Washington, D.C.

$300+ Cheap flights from Porto (OPO) to Washington, D.C. (WAS)

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.
OPO — WAS
Nov 25 — Dec 21
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Porto to Washington, D.C. 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 Porto to Washington, D.C.

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to Washington, D.C. (WAS). 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 November 20, 2024.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Popular in

July

Cheapest in

April

Round-trip from

$451
(American Airlines)

One-way from

$300
(Kiwi.com)
Provider with most accurate pricing for Porto-Washington, D.C. (WAS) flight deals.
Provider most trusted by Cheapflights users for Porto-Washington, D.C. (WAS) flights.
High demand for flights, 23% potential price rise
Best time to find cheap flights, 31% potential price drop
From Porto to Washington, D.C. (WAS)
One-way flight from Porto to Washington, D.C. (WAS)

Find flight deals from Porto to Washington, D.C.

Cheapest flights from Porto to Washington, D.C.
Explore the most affordable flight options available from Porto to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Gotogate deal was found by Cheapflights users on 11/20. 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.
Mon 12/166:00 amOPO - IAD
1 stop19h 20mLufthansa
Mon 12/305:50 pmIAD - OPO
1 stop12h 45mLufthansa
Deal found 11/20$517
This United Airlines deal was found by Cheapflights users on 11/20. 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 12/166:00 amOPO - IAD
2 stops30h 29mUnited Airlines
Mon 12/305:50 pmIAD - OPO
1 stop12h 45mUnited Airlines
Deal found 11/20$526
This Expedia deal was found by Cheapflights users on 11/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/166:15 amOPO - IAD
2 stops14h 35mMultiple Airlines
Mon 12/306:25 pmIAD - OPO
2 stops35h 50mMultiple Airlines
Deal found 11/20$547
This Delta deal was found by Cheapflights users on 11/20. 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 12/166:20 amOPO - DCA
2 stops21h 12mDelta
Mon 12/302:00 pmDCA - OPO
2 stops18h 00mDelta
Deal found 11/20$551
This United Airlines deal was found by Cheapflights users on 11/20. 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 12/166:00 amOPO - BWI
2 stops43h 53mUnited Airlines
Mon 12/305:16 pmBWI - OPO
2 stops61h 24mUnited Airlines
Deal found 11/20$552
This KLM deal was found by Cheapflights users on 11/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2210:55 amOPO - IAD
1 stop33h 50mKLM
Tue 12/316:30 pmIAD - OPO
1 stop11h 20mKLM
Deal found 11/20$595
This Air France deal was found by Cheapflights users on 11/19. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/206:00 amOPO - DCA
2 stops16h 37mKLM
Sun 11/247:35 pmDCA - OPO
2 stops14h 50mKLM
Deal found 11/19$664
This oojo deal was found by Cheapflights users on 11/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/214:25 pmOPO - IAD
1 stop24h 50mTurkish Airlines
Sun 1/59:25 pmIAD - OPO
1 stop37h 00mTurkish Airlines
Deal found 11/19$711
This Expedia deal was found by Cheapflights users on 11/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2111:55 amOPO - IAD
1 stop33h 40mSWISS
Mon 12/306:25 pmIAD - OPO
2 stops35h 50mSWISS
Deal found 11/20$735
This OneTravel deal was found by Cheapflights users on 11/20. 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 OneTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/219:55 pmOPO - IAD
2 stops26h 50mIberia
Mon 12/306:00 pmIAD - OPO
2 stops21h 00mIberia
Deal found 11/20$771
This Mytrip deal was found by Cheapflights users on 11/20. 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.
Mon 12/165:55 pmOPO - DCA
3 stops26h 24mMultiple Airlines
Mon 12/304:00 pmDCA - OPO
3 stops35h 00mMultiple Airlines
Deal found 11/20$867
This Delta deal was found by Cheapflights users on 11/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/206:00 amOPO - BWI
2 stops22h 31mDelta
Sun 11/243:00 pmBWI - OPO
2 stops15h 25mDelta
Deal found 11/19$872

Find flights from Porto to Washington, D.C. within your budget

Customize your flight search to find flights from Porto to Washington, D.C. 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 2,629,791 searches. Data last updated November 20, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Mon 1/13

