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C$504 Cheap Flights from Porto (OPO) to Washington D.C. (WASA)

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Flight deals from Porto to Washington D.C.

Looking for a cheap last-minute deal or the best return flight from Porto Airport to Washington D.C.? If you want to travel next month, return fares start from C$913. Find the lowest prices on one-way and return tickets right here.
Washington D.C..C$504 per passenger.Departing Tue., Jan. 12.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from Porto on Tue., Jan. 12, arriving in Washington Ronald Reagan.Price includes taxes and charges.From C$504, select.
Washington D.C..C$504 per passenger.Departing Fri., Dec. 18.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from Porto on Fri., Dec. 18, arriving in Washington Ronald Reagan.Price includes taxes and charges.From C$504, select.
Washington D.C..C$537 per passenger.Departing Thu., May 28.One-way flight with Ryanair.Outbound indirect flight with Ryanair, departs from Porto on Thu., May 28, arriving in Washington Ronald Reagan.Price includes taxes and charges.From C$537, select.
Washington D.C..C$580 per passenger.Departing Fri., Jun. 5.One-way flight with Royal Air Maroc.Outbound indirect flight with Royal Air Maroc, departs from Porto on Fri., Jun. 5, arriving in Washington Dulles.Price includes taxes and charges.From C$580, select.
Washington D.C..C$580 per passenger.Departing Sun., Oct. 25.One-way flight with Royal Air Maroc.Outbound indirect flight with Royal Air Maroc, departs from Porto on Sun., Oct. 25, arriving in Washington Dulles.Price includes taxes and charges.From C$580, select.
Washington D.C..C$584 per passenger.Departing Wed., Nov. 4.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from Porto on Wed., Nov. 4, arriving in Washington Ronald Reagan.Price includes taxes and charges.From C$584, select.
Washington D.C..C$584 per passenger.Departing Wed., Sep. 16.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from Porto on Wed., Sep. 16, arriving in Washington Ronald Reagan.Price includes taxes and charges.From C$584, select.
Washington D.C..C$593 per passenger.Departing Tue., Aug. 25.One-way flight with Iberia.Outbound indirect flight with Iberia, departs from Porto on Tue., Aug. 25, arriving in Washington Dulles.Price includes taxes and charges.From C$593, select.
Washington D.C..C$690 per passenger.Departing Tue., Jul. 7.One-way flight with Iberia.Outbound indirect flight with Iberia, departs from Porto on Tue., Jul. 7, arriving in Washington Dulles.Price includes taxes and charges.From C$690, select.

Find the cheapest month to fly from Porto to Washington D.C.

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Porto to Washington D.C. flights are currently cheapest in December.
May
from C$537
Jun.
from C$580
Jul.
from C$690
Aug.
from C$593
Sep.
from C$584
Oct.
from C$580
Nov.
from C$584
Dec.
from C$504
Jan.
from C$504
Feb.
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Mar.
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Apr.
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Alternative Porto to Washington D.C. routes

Looking for the cheapest, fastest or easiest route from Porto to Washington D.C.? You could fly into the following airports instead.

Washington Ronald Reagan

5km from central Washington D.C.
ClosestCheapest
from C$504
Search flights

Camp Springs Andrews AFB

17km from central Washington D.C.
Search flights

Washington Dulles

37km from central Washington D.C.
Cheapest
from C$504
Search flights

Baltimore Washington International

44km from central Washington D.C.
from C$584
Search flights

Manassas

47km from central Washington D.C.
Search flights

Porto to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight foundC$504
Cheapest month to flyDecember

Finding cheap flights from Porto to Washington D.C.: Frequently asked questions

There are 5 airports in Washington D.C.: Washington Ronald Reagan, Camp Springs Andrews AFB, Washington Dulles, Baltimore Washington International, and Manassas.
The best price we found for a return flight from Porto to Washington D.C. is C$905. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Porto to Washington D.C.. But we found flights with one or more stops from C$905.
As of May 2026, there are no flights flying from Porto to Washington D.C..
The cheapest month to fly from Porto to Washington D.C. is usually August.
If you're flying from Porto Airport, the cheapest airport near Washington D.C. is Washington Dulles – which is 36.5 km away from the centre of Washington D.C.. We've found flights into this airport from C$905.
No airlines currently offer direct flights between Porto Airport and Washington D.C.. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Washington D.C. but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 17°C. July is typically the warmest month in Washington D.C., when it usually averages around 31°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -4°C. The rainiest month is September.
Currently, Lufthansa offers the cheapest flight tickets to Washington D.C..

