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Cheap flights from Baltimore to Portugal from $344

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Baltimore to Portugal departing on 5/9. 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
0 bags

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Find the cheapest flights from Baltimore to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
8:30 pm - 2:55 pm
BWI
-
LIS
13h 25m
1 stop
Icelandair Logo
3:25 pm - 7:25 pm
LIS
-
BWI
33h 00m
1 stop
$630Icelandair
Wed, Apr 15 - Thu, Apr 30
Icelandair Logo
8:30 pm - 2:55 pm
BWI
-
LIS
13h 25m
1 stop
Icelandair Logo
10:20 pm - 7:25 pm
LIS
-
BWI
26h 05m
1 stop
$635Icelandair
Wed, Apr 22 - Sun, Apr 26
Icelandair Logo
11:20 pm - 9:20 pm
BWI
-
LIS
17h 00m
1 stop
Icelandair Logo
3:55 pm - 7:25 pm
LIS
-
BWI
32h 30m
1 stop
$644Icelandair
Sat, Apr 11 - Thu, Apr 16
Scandinavian Airlines Logo
9:00 am - 8:40 pm
BWI
-
LIS
30h 40m
2 stops
Scandinavian Airlines Logo
6:15 pm - 12:16 am
LIS
-
BWI
35h 01m
2 stops
$717Scandinavian Airlines
Mon, Aug 31 - Wed, Sep 9
British Airways Logo
9:30 pm - 11:15 pm
BWI
-
LIS
20h 45m
1 stop
British Airways Logo
7:20 am - 7:40 pm
LIS
-
BWI
17h 20m
1 stop
$720British Airways
Wed, Apr 22 - Wed, Apr 29
Multiple Airlines Logo
9:00 am - 3:35 pm
BWI
-
LIS
25h 35m
2 stops
Multiple Airlines Logo
9:15 pm - 10:13 pm
LIS
-
BWI
29h 58m
2 stops
$722Multiple Airlines
Tue, Sep 8 - Tue, Sep 15
Multiple Airlines Logo
9:00 am - 8:40 pm
BWI
-
LIS
30h 40m
2 stops
Multiple Airlines Logo
9:15 pm - 10:10 pm
LIS
-
BWI
29h 55m
2 stops
$728Multiple Airlines
Mon, Sep 28 - Tue, Oct 6
Scandinavian Airlines Logo
1:00 pm - 3:35 pm
BWI
-
LIS
21h 35m
2 stops
Scandinavian Airlines Logo
9:15 pm - 10:13 pm
LIS
-
BWI
29h 58m
2 stops
$738Scandinavian Airlines
Tue, Sep 8 - Tue, Sep 15
Delta Logo
5:37 pm - 3:25 pm
BWI
-
OPO
16h 48m
2 stops
Delta Logo
5:00 am - 7:16 pm
OPO
-
BWI
19h 16m
2 stops
$807Delta
Mon, Apr 27 - Tue, May 5
Delta Logo
3:33 pm - 3:30 pm
BWI
-
OPO
18h 57m
2 stops
Delta Logo
5:00 am - 10:49 pm
OPO
-
BWI
22h 49m
2 stops
$811Delta
Wed, Apr 29 - Fri, May 8

Scandinavian Airlines flights from Baltimore to Portugal

Our best Scandinavian Airlines deals on Baltimore to Portugal flight tickets
Scandinavian Airlines
Aug 31
BWI9:00 amBaltimore/Washington
30h 40m
2 stops
LIS8:40 pmLisbon Humberto Delgado
Sep 9
LIS6:15 pmLisbon Humberto Delgado
35h 01m
2 stops
BWI12:16 amBaltimore/Washington
$717
Scandinavian Airlines
Sep 8
BWI1:00 pmBaltimore/Washington
21h 35m
2 stops
LIS3:35 pmLisbon Humberto Delgado
Sep 15
LIS9:15 pmLisbon Humberto Delgado
29h 58m
2 stops
BWI10:13 pmBaltimore/Washington
$738
Scandinavian Airlines
Aug 31
BWI4:39 pmBaltimore/Washington
23h 01m
2 stops
LIS8:40 pmLisbon Humberto Delgado
Sep 9
LIS7:15 amLisbon Humberto Delgado
19h 58m
2 stops
BWI10:13 pmBaltimore/Washington
$739

