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$279+ Cheap flights from Maryland 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 Maryland to Porto

Keep the following information in mind while searching for Maryland to Porto flight deals. Data was last updated February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$539
(United Airlines)

One-way from

$279
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$590
Provider with most accurate pricing for Washington, D.C. (WAS)-Porto flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Porto flights.
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From Maryland to Porto
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One-way flight from Maryland to Porto
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Highest demand for flights based on searches. 22% potential increase in price ($198 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 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 Maryland to Porto

Cheapest flights from Maryland to Porto
Explore the most affordable flight options available from Maryland 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 Mytrip deal was found by Cheapflights users on 2/19. 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 4/1610:20 pmIAD - OPO
1 stop15h 40mTAP AIR PORTUGAL
Mon 4/2810:35 pmOPO - IAD
1 stop21h 45mTAP AIR PORTUGAL
Deal found 2/19$577
This SWISS 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/229:45 pmIAD - OPO
1 stop33h 30mSWISS
Mon 3/3112:50 pmOPO - IAD
1 stop32h 25mSWISS
Deal found 2/20$587
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/193:30 pmPHL - OPO
2 stops17h 20mMultiple Airlines
Sat 3/296:00 amOPO - PHL
2 stops37h 43mMultiple Airlines
Deal found 2/20$587
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/303:55 pmIAD - OPO
2 stops18h 45mAir Canada
Mon 4/76:00 amOPO - IAD
2 stops32h 41mAir Canada
Deal found 2/20$589
This United Airlines deal was found by Cheapflights users on 2/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/206:45 pmPHL - OPO
1 stop16h 25mUnited Airlines
Thu 3/276:00 amOPO - PHL
2 stops37h 45mUnited Airlines
Deal found 2/19$589
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/303:42 pmIAD - OPO
2 stops14h 33mMultiple Airlines
Sun 4/68:40 amOPO - IAD
1 stop12h 35mMultiple Airlines
Deal found 2/20$591
This Lufthansa 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/96:50 pmIAD - OPO
1 stop16h 20mLufthansa
Sun 3/166:00 amOPO - IAD
1 stop14h 50mLufthansa
Deal found 2/20$595
This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/224:10 pmDCA - OPO
2 stops16h 40mAir Canada
Mon 3/3112:10 pmOPO - DCA
2 stops32h 14mAir Canada
Deal found 2/20$598

Find flights from Maryland to Porto within your budget

Customize your flight search to find flights from Maryland 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

Maryland

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

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 4/16

10:20 pm-7:00 pm

1 stop15h 40m

Porto

Mon 4/28

10:35 pm-3:20 pm

1 stop21h 45m

$577

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sat 3/22

9:45 pm-11:15 am

1 stop33h 30m

Porto

Mon 3/31

12:50 pm-4:15 pm

1 stop32h 25m

$587

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Wed 3/19

3:30 pm-12:50 pm

2 stops17h 20m

Porto

Sat 3/29

6:00 am-3:43 pm

2 stops37h 43m

$587

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sun 3/30

3:55 pm-3:40 pm

2 stops18h 45m

Porto

Mon 4/7

6:00 am-9:41 am

2 stops32h 41m

$589

PhiladelphiaPorto

PHL - OPO

PHLOPO

Philadelphia

Thu 3/20

6:45 pm-3:10 pm

1 stop16h 25m

Porto

Thu 3/27

6:00 am-3:45 pm

2 stops37h 45m

$589

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sun 3/30

3:42 pm-11:15 am

2 stops14h 33m

Porto

Sun 4/6

8:40 am-4:15 pm

1 stop12h 35m

$591

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 60 results
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Best time to book a flight from Maryland to Porto

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

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

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

Currently, January is the cheapest month in which you can book a flight from Maryland to Porto (average of $523). Flying from Maryland 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 MD to OPO?

Find hourly flight availability from Maryland 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.

When flying from Maryland to Porto, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.
Read through reviews of airlines operating flights from Maryland to Porto, such as Delta, KLM and Austrian Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

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

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

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

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

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.

Austrian Airlines
7.6
Good
773 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

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.

SWISS
7.5
Good
1,568 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

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

Food

7.3

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

8.0

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 Maryland to Porto. 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 into for flights to Porto from Maryland?

    If you book a flight to Porto from Maryland, you will be flying to Porto, which is the city’s only airport. Porto (OPO) is located 6.8 mi from the center of Porto.

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

    $372 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on Iberia and American Airlines, with prices starting from $461 and $463, respectively.

  • What are the most popular routes from Maryland to Porto?

    When deciding which route to take from Maryland to Porto consider Washington, D.C. Dulles Intl - Porto, Washington, D.C. Reagan-National - Porto or Baltimore/Washington - Porto as they are the most popular.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Maryland to Porto (average of $523). Flying from Maryland 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 Maryland?

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

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Alternative routes for Maryland to Porto

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Maryland to Porto

Discover the top 2 airlines that operate flights from Maryland 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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