Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Lisbon to Washington, D.C. Dulles Intl Airport from $350

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Lisbon to Washington, D.C. Dulles Intl Airport departing on 6/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Deals available from 900+ travel sites.

Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

Find the cheapest flights from Lisbon to Washington, D.C.

Cheap round-trip flights

These are some of the best round-trip flight deals from Lisbon to Washington, D.C. that have been recently found on momondo from popular airlines, departing in the coming months.
6:35 am - 3:00 pmLIS-IAD
13h 25m1 stop
10:40 pm - 11:10 pmIAD-LIS
19h 30m1 stop
$478Finnair
Find Deal
Thu, May 8 - Mon, May 12
10:50 am - 7:15 pmLIS-IAD
13h 25m1 stop
9:45 pm - 9:35 pmIAD-LIS
18h 50m1 stop
$486Aer Lingus
Find Deal
Thu, Mar 6 - Sat, Mar 29
8:25 am - 3:00 pmLIS-IAD
11h 35m1 stop
10:45 pm - 11:10 pmIAD-LIS
19h 25m1 stop
$487American Airlines
Find Deal
Thu, May 1 - Sat, May 10
6:30 am - 7:45 pmLIS-IAD
18h 15m2 stops
10:45 pm - 11:10 pmIAD-LIS
19h 25m1 stop
$495American Airlines
Find Deal
Thu, Mar 6 - Sat, Mar 29
5:00 am - 4:50 pmLIS-IAD
15h 50m1 stop
10:15 pm - 10:30 amIAD-LIS
7h 15mnonstop
$542Lufthansa
Find Deal
Fri, Mar 14 - Sun, Mar 30
5:00 am - 4:50 pmLIS-IAD
15h 50m1 stop
10:15 pm - 10:30 amIAD-LIS
7h 15mnonstop
$544Lufthansa
Find Deal
Fri, Mar 14 - Sun, Mar 30
5:30 pm - 8:50 pmLIS-IAD
8h 20mnonstop
10:20 pm - 10:40 amIAD-LIS
7h 20mnonstop
$552TAP AIR PORTUGAL
Find Deal
Fri, May 16 - Mon, May 19
11:00 am - 9:46 amLIS-IAD
27h 46m1 stop
11:10 pm - 10:15 amIAD-LIS
7h 05mnonstop
$553United Airlines
Find Deal
Wed, Mar 5 - Mon, Mar 10
6:15 am - 7:27 pmLIS-IAD
18h 12m2 stops
10:20 pm - 9:50 pmIAD-LIS
18h 30m1 stop
$555United Airlines
Find Deal
Fri, May 16 - Mon, May 19
12:00 pm - 3:20 pmLIS-IAD
8h 20mnonstop
5:45 pm - 6:05 amIAD-LIS
7h 20mnonstop
$573TAP AIR PORTUGAL
Find Deal
Sat, Jun 7 - Sun, Jun 22

Finnair flights from Lisbon to Washington, D.C. Dulles Intl Airport

Our best Finnair deals on Lisbon to Washington, D.C. Dulles Intl Airport flight tickets
Finnair
May 8
LIS6:35 amLisbon Humberto Delgado
13h 25m
1 stop
IAD3:00 pmWashington, D.C. Dulles Intl
May 12
IAD10:40 pmWashington, D.C. Dulles Intl
19h 30m
1 stop
LIS11:10 pmLisbon Humberto Delgado
Finnair
Jun 17
LIS6:35 amLisbon Humberto Delgado
13h 25m
1 stop
IAD3:00 pmWashington, D.C. Dulles Intl
Jun 21
IAD10:45 pmWashington, D.C. Dulles Intl
19h 25m
1 stop
LIS11:10 pmLisbon Humberto Delgado

American Airlines flights from Lisbon to Washington, D.C. Dulles Intl Airport

Our best American Airlines deals on Lisbon to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
May 1
LIS8:25 amLisbon Humberto Delgado
11h 35m
1 stop
IAD3:00 pmWashington, D.C. Dulles Intl
May 10
IAD10:45 pmWashington, D.C. Dulles Intl
19h 25m
1 stop
LIS11:10 pmLisbon Humberto Delgado
American Airlines
Mar 6
LIS6:30 amLisbon Humberto Delgado
18h 15m
2 stops
IAD7:45 pmWashington, D.C. Dulles Intl
Mar 29
IAD10:45 pmWashington, D.C. Dulles Intl
19h 25m
1 stop
LIS11:10 pmLisbon Humberto Delgado
American Airlines
Apr 13
LIS6:35 amLisbon Humberto Delgado
13h 25m
1 stop
IAD3:00 pmWashington, D.C. Dulles Intl
Apr 20
IAD4:35 pmWashington, D.C. Dulles Intl
10h 10m
1 stop
LIS7:45 amLisbon Humberto Delgado

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Lisbon to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Lisbon and Washington, D.C. Dulles Intl Airport?

