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Cheap Flights from Washington D.C. to Porto

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Flight deals from Washington D.C. to Porto

Looking for a cheap last-minute deal or the best return flight from Washington D.C. to Porto Airport? If you want to travel next month, return fares start from $1,720. Find the lowest prices on one-way and return tickets right here.
Porto.$1,214 per passenger.Departing Tue, 17 Nov, returning Tue, 24 Nov.Return flight with United and Lufthansa.Outbound indirect flight with United, departs from Washington Ronald Reagan on Tue, 17 Nov, arriving in Porto.Inbound indirect flight with Lufthansa, departs from Porto on Tue, 24 Nov, arriving in Washington Dulles.Price includes taxes and charges.From $1,214, select.
Porto.$1,222 per passenger.Departing Tue, 19 Jan, returning Tue, 26 Jan.Return flight with Delta.Outbound indirect flight with Delta, departs from Washington Dulles on Tue, 19 Jan, arriving in Porto.Inbound indirect flight with Delta, departs from Porto on Tue, 26 Jan, arriving in Washington Dulles.Price includes taxes and charges.From $1,222, select.
Porto.$1,225 per passenger.Departing Wed, 25 Nov, returning Wed, 2 Dec.Return flight with KLM.Outbound indirect flight with KLM, departs from Washington Dulles on Wed, 25 Nov, arriving in Porto.Inbound indirect flight with KLM, departs from Porto on Wed, 2 Dec, arriving in Washington Dulles.Price includes taxes and charges.From $1,225, select.
Porto.$1,229 per passenger.Departing Tue, 26 Jan, returning Tue, 2 Feb.Return flight with Delta.Outbound indirect flight with Delta, departs from Washington Dulles on Tue, 26 Jan, arriving in Porto.Inbound indirect flight with Delta, departs from Porto on Tue, 2 Feb, arriving in Washington Dulles.Price includes taxes and charges.From $1,229, select.
Porto.$1,230 per passenger.Departing Mon, 26 Oct, returning Mon, 2 Nov.Return flight with Air France and KLM.Outbound indirect flight with Air France, departs from Washington Dulles on Mon, 26 Oct, arriving in Porto.Inbound indirect flight with KLM, departs from Porto on Mon, 2 Nov, arriving in Washington Dulles.Price includes taxes and charges.From $1,230, select.
Porto.$1,247 per passenger.Departing Tue, 18 Aug, returning Tue, 25 Aug.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Washington Dulles on Tue, 18 Aug, arriving in Porto.Inbound indirect flight with TAP Air Portugal, departs from Porto on Tue, 25 Aug, arriving in Washington Dulles.Price includes taxes and charges.From $1,247, select.
Porto.$1,267 per passenger.Departing Wed, 30 Dec, returning Thu, 7 Jan.Return flight with United.Outbound indirect flight with United, departs from Washington Ronald Reagan on Wed, 30 Dec, arriving in Porto.Inbound indirect flight with United, departs from Porto on Thu, 7 Jan, arriving in Washington Dulles.Price includes taxes and charges.From $1,267, select.
Porto.$1,268 per passenger.Departing Tue, 13 Oct, returning Tue, 20 Oct.Return flight with United.Outbound indirect flight with United, departs from Washington Ronald Reagan on Tue, 13 Oct, arriving in Porto.Inbound indirect flight with United, departs from Porto on Tue, 20 Oct, arriving in Washington Dulles.Price includes taxes and charges.From $1,268, select.
Porto.$1,281 per passenger.Departing Wed, 16 Dec, returning Wed, 23 Dec.Return flight with Delta.Outbound indirect flight with Delta, departs from Washington Ronald Reagan on Wed, 16 Dec, arriving in Porto.Inbound indirect flight with Delta, departs from Porto on Wed, 23 Dec, arriving in Washington Dulles.Price includes taxes and charges.From $1,281, select.
Porto.$1,289 per passenger.Departing Sun, 6 Sep, returning Fri, 18 Sep.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Sun, 6 Sep, arriving in Porto.Inbound indirect flight with Turkish Airlines, departs from Porto on Fri, 18 Sep, arriving in Washington Dulles.Price includes taxes and charges.From $1,289, select.
Porto.$1,293 per passenger.Departing Tue, 29 Sep, returning Tue, 6 Oct.Return flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Washington Dulles on Tue, 29 Sep, arriving in Porto.Inbound indirect flight with Turkish Airlines, departs from Porto on Tue, 6 Oct, arriving in Washington Dulles.Price includes taxes and charges.From $1,293, select.
Porto.$1,297 per passenger.Departing Tue, 25 Aug, returning Tue, 1 Sep.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Washington Dulles on Tue, 25 Aug, arriving in Porto.Inbound indirect flight with TAP Air Portugal, departs from Porto on Tue, 1 Sep, arriving in Washington Dulles.Price includes taxes and charges.From $1,297, select.
Porto.$1,308 per passenger.Departing Fri, 26 Mar, returning Sat, 3 Apr.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Washington Dulles on Fri, 26 Mar, arriving in Porto.Inbound indirect flight with TAP Air Portugal, departs from Porto on Sat, 3 Apr, arriving in Washington Dulles.Price includes taxes and charges.From $1,308, select.
Porto.$1,313 per passenger.Departing Sun, 2 May, returning Sun, 9 May.Return flight with Air France and KLM.Outbound indirect flight with Air France, departs from Washington Dulles on Sun, 2 May, arriving in Porto.Inbound indirect flight with KLM, departs from Porto on Sun, 9 May, arriving in Washington Dulles.Price includes taxes and charges.From $1,313, select.
Porto.$1,375 per passenger.Departing Wed, 15 Jul, returning Wed, 22 Jul.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Washington Dulles on Wed, 15 Jul, arriving in Porto.Inbound indirect flight with TAP Air Portugal, departs from Porto on Wed, 22 Jul, arriving in Washington Dulles.Price includes taxes and charges.From $1,375, select.
Porto.$1,375 per passenger.Departing Tue, 28 Jul, returning Tue, 4 Aug.Return flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Washington Dulles on Tue, 28 Jul, arriving in Porto.Inbound indirect flight with TAP Air Portugal, departs from Porto on Tue, 4 Aug, arriving in Washington Dulles.Price includes taxes and charges.From $1,375, select.

