$288+ Cheap flights from Lisbon (LIS) to Dulles Intl (IAD)

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 11/12. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — IAD
Jul 30 — Aug 61

Leverage Cheapflights for Your Next Trip

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

The best prices from Lisbon Humberto Delgado to Washington, D.C. Dulles Intl are usually found in January or February, booked 69 days in advance, depart on a Wednesday or Friday and return on a Monday

Cheap flight deals from Lisbon to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Lisbon (LIS) to Dulles Intl (IAD). 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 July 25, 2024.

Popular in

August

Cheapest in

January

Round-trip from

$468

One-way from

$288
(Kiwi.com)
High demand for flights, 26% potential price rise
Best time to find cheap flights, 27% potential price drop
From Lisbon Humberto Delgado to Washington, D.C. Dulles Intl
One-way flight from Lisbon Humberto Delgado to Washington, D.C. Dulles Intl

What is the cheapest day to fly round-trip from Lisbon to Washington, D.C. Dulles Intl Airport?

Users have found that flying from Lisbon to Washington, D.C. Dulles Intl Airport on a Saturday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

Find a great deal and save up to 21% by booking at least 32 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Lisbon to Washington, D.C. Dulles Intl Airport within the next two weeks, with the cheapest ticket starting at $574.

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

Flights from Lisbon to Washington, D.C. Dulles Intl Airport lean towards being more expensive in July. Prices are generally better when you fly from Lisbon to Washington, D.C. Dulles Intl Airport in November, with the cheapest ticket starting at $486.

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

It’s typically best to fly out from Lisbon to Washington, D.C. Dulles Intl Airport in the morning. Doing so could potentially save you 1% on the flight price compared to flying at noon, which is usually more expensive.

Cheap Lisbon to Dulles Intl flights in July & August 2024

Find cheap flight options from Lisbon to Dulles Intl specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Prices were last updated on July 25, 2024.
These are some of the best deals we've found on flights to Washington, D.C. in 2024 at this time. More deals are always being added, so be sure to check back regularly.
This Lufthansa deal was found by Cheapflights users on 7/25. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/266:15 amLIS - IAD
1 stop18h 10mLufthansa
Sun 9/86:00 pmIAD - LIS
1 stop23h 05mLufthansa
Deal found 7/25$561
This Lufthansa deal was found by Cheapflights users on 7/25. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/266:15 amLIS - IAD
1 stop18h 10mLufthansa
Sun 9/810:20 pmIAD - LIS
2 stops18h 45mLufthansa
Deal found 7/25$584
This SWISS deal was found by Cheapflights users on 7/25. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/245:30 pmLIS - IAD
2 stops51h 45mSWISS
Mon 9/28:45 pmIAD - LIS
1 stop12h 55mSWISS
Deal found 7/25$603
This deal was found by Cheapflights users on 7/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/266:15 amLIS - IAD
2 stops18h 50mLufthansa
Sun 9/810:20 pmIAD - LIS
2 stops18h 45mLufthansa
Deal found 7/25$610
This SWISS deal was found by Cheapflights users on 7/25. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/245:30 pmLIS - IAD
2 stops51h 45mSWISS
Mon 9/28:45 pmIAD - LIS
2 stops36h 00mSWISS
Deal found 7/25$632
This United Airlines deal was found by Cheapflights users on 7/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/267:30 amLIS - IAD
1 stop35h 00mUnited Airlines
Sun 9/810:15 pmIAD - LIS
Nonstop7h 15mUnited Airlines
Deal found 7/25$650
This Kissandfly.com deal was found by Cheapflights users on 7/25. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2412:15 pmLIS - IAD
1 stop32h 00mLufthansa
Sat 8/3110:20 pmIAD - LIS
1 stop18h 20mLufthansa
Deal found 7/25$681
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2110:00 pmLIS - IAD
3 stops24h 40mMultiple Airlines
Wed 9/46:50 pmIAD - LIS
2 stops18h 00mMultiple Airlines
Deal found 7/25$709
This United Airlines deal was found by Cheapflights users on 7/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2612:20 pmLIS - IAD
Nonstop8h 10mUnited Airlines
Sun 9/810:15 pmIAD - LIS
Nonstop7h 15mUnited Airlines
Deal found 7/25$715