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

In general, November is the cheapest month to fly from Lisbon to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $562. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of November, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $651.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Wednesday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $744. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Lisbon to Washington, D.C. Dulles Intl Airport for around $981.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Lisbon in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $734 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $892 on average. Flights to Washington, D.C. Dulles Intl Airport from Lisbon at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Lisbon Humberto Delgado to Washington, D.C. Dulles Intl flight route?

Fly from Lisbon Humberto Delgado to Washington, D.C. Dulles Intl for the best Lisbon Humberto Delgado - Washington, D.C. Dulles Intl flight prices

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Lisbon when booking 22 weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $759 when searching 22 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Lisbon for as low as $589 on momondo.

What cabin class options are available on Lisbon Humberto Delgado to Washington, D.C. Dulles Intl flights?

There are 3 cabin classes available to choose from on Lisbon Humberto Delgado to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Lisbon to Washington, D.C. Dulles Intl Airport flight prices changed over time?

As of February 2025, prices for Lisbon to Washington, D.C. Dulles Intl Airport flights are approximately 5% more expensive when compared to flights at the same time last year.

When to book flights from Lisbon to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Lisbon to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Lisbon to Washington, D.C. Dulles Intl Airport (LIS to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Lisbon to Washington, D.C. Dulles Intl Airport

Best Price Found

$350

Fastest flight time

8h 15m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Lisbon in the past 72 hours is $350. The best round-trip flight deal from Lisbon to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $478.
The fastest flight from Lisbon to Washington, D.C. Dulles Intl Airport takes 8h 15m
Direct flights go from Lisbon to Washington, D.C. Dulles Intl Airport every day.

  • How far is Lisbon Humberto Delgado to Washington, D.C. Dulles Intl by plane?

    A flight from Lisbon Humberto Delgado to Washington, D.C. Dulles Intl will travel around 3581.5 mi. A reasonable flight in good conditions will take 8h 15m.

  • When did momondo last update prices for flights from Lisbon Humberto Delgado Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Lisbon Humberto Delgado Airport to Washington, D.C. Dulles Intl Airport are updated daily.

  • How many operators does momondo search for flights from Lisbon Humberto Delgado Airport to Washington, D.C. Dulles Intl Airport?

  • How old do you have to be to fly from Lisbon Humberto Delgado Airport to Washington, D.C. Dulles Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lisbon Humberto Delgado Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Lisbon to Washington, D.C. Dulles Intl Airport?

  • What is the most popular airline from Lisbon to Washington, D.C. Dulles Intl Airport?


Best airlines flying from Lisbon to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Lisbon to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $536Free CancellationRating
6.7
6,984 reviews
Search Lufthansa flights
TAP AIR PORTUGALPriceFrom $541Free CancellationRating
7.1
1,847 reviews
Search TAP AIR PORTUGAL flights
United AirlinesPriceFrom $543Free CancellationRating
7.4
8,766 reviews
Search United Airlines flights
  • TAP AIR PORTUGAL Flights From Lisbon to Washington, D.C. Dulles Intl Airport

    TAP AIR PORTUGAL flies from Lisbon to Washington, D.C. Dulles Intl Airport around 2 times per week, with 1,847 momondo users rating the airline 7.1/10. The cheapest TAP AIR PORTUGAL deal from Lisbon to Washington, D.C. Dulles Intl Airport in the last 72 hours was $541 (round-trip), much lower than the average airfare cost of $743 for TAP AIR PORTUGAL flights on this route.


Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Arlington
Gettysburg
Laurel
National Harbor
Winchester
Silver Spring
Woodbridge
Fredericksburg
Manassas
Tysons
Waldorf
Gaithersburg
Linthicum Heights
Harpers Ferry
Glen Burnie
Rockville
Fairfax
Towson
Hanover

Why use momondo?

Why should I use momondo to find a flight deal from Lisbon to Washington, D.C.?

Finding the right flight to Washington, D.C. from Lisbon is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

Can I find flights from Lisbon to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Washington, D.C. from Lisbon with this policy.

How can momondo help me find flights from Lisbon to Washington, D.C.?

Once all potential Lisbon to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Lisbon to Washington, D.C. right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington, D.C. from Lisbon. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


An easier way to manage your Washington, D.C. Dulles Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
Tue 2/25
Tue 3/4

Find better results for your trip to Washington, D.C.