IAD - LIS

$215 Find Cheap Flights from Washington Dulles Airport to Lisbon - Compare and Save

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Everything you should know

Cheapest round-trip
$669
Typical prices: $835-$1,314
Multiple Airlines
Mon 12/3Fri 12/7
IAD - LIS • 2 stops
Cheapest non-stop
$718
Typical prices: $870-$1,335
TAP AIR PORTUGAL
Fri 2/23Fri 3/2
IAD - LIS • Non-stop
Nonstop flights
Every day
You can fly direct with TAP AIR PORTUGAL and United Airlines. Average duration is 7h 02m
Direct flights
+1
Direct flights
+1
Avoid delays
TAP AIR PORTUGAL
Most punctual • 84% on-time
Evening
Best time • Fewest delays
Insights
Insights
When to book
14 weeks
in advance
Our data shows that travelers who book at least 14 weeks in advance save around 36% compared to booking last minute.
Insights
Insights
When to travel
January
Cheapest • 38% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
New York John F Kennedy Intl (JFK)
Cheapest • Avg $312 (round-trip)
Newark (EWR)
Shortest trip • 10h 24m (one-way)
Insights
Insights
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We hope you love your trip to Lisbon!
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Expert advice
Flight Deals

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

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Lisbon

Thu, Dec 3 - Mon, Dec 7
Multiple Airlines Logo
5:20 pm - 7:45 amIAD  Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado
33h 25m2 stops Toronto Island Montreal Pierre Elliott Trudeau Intl
Multiple Airlines Logo
9:25 am - 10:40 amLIS  Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl
30h 15m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Island
$669Multiple Airlines
Sun, Nov 29 - Thu, Dec 10
Royal Air Maroc Logo
9:05 pm - 11:35 amIAD  Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado
9h 30m1 stop Casablanca Mohamed V
Royal Air Maroc Logo
5:55 pm - 7:05 pmLIS  Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl
30h 10m1 stop Casablanca Mohamed V
$670Royal Air Maroc
Wed, Mar 3 - Fri, Mar 12
Royal Air Maroc Logo
9:05 pm - 11:35 amIAD  Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado
9h 30m1 stop Casablanca Mohamed V
Royal Air Maroc Logo
1:05 pm - 7:05 pmLIS  Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl
11h 00m1 stop Casablanca Mohamed V
$674Royal Air Maroc
Mon, Jan 11 - Mon, Jan 25
Iberia Logo
5:50 pm - 11:25 pmIAD  Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado
24h 35m1 stop Madrid Barajas
Iberia Logo
8:45 pm - 4:20 pmLIS  Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl
24h 35m1 stop Madrid Barajas
$677Iberia
Mon, Mar 1 - Tue, Mar 30
Turkish Airlines Logo
1:30 pm - 10:30 amIAD  Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado
16h 00m1 stop Istanbul
Turkish Airlines Logo
5:10 pm - 7:50 pmLIS  Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl
31h 40m1 stop Istanbul
$710Turkish Airlines
Tue, Feb 23 - Tue, Mar 2
TAP AIR PORTUGAL Logo
5:25 pm - 5:35 amIAD  Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado
7h 10mnonstop
TAP AIR PORTUGAL Logo
10:50 am - 2:40 pmLIS  Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl
8h 50mnonstop
$718TAP AIR PORTUGAL
Tue, Mar 2 - Tue, Mar 9
TAP AIR PORTUGAL Logo
5:25 pm - 5:35 amIAD  Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado
7h 10mnonstop
TAP AIR PORTUGAL Logo
10:50 am - 2:40 pmLIS  Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl
8h 50mnonstop
$719TAP AIR PORTUGAL
Tue, Jan 5 - Wed, Jan 13
Lufthansa Logo
10:55 pm - 11:30 pmIAD  Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado
19h 35m1 stop Munich Franz Josef Strauss
Lufthansa Logo
5:00 am - 3:55 pmLIS  Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl
15h 55m1 stop Frankfurt am Main
$764Lufthansa
Tue, Dec 1 - Fri, Dec 25
Turkish Airlines Logo
1:30 pm - 3:10 pmIAD  Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado
20h 40m1 stop Istanbul
Turkish Airlines Logo
5:55 am - 7:25 pmLIS  Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl
18h 30m1 stop Istanbul
$764Turkish Airlines
Mon, Feb 15 - Fri, Feb 26
Lufthansa Logo
6:00 pm - 11:30 amIAD  Washington, D.C. Dulles Intl-LIS Lisbon Humberto Delgado
12h 30m1 stop Frankfurt am Main
Lufthansa Logo
5:00 am - 3:55 pmLIS  Lisbon Humberto Delgado-IAD Washington, D.C. Dulles Intl
15h 55m1 stop Frankfurt am Main
$775Lufthansa
Booking Insights

Price, demand and travel trends for Washington, D.C. Dulles Intl Airport to Lisbon flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from Washington, D.C. Dulles Intl Airport to Lisbon?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Washington, D.C. Dulles Intl Airport to Lisbon. It’s 8% cheaper than the average day, while Saturday is the most expensive, with prices 10% higher.