Lisbon to Dulles Intl 2024 flight deals

Discover exclusive flight deals for travel between Lisbon and Dulles Intl in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 25, 2024.
These are some of the best deals we've found on flights to Washington, D.C. in 2024 at this time. More deals are always being added, so be sure to check back regularly.
This deal was found by Cheapflights users on 7/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/198:25 amLIS - IAD
1 stop15h 50mAmerican Airlines
Sat 10/510:45 pmIAD - LIS
1 stop19h 30mAmerican Airlines
Deal found 7/25$475
This deal was found by Cheapflights users on 7/25. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/196:35 amLIS - IAD
1 stop17h 40mAmerican Airlines
Sat 10/510:45 pmIAD - LIS
1 stop19h 30mAmerican Airlines
Deal found 7/25$493
This Billigflug deal was found by Cheapflights users on 7/25. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/196:35 amLIS - IAD
1 stop17h 40mMultiple Airlines
Sat 10/510:45 pmIAD - LIS
1 stop19h 30mMultiple Airlines
Deal found 7/25$495
This Billigflug deal was found by Cheapflights users on 7/25. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/198:25 amLIS - IAD
2 stops16h 19mMultiple Airlines
Sat 10/510:45 pmIAD - LIS
1 stop19h 30mMultiple Airlines
Deal found 7/25$499
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/115:55 amLIS - IAD
1 stop15h 20mSWISS
Tue 9/248:45 pmIAD - LIS
1 stop12h 55mSWISS
Deal found 7/25$500
This United Airlines deal was found by Cheapflights users on 7/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/96:15 amLIS - IAD
1 stop18h 10mUnited Airlines
Mon 9/1610:20 pmIAD - LIS
1 stop18h 20mUnited Airlines
Deal found 7/25$502
This AirNGo deal was found by Cheapflights users on 7/25. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/117:20 amLIS - IAD
1 stop18h 10mBritish Airways
Tue 9/2410:45 pmIAD - LIS
1 stop19h 15mBritish Airways
Deal found 7/25$506
This United Airlines deal was found by Cheapflights users on 7/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1911:25 amLIS - IAD
2 stops25h 04mUnited Airlines
Sat 10/510:09 pmIAD - LIS
2 stops30h 11mUnited Airlines
Deal found 7/25$509
This American Airlines deal was found by Cheapflights users on 7/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/196:35 amLIS - IAD
1 stop17h 40mAmerican Airlines
Sat 10/510:45 pmIAD - LIS
1 stop19h 30mAmerican Airlines
Deal found 7/25$511

Lisbon to Dulles Intl flights leaving soon

Find last-minute flight options from Lisbon to Dulles Intl for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 25, 2024.
Users seeking a last-minute flight from Lisbon to Washington, D.C. should consider booking one of these fares. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
This United Airlines deal was found by Cheapflights users on 7/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/612:20 pmLIS - IAD
Nonstop8h 10mUnited Airlines
Sun 8/1110:15 pmIAD - LIS
Nonstop7h 15mUnited Airlines
Deal found 7/24$965
This United Airlines deal was found by Cheapflights users on 7/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/612:20 pmLIS - IAD
Nonstop8h 10mUnited Airlines
Sun 8/1110:20 pmIAD - LIS
1 stop18h 20mUnited Airlines
Deal found 7/24$992
This FlightNetwork deal was found by Cheapflights users on 7/24. 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 FlightNetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/612:20 pmLIS - IAD
Nonstop8h 10mMultiple Airlines
Sun 8/114:00 pmIAD - LIS
2 stops12h 20mMultiple Airlines
Deal found 7/24$1,027
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/19:35 amLIS - IAD
2 stops34h 10mMultiple Airlines
Sat 8/109:20 pmIAD - LIS
1 stop15h 20mMultiple Airlines
Deal found 7/25$1,034
This United Airlines deal was found by Cheapflights users on 7/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/110:00 pmLIS - IAD
1 stop20h 50mUnited Airlines
Sat 8/1010:20 pmIAD - LIS
Nonstop7h 15mUnited Airlines
Deal found 7/25$1,059
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/16:55 amLIS - IAD
2 stops38h 07mMultiple Airlines
Sat 8/108:20 pmIAD - LIS
Nonstop7h 15mMultiple Airlines
Deal found 7/25$1,061
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/16:55 amLIS - IAD
3 stops42h 34mMultiple Airlines
Sat 8/109:20 pmIAD - LIS
1 stop15h 20mMultiple Airlines
Deal found 7/25$1,091
This FlightHub deal was found by Cheapflights users on 7/25. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/112:20 pmLIS - IAD
Nonstop8h 10mLufthansa
Sat 8/1010:20 pmIAD - LIS
Nonstop7h 15mLufthansa
Deal found 7/25$1,113
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/18:15 amLIS - IAD
3 stops17h 56mMultiple Airlines
Sat 8/1010:15 pmIAD - LIS
2 stops27h 15mMultiple Airlines
Deal found 7/25$1,132

