$388 Cheap Flights from Washington (IAD) to Lisbon (LIS)

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 $388 for one-way flights and $454 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Royal Air Maroc
TAP Portugal
Turkish Airlines
Aer Lingus
Icelandair
United
Lufthansa
Delta
American Airlines

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

February is typically the cheapest month to fly

From $469 - $903 per traveler.

Alternative airports near Lisbon

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

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Humberto Delgado Airport (LIS) cost?
Lock in a cheap one-way flight from $388 or cheap return flight from $454 from Washington Dulles Intl. Airport (IAD) to Humberto Delgado Airport (LIS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Humberto Delgado Airport (LIS)?
January is the cheapest month to fly from IAD to LIS. Traveling outside of peak seasons is often the key to finding better deals on flights.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to Humberto Delgado Airport (LIS)?
You can fly straight from Washington Dulles Intl. Airport (IAD) to Humberto Delgado Airport (LIS) on a TAP Portugal flight.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Humberto Delgado Airport (LIS)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from IAD to LIS. Then, sort your results by "Price (lowest to highest)" to pick up a great deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Humberto Delgado Airport (LIS)?
On average, Washington Dulles Intl. Airport (IAD) has 6 direct flights to Humberto Delgado Airport (LIS) weekly. If you're looking for more choice, take advantage of Expedia's filters to look for flights with layovers. Squeeze in a visit to another location or simply break up your travels.
What are the most popular departure times for flights from Washington Dulles Intl. Airport (IAD) to Humberto Delgado Airport (LIS)?
The 5 PM departures from IAD to LIS are the busiest. Prices can be higher for these popular slots. If you want to save on your fare, pick a less crowded time to fly.
What day of the week has the most flights from IAD to LIS?
If you travel on a Friday, you'll get the widest range of options for flights from Washington Dulles Intl. Airport (IAD) to Humberto Delgado Airport (LIS).
What is the earliest flight from Washington Dulles Intl. Airport (IAD) to Humberto Delgado Airport (LIS)?
Washington Dulles Intl. Airport (IAD)'s first flight to Humberto Delgado Airport (LIS) is at approximately 5:30PM UTC-5. With a total flight time of 7h 5m, you'll touch down at around 5:35AM UTC+0.
How long does it take to fly from Washington Dulles Intl. Airport (IAD) to Humberto Delgado Airport (LIS)?
The average flight time from IAD to LIS is 7 hours and 5 minutes, covering a total distance of 3,600 mi.
What airline has the least delays from IAD to LIS?
Lufthansa has the best performance for on-time direct flights from Washington Dulles Intl. Airport (IAD) to Humberto Delgado Airport (LIS), with an on-time score of 100%. Use the Expedia App to view your flight status before you jet off and get notified of any changes.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Humberto Delgado Airport (LIS)?
Book a flight from Washington Dulles Intl. Airport (IAD) to Humberto Delgado Airport (LIS) that takes off before 3 PM to reduce the likelihood of delays. Departures after this hour have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Lisbon District from Washington Dulles Intl. Airport (IAD)?
Humberto Delgado Airport (LIS) is the only airport in Lisbon District with direct flights from Washington Dulles Intl. Airport (IAD). Compare the options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Humberto Delgado Airport (LIS) last-minute?
Waiting until just before your departure to book a ticket from IAD to LIS generally means paying more. Although you may find some last-minute discounts, they aren't always guaranteed. Be flexible with your itinerary to boost your chances of getting a bargain.
Is it cheaper to book an IAD to LIS flight and hotel package?
Compared with arranging hotels and flights separately, booking an IAD to LIS flight and hotel package with Expedia could lead to significant savings. Better still, managing everything in one place will take the hassle out of travel planning. Just secure your flights and select from our wide range of hotels, then customize your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Humberto Delgado Airport (LIS)?
It's generally possible to reschedule or cancel your IAD to LIS flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

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
Roundtrip price
$454
Distance
3582 mi
Average flight time
12 hours 18 mins

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