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$348+ Cheap flights from Dulles Intl (IAD) to Lisbon (LIS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — LIS
Nov 25 — Dec 21
Mon 11/25
Mon 12/2
1 adult, Economy
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The best prices from Washington, D.C. Dulles Intl to Lisbon Humberto Delgado are usually found in January or November, booked 60 days in advance, depart on a Monday or Wednesday and return on a Wednesday

Cheap flight deals from Dulles Intl to Lisbon

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Lisbon (LIS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 20, 2024.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Popular in

June

Cheapest in

January

Round-trip from

$569
(FlightHub)

One-way from

$348
(Kiwi.com)
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Lisbon Humberto Delgado flights.
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High demand for flights, 25% potential price rise
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Best time to find cheap flights, 26% potential price drop
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From Washington, D.C. Dulles Intl to Lisbon Humberto Delgado
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One-way flight from Washington, D.C. Dulles Intl to Lisbon Humberto Delgado
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Find flight deals from Dulles Intl to Lisbon

Cheapest flights from Dulles Intl to Lisbon
Explore the most affordable flight options available from Dulles Intl to Lisbon. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 20, 2024.

This Mytrip deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/97:15 pmIAD - LIS
Nonstop7h 05mTAP AIR PORTUGAL
Wed 12/255:15 pmLIS - IAD
Nonstop8h 45mTAP AIR PORTUGAL
Deal found 11/20$582
This Mytrip deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/33:55 pmIAD - LIS
2 stops18h 20mMultiple Airlines
Tue 12/104:05 pmLIS - IAD
3 stops28h 08mMultiple Airlines
Deal found 11/19$591
This oojo deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/12:00 pmIAD - LIS
1 stop20h 00mTurkish Airlines
Tue 12/104:00 pmLIS - IAD
1 stop25h 15mTurkish Airlines
Deal found 11/19$634
This Scandinavian Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/25:10 pmIAD - LIS
2 stops24h 00mScandinavian Airlines
Wed 12/117:00 pmLIS - IAD
1 stop25h 40mScandinavian Airlines
Deal found 11/20$826
This Gurufare deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/269:15 pmIAD - LIS
1 stop31h 55mAer Lingus
Tue 12/310:50 amLIS - IAD
1 stop33h 50mAer Lingus
Deal found 11/19$861
This KAYAK deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/57:40 pmIAD - LIS
1 stop20h 25mIcelandair
Wed 12/117:00 amLIS - IAD
2 stops16h 25mIcelandair
Deal found 11/19$890
This Justfly.com deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/1012:41 pmIAD - LIS
2 stops15h 14mAir Canada
Sun 12/1510:50 amLIS - IAD
1 stop26h 13mAir Canada
Deal found 11/19$931

Find flights from Dulles Intl to Lisbon within your budget

Customize your flight search to find flights from Dulles Intl to Lisbon that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.

Fly from

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Route

Depart

Return

Price

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Sun 3/2

8:40 pm-11:35 am

1 stop9h 55m

Lisbon Humberto Delgado

Thu 3/6

5:55 pm-6:40 pm

1 stop29h 45m

$561

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Thu 2/6

7:40 pm-8:20 pm

1 stop19h 40m

Lisbon Humberto Delgado

Mon 2/10

9:20 pm-6:25 pm

1 stop26h 05m

$569

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Tue 1/14

10:35 am-9:30 pm

3 stops29h 55m

Lisbon Humberto Delgado

Mon 1/20

9:00 pm-3:13 pm

3 stops23h 13m

$575

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Sun 2/2

10:30 pm-10:35 am

Nonstop7h 05m

Lisbon Humberto Delgado

Sun 2/16

5:15 pm-9:00 pm

Nonstop8h 45m

$576

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Wed 3/5

9:25 pm-10:35 am

1 stop32h 10m

Lisbon Humberto Delgado

Mon 3/10

4:00 pm-8:30 pm

1 stop32h 30m

$588

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Mon 3/24

6:10 pm-10:10 pm

2 stops24h 00m

Lisbon Humberto Delgado

Thu 4/3

7:00 am-7:59 pm

2 stops17h 59m

$593

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Mon 12/9

7:40 pm-12:05 pm

3 stops35h 25m

$348

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Mon 12/2

7:15 pm-7:20 am

Nonstop7h 05m

$356

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Fri 2/7

8:40 pm-4:55 pm

1 stop15h 15m

$370

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Tue 4/1

10:05 pm-9:05 am

1 stop30h 00m

$392

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 18 results
1
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Compare providers for flights from Dulles Intl to Lisbon

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Lisbon in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightsMojoPrice Accuracy-Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Lisbon flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Washington, D.C. Dulles Intl Airport-Lisbon flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Lisbon flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Lisbon flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Lisbon flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Dulles Intl to Lisbon

Have a flexible travel schedule? Discover the best time to fly to Lisbon from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Dulles Intl to Lisbon

Get recent, data-driven insights about flights from Dulles Intl to Lisbon including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Lisbon?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Lisbon. Price data was last updated on November 15, 2024.

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Lisbon may vary depending on when you book. For the best chance of a lower fare, look to book 60 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, December is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Lisbon (average of $589). Flying from Washington, D.C. Dulles Intl Airport to Lisbon in June is currently the most expensive (average of $1,182). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAD to LIS?

Find hourly flight availability from Dulles Intl to Lisbon. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 20, 2024.