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

•January is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Lisbon at $665 round-trip.
•June ($1,415) and July ($1,257) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 112% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Washington, D.C. Dulles Intl Airport to Lisbon the cheapest?

Flights from Washington, D.C. Dulles Intl Airport to Lisbon are cheapest 14 weeks before departure. Booking in this window typically costs about 36% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals
Expert advice

Expert advice for your flight from Dulles Intl to Lisbon

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Duncan Madden

Duncan Madden

Expert on TAP AIR PORTUGAL and LIS

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Read more
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more

Key details for Washington, D.C. Dulles Intl Airport to Lisbon flights

Low season

January

Cheapest flight

$215
Beat the crowds with an average 47% drop in travelers.
The most popular month to fly with an average 26% increase in travelers.
One-way flight from Washington, D.C. Dulles Intl Airport to Lisbon

When to book flights from Dulles Intl to Lisbon

Are your dates flexible? Find out the best times to travel from Dulles Intl to Lisbon based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Washington, D.C. Dulles Intl Airport to Lisbon flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What are the earliest and latest flights from Washington, D.C. Dulles Intl Airport to Lisbon?

    These are the earliest and latest flight times available from Washington, D.C. Dulles Intl Airport to Lisbon:

    • Earliest: departs at 5:25 pm and lands at 12:27 am
    • Latest: departs at 11:30 pm and lands at 6:32 am.

    The flight takes about 7h 02m.

  • What cabin classes can I book on flights from Washington, D.C. Dulles Intl Airport to Lisbon?

    Four cabin classes are available on flights from Washington, D.C. Dulles Intl Airport to Lisbon:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How long is a flight from Washington, D.C. Dulles Intl Airport to Lisbon?

    A nonstop flight from Washington, D.C. Dulles Intl Airport to Lisbon takes 7h 02m, covering 3,580 miles.

  • Do I need a passport to fly from Washington, D.C. Dulles Intl Airport to Lisbon?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Washington, D.C. Dulles Intl Airport to Lisbon flight?

    Round-trip flights from Washington, D.C. Dulles Intl Airport to Lisbon range from $835 to $1,314, with an average of $1,080 over the past 12 months. Anything below $835 counts as a good deal.

  • How expensive are last-minute Washington, D.C. Dulles Intl Airport to Lisbon flights?

    Last-minute fares on this route (booked within two weeks of departure) run 31% above the $1,080 route average. Book 14 weeks before departure for the lowest fares.

  • How much can I save by taking a layover when flying from Washington, D.C. Dulles Intl Airport to Lisbon?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $312 round-trip via New York John F Kennedy Intl (JFK), compared to $1,100 for nonstop.

  • What is the standard checked-bag allowance on flights from Washington, D.C. Dulles Intl Airport to Lisbon?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $75–$100 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Washington, D.C. Dulles Intl Airport to Lisbon?

    The Boeing 777 family is used most often on this route, operated mainly by United Airlines and Lufthansa. Other aircraft seen on the route include Airbus A321neo variants.

  • How are flight departures from Washington, D.C. Dulles Intl Airport to Lisbon spread across the day?

    Evening is the busiest departure period on Washington, D.C. Dulles Intl Airport to Lisbon flights, with 50% of flights leaving in that window. Night departures account for 50%, morning flights for 0%, and afternoon flights for 0%.

  • Which airlines offer Wi-Fi on Washington, D.C. Dulles Intl Airport to Lisbon flights?

    JetBlue is the only airline on the Washington, D.C. Dulles Intl Airport to Lisbon route offering in-flight Wi-Fi. Pricing depends on fare class.

  • How are flight prices from Washington, D.C. Dulles Intl Airport to Lisbon looking right now?

    One-way fares from Washington, D.C. Dulles Intl Airport to Lisbon are currently lower than usual. Average one-way flight prices are about $435, which is 39% below the typical average for this route.

  • What car rental options are available at Lisbon Humberto Delgado Airport (LIS)?

    Lisbon Humberto Delgado Airport (LIS) hosts 5 major car rental companies, with daily rates averaging $23 for economy cars. Top options include:

    • Klass Wagen
    • Goldcar Rental SP
    • Drive on Holiday
    • GREEN MOTION
    • Guerin

  • Which airports can I use when flying from Washington, D.C. Dulles Intl Airport to Lisbon?

