€359 Cheap Flights Washington to Lisbon (IAD-LIS)

View €359 flight on Thu, 23 Jul 2026Opens in a new window

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

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Cheap flights from Washington to Lisbon (IAD-LIS)

Prices were available within the past 7 days and start at €359 for one-way flights and €686 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

TAP Portugal
Sat, 25 Apr - Fri, 1 May
IAD
Washington
LIS
Lisbon
€686 Return, found 4 days ago
€686
Return
found 4 days ago
Select TAP Portugal flight, departing Sat, 25 Apr from Washington to Lisbon, returning Fri, 1 May, priced at €686 found 4 days ago
Scandinavian Airlines
Mon, 4 May - Tue, 12 May
IAD
Washington
LIS
Lisbon
€731 Return, found 2 days ago
€731
Return
found 2 days ago
Select Scandinavian Airlines flight, departing Mon, 4 May from Washington to Lisbon, returning Tue, 12 May, priced at €731 found 2 days ago
Scandinavian Airlines
Mon, 4 May - Wed, 13 May
IAD
Washington
LIS
Lisbon
€738 Return, found 6 days ago
€738
Return
found 6 days ago
Select Scandinavian Airlines flight, departing Mon, 4 May from Washington to Lisbon, returning Wed, 13 May, priced at €738 found 6 days ago
Royal Air Maroc
Sun, 3 May - Tue, 12 May
IAD
Washington
LIS
Lisbon
€767 Return, found 10 hours ago
€767
Return
found 10 hours ago
Select Royal Air Maroc flight, departing Sun, 3 May from Washington to Lisbon, returning Tue, 12 May, priced at €767 found 10 hours ago
Scandinavian Airlines
Sun, 3 May - Tue, 12 May
IAD
Washington
LIS
Lisbon
€795 Return, found 10 hours ago
€795
Return
found 10 hours ago
Select Scandinavian Airlines flight, departing Sun, 3 May from Washington to Lisbon, returning Tue, 12 May, priced at €795 found 10 hours ago
TAP Portugal
Mon, 4 May - Tue, 12 May
IAD
Washington
LIS
Lisbon
€798 Return, found 2 days ago
€798
Return
found 2 days ago
Select TAP Portugal flight, departing Mon, 4 May from Washington to Lisbon, returning Tue, 12 May, priced at €798 found 2 days ago
Royal Air Maroc
Thu, 23 Jul - Wed, 5 Aug
IAD
Washington
LIS
Lisbon
€822 Return, found 3 days ago
€822
Return
found 3 days ago
Select Royal Air Maroc flight, departing Thu, 23 Jul from Washington to Lisbon, returning Wed, 5 Aug, priced at €822 found 3 days ago
Turkish Airlines
Mon, 4 May - Wed, 13 May
IAD
Washington
LIS
Lisbon
€854 Return, found 6 days ago
€854
Return
found 6 days ago
Select Turkish Airlines flight, departing Mon, 4 May from Washington to Lisbon, returning Wed, 13 May, priced at €854 found 6 days ago
Aer Lingus
Sat, 25 Apr - Fri, 1 May
IAD
Washington
LIS
Lisbon
€875 Return, found 4 days ago
€875
Return
found 4 days ago
Select Aer Lingus flight, departing Sat, 25 Apr from Washington to Lisbon, returning Fri, 1 May, priced at €875 found 4 days ago
JetBlue Airways
Sun, 3 May - Tue, 12 May
IAD
Washington
LIS
Lisbon
€1,106 Return, found 10 hours ago
€1,106
Return
found 10 hours ago
Select JetBlue Airways flight, departing Sun, 3 May from Washington to Lisbon, returning Tue, 12 May, priced at €1,106 found 10 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 €902
LIS
Humberto Delgado
Cheapest
Flights from €902

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

April is typically the cheapest month to fly

From €457 - €1,025 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 €686. 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, 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
Return price
€686
Distance
5732 km
Average flight time
12 hours 15 mins

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