HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portugal

$320+ Cheap flights from Baltimore (BWI) 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — LIS
Apr 23 — Apr 301
Thu 4/23
Thu 4/30
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Baltimore to Portugal with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Baltimore to Portugal

Cheapest flights from Baltimore to Portugal
Explore the most affordable flight options available from Baltimore to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 24, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 3/24. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/129:35 pm
BWI
-
LIS
1 stop20h 30m
British Airways
Wed 4/227:20 am
LIS
-
BWI
1 stop17h 20m
British Airways
Deal found 3/24$672
This oojo deal was found by Cheapflights users on 3/24. 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.
Tue 11/108:35 pm
BWI
-
LIS
1 stop13h 10m
British Airways
Wed 11/1812:55 pm
LIS
-
BWI
1 stop34h 50m
British Airways
Deal found 3/24$674
This British Airways deal was found by Cheapflights users on 3/24. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/139:30 pm
BWI
-
LIS
1 stop20h 40m
British Airways
Wed 4/224:25 pm
LIS
-
BWI
1 stop32h 15m
British Airways
Deal found 3/24$679
This Booking.com deal was found by Cheapflights users on 3/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/219:30 pm
BWI
-
LIS
1 stop15h 25m
British Airways
Tue 4/286:45 pm
LIS
-
BWI
1 stop29h 55m
British Airways
Deal found 3/24$693
This United Airlines deal was found by Cheapflights users on 3/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:17 am
BWI
-
OPO
2 stops19h 43m
United Airlines
Wed 11/412:30 pm
OPO
-
BWI
2 stops17h 08m
United Airlines
Deal found 3/23$695
This United Airlines deal was found by Cheapflights users on 3/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:15 am
BWI
-
OPO
2 stops20h 30m
United Airlines
Thu 11/512:35 pm
OPO
-
BWI
2 stops17h 03m
United Airlines
Deal found 3/23$705
This Cheapflightsfares deal was found by Cheapflights users on 3/24. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/179:30 pm
BWI
-
LIS
1 stop15h 30m
British Airways
Fri 4/247:20 am
LIS
-
BWI
1 stop17h 20m
British Airways
Deal found 3/24$719
This Booking.com deal was found by Cheapflights users on 3/23. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/289:35 pm
BWI
-
OPO
1 stop16h 15m
Multiple Airlines
Wed 11/48:40 pm
OPO
-
BWI
2 stops27h 05m
Multiple Airlines
Deal found 3/23$720
This FlightHub deal was found by Cheapflights users on 3/22. 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 10/139:00 am
BWI
-
LIS
2 stops25h 35m
Multiple Airlines
Tue 10/209:15 pm
LIS
-
BWI
2 stops29h 55m
Multiple Airlines
Deal found 3/22$722
This American Airlines deal was found by Cheapflights users on 3/24. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:35 pm
BWI
-
LIS
1 stop16h 05m
American Airlines
Wed 11/1811:05 am
LIS
-
BWI
2 stops13h 25m
American Airlines
Deal found 3/24$723
This oojo deal was found by Cheapflights users on 3/24. 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.
Thu 11/58:35 pm
BWI
-
LIS
1 stop13h 10m
British Airways
Wed 11/113:55 pm
LIS
-
BWI
1 stop31h 50m
British Airways
Deal found 3/24$724
This United Airlines deal was found by Cheapflights users on 3/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:17 am
BWI
-
OPO
2 stops24h 23m
United Airlines
Thu 11/512:35 pm
OPO
-
BWI
2 stops17h 03m
United Airlines
Deal found 3/23$724

Find flight deals from Baltimore to Portugal

Keep the following information in mind while searching for Baltimore to Portugal flight deals. Data was last updated March 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$728
(FlightHub)

One-way from

$320
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$880
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 Baltimore/Washington to Portugal
Search Deals
One-way flight from Baltimore/Washington to Portugal
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($166 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 March 2026
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated March 24, 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