One-way flights to Dulles Intl from Lisbon

Search for one-way flight options from Lisbon to Dulles Intl. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,752,877 searches. Data last updated July 25, 2024.
Take a look at some of the one-way flights we've detected from Lisbon to Washington, D.C.. For those needing a return trip from Lisbon, there is a search form available above.
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/129:45 pmLIS - IAD
2 stops48h 10mMultiple Airlines
Deal found 7/24$288
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/189:15 pmLIS - IAD
1 stop24h 40mPLAY
Deal found 7/25$343
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/105:00 pmLIS - IAD
3 stops53h 40mMultiple Airlines
Deal found 7/24$361
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1110:40 amLIS - IAD
3 stops36h 00mMultiple Airlines
Deal found 7/24$366
This Expedia deal was found by Cheapflights users on 7/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/279:20 pmLIS - IAD
1 stop25h 20mPLAY
Deal found 7/23$379
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/119:10 pmLIS - IAD
2 stops25h 30mMultiple Airlines
Deal found 7/24$384
This Kiwi.com deal was found by Cheapflights users on 7/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/29:30 pmLIS - IAD
2 stops25h 10mMultiple Airlines
Deal found 7/24$387
This Combigo deal was found by Cheapflights users on 7/25. 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 Combigo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/116:45 pmLIS - IAD
2 stops27h 55mMultiple Airlines
Deal found 7/25$390
This mytrip.com deal was found by Cheapflights users on 7/25. 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.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1810:05 pmLIS - IAD
3 stops23h 50mMultiple Airlines
Deal found 7/25$392

Find flights from Lisbon to Dulles Intl within your budget

Customize your flight search to find flights from Lisbon to Dulles Intl 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 2,752,877 searches. Data last updated July 25, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$468 - $563