    Flights from Washington, D.C. Dulles Intl Airport to Lisbon usually depart from Washington, D.C. Dulles Intl (IAD) and arrive at Lisbon Humberto Delgado (LIS).

  • What time of day has the fewest delays on flights from Washington, D.C. Dulles Intl Airport to Lisbon?

    Evening flights have the fewest delays on this route, while night departures tend to have the most.

  • At what point is a flight considered delayed from Washington, D.C. Dulles Intl Airport to Lisbon?

    A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Washington, D.C. Dulles Intl Airport to Lisbon route, 21% of flights were delayed in the past 3 months, with delays averaging 2h 36m.

  • Which airports do connecting flights from Washington, D.C. Dulles Intl Airport to Lisbon pass through?

    One-stop flights from Washington, D.C. Dulles Intl Airport to Lisbon most commonly connect through:

    • Casablanca Mohamed V (CMN) - 54% of one-stop connections
    • Istanbul (IST) - 20% of one-stop connections
    • Kastrup Copenhagen (CPH) - 12% of one-stop connections
    • Dublin (DUB) - 4% of one-stop connections

  • Can I save money by using flexible dates for flights from Washington, D.C. Dulles Intl Airport to Lisbon?

    Yes. Flexible dates can save you up to 17% on flights from Washington, D.C. Dulles Intl Airport to Lisbon. Wednesday is the cheapest departure day at $998 round-trip on average, while Saturday is the most expensive at $1,190, a difference of $192.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • What airlines fly from Washington, D.C. Dulles Intl Airport to Lisbon?

    2 airlines operate flights between Washington, D.C. Dulles Intl Airport and Lisbon. The airlines offering nonstop flights on this route include:

    • TAP AIR PORTUGAL
    • United Airlines

  • How much time can I save by choosing a different layover airport from Washington, D.C. Dulles Intl Airport to Lisbon?

    Flying via Newark (EWR) gives the shortest average 1-stop total travel time at 10h 24m, compared with 11h 53m via Montreal Pierre Elliott Trudeau Intl (YUL) and 12h 09m via Paris Charles de Gaulle (CDG).

  • What is the time difference between Washington, D.C. Dulles Intl Airport and Lisbon?

    Lisbon is 4 hours ahead of Washington, D.C. Dulles Intl Airport (Western European Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Lisbon?

    Some of the most popular sights in Lisbon are Chiado, Commerce Square and Praça do Marquês de Pombal. These are among the most viewed places in Lisbon on KAYAK.

  • Which airlines offer extra legroom and free seat selection on Washington, D.C. Dulles Intl Airport to Lisbon flights?

    Among airlines operating Washington, D.C. Dulles Intl Airport to Lisbon flights:

    • TAP AIR PORTUGAL: offers extra legroom; offers free seat selection
    • United Airlines: offers extra legroom; offers free seat selection
    • Lufthansa: offers extra legroom; offers free seat selection
    • JetBlue: offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

  • Which airlines include bags at no extra cost on Washington, D.C. Dulles Intl Airport to Lisbon flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • TAP AIR PORTUGAL: a cabin bag and a checked bag in Economy Class
    • United Airlines: a cabin bag and a checked bag in Economy Class
    • Lufthansa: a cabin bag and a checked bag in Economy Class

    Bag allowance can vary by ticket type, cabin class, route and airline, so always check the fare details before booking.

  • What services are offered for travelers with limited mobility at Dulles?

    Dulles Airport also has elevators to allow for individuals in wheelchairs to navigate the different terminals. The elevators include raised Braille buttons and are accessible to those in wheelchairs. An automated voice announces arrival at each floor in some elevators.

  • Are there any children's services at Lisbon Airport?

    Yes, once you've cleared security, the airport provides a complimentary stroller service to help you get around. Each stroller is labeled with the ANA logo and is suitable for babies up to 3 years old or 13 lbs. When you're through with it, place it close to your boarding gate.

  • Are there any rental services at Lisbon Airport?

    Yes, Lisbon Airport has a pool of Portuguese car rentals that you can opt to use once you have arrived. The international terminal has a toll free station which can help you access the services. The car rental services that you can opt to use include Hertz and Enterprise car rentals.

  • Are there any parking facilities at Dulles?

    Dulles provides convenient garage locations with direct inside access to all terminals. In addition, free shuttle service between terminals and all on-airport parking facilities is available 24/7. You can pay with a credit card in advance and scan your QR code in and out, or you can use a drive-up ticket.

