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$353+ Cheap flights from Porto (OPO) to Baltimore (BWI)

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 5/29. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — BWI
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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Cheap flight deals from Porto to Baltimore

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to Baltimore (BWI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$595
(British Airways)

One-way from

$353
(Kiwi.com)

Popular in

January

Cheapest in

May

Average price

$632
Provider with most accurate pricing for Porto-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for Porto-Washington, D.C. (WAS) flights.
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From Porto to Baltimore/Washington
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One-way flight from Porto to Baltimore/Washington
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Highest demand for flights based on searches. 7% potential increase in price ($57 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Porto to Baltimore

Cheapest flights from Porto to Baltimore
Explore the most affordable flight options available from Porto to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

This British Airways deal was found by Cheapflights users on 4/29. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/89:25 pmOPO - BWI
1 stop27h 10mBritish Airways
Sat 6/219:20 pmBWI - OPO
1 stop32h 30mBritish Airways
Deal found 4/29$595
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/611:35 amOPO - BWI
3 stops35h 21mMultiple Airlines
Fri 5/95:35 amBWI - OPO
3 stops32h 10mMultiple Airlines
Deal found 4/29$865
This United Airlines deal was found by Cheapflights users on 4/28. 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 6/126:00 amOPO - BWI
2 stops20h 42mUnited Airlines
Thu 6/196:40 amBWI - OPO
2 stops19h 25mUnited Airlines
Deal found 4/28$892
This KLM deal was found by Cheapflights users on 4/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/66:20 amOPO - BWI
2 stops17h 30mKLM
Fri 5/92:29 pmBWI - OPO
2 stops15h 11mKLM
Deal found 4/29$1,012
This Delta deal was found by Cheapflights users on 4/28. 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.
Wed 10/86:15 amOPO - BWI
2 stops20h 28mDelta
Tue 10/211:00 pmBWI - OPO
2 stops16h 40mDelta
Deal found 4/28$1,082
This Iberia deal was found by Cheapflights users on 4/28. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/98:40 amOPO - BWI
2 stops15h 55mIberia
Thu 7/109:20 pmBWI - OPO
2 stops17h 35mIberia
Deal found 4/28$1,858

Cheapflights Fare Finder

Customize your flight search to find flights from Porto 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, Cheapflights users made 2,558,603 searches. Data last updated April 30, 2025.
Use the filters below to find and compare flights from Porto to Baltimore that are best for you.

Fly from

Porto

Fly to

Baltimore

Route

Depart

Return

Price

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Sun 6/8

9:25 pm-7:35 pm

1 stop27h 10m

Baltimore/Washington

Sat 6/21

9:20 pm-10:50 am

1 stop32h 30m

$595

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Thu 6/12

6:30 am-4:32 pm

2 stops15h 02m

Baltimore/Washington

Thu 6/19

11:57 am-3:30 pm

2 stops22h 33m

$865

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Thu 6/12

6:00 am-9:42 pm

2 stops20h 42m

Baltimore/Washington

Thu 6/19

6:40 am-7:05 am

2 stops19h 25m

$892

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Wed 10/8

6:15 am-9:43 pm

2 stops20h 28m

Baltimore/Washington

Tue 10/21

1:00 pm-10:40 am

2 stops16h 40m

$1,082

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Wed 7/9

8:40 am-7:35 pm

2 stops15h 55m

Baltimore/Washington

Thu 7/10

9:20 pm-7:55 pm

2 stops17h 35m

$1,858

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Thu 5/29

11:35 am-10:13 pm

2 stops39h 38m

$353

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Thu 5/29

9:10 pm-5:40 pm

1 stop25h 30m

$474

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Thu 6/12

8:15 am-8:51 pm

2 stops17h 36m

$541

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Tue 9/16

8:40 pm-7:35 pm

1 stop27h 55m

$589

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Mon 9/29

6:30 am-9:43 pm

2 stops20h 13m

$600

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 13 results
1
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Best time to book a flight from Porto to Baltimore

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

Rainfall in Baltimore by month

Plan your trip to Baltimore by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Baltimore ranges from 2.9 - 4.1 inches per month. July is typically the wettest month, when rainfall can reach 4.1 in. February is typically the driest time to visit Baltimore when rainfall is around 2.9 in.

Temperature in Baltimore by month

Plan your trip to Baltimore by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Baltimore, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Baltimore

Get insights into the airlines that provide service to Baltimore. 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 Baltimore. Reviews last updated April 30, 2025.
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Iberia
7.0
Good
2,698 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
PLAY
6.9
Okay
101 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

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

  • What are the cheapest airlines to fly from Porto to Baltimore one-way?

    To fly one-way, consider booking your trip with PLAY, which is currently one of the cheapest options available, starting at $474. American Airlines flights start at $541 while deals on British Airways start at $589 one-way.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Porto to Baltimore (average of $241). Flying from Porto to Baltimore in March is currently the most expensive (average of $290). 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.

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