£241 Cheap Flights from Lisbon (LIS) to Washington (IAD)

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Cheap Flights from Lisbon (LIS) to Washington (IAD)

Prices were available within the past 7 days and start at £241 for one-way flights and £418 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Thu, 23 May - Mon, 27 May
LIS
Lisbon
IAD
Washington
£418 Return, found 5 days ago
£418
Return
found 5 days ago
Select British Airways flight, departing Thu, 23 May from Lisbon to Washington, returning Mon, 27 May, priced at £418 found 5 days ago
Swiss International Air Lines
Tue, 27 Aug - Mon, 16 Sep
LIS
Lisbon
IAD
Washington
£449 Return, found 3 days ago
£449
Return
found 3 days ago
Select Swiss International Air Lines flight, departing Tue, 27 Aug from Lisbon to Washington, returning Mon, 16 Sep, priced at £449 found 3 days ago
Air Canada
Thu, 23 May - Mon, 27 May
LIS
Lisbon
IAD
Washington
£462 Return, found 5 days ago
£462
Return
found 5 days ago
Select Air Canada flight, departing Thu, 23 May from Lisbon to Washington, returning Mon, 27 May, priced at £462 found 5 days ago
Finnair
Thu, 23 May - Mon, 27 May
LIS
Lisbon
IAD
Washington
£486 Return, found 5 days ago
£486
Return
found 5 days ago
Select Finnair flight, departing Thu, 23 May from Lisbon to Washington, returning Mon, 27 May, priced at £486 found 5 days ago
Lufthansa
Mon, 3 Jun - Thu, 6 Jun
LIS
Lisbon
IAD
Washington
£535 Return, found 1 day ago
£535
Return
found 1 day ago
Select Lufthansa flight, departing Mon, 3 Jun from Lisbon to Washington, returning Thu, 6 Jun, priced at £535 found 1 day ago
Aer Lingus
Tue, 13 Aug - Tue, 20 Aug
LIS
Lisbon
IAD
Washington
£545 Return, found 13 hours ago
£545
Return
found 13 hours ago
Select Aer Lingus flight, departing Tue, 13 Aug from Lisbon to Washington, returning Tue, 20 Aug, priced at £545 found 13 hours ago
Scandinavian Airlines
Mon, 5 Aug - Sun, 18 Aug
LIS
Lisbon
IAD
Washington
£622 Return, found 3 days ago
£622
Return
found 3 days ago
Select Scandinavian Airlines flight, departing Mon, 5 Aug from Lisbon to Washington, returning Sun, 18 Aug, priced at £622 found 3 days ago
Fly Play
Fri, 21 Jun - Sun, 30 Jun
LIS
Lisbon
IAD
Washington
£652 Return, found 17 hours ago
£652
Return
found 17 hours ago
Select Fly Play flight, departing Fri, 21 Jun from Lisbon to Washington, returning Sun, 30 Jun, priced at £652 found 17 hours ago
TAP Portugal
Wed, 14 Aug - Wed, 21 Aug
LIS
Lisbon
IAD
Washington
£654 Return, found 13 hours ago
£654
Return
found 13 hours ago
Select TAP Portugal flight, departing Wed, 14 Aug from Lisbon to Washington, returning Wed, 21 Aug, priced at £654 found 13 hours ago
Brussels Airlines
Sun, 2 Jun - Thu, 6 Jun
LIS
Lisbon
IAD
Washington
£703 Return, found 2 hours ago
£703
Return
found 2 hours ago
Select Brussels Airlines flight, departing Sun, 2 Jun from Lisbon to Washington, returning Thu, 6 Jun, priced at £703 found 2 hours ago
Flight from Lisbon to Washington route information
Origin airport
Humberto Delgado
Destination airport
Washington Dulles Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, ITA Airways, Iberia, KLM, Lufthansa, Royal Air Maroc, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Return price
£418
Distance
5732 km

Compare flights from Lisbon to Washington easily and book in confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Lisbon to Washington. Operating between them 7 flights per day, 20 airlines cover the route. And Air Canada, JetBlue, Lufthansa, United Airlines, TAP Air Portugal fly direct, getting you to Washington Dulles Intl. in just 8hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Humberto Delgado to Washington Dulles Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Humberto Delgado (LIS) to Washington Dulles Intl. (IAD) 

The easiest way to view the best deals on flights from Lisbon to Washington today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Humberto Delgado to Washington Dulles Intl. start at just £418 and range up to £703.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Lisbon and Washington
  • booking your flight during May, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Lisbon to Washington flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Humberto Delgado to Washington Dulles Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from Lisbon/Portela Airport to Washington Dulles Intl. Airport (IAD)?
Round-trip tickets between Lisbon Airport and Dulles Intl. Airport start from £418. This is based on fares listed within the last 7 days on Expedia for flights departing within the next year — make your booking ASAP to avoid missing out. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Humberto Delgado Airport (LIS) to IAD?
When it comes to cancellation fees, every airline has different terms and conditions. If you decide to cancel your escape, head to our Customer Service Portal.
How do I find cheap flights from LIS to Dulles Intl. Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for Lisbon Airport to IAD flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Lisbon/Portela Airport to Dulles Intl. Airport?
With a flight distance of 5,800 kilometres from LIS (LIS) to Dulles Intl. Airport (IAD), this is a long flight. Ensure that you drink lots of water and go for a short walk down the aisle every so often.
Which airlines fly direct from Humberto Delgado Airport (LIS) to IAD?
Offering 30 flights each month, TAP Portugal (TP) is a great choice when flying directly from Lisbon/Portela Airport to IAD.
Are Humberto Delgado Airport (LIS) to Dulles Intl. Airport flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Humberto Delgado Airport (LIS) to Washington Dulles Intl. Airport (IAD) at the last minute could save you some serious cash. However, it could end up costing a good deal more! If you’d prefer to err on the side of caution, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to 12 months in advance. If your preferred carrier hasn’t released tickets yet, check back often as deals are updated all the time on Expedia.
*Available to Expedia members.