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

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington D.C. to Porto flights are currently cheapest in November.
May
Find prices
Jun
from $1,718
Jul
from $1,375
Aug
from $1,247
Sep
from $1,289
Oct
from $1,268
Nov
from $1,214
Dec
from $1,281
Jan
from $1,222
Feb
Find prices
Mar
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Apr
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Washington D.C. to Porto: Alternative routes

Compare routes from Washington D.C. to Porto below. You may find an airport to fly into that's cheaper, faster, or easier than Porto.

Porto

12km from central Porto
ClosestCheapest
from $1,214
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Vila Real

76km from central Porto
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Viseu G. Lobato

81km from central Porto
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Washington D.C. to Porto: Flight information

The things to know before you go.
Cheapest flight found$1,214
Cheapest month to flyNovember

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

The best price we found for a return flight from Washington D.C. to Porto is $1,214. 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 Washington D.C. to Porto. But we found flights with one stop from $1,214.
As of May 2026, there are no flights flying from Washington D.C. to Porto.
The cheapest month to fly from Washington D.C. to Porto is usually November.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington D.C. to Porto Airport on Tuesday, 17 November 2026.
No airlines currently offer direct flights between Washington D.C. and Porto Airport. 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 Porto 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 Porto is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Porto is United .

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

  • Porto Airport is located in Porto. The city follows the UTC+0 timezone and is five hours ahead of Washington DC.

  • Your flight from Washington DC to OPO won't wait if you're late, so get to the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • With more people on the move during busy periods like July, get to the terminal earlier than usual. Two hours for domestic flights and as much as four for international journeys will allow extra time for delays. Remember things also get busy during major holidays like Christmas.

Airports in Washington DC

Ronald Reagan Washington National Airport (DCA)

  • A stopover is the perfect opportunity to break up your trip and possibly even visit a new city. When searching for cheap flights from Washington DC to OPO leaving from Ronald Reagan Washington National Airport (DCA), deselect the 'Direct flights only' box to get ideas for where to visit along the way. Top options include:

    • New York John F. Kennedy International Airport (JFK)

    • Newark Liberty International Airport (EWR)

    • Boston Logan International Airport (BOS)

  • DCA is about 6 kilometres from central Washington DC. If you're ride-sharing, driving or catching a taxi from the centre, it'll take you 10 minutes or so to get there, depending on the traffic. If you're planning to take public transport, expect the journey time to be around 25 minutes.

  • Booked an early flight from Washington DC to Porto Airport? Avoid the stress of rushing to the terminal (and get some bonus sleep) by picking one of these stays close to Ronald Reagan Washington National Airport:

  • 71% of flights departing from Ronald Reagan Washington National Airport land at their destination on schedule.

  • DCA is located at 1 Aviation Circle.