Travelling from Porto Airport (OPO) to Washington DC: what you need to know

  • Washington DC is 4 hours behind Porto, where Porto Airport is located. Washington DC operates on the UTC-4 timezone.

  • To ensure you catch your flight from OPO to Washington DC, leave plenty of time for things like check-in and baggage drop. Turning up two hours ahead of international departures and an hour before domestic flights is the general travel rule.

  • During popular months such as August, you'll want to get to the airport earlier than normal. Plan to arrive two hours before a domestic departure and four hours ahead for international flights whenever you're flying during a peak period in general.

  • Stopovers are the ideal opportunity to break up your journey — and maybe even explore a different city. When browsing flights from OPO to Washington DC, uncheck the 'Direct flights only' box to see where you can visit along the way. Here are some options to consider:

    • Frankfurt Airport (FRA)

    • Logan International Airport (BOS)

    • John F. Kennedy International Airport (JFK)

  • If you hold a passport from Portugal, you'll need an ETA to visit United States. This applies when booking a cheap ticket from Porto Airport to Washington DC for tourism purposes. The rules may differ if you're travelling for work or other reasons. Always check the visa rules before you book and definitely before flying.

  • The journey from central Porto to OPO takes around 49 minutes on public transport. If you drive, ride-share or get a cab, you'll cover the 16 kilometres in 21 minutes or so, depending on traffic.

  • After a stress-free start to your journey? Stay near OPO. Whether you're taking an early flight from Porto Airport to Washington DC or just don't like being rushed, these hotels have you covered:

How to find the cheapest flights from Porto Airport (OPO) to Washington DC

  • C$504 is the lowest price for a one-way ticket from Porto Airport to Washington DC. Return flights start at C$905. These fares can change depending on availability and demand.

  • To find cheap tickets from OPO to Washington DC, book as early as possible. Airlines usually offer lower fares when flights are first made available.

  • The 'Whole month' search function shows you the cheapest tickets from Porto Airport to Washington DC across every month. It's an easy way to find a bargain if your dates are flexible.

  • Log into your online account or use the app to create a Price Alert. We'll get in touch right away if there's a better deal on this route. It's simple to do, and it'll save you from looking for cheap tickets from OPO to Washington DC every day.

  • Use the filters to tailor your flights from Porto Airport to Washington DC. Pick your ideal departure and arrival times, number of stops and airlines. Alternatively, sort your results by 'Cheapest' to find the best deals.

Airports in Washington DC

Ronald Reagan National Airport (DCA)

  • Ronald Reagan National Airport (DCA) is around 8 kilometres from the centre of Washington DC. With a cab or in your own car rental, the drive is about 16 minutes.

  • It takes roughly 43 minutes to get there using public transport.

  • Consider staying in a hotel near DCA if you're catching a late flight from Porto Airport to Washington DC. Select one of these options and avoid the hassle of a long transfer:

Washington Dulles International Airport (IAD)

Best time to go to Washington DC

  • July is the most popular month for flights from Porto Airport to Washington DC. To escape the crowds, travel to Washington DC in May when it's quieter.

  • Book your flight from Porto Airport to Washington DC for July to visit the city during its warmest month. You can expect temperatures to range from 19ºC to 33ºC.

  • Look for cheap flights from OPO to Washington DC in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -6ºC and 10ºC on average.

More about Washington DC

  • After booking your flight from Porto Airport to Washington DC, think about where to rest your head in this city. Make one of these accommodation options your base for exploring Washington DC:

  • White House Historical Association and The White House are just the start of the leading attractions to put on your Washington DC must-do list. Keep the momentum going by heading to National Mall.

Complete your Washington DC trip with a car rental

  • We use the same magic that helped you find your cheap flight from Porto Airport to Washington DC to track down incredible deals on car rentals. Search for your ride in seconds and compare offers in one place. Plus we give you everything you need to know about car rentals in Washington DC, from the most popular rental company to the best time to book.

Plan the rest of your trip from Porto to Washington D.C.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.