$660 Cheap United flights from Washington to Lisbon (IAD to LIS)

Find The Best Day To Fly from Washington to Lisbon

Amazing United IAD to LIS Flight Deals

The cheapest flights to Humberto Delgado found within the past 7 days were $651 round trip and $660 one way. Prices and availability subject to change. Additional terms may apply.

Wed, Oct 30 - Wed, Nov 6
IAD
Washington
LIS
Lisbon
$651 Roundtrip, found 12 hours ago
$651
Roundtrip
found 12 hours ago
Select United flight, departing Wed, Oct 30 from Washington to Lisbon, returning Wed, Nov 6, priced at $651 found 12 hours ago

LIS From IAD Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
Eurostars Lisboa Baixa

Eurostars Lisboa Baixa

4 out of 5
per person
Jun 8 - Jun 15
Roundtrip flight included
Washington (IAD) to Lisbon (LIS)
room Select Liberdade

room Select Liberdade

3 out of 5
per person
Jun 8 - Jun 15
Roundtrip flight included
Washington (IAD) to Lisbon (LIS)
Lisboa Carmo Hotel

Lisboa Carmo Hotel

4 out of 5
per person
May 30 - Jun 5
Roundtrip non-stop flight included
Washington (IAD) to Lisbon (LIS)
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Frequently asked questions

Can I catch a flight from IAD to Lisbon/Portela Airport right now?
Make sure you check out the Covid-19 Travel Advisor to see if there are any current quarantine requirements or travel advice reports in effect in Humberto Delgado Airport (LIS) when flying in from IAD.
What terminal is United Airlines at IAD?
Once you’ve received your ticket for your flight from Washington Dulles Intl. Airport (IAD) to Lisbon/Portela Airport, you should be able to identify which terminals United Airlines flies into and out of. If not, ask your air carrier or do some research online for those details.
Are there United Airlines non-stop flights from IAD to LIS?
If you want to fly with United Airlines from IAD to Lisbon/Portela Airport, you’ll need to make at least one stopover. While you’re waiting for your connection, take the opportunity to pick up a snack or go for a walk.
How long is a United Airlines flight from IAD to LIS?
As it will take about 8 hours and 28 minutes for your United Airlines flight to head from IAD to LIS, think about tossing some entertaining travel games in your hand luggage. You never know — the person sitting next to you might welcome a challenge to break up the trip.
How many direct and indirect flights does United Airlines fly from IAD to LIS?
Getting between Dulles Intl. Airport and Lisbon/Portela Airport is a piece of cake. There are no fewer than 7 United Airlines flights connecting IAD and LIS each week.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to Lisbon Airport, please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It’s possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best United flight from Washington IAD to Lisbon LIS 

To find the best deals on flights to Washington from Lisbon with United, just enter your travel dates, filter by United, and hit search. You’ll find 1 flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Washington IAD to Lisbon LIS with United 

If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $651 to $660, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way United flights from Washington IAD to Lisbon LIS 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from Washington to Lisbon costs from $660. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Lisbon LIS from  Washington IAD with United 

To find a cheap United flight from Washington IAD to Lisbon LIS, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on United flights from Washington IAD to Lisbon LIS 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as October, or if you book a flight with a stopover. 

 

Find nonstop flights from Washington IAD to Lisbon LIS with United 

If you’re keen to be on Lisbon soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around 17 hour(s) 15 min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for United flights from Washington IAD to Lisbon LIS 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Lisbon LIS from  Washington IAD with United on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

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