Washington Dulles International Airport (IAD)

  • Tick a new place off your list or just take a moment to recharge with a stopover. If you'd like to break up your flight from Washington DC to Porto Airport, check out these options when setting off from Washington Dulles International Airport:

    • Newark Liberty International Airport (EWR)

    • Boston Logan International Airport (BOS)

    • Toronto Pearson International Airport (YYZ)

  • With public transport, you can travel from central Washington DC to IAD in about 1 hour 10 minutes. The airport is roughly 40 kilometres away, and making the trip by car takes approximately 45 minutes.

  • Want to treat yourself to an extra night away before catching your Washington DC to OPO flight? Check in to a hotel near Washington Dulles International Airport before your holiday officially begins. These stays have a room with your name on it:

  • Washington Dulles International Airport has an on-time performance of 77%. This figure sheds light on how frequently flights that leave from this airport reach their destination on schedule.

  • The address for IAD is 1 Saarinen Circle.

Baltimore Washington International Airport (BWI)

  • Book a plane ticket from Washington DC to Porto Airport (OPO) out of Baltimore Washington International Airport (BWI) with one or more stops. Some popular stopovers between BWI and OPO are:

    • New York John F. Kennedy International Airport (JFK)

    • Boston Logan International Airport (BOS)

    • Keflavik Airport (KEF)

  • From central Washington DC, BWI is around 48 kilometres away. It takes roughly 40 minutes to get to the airport by car and 50 minutes or so on public transport.

  • Sleep a little longer, move a little slower, and still make your Washington DC to Porto Airport flight with plenty of time to spare. These hotels near Baltimore Washington International Airport make getting to the terminal a breeze if you're flying out early:

  • Flights that take off from BWI reach their destination within the scheduled time frame 77% of the time.

About Porto Airport (OPO)

  • If you're arriving on a late flight from Washington DC to Porto Airport, few things beat the convenience of staying near the terminal. Pick up your luggage at baggage claim and then be showered and relaxing not long after at one of these hotels near OPO:

  • Secure the lowest price by reserving your ride around three weeks ahead of your Washington DC to Porto Airport flight.

Getting from Porto Airport (OPO) to central Porto

  • Central Porto is around 11 kilometres from Porto Airport and takes about 20 minutes to reach by car. See what your options are for making the trip into the city, whether that's with a car hire, taxi or ride-share.

  • If you're travelling on public transport, expect a journey of around 30 minutes.

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

  • Currently, $569 is the best price we've found for a one-way ticket from Washington DC to Porto Airport. The cheapest price for a return flight is $1,214. Remember fares may change due to demand at the time of booking.

  • Don't leave everything to the last moment. You're more likely to find cheap flights from Washington DC to OPO if you book ahead. Airlines often have some great early bird discounts.

  • If you can be flexible with your travel plans, try using the 'Whole month' search tool. It'll show you the cheapest price across the month when searching for your Washington DC to Porto Airport ticket.

  • You don't need to check every day to find out if fares have dropped when you set up a Price Alert. We'll notify you as soon as a better deal comes up on plane tickets from Washington DC to OPO.

  • Filters make it easier to land a deal on your flight from Washington DC to Porto Airport. Pick the flight times, carriers and stops that look good to you. Then sort the results by 'Cheapest' to find the best price quickly.

The best time to fly from Washington DC to Porto Airport (OPO)

  • December is the quietest month for flights from Washington DC to Porto Airport (OPO), while August is the most popular. Work out the ideal time to go to Porto based on whether you prefer a laid-back vibe or a more bustling atmosphere.

  • Lock in a Washington DC to OPO plane ticket departing in August if you're eager to explore the city during its warmest month. You can expect temperatures in Porto to range from 14ºC to 32ºC.

  • If you like cooler conditions, search for a cheap ticket from Washington DC to Porto Airport in January when temperatures are between 3ºC and 14ºC.

More about Porto

  • Start your Porto trip off on the right foot by choosing the perfect place to stay. As soon as you've booked your flight from Washington DC to Porto Airport, explore our range of hotels including:

  • Ribeira District and Rio Douro are a couple of major attractions to add to your Porto to-do list. Keep the sightseeing going at Livraria Lello.

Explore more of Portugal

  • You've seen Porto, now it's time to explore other corners of Portugal. Journey about 290 kilometres south to Lisbon to tick off its top sights. From Pasteis de Belém to belém and Real Mosteiro de Santa Maria de Belém, there's plenty to keep you on the go.

  • If you're looking to explore another major stop in Portugal, consider Amadora, roughly 274 kilometres south of Porto. Roman Villa, Park Fantasia and Palácio dos Condes da Lousã are key highlights.

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

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