Question 1

Which is the best airline for flights from Lisbon to Washington, D.C., United Airlines or TAP AIR PORTUGAL?

Accepted Answer

The two airlines most popular with KAYAK users for flights from Lisbon to Washington, D.C. are United Airlines and TAP AIR PORTUGAL. With an average price for the route of $881 and an overall rating of 7.4, United Airlines is the most popular choice. TAP AIR PORTUGAL is also a great choice for the route, with an average price of $973 and an overall rating of 7.2.

Question 2

How long does a flight from Lisbon to Washington, D.C. take?

Accepted Answer

The duration of a nonstop flight to Washington, D.C. from Lisbon is typically 7h 55m. The journey crosses a distance of 3,580 miles.

Question 3

How many flights are there between Lisbon and Washington, D.C. Dulles Intl Airport per day?

Accepted Answer

Each day, there are 3 nonstop flights that take off from Lisbon and land in Washington, D.C. Dulles Intl Airport, with an average flight time of 8h 16m. The most common departure time is 4:00 pm and most flights take off in the morning. Each week, there are 21 flights and there are the same amount of flights each day (3).

Question 4

How many flights are there between Lisbon and Washington, D.C. Dulles Intl Airport per day?

Accepted Answer

Each day, there are 3 nonstop flights that take off from Lisbon and land in Washington, D.C. Dulles Intl Airport, with an average flight time of 8h 16m. The most common departure time is 4:00 pm and most flights take off in the morning. Each week, there are 21 flights and there are the same amount of flights each day (3).

Question 5

What is the cheapest flight from Lisbon to Washington, D.C. Dulles Intl Airport?

Accepted Answer

In the last 5 days, the lowest price for a flight from Lisbon to Washington, D.C. Dulles Intl Airport was $523 for a one-way ticket and $473 for a round-trip.

Question 6

Do I need a passport to fly between Lisbon and Washington, D.C.?

Accepted Answer

A passport is required to fly from Lisbon to Washington, D.C..

Question 7

What’s the cheapest day of the week to fly from Lisbon to Washington, D.C.?

Accepted Answer

For Lisbon to Washington, D.C., Wednesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Washington, D.C. back to Lisbon, the best deals are generally found on Monday, with Friday being the most expensive.

Question 8

What’s the cheapest day of the week to fly from Lisbon to Washington, D.C.?

Accepted Answer

For Lisbon to Washington, D.C., Wednesday is the cheapest day to fly on average and Monday is the most expensive. Flying from Washington, D.C. back to Lisbon, the best deals are generally found on Monday, with Friday being the most expensive.

Question 9

What’s the earliest departure time from Lisbon to Washington, D.C.?

Accepted Answer

Early birds can take the earliest flight from Lisbon at 11:40 am and will be landing in Washington, D.C. Dulles Intl Airport at 3:10 pm.

Question 10

What’s the latest departure time from Lisbon to Washington, D.C.?

Accepted Answer

If you prefer to fly at night, the latest flight from Lisbon to Washington, D.C. Dulles Intl Airport jets off at 5:15 pm and lands at 8:35 pm.

Question 11

Which airlines fly non-stop between Lisbon and Washington, D.C. Dulles Intl Airport?

Accepted Answer

There are 2 airlines that fly nonstop from Lisbon to Washington, D.C. Dulles Intl Airport. They are TAP AIR PORTUGAL and United Airlines. The cheapest airline for this route is United Airlines, with the best round-trip deal found costing $497. On average, the best prices for this route can be found at United Airlines.

Question 12

Which airlines fly non-stop between Lisbon and Washington, D.C. Dulles Intl Airport?

Accepted Answer

There are 2 airlines that fly nonstop from Lisbon to Washington, D.C. Dulles Intl Airport. They are TAP AIR PORTUGAL and United Airlines. The cheapest airline for this route is United Airlines, with the best round-trip deal found costing $497. On average, the best prices for this route can be found at United Airlines.

Question 13

Which airlines offer Wi-Fi service onboard planes from Lisbon to Washington, D.C.?

