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$242+ 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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — LIS
Dec 21 — Dec 281
Sun 12/21
Sun 12/28
1 adult, Economy
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Cheap flight deals from Baltimore to Portugal

Keep the following information in mind while searching for Baltimore to Portugal flight deals. Data was last updated November 21, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$438
(Mytrip)

One-way from

$242
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$825
Provider with most accurate pricing for Washington, D.C. (WAS)-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Lisbon Humberto Delgado flights.
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From Baltimore/Washington to Portugal
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One-way flight from Baltimore/Washington to Portugal
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Highest demand for flights based on searches. 6% potential increase in price ($60 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find 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 November 21, 2025.

This KLM deal was found by Cheapflights users on 11/18. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/65:31 pmBWI - OPO
2 stops16h 54mKLM
Mon 12/156:30 amOPO - BWI
2 stops17h 32mKLM
Deal found 11/18$598
This United Airlines deal was found by Cheapflights users on 11/18. 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.
Tue 12/21:10 pmBWI - OPO
2 stops17h 30mUnited Airlines
Wed 12/106:00 amOPO - BWI
2 stops20h 08mUnited Airlines
Deal found 11/18$603
This FlightHub deal was found by Cheapflights users on 11/19. 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.
Sat 12/67:40 pmBWI - LIS
1 stop19h 40mIcelandair
Sun 12/149:20 pmLIS - BWI
1 stop26h 20mIcelandair
Deal found 11/19$650
This British Airways deal was found by Cheapflights users on 11/20. 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.
Thu 12/118:35 pmBWI - OPO
1 stop15h 40mBritish Airways
Wed 12/176:35 pmOPO - BWI
1 stop29h 10mBritish Airways
Deal found 11/20$655
This FlightHub deal was found by Cheapflights users on 11/19. 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 12/910:55 amBWI - LIS
2 stops23h 45mMultiple Airlines
Sun 12/144:45 pmLIS - BWI
2 stops45h 33mMultiple Airlines
Deal found 11/19$660
This Mytrip deal was found by Cheapflights users on 11/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/117:40 pmBWI - OPO
3 stops20h 35mMultiple Airlines
Tue 12/169:55 pmOPO - BWI
3 stops25h 45mMultiple Airlines
Deal found 11/20$661
This American Airlines deal was found by Cheapflights users on 11/18. 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.
Sat 12/611:35 amBWI - OPO
2 stops19h 10mAmerican Airlines
Tue 12/168:20 amOPO - BWI
2 stops18h 48mAmerican Airlines
Deal found 11/18$671
This British Airways deal was found by Cheapflights users on 11/20. 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.
Wed 12/108:35 pmBWI - OPO
1 stop15h 10mBritish Airways
Wed 12/176:35 pmOPO - BWI
1 stop29h 10mBritish Airways
Deal found 11/20$680
This British Airways deal was found by Cheapflights users on 11/20. 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.
Thu 12/118:35 pmBWI - OPO
1 stop15h 40mBritish Airways
Mon 12/225:30 pmOPO - BWI
1 stop30h 15mBritish Airways
Deal found 11/20$690
This Mytrip deal was found by Cheapflights users on 11/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:40 pmBWI - LIS
2 stops18h 35mMultiple Airlines
Mon 12/86:15 pmLIS - BWI
3 stops29h 25mMultiple Airlines
Deal found 11/19$691
This KAYAK deal was found by Cheapflights users on 11/20. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:40 pmBWI - LIS
1 stop19h 40mIcelandair
Sun 12/149:20 pmLIS - BWI
1 stop26h 20mIcelandair
Deal found 11/20$698
This British Airways deal was found by Cheapflights users on 11/20. 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.
Wed 12/108:35 pmBWI - OPO
1 stop15h 10mBritish Airways
Mon 12/225:30 pmOPO - BWI
1 stop30h 15mBritish Airways
Deal found 11/20$715

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 November 21, 2025.
Use the filters below to find and compare flights from Baltimore to Portugal that are best for you.

Fly from

Baltimore

Fly to

Portugal

Route

Depart

Return

Price

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Tue 3/24

9:35 pm-5:35 pm

1 stop16h 00m

Porto

Mon 3/30

9:10 pm-7:40 pm

1 stop27h 30m

$530

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Tue 2/10

8:35 pm-5:35 pm

1 stop16h 00m

Porto

Thu 2/19

4:55 pm-6:45 pm

1 stop30h 50m

$530

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Wed 2/11

8:35 pm-4:05 pm

1 stop14h 30m

Porto

Tue 2/24

5:30 pm-6:45 pm

1 stop30h 15m

$530

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Sun 3/22

9:35 pm-4:40 pm

1 stop15h 05m

Porto

Mon 3/30

9:10 pm-7:40 pm

1 stop27h 30m

$530

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Fri 2/13

8:35 pm-7:00 pm

1 stop17h 25m

Porto

Thu 2/19

4:55 pm-6:45 pm

1 stop30h 50m

$580

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Wed 2/11

8:35 pm-4:05 pm

1 stop14h 30m

Porto

Fri 2/20

6:05 pm-6:45 pm

1 stop29h 40m

$580

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Sun 3/22

9:35 pm-4:40 pm

1 stop15h 05m

Porto

Sun 3/29

9:25 pm-7:40 pm

1 stop27h 15m

$580

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Sun 2/15

8:35 pm-4:40 pm

1 stop15h 05m

Porto

Sat 2/21

7:50 pm-6:45 pm

1 stop27h 55m

$580

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Mon 2/2

1:02 pm-9:30 pm

2 stops27h 28m

Lisbon Humberto Delgado

Wed 2/18

7:00 pm-10:04 pm

2 stops32h 04m

$586

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Tue 3/24

3:30 pm-10:30 am

2 stops15h 00m

Porto

Thu 4/2

11:25 am-9:15 am

2 stops26h 50m

$590

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/21

Showing 1-10 of 53 results
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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 $529). 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.

What is the cheapest time of day to fly from BWI to PT?

Find hourly flight availability from Baltimore to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 34% on flights from Baltimore to Portugal by exploring options for tickets at noon.

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 November 21, 2025.
Get a feel of what it's like to fly with Delta, American Airlines, and TAP 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
8,002 reviews

Boarding

8.1

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.3

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
8,002 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.3

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.
American Airlines
7.2
Good
11,047 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.3

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
2,070 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.3

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.
PLAY
7.0
Good
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.3

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
7,533 reviews
Delta
7.9
Good
8,002 reviews

Boarding

8.1

Entertainment

7.9

Crew

8.5

Comfort

7.9

Overall

7.9

Food

7.3

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 12h 30m. Fly via British Airways, United Airlines, or Delta to get the fastest option. There are 3535 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 $529). 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

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Alternative routes for Baltimore to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Baltimore to Portugal

Discover the top 6 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 November 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$345Average$396FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$529Average$963FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$641Average$978FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$701Average$1,298FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$748Average$923FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$771Average$1,040FlexibilityNo cancel feeOn-time70%

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