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C$448 Cheap Flights from Washington Dulles (IAD) to Lisbon (LIS)

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Flight deals from Washington Dulles to Lisbon

Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.
Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.
Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.
Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.
Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.
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Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.
Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.
Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.
Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.
Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.
Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.
Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.
Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.
Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.
Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.
Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.Looking for a cheap flight from Washington Dulles to Lisbon? These deals are the lowest price flight tickets from Washington Dulles to Lisbon found in the last 4 days.

Find the cheapest month to fly from Washington Dulles to Lisbon

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Lisbon flights are currently cheapest in October.
Jun.
from C$685
Jul.
from C$456
Aug.
from C$454
Sep.
from C$452
Oct.
from C$448
Nov.
from C$453
Dec.
from C$496
Jan.
from C$506
Feb.
from C$463
Mar.
from C$561
Apr.
from C$545
May
from C$558

Which airlines fly from Washington Dulles to Lisbon?

Washington Dulles to Lisbon: Alternative routes

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

Lisbon

8km from central Lisbon
ClosestCheapest
from C$448
Search flights

Cascais Municipal Aerodrome

19km from central Lisbon
Search flights

Washington D.C. to Lisbon: Flight information

The things to know before you go.
Cheapest flight foundC$448
Cheapest month to flyOctober
Average flight time7 hrs, 13 mins
Most popular airlineLufthansa
Average flights per week46

Finding cheap flights from Washington Dulles to Lisbon: Frequently asked questions

The best price we found for a return flight from Washington Dulles to Lisbon is C$928. 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.
7 hours and 13 minutes is the average flight time from Washington Dulles to Lisbon.
Lufthansa, TAP Air Portugal and jetBlue fly direct from Washington Dulles to Lisbon.
As of June 2026, there are 46 flights per week flying from Washington Dulles to Lisbon.
The cheapest month to fly from Washington Dulles to Lisbon is usually January.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Lisbon Airport on Monday, January 11, 2027.
Yes – the average flight time is 7 hours and 13 minutes.
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 Lisbon 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 Lisbon is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Scandinavian Airlines and TAP Air Portugal offer the cheapest flight tickets to Lisbon.

Traveling from Washington Dulles International Airport (IAD) to Lisbon Portela Airport (LIS): what you need to know

  • A direct flight from Washington Dulles International Airport to Lisbon Portela Airport takes an average of 7 hours 17 minutes. The timezone in Lisbon is UTC+0, making it 4 hours ahead of Washington DC.

  • Take your pick of 22 weekly flights from Washington Dulles International Airport to Lisbon Portela Airport. The 09:15 departure with TAP Portugal is the earliest flight available from IAD to LIS. TAP Portugal operates the latest service of the day at 23:30 if you're not into early starts.

  • During popular months like July, you'll want to get to the airport earlier than normal. Arrive two hours before domestic departures and four hours ahead for an international flight whenever you're flying during peak periods in general.

  • Getting to Lisbon (and exploring more of Portugal!) is a breeze with United Airlines. This popular airline offers direct flights from Washington Dulles International Airport to Lisbon Portela Airport.

  • If you want to break up your flight from Washington Dulles International Airport to Lisbon Portela Airport, add a stopover to your trip. Simply deselect 'Direct flights only' to find a city that interests you. Popular stopovers on the IAD - LIS route are:

    • Newark Liberty International Airport

    • Philadelphia International Airport

    • Mohamed V International Airport

  • Remember, you might need a visa to enter Portugal. Visa regulations can differ and travel documentation requirements frequently change. Before booking your cheap ticket from IAD to LIS, check with your airline and your destination country's local consulate or embassy for up-to-date information.

How to find the cheapest flights from Washington Dulles International Airport (IAD) to Lisbon Portela Airport (LIS)

  • C$448 is currently the best price for a one-way ticket from Washington Dulles International Airport to Lisbon Portela Airport. Return flights start from C$928. These prices can change based on demand and availability.

  • Book 3 months before traveling. After looking at the numbers on our calendar, this is how far you should book ahead to secure cheap flight tickets from IAD to LIS.

  • November is the cheapest month for flight tickets from Washington Dulles International Airport to Lisbon Portela Airport. If you're looking to travel at a different time of year, the 'Whole month' tool will give you the lowest airfares for each month.

  • Sign into your online account or use the app to set up a Price Alert. We'll notify you straight away if there's a better deal on this route. It doesn't take long, and it'll save you time looking for cheap flight tickets from IAD to LIS every day.

  • Take advantage of filters to find the perfect trip for you. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Washington Dulles International Airport to Lisbon Portela Airport, use the 'Sort by' tool. You can also filter by airline, departure and arrival times, and number of stops.

Handy information about Washington Dulles International Airport (IAD)

  • Washington Dulles International Airport is about 56 kilometres from central Washington DC. If you're catching a cab, ride-sharing or driving from the center, it'll take 51 minutes or so to get there, depending on traffic. If you're planning to take public transport, expect the travel time to be approximately 3 hours and 26 minutes.

  • After an easy way to start to your journey? Stay near IAD. Whether you're boarding an early flight from Washington Dulles International Airport to Lisbon Portela Airport or just don't want to be rushed, these hotels are ideal:

Arriving at Lisbon Portela Airport (LIS)

Getting from Lisbon Portela Airport (LIS) to central Lisbon

  • Lisbon Portela Airport is approximately 10 kilometres from the center of Lisbon. With a car rental or if you're catching a cab, the drive is about 22 minutes.

  • It takes roughly 59 minutes if you're traveling by public transport.

When to fly to Lisbon Portela Airport (LIS)

  • It's time to choose your trip dates for your flight from Washington Dulles International Airport to Lisbon Portela Airport. June is the most popular month to visit Lisbon. If you want a more peaceful vibe, go in February.

  • When reserving your flight from Washington Dulles International Airport to Lisbon Portela Airport, consider the type of weather you enjoy. August is the warmest month in Lisbon, with temperatures ranging from 16ºC to 29ºC.

  • January sees average temperatures of between 8ºC and 16ºC. Search for cheap flight tickets from IAD to LIS sometime then if you want to travel in cooler conditions.

More about Lisbon

Complete your Lisbon trip with hotels and a car rental

  • You've got your cheap ticket to Lisbon Portela Airport — next up is finding a place to stay, and perhaps even your own set of wheels. We've compared prices across hundreds of companies to bring you the top hotels and car rental deals in Lisbon.

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

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.