It’s optimal to fly from Washington, D.C. Dulles Intl Airport to Lisbon at noon. By choosing this option you can save up to 30% on the cost of your flight, compared to a flight in the evening.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Lisbon

Explore weekly flight availability from Dulles Intl to Lisbon. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 20, 2024.

The most flights from IAD to LIS are scheduled on a Monday (5 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (2 on average).

Rainfall in Lisbon by month

Plan your trip to Lisbon by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Lisbon ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Lisbon when rainfall is around 0.2 in.

Temperature in Lisbon by month

Plan your trip to Lisbon by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Lisbon, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing Lisbon

Get insights into the airlines that provide service to Lisbon. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Lisbon. Reviews last updated November 20, 2024.
To help decide which airline to fly from Washington, D.C. to Lisbon, see what other customers have to say about TAP AIR PORTUGAL, Scandinavian Airlines and Turkish Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
JetBlue
7.5
Good
3,394 reviews

Overall

7.5

Crew

8.2

Entertainment

7.4

Food

6.9

Comfort

7.7

Boarding

7.7

Reviews

1 / 10

Flight canceled, returned to NY and waiting for the new one. Thanks

JetBlue
7.5
Good
3,394 reviews
JetBlue
7.5
Good
3,394 reviews

Overall

7.5

Crew

8.2

Entertainment

7.4

Food

6.9

Comfort

7.7

Boarding

7.7

Reviews

1 / 10

Flight canceled, returned to NY and waiting for the new one. Thanks

Turkish Airlines
7.4
Good
3,915 reviews
JetBlue
7.5
Good
3,394 reviews

Overall

7.5

Crew

8.2

Entertainment

7.4

Food

6.9

Comfort

7.7

Boarding

7.7

Reviews

1 / 10

Flight canceled, returned to NY and waiting for the new one. Thanks

Scandinavian Airlines
7.3
Good
1,301 reviews
JetBlue
7.5
Good
3,394 reviews

Overall

7.5

Crew

8.2

Entertainment

7.4

Food

6.9

Comfort

7.7

Boarding

7.7

Reviews

1 / 10

Flight canceled, returned to NY and waiting for the new one. Thanks

American Airlines
7.2
Good
10,000 reviews
JetBlue
7.5
Good
3,394 reviews

Overall

7.5

Crew

8.2

Entertainment

7.4

Food

6.9

Comfort

7.7

Boarding

7.7

Reviews

1 / 10

Flight canceled, returned to NY and waiting for the new one. Thanks

Icelandair
7.2
Good
555 reviews
JetBlue
7.5
Good
3,394 reviews

Overall

7.5

Crew

8.2

Entertainment

7.4

Food

6.9

Comfort

7.7

Boarding

7.7

Reviews

1 / 10

Flight canceled, returned to NY and waiting for the new one. Thanks

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Lisbon. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Lisbon from Washington, D.C. Dulles Intl?

    Most people fly into Lisbon Humberto Delgado (LIS) if they book a flight to Lisbon from Washington, D.C. Dulles Intl. On average, Humberto Delgado has 3 inbound flights from Washington, D.C. Dulles Intl per day from 16 airlines. Lisbon Humberto Delgado is conveniently located just 4.2 mi from Lisbon’s city center.

  • What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Lisbon round-trip?

    Cheapflights users have booked flights from Washington, D.C. Dulles Intl Airport to Lisbon round-trip from $569. Other airlines that can offer you cheap pricing are TAP AIR PORTUGAL, from $576, and Royal Air Maroc, from $584. Icelandair is currently priced 36% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Lisbon one-way?

    The cheapest airline one-way is TAP AIR PORTUGAL, with whom users have recently found tickets for as low as $356. However, be on the lookout for offers from Royal Air Maroc and Scandinavian Airlines, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Lisbon for a low price.

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Lisbon?

    The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Lisbon are TAP AIR PORTUGAL (80%), JetBlue (80%) and Air Canada (73%).

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

    The cheapest flight price from Washington, D.C. Dulles Intl Airport to Lisbon is $278. On average you can expect to pay $1,468. The most popular route, (Washington, D.C. Dulles Intl - Lisbon Humberto Delgado), can usually be booked for $558.

  • Can I find deals for flights from Dulles Intl to Lisbon that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Lisbon flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Lisbon?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Lisbon.

  • Can I find deals for business class flights from Dulles Intl to Lisbon?

    Yes. Cheapflights offers flight deals from Dulles Intl to Lisbon by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, December is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Lisbon (average of $589). Flying from Washington, D.C. Dulles Intl Airport to Lisbon in June is currently the most expensive (average of $1,182). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from Dulles Intl to Lisbon

Discover the top 10 airlines that operate flights from Dulles Intl to Lisbon. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,629,791 searches. Data last updated November 20, 2024.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$296Average$380FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$430Average$736FlexibilityNo cancel feeOn-time77%
Royal Air MarocCheapest$519Average$573FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$522Average$762FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$539Average$739FlexibilityNo cancel feeOn-time70%
TAP AIR PORTUGALCheapest$540Average$910FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$575Average$783FlexibilityNo cancel feeOn-time75%
SWISSCheapest$631Average$895FlexibilityNo cancel feeOn-time79%
Turkish AirlinesCheapest$636Average$673FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$655Average$856FlexibilityNo cancel feeOn-timeN/A
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