BaltimorePonta Delgada

BWI - PDL

BWIPDL

Baltimore/Washington

Fri 5/15

9:56 pm-6:20 am

1 stop28h 24m

Ponta Delgada Nordela

Mon 5/25

8:15 pm-8:07 am

2 stops39h 52m

$821

BaltimoreLajes

BWI - TER

BWITER

Baltimore/Washington

Mon 4/20

6:35 am-6:20 am

1 stop19h 45m

Lajes

Mon 4/27

4:55 pm-10:20 pm

2 stops33h 25m

$861

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Wed 4/15

7:26 pm-6:20 pm

2 stops17h 54m

Porto

Wed 4/22

5:00 am-6:17 pm

2 stops18h 17m

$863

BaltimorePonta Delgada

BWI - PDL

BWIPDL

Baltimore/Washington

Mon 6/1

7:30 am-9:20 am

2 stops21h 50m

Ponta Delgada Nordela

Thu 6/4

6:05 pm-7:11 am

1 stop17h 06m

$898

BaltimoreFaro

BWI - FAO

BWIFAO

Baltimore/Washington

Sun 8/23

6:15 am-9:50 am

2 stops22h 35m

Faro

Thu 8/27

11:40 am-9:34 am

2 stops26h 54m

$900

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Sun 5/10

9:51 am-7:40 am

2 stops16h 49m

Porto

Thu 5/21

9:55 am-7:40 pm

1 stop14h 45m

$926

BaltimoreLajes

BWI - TER

BWITER

Baltimore/Washington

Tue 5/5

9:56 pm-8:45 am

2 stops30h 49m

Lajes

Tue 5/12

6:05 pm-8:07 am

1 stop18h 02m

$973

BaltimoreFaro

BWI - FAO

BWIFAO

Baltimore/Washington

Tue 8/11

7:04 pm-9:50 am

2 stops33h 46m

Faro

Sat 8/22

11:40 am-9:34 am

2 stops26h 54m

$987

BaltimoreFaro

BWI - FAO

BWIFAO

Baltimore/Washington

Sat 8/1

7:10 pm-9:50 am

2 stops33h 40m

Faro

Sat 8/22

11:40 am-9:34 am

2 stops26h 54m

$987

BaltimoreLajes

BWI - TER

BWITER

Baltimore/Washington

Sun 4/12

8:39 pm-6:20 am

3 stops29h 41m

Lajes

Sat 4/18

7:20 pm-11:54 pm

2 stops32h 34m

$1,000

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/22

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

Best time to book a flight from Baltimore to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Baltimore 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 Baltimore to Portugal

What is the cheapest month to book a flight from Baltimore to Portugal?

Currently, July is the cheapest month in which you can book a flight from Baltimore to Portugal (average of $345). Flying from Baltimore to Portugal in September is currently the most expensive (average of $528). 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.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated March 24, 2026.
Get a feel of what it's like to fly with Delta,KLM, andTAP AIR PORTUGAL from Baltimore to Portugal by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,327 reviews

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Food

7.2

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,327 reviews
Delta
7.9
Good
8,327 reviews

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Food

7.2

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
KLM
7.8
Good
1,477 reviews
Delta
7.9
Good
8,327 reviews

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Food

7.2

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
TAP AIR PORTUGAL
7.1
Good
2,176 reviews
Delta
7.9
Good
8,327 reviews

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Food

7.2

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,817 reviews
Delta
7.9
Good
8,327 reviews

Boarding

8.1

Entertainment

7.8

Comfort

7.9

Food

7.2

Overall

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Baltimore to Portugal?

    Baltimore/Washington (BWI), located 8.5 mi from the city center, is the airport you fly out of when you book flights from Baltimore to Portugal.

  • How long is the flight from Baltimore to Portugal?

    There are many flights that can get you from Baltimore to Portugal in 15h 10m. Fly via KLM, United Airlines, or Delta to get the fastest option. There are 3493 mi between Baltimore and Portugal. This flight may include one or multiple stops.

  • What are the most popular routes from Baltimore to Portugal?

    Most travelers choose Baltimore/Washington - Lisbon Humberto Delgado, Baltimore/Washington - Porto or Baltimore/Washington - Ponta Delgada Nordela when deciding on the best route from Baltimore to Portugal.

  • Can I find deals for flights from Baltimore to Portugal that include hotel bookings?

    Yes. In addition to deals on Baltimore to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Baltimore to Portugal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Baltimore to Portugal.

  • Can I find deals for business class flights from Baltimore to Portugal?

    Yes. Cheapflights offers flight deals from Baltimore 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 Baltimore to Portugal?

    Currently, July is the cheapest month in which you can book a flight from Baltimore to Portugal (average of $345). Flying from Baltimore to Portugal in September is currently the most expensive (average of $528). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Baltimore to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Heathrow flights
Dulles Intl to Charles de Gaulle flights
Baltimore to Heathrow flights
Dulles Intl to Leonardo da Vinci/Fiumicino flights
Dulles Intl to Madrid flights
Dulles Intl to Lisbon flights
Dulles Intl to Dublin flights
Dulles Intl to Athens flights
Dulles Intl to Gatwick flights
Reagan-National to Heathrow flights
Dulles Intl to Stansted flights
Dulles Intl to Barcelona-El Prat flights
Dulles Intl to Istanbul flights
Philadelphia to Dublin flights
Baltimore to Gatwick flights
Philadelphia to Heathrow flights
Dulles Intl to Frankfurt flights
Dulles Intl to Amsterdam flights
Dulles Intl to Orly flights
Baltimore to Charles de Gaulle flights
Reagan-National to Charles de Gaulle flights
Reagan-National to Leonardo da Vinci/Fiumicino flights
Dulles Intl to Edinburgh flights
Philadelphia to Leonardo da Vinci/Fiumicino flights
Baltimore to Leonardo da Vinci/Fiumicino flights
Philadelphia to Charles de Gaulle flights
Reagan-National to Madrid flights
Baltimore to Madrid flights
Dulles Intl to Vicenza flights
Philadelphia to Athens flights
Dulles Intl to Keflavik Intl flights
Dulles Intl to Zurich flights
Baltimore to Dublin flights
Dulles Intl to Bruxelles-National flights
Baltimore to Lisbon flights
Baltimore to Athens flights
Dulles Intl to Munich flights
Philadelphia to Amsterdam flights
Philadelphia to Lisbon flights
Reagan-National to Lisbon flights
Baltimore to Barcelona-El Prat flights
Baltimore to Keflavik Intl flights
Reagan-National to Barcelona-El Prat flights

Top 4 airlines flying from Baltimore to Portugal

Discover the top 4 airlines that operate flights from Baltimore 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 March 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$529Average$922FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$548Average$831FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$643Average$1,062FlexibilityNo cancel feeOn-time70%
TAP AIR PORTUGALCheapest$680Average$942FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
Cookie settings©2026 Cheapflights