Route

Depart

Return

Price

Lisbon Humberto DelgadoWashington, D.C. Dulles Intl

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Thu 9/12

1 stop14h 40m

Washington, D.C. Dulles Intl

Sat 9/28

1 stop23h 05m

$468

Lisbon Humberto DelgadoWashington, D.C. Dulles Intl

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Thu 9/19

1 stop17h 40m

Washington, D.C. Dulles Intl

Sat 10/5

1 stop19h 30m

$475

Lisbon Humberto DelgadoWashington, D.C. Dulles Intl

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Wed 9/11

3 stops26h 35m

Washington, D.C. Dulles Intl

Sun 9/22

2 stops17h 15m

$485

Lisbon Humberto DelgadoWashington, D.C. Dulles Intl

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Tue 10/8

1 stop25h 45m

Washington, D.C. Dulles Intl

Tue 10/15

1 stop11h 45m

$498

Lisbon Humberto DelgadoWashington, D.C. Dulles Intl

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Thu 9/19

1 stop18h 10m

Washington, D.C. Dulles Intl

Sat 10/5

1 stop28h 55m

$500

Lisbon Humberto DelgadoWashington, D.C. Dulles Intl

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Thu 9/19

2 stops34h 45m

Washington, D.C. Dulles Intl

Sat 10/5

2 stops36h 44m

$522

Lisbon Humberto DelgadoWashington, D.C. Dulles Intl

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Mon 9/9

1 stop15h 20m

Washington, D.C. Dulles Intl

Mon 9/16

2 stops48h 25m

$532

Lisbon Humberto DelgadoWashington, D.C. Dulles Intl

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Tue 9/10

1 stop12h 00m

Washington, D.C. Dulles Intl

Mon 9/23

2 stops19h 49m

$543

Lisbon Humberto DelgadoWashington, D.C. Dulles Intl

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Thu 9/19

Nonstop8h 20m

Washington, D.C. Dulles Intl

Sat 10/5

Nonstop7h 15m

$563

Flights are sorted by cheapest first

Deals found on 7/24

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

Use this chart to determine the optimal time to book a round-trip flight from Lisbon to Dulles Intl. Price data was last updated on July 23, 2024.
To ensure you get the cheapest price possible for a flight from Lisbon to Washington, D.C. Dulles Intl Airport, you should look to book at least 68 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Search Deals

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

Use this chart to determine the cheapest time to fly round-trip from Lisbon to Dulles Intl. Price data was last updated on July 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Lisbon to Washington, D.C. Dulles Intl Airport flight should consider departing on Wednesday mornings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Best time to book a flight from Lisbon to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Lisbon 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.

Temperature and rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature and rainfall totals by month.

WAS

Temperature

35.6 - 80.6 °F

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. 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 Dulles Intl. Reviews last updated July 25, 2024.
See what other customers who have flown with Iberia, Delta and TAP AIR PORTUGAL from Lisbon to Washington, D.C. have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good
9,630 reviews

Entertainment

8.0

Comfort

7.9

Food

7.4

Overall

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

8.0
Very good
9,630 reviews
8.0
Very good
9,630 reviews

Entertainment

8.0

Comfort

7.9

Food

7.4

Overall

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

7.9
Good
1,417 reviews
8.0
Very good
9,630 reviews

Entertainment

8.0

Comfort

7.9

Food

7.4

Overall

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

7.7
Good
1,799 reviews
8.0
Very good
9,630 reviews

Entertainment

8.0

Comfort

7.9

Food

7.4

Overall

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

7.7
Good
1,332 reviews
8.0
Very good
9,630 reviews

Entertainment

8.0

Comfort

7.9

Food

7.4

Overall

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

7.7
Good
933 reviews
8.0
Very good
9,630 reviews

Entertainment

8.0

Comfort

7.9

Food

7.4

Overall

8.0

Boarding

8.2

Crew

8.6

Reviews

1 / 10

One of the worst flights ever. I got to the airport early for my 6:48 pm flight and tried to get on the 4:30 ish flight. The gate agent was one of the worst customer service people in my 20 yrs of flying Delta. Very rude and wouldn’t even talk to me about riding standby. Then flight took off 3 hrs late and when Landed in Atlanta, the gate people wouldn’t even try to get me on the plane. It was still there but door was closed. For all of my almost 2 million miles, the worst experience from Delta. I am highly disappointed as it was not my fault I have to sleep in Atlanta and not Jacksonville Florida

Related info for your journey

Find useful and relevant information for your journey from Lisbon to Dulles Intl. 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 from for flights from Lisbon to Washington, D.C. Dulles Intl?

    Most people fly from Lisbon Humberto Delgado (LIS) if they book a flight from Lisbon to Washington, D.C. Dulles Intl. On average, Humberto Delgado has 1 outbound flight to Washington, D.C. Dulles Intl per day from 6 airlines. Lisbon Humberto Delgado is conveniently located just 4.2 mi from Lisbon’s city center.

  • Can I find flights from Lisbon to Washington, D.C. Dulles Intl Airport for under $500 on Cheapflights?