Accepted Answer

American Airlines, and Delta offer inflight Wi-Fi service on the Lisbon to Washington, D.C. flight route.

Question 14

Which aircraft models fly most regularly from Lisbon to Washington, D.C.?

Accepted Answer

The Boeing 777 is the aircraft model that flies most regularly on the Lisbon to Washington, D.C. flight route.

Question 15

Which airline alliances offer flights from Lisbon to Washington, D.C.?

Accepted Answer

Star Alliance is the only airline alliance operating flights between Lisbon and Washington, D.C..

Question 16

On which days can I fly direct from Lisbon to Washington, D.C.?

Accepted Answer

There are nonstop flights from Lisbon to Washington, D.C. on a daily basis.

Question 17

What is the cheapest month to fly from Lisbon to Washington, D.C. Dulles Intl Airport?

Accepted Answer

The cheapest month for flights from Lisbon to Washington, D.C. Dulles Intl Airport is December, where tickets cost $599 (return) on average. On the other hand, the most expensive months are August and June, where the average cost of round-trip tickets is $1,298 and $1,002 respectively.

Question 18

What is the cheapest month to fly from Lisbon to Washington, D.C. Dulles Intl Airport?

Accepted Answer

The cheapest month for flights from Lisbon to Washington, D.C. Dulles Intl Airport is December, where tickets cost $599 (return) on average. On the other hand, the most expensive months are August and June, where the average cost of round-trip tickets is $1,298 and $1,002 respectively.

Question 19

How does KAYAK find such low prices on flights from Lisbon to Washington, D.C.?

Accepted Answer

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Lisbon to Washington, D.C..

Question 20

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Lisbon to Washington, D.C.?

Accepted Answer

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Lisbon is likely to change within 7 days, so travelers know whether to wait or book now.

Question 21

What is the Hacker Fare option on flights from Lisbon to Washington, D.C.?

Accepted Answer

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. with an airline and back to Lisbon with another airline. Booking your flights between Lisbon and IAD can sometimes prove cheaper using this method.

Question 22

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Lisbon to Washington, D.C.?

Accepted Answer

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. from Lisbon up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Question 23

What is the cheapest layover airport when flying from Lisbon to Washington, D.C.?

Accepted Answer

Flights via Copenhagen (CPH) offer the most affordable fares, with an average round-trip price of $496.

Question 24

What is the most popular layover airport when flying from Lisbon to Washington, D.C.?

Accepted Answer

Paris (CDG) is the top choice – 38% of KAYAK users who clicked on 1-stop flights from Lisbon to Washington, D.C. picked an itinerary connecting there.

Question 25

Which layover airport has the quickest connection when flying from Lisbon to Washington, D.C.?

Accepted Answer

If you prefer a quick connection, Paris (CDG) often has the shortest layovers from Lisbon to Washington, D.C., with an average of 1h 18m.

Question 26

Which layover airport offers the shortest total travel time from Lisbon to Washington, D.C.?

Accepted Answer

Consider flying via Paris (CDG) for the shortest journey. The average one-way travel time for flights connecting there is 12h 20m.

Question 27

How often are flights from Lisbon to Washington, D.C. delayed?

Accepted Answer

Weekly flights between Lisbon and Washington, D.C. historically see delays in approximately 30% of cases, with the average delay over the past year being 130 minutes.

Question 28

Which airline has the best punctuality record on Lisbon to Washington, D.C. flights?

Accepted Answer

Based on our data, United Airlines have experienced the fewest delays on this route in the past 12 months, with only about 26% of their flights encountering any delays.

Question 29

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Statistically, Monday is the day of the week with the fewest delays on this flight route, while Saturday has typically experienced more delays than other days.

Question 30

What is the most punctual flight time for Lisbon to Washington, D.C. flights?

Accepted Answer

Typically, flights leaving in the morning tend to face fewer delays, whereas flights in the early afternoon have historically encountered delays more often.

Question 31

Which cabin class options are there for flights between Lisbon and Washington, D.C. Dulles Intl Airport?

