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$227+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — LIS
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
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 October 30, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$450
(Mytrip)

One-way from

$227
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$785
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. 4% potential increase in price ($45 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 30, 2025.

This United Airlines deal was found by Cheapflights users on 10/29. 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 11/246:15 amBWI - OPO
2 stops22h 15mUnited Airlines
Fri 12/56:00 amOPO - BWI
2 stops20h 08mUnited Airlines
Deal found 10/29$484
This United Airlines deal was found by Cheapflights users on 10/28. 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 11/196:15 amBWI - OPO
2 stops22h 15mUnited Airlines
Tue 12/166:00 amOPO - BWI
2 stops16h 25mUnited Airlines
Deal found 10/28$488
This Delta deal was found by Cheapflights users on 10/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/112:35 pmBWI - OPO
2 stops14h 55mDelta
Tue 11/186:05 amOPO - BWI
2 stops17h 58mDelta
Deal found 10/27$492
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/1910:56 amBWI - OPO
2 stops17h 34mMultiple Airlines
Mon 12/1512:55 pmOPO - BWI
2 stops33h 30mMultiple Airlines
Deal found 10/29$500
This United Airlines deal was found by Cheapflights users on 10/27. 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 12/310:20 amBWI - OPO
2 stops20h 20mUnited Airlines
Wed 12/106:00 amOPO - BWI
2 stops16h 25mUnited Airlines
Deal found 10/27$503
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Thu 11/2710:56 amBWI - OPO
2 stops17h 34mMultiple Airlines
Thu 12/47:25 pmOPO - BWI
2 stops30h 43mMultiple Airlines
Deal found 10/28$512
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Fri 11/286:15 amBWI - OPO
2 stops22h 15mUnited Airlines
Fri 12/56:00 amOPO - BWI
2 stops36h 50mUnited Airlines
Deal found 10/29$513
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/21:52 pmBWI - OPO
2 stops15h 38mDelta
Sun 12/145:00 amOPO - BWI
2 stops19h 02mDelta
Deal found 10/29$517
This United Airlines deal was found by Cheapflights users on 10/29. 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 12/31:10 pmBWI - OPO
2 stops17h 30mMultiple Airlines
Mon 12/84:15 pmOPO - BWI
2 stops30h 10mMultiple Airlines
Deal found 10/29$523
This United Airlines deal was found by Cheapflights users on 10/29. 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 11/126:15 amBWI - OPO
2 stops22h 15mUnited Airlines
Sun 11/166:00 amOPO - BWI
2 stops20h 24mUnited Airlines
Deal found 10/29$534
This Mytrip deal was found by Cheapflights users on 10/28. 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.
Tue 12/27:40 pmBWI - LIS
2 stops19h 10mMultiple Airlines
Tue 12/98:55 pmLIS - BWI
2 stops26h 45mMultiple Airlines
Deal found 10/28$535
This Delta deal was found by Cheapflights users on 10/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/149:05 amBWI - OPO
2 stops20h 25mDelta
Wed 11/196:00 amOPO - BWI
2 stops23h 26mDelta
Deal found 10/28$542

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 October 30, 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

Mon 11/24

6:15 am-9:30 am

2 stops22h 15m

Porto

Fri 12/5

6:00 am-9:08 pm

2 stops20h 08m

$484

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Wed 11/19

6:15 am-9:30 am

2 stops22h 15m

Porto

Tue 12/16

6:00 am-5:25 pm

2 stops16h 25m

$488

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Wed 2/11

10:05 am-12:05 pm

2 stops21h 00m

Porto

Wed 2/25

6:00 am-9:27 pm

2 stops20h 27m

$492

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Wed 2/11

10:54 am-10:30 am

2 stops18h 36m

Porto

Wed 2/25

6:00 am-10:59 pm

2 stops21h 59m

$492

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Tue 11/11

2:35 pm-10:30 am

2 stops14h 55m

Porto

Tue 11/18

6:05 am-7:03 pm

2 stops17h 58m

$492

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Wed 12/3

10:20 am-11:40 am

2 stops20h 20m

Porto

Wed 12/17

12:30 pm-9:48 am

2 stops26h 18m

$503

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Wed 12/3

10:20 am-11:40 am

2 stops20h 20m

Porto

Wed 12/10

6:00 am-5:25 pm

2 stops16h 25m

$503

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Thu 11/27

10:56 am-9:30 am

2 stops17h 34m

Porto

Thu 12/4

7:25 pm-9:08 pm

2 stops30h 43m

$512

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Fri 11/28

6:15 am-9:30 am

2 stops22h 15m

Porto

Fri 12/5

6:00 am-9:08 pm

3 stops44h 08m

$513

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Wed 12/3

1:10 pm-11:40 am

2 stops17h 30m

Porto

Mon 12/8

4:15 pm-5:25 pm

2 stops30h 10m

$523

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 60 results
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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 $346). Flying from Baltimore to Portugal in December is currently the most expensive (average of $551). 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 October 30, 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 October 30, 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
7,993 reviews

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,993 reviews
Delta
7.9
Good
7,993 reviews

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,030 reviews
Delta
7.9
Good
7,993 reviews

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
TAP AIR PORTUGAL
7.1
Good
2,037 reviews
Delta
7.9
Good
7,993 reviews

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
PLAY
7.0
Good
Delta
7.9
Good
7,993 reviews

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
British Airways
6.7
Okay
7,487 reviews
Delta
7.9
Good
7,993 reviews

Overall

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Comfort

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

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 17h 01m. Fly via United Airlines, Delta, or KLM to get the fastest option. There are 3643 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 - Faro 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 $346). Flying from Baltimore to Portugal in December is currently the most expensive (average of $551). 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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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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$345Average$396FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$529Average$963FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$670Average$993FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$748Average$923FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$751Average$852FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$771Average$1,040FlexibilityNo cancel feeOn-time70%

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