    Yes, there are multiple flights from Lisbon to Washington, D.C. Dulles Intl Airport for under $500. The cheapest flight booked recently is on Lufthansa for just $468, but on average you can expect to pay $503.

  • Are there nonstop flights from Lisbon to Washington, D.C. Dulles Intl Airport for under $600 on Cheapflights?

    Cheapflights has at least 20 direct flights from Lisbon to Washington, D.C. Dulles Intl Airport under $600. A good price for a nonstop flight from Lisbon to Washington, D.C. Dulles Intl Airport is less than $782.

  • Are there last-minute flights available from Lisbon to Washington, D.C. Dulles Intl Airport for under $1,000?

    There are currently 20+ open flights from Lisbon to Washington, D.C. Dulles Intl Airport within the next 7 days for less than $1,000.

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

    Cheapflights users have booked flights from Lisbon to Washington, D.C. Dulles Intl Airport round-trip from $468. Other airlines that can offer you cheap pricing are American Airlines, from $475, and British Airways, from $498. Lufthansa is priced at 36% lower than the current average price of a flight leaving 3 months from now.

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

    Consider JetBlue (81%), TAP AIR PORTUGAL (81%) or Air Canada (80%) when booking your flight. These represent the most reliable airlines when flying from Lisbon to Washington, D.C. Dulles Intl Airport.

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

    Looking for the cheapest flight from Lisbon to Washington, D.C. Dulles Intl Airport? While on average our users pay $1,718, our data indicates the cheapest price to be $542. The most popular route (Lisbon Humberto Delgado - Washington, D.C. Dulles Intl), is priced around $359.

  • What does LIS to IAD mean?

    This is defined as Lisbon Humberto Delgado Airport (LIS) and Washington, D.C. Dulles Intl Airport (IAD). Codes like Washington, D.C. Dulles Intl Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Lisbon to Dulles Intl that include extra baggage allowance?

    The amount of baggage you can bring on your Lisbon to Dulles Intl flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Lisbon to Dulles Intl with specific airlines?

    Yes, Cheapflights allows you to browse and filter Lisbon to Dulles Intl flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

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

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

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

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

  • Can I find deals for flights from Lisbon to Dulles Intl that allow pets onboard?

    Many airlines flying from Lisbon to Dulles Intl offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Lisbon to Dulles Intl?

    Yes, you can often find last-minute deals on Lisbon to Dulles Intl flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Lisbon to Washington, D.C. Dulles Intl Airport flight deals updated?

    The Lisbon to Washington, D.C. Dulles Intl Airport flight deals you see on this page were last updated on 7/25.

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

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

    Currently, September is the cheapest month in which you can book a flight from Lisbon to Washington, D.C. Dulles Intl Airport (average of $278). Flying from Lisbon to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $378). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Lisbon to Dulles Intl
See prices for flight routes from nearby airports that may be better suited for you.

Top 6 airlines flying from Lisbon to Dulles Intl

Discover the top 6 airlines that operate flights from Lisbon to Dulles Intl. 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 2,752,877 searches. Data last updated July 25, 2024.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$479Average$521FlexibilityNo cancel feeOn-time70%
TAP AIR PORTUGALCheapest$514Average$718FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$544Average$617FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$546Average$660FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$567Average$796FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$661Average$779FlexibilityNo cancel feeOn-time76%

Search flights from Lisbon to Dulles Intl by cabin class

Find flights from Lisbon to Dulles Intl, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from Lisbon to Dulles Intl

Find hourly flight availability from Lisbon to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 25, 2024.
0%of flight departuresEarly morningMidnight to 6 am
20%of flight departuresMorning6 am to noon
80%of flight departuresAfternoonNoon to 6 pm
0%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

Weekly flight availability from Lisbon to Dulles Intl

Explore weekly flight availability from Lisbon to Dulles Intl. 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 July 25, 2024.
Sunday1daily flight
Monday1daily flight
Tuesday1daily flight
Wednesday1daily flight
Thursday1daily flight
Friday1daily flight
Saturday1daily flight
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.