

9:30 pm-8:05 pm

1 stop17h 35m

$745

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 Washington, D.C. from

How to get the cheapest flight ticket from Portugal to Baltimore

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

Can stopping save me money on Portugal to Baltimore flights?

You could potentially save up to 21% on your flight if you consider stops on a Portugal to Baltimore flight.

Cheap Portugal to Baltimore flight deals and tips

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

Fastest flight time

15h 05m

Direct flights

None
The fastest flight from Portugal to Baltimore takes 15h 05m
There are no direct flights from Portugal to Baltimore. There are no popular flight routes from Portugal to Baltimore.
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Frequently asked questions about flying from Portugal to Baltimore

  • When did momondo last update prices for flights from Portugal to Baltimore/Washington Airport?

    Prices for flights from Portugal to Baltimore/Washington Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Portugal to Baltimore/Washington Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portugal to Baltimore/Washington Airport.

  • What documentation or ID do you need to fly to Baltimore/Washington Airport?

    The travel and health documents required for your trip to Baltimore/Washington Airport 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 Baltimore/Washington Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Portugal to Baltimore for you.

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

Yes. All flights to Baltimore from Portugal on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Portugal to Baltimore 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 Portugal to Baltimore right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Baltimore from Portugal. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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