Accepted Answer

There are 3 cabin class options for the route. These are Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 32

Which cabin class options are there for flights between Lisbon and Washington, D.C. Dulles Intl Airport?

Accepted Answer

There are 3 cabin class options for the route. These are Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Question 33

Which airlines provide the cheapest flights from Lisbon to Washington, D.C.?

Accepted Answer

In the past 5 days, the cheapest round-trip tickets from Lisbon to Washington, D.C. were found on Finnair ($503) and American Airlines ($504).

Question 34

Which airlines provide the cheapest flights from Lisbon to Washington, D.C.?

Accepted Answer

In the past 5 days, the cheapest round-trip tickets from Lisbon to Washington, D.C. were found on Finnair ($503) and American Airlines ($504).

Question 35

Can I save money by flying with a layover from Lisbon to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $765 on average.

Question 36

Can I save money by flying with a layover from Lisbon to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $765 on average.

Question 37

What are the most popular airlines flying to Washington, D.C. Dulles Intl Airport?

Accepted Answer

The most popular airline among KAYAK users flying to Washington, D.C. Dulles Intl Airport is TAP AIR PORTUGAL, followed by United Airlines.

Low season	January
High season	July
Cheapest flight	$473

LIS - IAD

$473 Find Cheap Flights from Lisbon to Washington, D.C. - Compare and Save

Everything you should know

Cheap Flights from Lisbon to Dulles Intl (LIS-IAD)

Recent round-trip flight deals from Lisbon to Dulles Intl

Recent one-way flight deals from Lisbon to Dulles Intl

Recent last minute flight deals from Lisbon to Dulles Intl

Recent direct flight deals from Lisbon to Dulles Intl

KAYAK's insights & trends for Lisbon to Dulles Intl flights

What’s the cheapest day of the week to fly from Lisbon to Washington, D.C.?

What is the cheapest month to fly from Lisbon to Washington, D.C. Dulles Intl Airport?

Can I save money by flying with a layover from Lisbon to Washington, D.C. Dulles Intl Airport?

Which airlines provide the cheapest flights from Lisbon to Washington, D.C.?

Which airlines fly non-stop between Lisbon and Washington, D.C. Dulles Intl Airport?

How often are flights from Lisbon to Washington, D.C. delayed?

What is the most punctual flight time for Lisbon to Washington, D.C. flights?

What day of the week experiences the fewest flight delays on this route?

Which airline has the best punctuality record on Lisbon to Washington, D.C. flights?

What is the most popular layover airport when flying from Lisbon to Washington, D.C.?

What is the cheapest layover airport when flying from Lisbon to Washington, D.C.?

Which layover airport offers the shortest total travel time from Lisbon to Washington, D.C.?

Which layover airport has the quickest connection when flying from Lisbon to Washington, D.C.?

Which cabin class options are there for flights between Lisbon and Washington, D.C. Dulles Intl Airport?

How many flights are there between Lisbon and Washington, D.C. Dulles Intl Airport per day?

How long does a flight from Lisbon to Washington, D.C. take?

What’s the earliest departure time from Lisbon to Washington, D.C.?

What’s the latest departure time from Lisbon to Washington, D.C.?

Expert advice for your flight from Lisbon to Dulles Intl

Good to know

Low season

High season

Cheapest flight

When to book flights from Lisbon to Dulles Intl

FAQs for booking Lisbon to Washington, D.C. flights

KAYAK’s top tips for finding a cheap flight from Lisbon to Washington, D.C. Dulles Intl Airport

Prefer to fly direct from Lisbon to Washington, D.C.?

Everything you need to know for your flight from Lisbon to Dulles Intl

Information on your arrival and departure airports

Cabin class types available on flights to Dulles Intl

Complete your trip to Washington, D.C. with a hotel stay or car rental

Find direct flights to and from Lisbon and Dulles Intl

Flights to other popular destinations

Flights from domestic origins to Dulles Intl

Choose which airport to fly into in Washington, D.C.

Find deals for your return flight