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District of Columbia

$347+ Cheap flights from Porto (OPO) to District of Columbia

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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — BWI
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Porto to District of Columbia

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to District of Columbia (USDC). 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

$472
(KLM)

One-way from

$347
(oojo)
From Porto to District of Columbia
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One-way flight from Porto to District of Columbia
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Find flight deals from Porto to District of Columbia

Cheapest flights from Porto to District of Columbia
Explore the most affordable flight options available from Porto to District of Columbia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

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.
Thu 3/611:15 amOPO - IAD
1 stop33h 30mKLM
Thu 3/207:30 pmIAD - OPO
1 stop11h 20mKLM
Deal found 1/21$472
This Air France 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/256:00 amOPO - IAD
1 stop14h 45mMultiple Airlines
Tue 3/117:30 pmIAD - OPO
1 stop11h 05mMultiple Airlines
Deal found 1/20$473
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/36:20 amOPO - IAD
2 stops17h 36mDelta
Mon 2/176:30 pmIAD - OPO
1 stop11h 20mDelta
Deal found 1/20$478
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/312:25 pmOPO - DCA
2 stops15h 16mAmerican Airlines
Mon 2/1711:40 amDCA - OPO
2 stops15h 00mAmerican Airlines
Deal found 1/20$486
This AirNGo 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/314:20 pmOPO - IAD
2 stops28h 15mAir France
Thu 5/159:20 pmIAD - OPO
1 stop13h 10mAir France
Deal found 1/20$507
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.
Mon 2/246:00 amOPO - IAD
2 stops31h 05mUnited Airlines
Mon 3/106:50 pmIAD - OPO
1 stop16h 35mUnited Airlines
Deal found 1/20$521
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/66:00 amOPO - DCA
2 stops31h 57mUnited Airlines
Thu 3/206:50 pmDCA - OPO
2 stops36h 50mUnited Airlines
Deal found 1/21$531
This Lufthansa 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/246:00 amOPO - IAD
1 stop19h 20mLufthansa
Tue 3/116:35 pmIAD - OPO
1 stop14h 15mLufthansa
Deal found 1/20$536
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/66:00 amOPO - IAD
2 stops32h 46mAir Canada
Thu 3/202:35 pmIAD - OPO
2 stops17h 00mAir Canada
Deal found 1/21$538
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/78:40 pmOPO - IAD
2 stops28h 05mBritish Airways
Fri 3/1410:55 pmIAD - OPO
2 stops28h 45mBritish Airways
Deal found 1/21$601
This KAYAK 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/122:35 pmOPO - IAD
2 stops30h 40mSWISS
Sat 4/198:45 pmIAD - OPO
1 stop33h 40mSWISS
Deal found 1/21$653
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/258:40 pmOPO - IAD
2 stops28h 05mIberia
Sat 3/89:55 pmIAD - OPO
2 stops17h 05mIberia
Deal found 1/20$657

Find flights from Porto to District of Columbia within your budget

Customize your flight search to find flights from Porto to District of Columbia 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

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Thu 3/6

11:15 am-3:45 pm

1 stop33h 30m

Washington, D.C. Dulles Intl

Thu 3/20

7:30 pm-10:50 am

1 stop11h 20m

$472

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Tue 2/25

6:00 am-3:45 pm

1 stop14h 45m

Washington, D.C. Dulles Intl

Sun 3/9

7:30 pm-10:55 am

1 stop11h 25m

$473

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 2/3

6:20 am-6:56 pm

2 stops17h 36m

Washington, D.C. Dulles Intl

Mon 2/17

6:30 pm-10:50 am

1 stop11h 20m

$478

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Mon 2/3

12:25 pm-10:41 pm

2 stops15h 16m

Washington, D.C. Reagan-National

Mon 2/17

11:40 am-7:40 am

2 stops15h 00m

$486

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 3/31

4:20 pm-3:35 pm

2 stops28h 15m

Washington, D.C. Dulles Intl

Thu 5/15

9:20 pm-3:30 pm

1 stop13h 10m

$507

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 2/24

6:00 am-8:05 am

2 stops31h 05m

Washington, D.C. Dulles Intl

Sun 3/9

6:20 pm-11:35 am

1 stop13h 15m

$521

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Thu 3/6

6:00 am-8:57 am

2 stops31h 57m

Washington, D.C. Reagan-National

Thu 3/20

6:50 pm-11:40 am

2 stops36h 50m

$531

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 2/24

6:00 am-8:20 pm

1 stop19h 20m

Washington, D.C. Dulles Intl

Tue 3/11

6:35 pm-12:50 pm

1 stop14h 15m

$536

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Thu 3/6

6:00 am-9:46 am

2 stops32h 46m

Washington, D.C. Dulles Intl

Thu 3/20

2:35 pm-11:35 am

2 stops17h 00m

$538

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Fri 3/7

8:40 pm-7:45 pm

2 stops28h 05m

Washington, D.C. Dulles Intl

Fri 3/14

10:55 pm-7:40 am

2 stops28h 45m

$601

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 34 results
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Best time to book a flight from Porto to District of Columbia

Have a flexible travel schedule? Discover the best time to fly to District of Columbia 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.

Travel insights for flights from Porto to District of Columbia

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

What is the cheapest month to book a flight from Porto to District of Columbia?

Currently, August is the cheapest month in which you can book a flight from Porto to District of Columbia (average of $241). Flying from Porto to District of Columbia 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.

What is the cheapest time of day to fly from OPO to DC?

Find hourly flight availability from Porto to District of Columbia. 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 Porto to District of Columbia, 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 District of Columbia by month

Plan your trip to District of Columbia by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in District of Columbia ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit District of Columbia when rainfall is around 2.6 in.

Temperature in District of Columbia by month

Plan your trip to District of Columbia by taking into account the average temperature totals by month.

If weather is an important factor for your trip to District of Columbia, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing District of Columbia

Get insights into the airlines that provide service to District of Columbia. 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 District of Columbia. Reviews last updated January 21, 2025.
Read reviews from past customers who have flown TAP AIR PORTUGAL, Delta and United Airlines from Porto to District of Columbia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

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

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

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

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

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

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

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

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

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

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

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

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

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

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

Comfort

8.0

Crew

8.6

Boarding

8.2

Food

7.3

Entertainment

7.9

Overall

8.0

Reviews

1 / 10

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 District of Columbia. 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 Porto to District of Columbia?

    For a flight from Porto to District of Columbia, you will be flying from Porto. Porto (OPO) is just 6.8 mi from the center of the city.

  • What are the cheapest airlines to fly from Porto to District of Columbia one-way?

    To fly one-way, consider booking your trip with Royal Air Maroc, which is currently one of the cheapest options available, starting at $347. British Airways flights start at $481 while deals on SWISS start at $514 one-way.

  • Can I find deals for flights from Porto to District of Columbia that include hotel bookings?

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

  • How can I find direct flights from Porto to District of Columbia?

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

  • Can I find deals for business class flights from Porto to District of Columbia?

    Yes. Cheapflights offers flight deals from Porto to District of Columbia 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 District of Columbia?

    Currently, August is the cheapest month in which you can book a flight from Porto to District of Columbia (average of $241). Flying from Porto to District of Columbia 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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Alternative routes for Porto to District of Columbia

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Top airline flying from Porto to District of Columbia

Discover the top airline that operate flights from Porto to District of Columbia. 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
TAP AIR PORTUGALCheapest$501Average$812FlexibilityNo cancel feeOn-timeN/A
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