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$279+ Cheap flights from Baltimore (BWI) to Porto (OPO)

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 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — OPO
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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Cheap flight deals from Baltimore to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Porto (OPO). 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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$547
(KLM)

One-way from

$279
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$648
Provider with most accurate pricing for Baltimore/Washington-Porto flight deals.
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Provider most trusted by Cheapflights users for Baltimore/Washington-Porto flights.
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From Baltimore/Washington to Porto
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One-way flight from Baltimore/Washington to Porto
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($199 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($36 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Baltimore to Porto

Cheapest flights from Baltimore to Porto
Explore the most affordable flight options available from Baltimore to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.

This Mytrip deal was found by Cheapflights users on 2/20. 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.
Sat 5/106:50 pmBWI - OPO
1 stop20h 15mPLAY
Sun 5/189:05 pmOPO - BWI
1 stop25h 35mPLAY
Deal found 2/20$517
This Delta deal was found by Cheapflights users on 2/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/210:59 amBWI - OPO
2 stops18h 41mDelta
Wed 4/96:20 amOPO - BWI
2 stops17h 27mDelta
Deal found 2/20$559
This United deal was found by Cheapflights users on 2/20. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/165:39 pmBWI - OPO
2 stops37h 56mMultiple Airlines
Tue 3/256:00 amOPO - BWI
2 stops19h 21mMultiple Airlines
Deal found 2/20$560
This Ovago deal was found by Cheapflights users on 2/20. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/169:30 pmBWI - OPO
1 stop15h 10mBritish Airways
Tue 3/2512:25 pmOPO - BWI
2 stops37h 52mBritish Airways
Deal found 2/20$575
This American Airlines deal was found by Cheapflights users on 2/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/510:51 amBWI - OPO
2 stops15h 49mAmerican Airlines
Thu 11/138:20 amOPO - BWI
2 stops18h 24mAmerican Airlines
Deal found 2/20$824
This United deal was found by Cheapflights users on 2/20. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/3010:50 amBWI - OPO
2 stops17h 55mUnited Airlines
Sun 4/66:00 amOPO - BWI
2 stops20h 42mUnited Airlines
Deal found 2/20$867
This oojo deal was found by Cheapflights users on 2/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/16:50 pmBWI - OPO
1 stop20h 15mWorldTicket
Sat 8/309:05 pmOPO - BWI
1 stop25h 35mWorldTicket
Deal found 2/20$1,077
This oojo deal was found by Cheapflights users on 2/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/169:20 pmBWI - OPO
2 stops17h 35mIberia
Thu 5/110:00 pmOPO - BWI
2 stops26h 35mIberia
Deal found 2/20$1,418
This Aeromexico deal was found by Cheapflights users on 2/20. 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 Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/185:40 pmBWI - OPO
2 stops21h 55mAir France
Wed 4/234:20 pmOPO - BWI
2 stops36h 01mAir France
Deal found 2/20$1,668
This Scandinavian Airlines deal was found by Cheapflights users on 2/20. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/101:00 pmBWI - OPO
3 stops28h 15mScandinavian Airlines
Sun 9/145:00 amOPO - BWI
3 stops21h 43mScandinavian Airlines
Deal found 2/20$1,966

Find flights from Baltimore to Porto within your budget

Customize your flight search to find flights from Baltimore to Porto 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 February 20, 2025.

Fly from

Baltimore

Fly to

Porto

Route

Depart

Return

Price

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Sat 5/10

6:50 pm-8:05 pm

1 stop20h 15m

Porto

Sun 5/18

9:05 pm-5:40 pm

1 stop25h 35m

$517

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Wed 4/2

10:59 am-10:40 am

2 stops18h 41m

Porto

Wed 4/9

6:20 am-6:47 pm

2 stops17h 27m

$559

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Sun 3/16

5:39 pm-11:35 am

2 stops37h 56m

Porto

Tue 3/25

6:00 am-9:21 pm

2 stops19h 21m

$560

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Sun 3/16

9:30 pm-4:40 pm

1 stop15h 10m

Porto

Tue 3/25

12:25 pm-10:17 pm

2 stops37h 52m

$575

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Sun 3/30

10:50 am-9:45 am

2 stops17h 55m

Porto

Sun 4/6

6:00 am-9:42 pm

2 stops20h 42m

$867

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Fri 8/1

6:50 pm-8:05 pm

1 stop20h 15m

Porto

Sat 8/30

9:05 pm-5:40 pm

1 stop25h 35m

$1,077

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Tue 5/6

10:53 am-7:35 am

2 stops15h 42m

Porto

Sun 5/11

8:15 am-7:27 pm

2 stops16h 12m

$1,226

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Wed 4/16

9:20 pm-7:55 pm

2 stops17h 35m

Porto

Thu 5/1

10:00 pm-7:35 pm

2 stops26h 35m

$1,418

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Fri 4/18

5:40 pm-8:35 pm

2 stops21h 55m

Porto

Wed 4/23

4:20 pm-11:21 pm

2 stops36h 01m

$1,668

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Wed 3/19

7:10 pm-9:50 am

3 stops58h 40m

$279

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 17 results
1
2

Compare providers for flights from Baltimore to Porto

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Baltimore to Porto in February.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star
CheapOairPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Baltimore-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-Porto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-Porto flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Baltimore-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Baltimore to Porto

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

Travel insights for flights from Baltimore to Porto

Get recent, data-driven insights about flights from Baltimore to Porto including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Baltimore to Porto (average of $523). Flying from Baltimore to Porto in June is currently the most expensive (average of $1,092). 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 OPO?

Find hourly flight availability from Baltimore to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 45% on flights from Baltimore to Porto by exploring options for tickets at noon.

Rainfall in Porto by month

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

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

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

If weather is an important factor for your trip to Porto, 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 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated February 20, 2025.
Delta
8.0
Very good
8,219 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,219 reviews
Delta
8.0
Very good
8,219 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
8,219 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France
7.4
Good
1,449 reviews
Delta
8.0
Very good
8,219 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,765 reviews
Delta
8.0
Very good
8,219 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Scandinavian Airlines
7.3
Good
1,325 reviews
Delta
8.0
Very good
8,219 reviews

Entertainment

7.9

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Porto. 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 flying from Baltimore to Porto round-trip?

    According to our current data, KLM ($547), Delta ($559), and PLAY ($703) offers the cheapest pricing from Baltimore to Porto. KLM is 25% cheaper than the average price of flights available within the next 90 days to this destination.

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

    $463 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on United Airlines and British Airways, with prices starting from $690 and $913, respectively.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Baltimore to Porto (average of $523). Flying from Baltimore to Porto in June is currently the most expensive (average of $1,092). 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

Traveling to a place near Baltimore?

Book flights to Baltimore if you plan to visit one of these locations
Aveiro
Coimbra
Matosinhos
Arcos de Valdevez

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Alternative routes for Baltimore to Porto

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Top 2 airlines flying from Baltimore to Porto

Discover the top 2 airlines that operate flights from Baltimore to Porto. 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$436Average$817FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$451Average$716FlexibilityNo cancel feeOn-time75%
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