12:25 pm-10:41 pm

2 stops15h 16m

Washington, D.C. Reagan-National

Sun 1/26

10:13 pm-11:45 am

2 stops32h 32m

$451

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 1/13

12:25 pm-7:45 pm

2 stops36h 20m

Washington, D.C. Dulles Intl

Sun 1/26

6:00 pm-8:00 pm

2 stops21h 00m

$465

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 1/13

5:30 pm-3:35 pm

1 stop27h 05m

Washington, D.C. Dulles Intl

Sun 1/26

6:00 pm-8:00 pm

2 stops21h 00m

$511

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 12/16

6:00 am-8:20 pm

1 stop19h 20m

Washington, D.C. Dulles Intl

Mon 12/30

5:50 pm-11:35 am

1 stop12h 45m

$517

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 12/16

6:00 am-7:29 am

2 stops30h 29m

Washington, D.C. Dulles Intl

Mon 12/30

5:50 pm-11:35 am

1 stop12h 45m

$526

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Mon 1/13

12:00 pm-4:25 pm

1 stop33h 25m

Washington, D.C. Dulles Intl

Mon 5/5

5:35 pm-7:55 am

1 stop33h 20m

$543

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Mon 12/16

6:20 am-10:32 pm

2 stops21h 12m

Washington, D.C. Reagan-National

Mon 12/30

2:00 pm-1:00 pm

2 stops18h 00m

$551

PortoBaltimore

OPO - BWI

OPOBWI

Porto

Mon 12/16

6:00 am-8:53 pm

2 stops43h 53m

Baltimore/Washington

Mon 12/30

5:16 pm-11:40 am

2 stops61h 24m

$552

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Tue 1/14

11:15 am-3:45 pm

1 stop33h 30m

Washington, D.C. Dulles Intl

Thu 5/1

9:20 pm-3:30 pm

1 stop13h 10m

$552

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Sun 12/22

10:55 am-3:45 pm

1 stop33h 50m

Washington, D.C. Dulles Intl

Tue 12/31

6:30 pm-10:50 am

1 stop11h 20m

$595

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/19

Showing 1-10 of 50 results
1
2
3
...
5

Compare providers for flights from Porto to Washington, D.C.

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 Porto to Washington, D.C. in November.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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 Porto-Washington, D.C. flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Porto-Washington, D.C. flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Porto-Washington, D.C. flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Porto-Washington, D.C. 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 Porto-Washington, D.C. 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 Porto to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. 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 Washington, D.C.

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

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

Find hourly flight availability from Porto to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

A simple way to save on the total cost of your ticket is to fly from Porto to Washington, D.C. in the morning. If you’re flexible enough to do this you can expect to save up to 32% on your trip compared to booking a flight at noon.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. 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 Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C., 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 Washington, D.C.

Get insights into the airlines that provide service to Washington, D.C.. 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 Washington, D.C.. Reviews last updated November 20, 2024.
Read reviews from past customers who have flown United Airlines, Iberia and TAP AIR PORTUGAL from Porto to Washington, D.C.. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
8,756 reviews

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

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

8.0
Very good
8,756 reviews
8.0
Very good
8,756 reviews

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

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

7.8
Good
1,350 reviews
8.0
Very good
8,756 reviews

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

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

7.6
Good
1,637 reviews
8.0
Very good
8,756 reviews

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

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

7.4
Good
1,523 reviews
8.0
Very good
8,756 reviews

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Reviews

1 / 10

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

7.4
Good
9,171 reviews
8.0
Very good
8,756 reviews

Crew

8.5

Overall

8.0

Food

7.3

Entertainment

7.9

Comfort

7.9

Boarding

8.2

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 Washington, D.C.. 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 Washington, D.C.?

    Porto (OPO) is the airport you will fly out of if you book a flight from Porto to Washington, D.C.. You should not have trouble finding flights to Washington, D.C. from Porto; the airport handles an average of 0 outbound flights to Washington, D.C. per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Porto airport to Washington, D.C.. It is only a 6.8 mi journey to Porto (OPO) from Porto’s city center.

  • What are the cheapest airlines flying from Porto to Washington, D.C. round-trip?

    According to our current data, American Airlines ($451), Lufthansa ($517), and United Airlines ($526) offers the cheapest pricing from Porto to Washington, D.C.. You may be able to fly from Porto to Washington, D.C. for 34% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Porto to Washington, D.C. one-way?

    One-way options have recently been found by users for as low as $477 on Iberia. Other airlines that offer cheap prices include British Airways from $483 and Royal Air Maroc from $518 one-way.

  • What are the most popular routes from Porto to Washington, D.C.?

  • Can I find deals for flights from Porto to Washington, D.C. that include hotel bookings?

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

  • How can I find direct flights from Porto to Washington, D.C.?

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

  • Can I find deals for business class flights from Porto to Washington, D.C.?

    Yes. Cheapflights offers flight deals from Porto to Washington, D.C. 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 Washington, D.C.?

    Currently, September is the cheapest month in which you can book a flight from Porto to Washington, D.C. (average of $300). Flying from Porto to Washington, D.C. in June is currently the most expensive (average of $376). 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

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 Porto to Washington, D.C.

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Porto to Washington, D.C.

Discover the top airline that operate flights from Porto to Washington, D.C.. 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 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$501Average$812FlexibilityNo cancel feeOn-timeN/A
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.