HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Porto

$249+ 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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — OPO
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Maryland to Porto with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Maryland to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Maryland (USMD) 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 January 21, 2025.

Round-trip from

$493
(Mytrip)

One-way from

$249
(Kiwi.com)
From Maryland to Porto
Search Deals
One-way flight from Maryland to Porto
Search Deals

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 January 21, 2025.

This Gotogate deal was found by Cheapflights users on 1/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2410:20 pmIAD - OPO
1 stop19h 40mTAP AIR PORTUGAL
Thu 5/89:00 amOPO - IAD
1 stop16h 50mTAP AIR PORTUGAL
Deal found 1/21$485
This Gotogate deal was found by Cheapflights users on 1/20. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/184:10 pmDCA - OPO
2 stops15h 55mAir Canada
Tue 3/256:00 amOPO - DCA
2 stops41h 57mAir Canada
Deal found 1/20$493
This Mytrip deal was found by Cheapflights users on 1/21. 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.
Sun 3/26:10 pmBWI - OPO
2 stops16h 25mMultiple Airlines
Fri 3/76:20 amOPO - BWI
2 stops15h 40mMultiple Airlines
Deal found 1/21$502
This Flighttix deal was found by Cheapflights users on 1/20. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/183:55 pmIAD - OPO
2 stops15h 45mMultiple Airlines
Tue 3/256:00 amOPO - IAD
1 stop14h 50mMultiple Airlines
Deal found 1/20$509
This Mytrip deal was found by Cheapflights users on 1/20. 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.
Sun 3/239:45 pmIAD - OPO
1 stop33h 30mSWISS
Mon 3/317:20 pmOPO - IAD
1 stop25h 55mSWISS
Deal found 1/20$526
This United deal was found by Cheapflights users on 1/21. 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.
Mon 3/315:24 pmIAD - OPO
1 stop11h 21mUnited Airlines
Tue 4/86:00 amOPO - IAD
1 stop14h 50mUnited Airlines
Deal found 1/21$527
This Air Canada deal was found by Cheapflights users on 1/20. 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 2/193:55 pmIAD - OPO
2 stops15h 55mAir Canada
Tue 2/256:00 amOPO - IAD
2 stops31h 05mAir Canada
Deal found 1/20$536
This Delta deal was found by Cheapflights users on 1/21. 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 2/512:05 pmIAD - OPO
2 stops17h 45mDelta
Tue 2/116:00 amOPO - IAD
1 stop14h 45mDelta
Deal found 1/21$543
This American Airlines deal was found by Cheapflights users on 1/21. 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.
Tue 2/1811:16 amBWI - OPO
2 stops15h 24mAmerican Airlines
Tue 2/258:20 amOPO - BWI
2 stops17h 38mAmerican Airlines
Deal found 1/21$544
This United Airlines deal was found by Cheapflights users on 1/20. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2311:10 amDCA - OPO
2 stops20h 25mUnited Airlines
Mon 3/3112:05 pmOPO - DCA
2 stops32h 19mUnited Airlines
Deal found 1/20$548
This Cheapflightsfares deal was found by Cheapflights users on 1/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/234:35 pmIAD - OPO
1 stop10h 00mIberia
Tue 11/48:20 amOPO - IAD
1 stop13h 10mIberia
Deal found 1/20$556
This KLM deal was found by Cheapflights users on 1/21. 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.
Wed 2/2612:26 pmBWI - OPO
2 stops17h 04mKLM
Tue 3/46:00 amOPO - BWI
2 stops21h 26mKLM
Deal found 1/21$559

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Thu 4/24

10:20 pm-11:00 pm

1 stop19h 40m

Porto

Thu 5/8

9:00 am-8:50 pm

1 stop16h 50m

$485

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Tue 3/18

4:10 pm-12:05 pm

2 stops15h 55m

Porto

Tue 3/25

6:00 am-7:57 pm

2 stops41h 57m

$493

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Sun 3/2

6:10 pm-3:35 pm

2 stops16h 25m

Porto

Fri 3/7

6:20 am-5:00 pm

2 stops15h 40m

$502

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Tue 3/18

3:55 pm-11:40 am

2 stops15h 45m

Porto

Tue 3/25

6:00 am-4:50 pm

1 stop14h 50m

$509

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sun 3/23

9:45 pm-11:15 am

1 stop33h 30m

Porto

Mon 3/31

7:20 pm-4:15 pm

1 stop25h 55m

$526

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 3/31

5:24 pm-9:45 am

1 stop11h 21m

Porto

Tue 4/8

6:00 am-3:50 pm

1 stop14h 50m

$527

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 2/19

3:55 pm-12:50 pm

2 stops15h 55m

Porto

Tue 2/25

6:00 am-8:05 am

2 stops31h 05m

$536

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 2/5

12:05 pm-10:50 am

2 stops17h 45m

Porto

Tue 2/11

6:00 am-3:45 pm

1 stop14h 45m

$543

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Tue 2/18

11:16 am-7:40 am

2 stops15h 24m

Porto

Tue 2/25

8:20 am-8:58 pm

2 stops17h 38m

$544

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Sun 3/23

11:10 am-11:35 am

2 stops20h 25m

Porto

Mon 3/31

12:05 pm-3:24 pm

2 stops32h 19m

$548

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 60 results
1
2
3
...
6

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 $1,083). 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 January 21, 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 January 21, 2025.
Read through reviews of airlines operating flights from Maryland to Porto, such as American Airlines, Delta and KLM. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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

SWISS
7.5
Good
1,600 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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

Air France
7.4
Good
1,490 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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

United Airlines
7.4
Good
8,984 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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?

    $401 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 British Airways and American Airlines, with prices starting from $448 and $451, 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 $1,083). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Maryland to Porto

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Lisbon flights
Newark to Lisbon flights
Boston to Lisbon flights
LaGuardia to Lisbon flights
Dulles Intl to Lisbon flights
Newark to Porto flights
Miami to Lisbon flights
Reagan-National to Lisbon flights
Boston to Ponta Delgada flights
O'Hare Intl to Lisbon flights
Baltimore to Lisbon flights
San Francisco to Lisbon flights
Los Angeles to Lisbon flights
John F Kennedy Intl to Porto flights
John F Kennedy Intl to Ponta Delgada flights
Philadelphia to Lisbon flights
Dallas/Fort Worth to Lisbon flights
LaGuardia to Porto flights
Seattle to Lisbon flights
Newark to Ponta Delgada flights
Midway to Lisbon flights
Atlanta to Lisbon flights
Denver to Lisbon flights
Hobby to Lisbon flights
Boston to Porto flights
Love Field to Lisbon flights
Charlotte to Lisbon flights
Orlando to Lisbon flights
LaGuardia to Ponta Delgada flights
George Bush Intcntl to Lisbon flights
Minneapolis to Lisbon flights
John F Kennedy Intl to Funchal flights
Dulles Intl to Porto flights
Portland to Lisbon flights
Raleigh to Lisbon flights
Stewart to Lisbon flights
O'Hare Intl to Porto flights
Sky Harbor Intl to Lisbon flights
Newark to Funchal flights
Tampa to Lisbon flights
Cincinnati to Lisbon flights
Detroit to Lisbon flights
Austin to Lisbon flights
Reagan-National to Porto flights
LaGuardia to Funchal flights
San Diego to Lisbon flights
Newark to Faro flights
John F Kennedy Intl to Faro flights
Baltimore to Porto flights
Seattle to Porto flights

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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$436Average$751FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$446Average$700FlexibilityNo cancel feeOn-time75%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.