£310 Cheap Flights from Washington (IAD) to Lisbon (LIS)

View £310 flight on Wed, 21 Oct 2026Opens in a new window

Flight 1

Popular airlines from Washington Dulles International Airport (IAD) to Humberto Delgado Airport (LIS)

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

Prices were available within the past 7 days and start at £310 for one-way flights and £564 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Royal Air Maroc
Mon, 2 Nov - Mon, 9 Nov
IAD
Washington
LIS
Lisbon
£564 Return, found 1 day ago
£564
Return
found 1 day ago
Select Royal Air Maroc flight, departing Mon, 2 Nov from Washington to Lisbon, returning Mon, 9 Nov, priced at £564 found 1 day ago
Turkish Airlines
Thu, 26 Nov - Thu, 3 Dec
IAD
Washington
LIS
Lisbon
£583 Return, found 3 days ago
£583
Return
found 3 days ago
Select Turkish Airlines flight, departing Thu, 26 Nov from Washington to Lisbon, returning Thu, 3 Dec, priced at £583 found 3 days ago
Scandinavian Airlines
Mon, 16 Nov - Mon, 23 Nov
IAD
Washington
LIS
Lisbon
£590 Return, found 5 days ago
£590
Return
found 5 days ago
Select Scandinavian Airlines flight, departing Mon, 16 Nov from Washington to Lisbon, returning Mon, 23 Nov, priced at £590 found 5 days ago
TAP Portugal
Wed, 25 Nov - Wed, 2 Dec
IAD
Washington
LIS
Lisbon
£706 Return, found 9 hours ago
£706
Return
found 9 hours ago
Select TAP Portugal flight, departing Wed, 25 Nov from Washington to Lisbon, returning Wed, 2 Dec, priced at £706 found 9 hours ago
Finnair
Wed, 2 Dec - Wed, 9 Dec
IAD
Washington
LIS
Lisbon
£741 Return, found 3 days ago
£741
Return
found 3 days ago
Select Finnair flight, departing Wed, 2 Dec from Washington to Lisbon, returning Wed, 9 Dec, priced at £741 found 3 days ago
KLM
Tue, 3 Nov - Tue, 10 Nov
IAD
Washington
LIS
Lisbon
£742 Return, found 1 day ago
£742
Return
found 1 day ago
Select KLM flight, departing Tue, 3 Nov from Washington to Lisbon, returning Tue, 10 Nov, priced at £742 found 1 day ago
Air France
Tue, 3 Nov - Tue, 10 Nov
IAD
Washington
LIS
Lisbon
£748 Return, found 1 day ago
£748
Return
found 1 day ago
Select Air France flight, departing Tue, 3 Nov from Washington to Lisbon, returning Tue, 10 Nov, priced at £748 found 1 day ago
Virgin Atlantic
Tue, 8 Dec - Tue, 15 Dec
IAD
Washington
LIS
Lisbon
£753 Return, found 3 days ago
£753
Return
found 3 days ago
Select Virgin Atlantic flight, departing Tue, 8 Dec from Washington to Lisbon, returning Tue, 15 Dec, priced at £753 found 3 days ago
Lufthansa
Tue, 8 Dec - Tue, 15 Dec
IAD
Washington
LIS
Lisbon
£755 Return, found 3 days ago
£755
Return
found 3 days ago
Select Lufthansa flight, departing Tue, 8 Dec from Washington to Lisbon, returning Tue, 15 Dec, priced at £755 found 3 days ago
British Airways
Wed, 25 Nov - Wed, 2 Dec
IAD
Washington
LIS
Lisbon
£763 Return, found 9 hours ago
£763
Return
found 9 hours ago
Select British Airways flight, departing Wed, 25 Nov from Washington to Lisbon, returning Wed, 2 Dec, priced at £763 found 9 hours ago

Alternative airports near Lisbon

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Humberto Delgado LIS. Cheapest option available. Flights from £751
LIS
Humberto Delgado
Cheapest
Flights from £751

Find the cheapest month to fly from Washington (IAD) to Lisbon (LIS)

April is typically the cheapest month to fly

From £397 - £891 per traveller.

Frequently asked questions

How much is a flight from IAD to LIS?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price available for a round-trip flight from IAD to Lisbon/Portela Airport was £564. Fares this good don't last long, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Washington Dulles Intl. Airport (IAD) to Humberto Delgado Airport (LIS)?
This differs from airline to airline, as each has its own set of terms and conditions. Visit the Customer Service Portal, where you'll find simple instructions on how to cancel online.
How do I find cheap flights from Dulles Intl. Airport to Humberto Delgado Airport (LIS) 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 IAD to LIS flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Washington Dulles Intl. Airport (IAD) to Lisbon/Portela Airport?
You'll have 5,800 kilometres to cover on the long-haul Chantilly to Lisbon District route. Dress in layers of comfortable clothes and consider taking a pair of noise-cancelling earphones.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to Humberto Delgado Airport (LIS)?
Flying directly from IAD to LIS is simple with TAP Portugal (TP). This popular airline operates 30 flights every month.
Are Dulles Intl. Airport to Lisbon Airport flight tickets cheaper when they're purchased at the last minute?
Flight prices fluctuate, so there are no guarantees. While last-minute flight deals between IAD and Humberto Delgado Airport (LIS) are possible, it's also a good idea to keep a close eye on prices well before you fly. In fact, some airlines advertise their prices up to a year ahead of the departure date. Expedia is continuously updating the best airfare bargains around, so keep checking back and be ready to lock in your seat when fare prices drop.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Humberto Delgado
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, JetBlue Airways, KLM, Lufthansa, Royal Air Maroc, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United, Virgin Atlantic
Return price
£563
Distance
5732 km
Average flight time
12 hours 15 mins

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