British Airways flights from Baltimore to Portugal

Our best British Airways deals on Baltimore to Portugal flight tickets
British Airways
Apr 22
BWI9:30 pmBaltimore/Washington
20h 45m
1 stop
LIS11:15 pmLisbon Humberto Delgado
Apr 29
LIS7:20 amLisbon Humberto Delgado
17h 20m
1 stop
BWI7:40 pmBaltimore/Washington
$720
British Airways
Apr 16
BWI9:30 pmBaltimore/Washington
31h 35m
1 stop
LIS10:05 amLisbon Humberto Delgado
Apr 22
LIS6:45 pmLisbon Humberto Delgado
29h 55m
1 stop
BWI7:40 pmBaltimore/Washington
$777
British Airways
Apr 24
BWI9:30 pmBaltimore/Washington
20h 40m
1 stop
LIS11:10 pmLisbon Humberto Delgado
May 1
LIS7:20 amLisbon Humberto Delgado
17h 20m
1 stop
BWI7:40 pmBaltimore/Washington
$779

momondo Fare Finder

 
Customize your flight search to find flights from Baltimore 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 April 1, 2026.
Use the filters below to find and compare flights from Baltimore to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Wed 4/15

8:30 pm-2:55 pm

1 stop13h 25m

Lisbon Humberto Delgado

Thu 4/30

3:25 pm-7:25 pm

1 stop33h 00m

$630

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Wed 4/22

8:30 pm-2:55 pm

1 stop13h 25m

Lisbon Humberto Delgado

Sun 4/26

10:20 pm-7:25 pm

1 stop26h 05m

$635

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Sat 4/11

11:20 pm-9:20 pm

1 stop17h 00m

Lisbon Humberto Delgado

Thu 4/16

3:55 pm-7:25 pm

1 stop32h 30m

$644

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Mon 8/31

9:00 am-8:40 pm

2 stops30h 40m

Lisbon Humberto Delgado

Wed 9/9

6:15 pm-12:16 am

2 stops35h 01m

$717

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Wed 4/22

9:30 pm-11:15 pm

1 stop20h 45m

Lisbon Humberto Delgado

Wed 4/29

7:20 am-7:40 pm

1 stop17h 20m

$720

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Tue 9/8

9:00 am-3:35 pm

2 stops25h 35m

Lisbon Humberto Delgado

Tue 9/15

9:15 pm-10:13 pm

2 stops29h 58m

$722

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Mon 9/28

9:00 am-8:40 pm

2 stops30h 40m

Lisbon Humberto Delgado

Tue 10/6

9:15 pm-10:10 pm

2 stops29h 55m

$728

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Tue 9/8

1:00 pm-3:35 pm

2 stops21h 35m

Lisbon Humberto Delgado

Tue 9/15

9:15 pm-10:13 pm

2 stops29h 58m

$738
Quickest round-trip

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Mon 4/27

5:37 pm-3:25 pm

2 stops16h 48m

Porto

Tue 5/5

5:00 am-7:16 pm

2 stops19h 16m

$807

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Wed 4/29

3:33 pm-3:30 pm

2 stops18h 57m

Porto

Fri 5/8

5:00 am-10:49 pm

2 stops22h 49m

$811

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 Baltimore 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 Baltimore is in May. Flight prices, which tend to average around $417, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of May, then book flights to Portugal from Baltimore during February instead. Flights to Portugal in February, while not as cheap as those in May, still average around $640.

Can stopping save me money on Baltimore to Portugal flights?

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

Cheap Baltimore to Portugal flight deals and tips

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

Fastest flight time

10h 15m

Direct flights

None
The fastest flight from Baltimore to Portugal takes 10h 15m
There are no direct flights from Baltimore to Portugal. There are no popular flight routes from Baltimore to Portugal.
Search flight deals

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

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

  • How many operators does momondo search for flights from Baltimore/Washington Airport to Portugal?

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Baltimore/Washington Airport to Portugal.

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

    The travel and health documents you'll need for your trip to Portugal may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portugal. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Baltimore to Portugal

Compare and see reviews for airlines that fly from Baltimore to Portugal with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $529Free CancellationRating
7.9
8,365 reviews
Search Delta flights
KLMPriceFrom $548Free CancellationRating
7.8
1,481 reviews
Search KLM flights
TAP AIR PORTUGALPriceFrom $640Free CancellationRating
7.1
2,185 reviews
Search TAP AIR PORTUGAL flights
British AirwaysPriceFrom $643Free CancellationRating
6.7
7,841 reviews
Search British Airways flights

Why use momondo?

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

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 Baltimore to Portugal for you.

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

Flights from Baltimore to Portugal with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo helps you find the best flight between Baltimore and Portugal by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Portugal from Baltimore are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Portugal trip

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