Your guide to booking Washington, D.C. Dulles Intl Airport to Lisbon flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Saturday. On this route, Wednesday flights average $998, about $192 less than Saturday fares (16% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 14 weeks before you fly. On this route, that window historically saves about 36% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Washington, D.C. Dulles Intl Airport to Lisbon trip for January. Fares historically average $665 round-trip in that month - typically $750 less than the most expensive month, which is June (based on the last 12 months).
  • For the best chance of arriving on time, fly with TAP AIR PORTUGAL. Over the past three months, 84% of TAP AIR PORTUGAL flights from Washington, D.C. Dulles Intl Airport to Lisbon arrived on time, slightly above the route average of 79%. When flights on this route arrive late, they're delayed by an average of 2h 36m, so choosing an airline with strong on-time performance can make a difference if you're on a tight schedule.
  • If you have the time, taking a 1-stop flight through New York John F Kennedy Intl Airport (JFK) can be cheaper than flying direct. The cheapest layover option averages $312 round-trip on this route - about $788 less than direct flights (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Lisbon Humberto Delgado Airport.

    • B&B Hotel Lisboa Aeroporto
    • Ibis Styles Lisboa Aeroporto
    • Masa Hotel Wellness & Spa Campo Grande Lisbon
  • Washington Dulles International Airport (IAD) is home to several airlines that fly throughout the country and globally: Swiss International Air Lines, American Airlines, United Airlines, Scandinavian Airlines, Air Canada, TAP Air Portugal, Iberia, and Lufthansa. Therefore, the travelers flying out of Dulles have so many options to choose from. Because of this, you will find that it is common for these companies to operate many of the departing flights from this transportation center.
  • For travelers who have difficulty getting around the Dulles International Airport, there are information centers that are available and easily accessible. The information centers are located at the Departures Level, just beyond the east and west security checkpoints and the arrivals level. The information centers are also available in Concourse A, Concourse B near Gate B62, Concourse D near Gate D16 and Concourse C near Gate C17.
  • Need to get some work done, get some relaxation, or simply refresh yourself with a refreshing shower? The lounges at Dulles provide you with all of the comfort you require. There are both Turkish Airlines and Lufthansa lounges at Concourse B. The other available lounges must be accessed using a pass or a ticket.
  • When you don't want to carry your luggage or need to keep it safe, leave it in good hands. At your convenience, Humberto Delgado Airport in Lisbon (LIS) provides a variety of luggage storage services, where your belongings will be well cared for, providing you peace of mind and the flexibility to enjoy your free time. The storage services are booked online, and their services are affordable.
  • If you have lost your luggage or have misplaced it at the airport upon arrival at the Lisbon Airport, you can call the lost and found department and they will be able to find your luggage. The lost and found department is located at Baggage Claim 2 and is usually closed during the weekends.

Prefer to fly direct from Washington Dulles Airport to Lisbon?

 
Find which airlines fly direct from Washington, D.C. Dulles Intl Airport to Lisbon Humberto Delgado Airport, which days they fly and book direct flights.

Direct departures

Washington, D.C. Dulles Intl to Lisbon Humberto Delgado

Monday

TAP AIR PORTUGAL,United Airlines

TAP AIR PORTUGAL,United Airlines

Tuesday

TAP AIR PORTUGAL,United Airlines

TAP AIR PORTUGAL,United Airlines

Wednesday

TAP AIR PORTUGAL,United Airlines

TAP AIR PORTUGAL,United Airlines

Thursday

TAP AIR PORTUGAL,United Airlines

TAP AIR PORTUGAL,United Airlines

Friday

TAP AIR PORTUGAL,United Airlines

TAP AIR PORTUGAL,United Airlines

Saturday

TAP AIR PORTUGAL,United Airlines

TAP AIR PORTUGAL,United Airlines

Sunday

TAP AIR PORTUGAL,United Airlines

TAP AIR PORTUGAL,United Airlines

See more direct flights

Direct returns

Lisbon Humberto Delgado to Washington, D.C. Dulles Intl

Monday

TAP AIR PORTUGAL,United Airlines

TAP AIR PORTUGAL,United Airlines

Tuesday

TAP AIR PORTUGAL,United Airlines

TAP AIR PORTUGAL,United Airlines

Wednesday

TAP AIR PORTUGAL,United Airlines

TAP AIR PORTUGAL,United Airlines

Thursday

TAP AIR PORTUGAL,United Airlines

TAP AIR PORTUGAL,United Airlines

Friday

TAP AIR PORTUGAL,United Airlines

TAP AIR PORTUGAL,United Airlines

Saturday

TAP AIR PORTUGAL,United Airlines

TAP AIR PORTUGAL,United Airlines

Sunday

TAP AIR PORTUGAL,United Airlines

TAP AIR PORTUGAL,United Airlines

See more direct flights

More options for your flight from Dulles Intl to Lisbon

Complete your trip to Lisbon with a hotel stay or car rental

Car rentals in Lisbon
Hotels in Lisbon
Vacations in Lisbon