Menu

Cheap flights from Washington Dulles Intl (IAD) to Lisbon (LIS)

Know your dates, get live prices in seconds:

From
To
Depart
Return
Any month
Compare vs. Cheapflights |
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime
From
To
Depart
Depart
Time
Anytime

We work with more than 300 partners to bring you better travel deals

The best prices from Washington Dulles Intl to Lisbon are usually found in February or September, booked 60 days in advance, depart on a Sunday or Thursday and return on a Tuesday

How to find the cheapest flight from
Washington Dulles Intl (IAD) to Lisbon (LIS)

IAD - LIS
Price
$510 - $966
LIS
Temperature
59 - 84.2 °F
LIS
Rainfall
0 - 1.2 inches
Popular in December High demand for flights, 25% potential price rise
Cheapest in February Best time to find cheap flights, 30% potential price drop
Round-trip from $510 From Washington Dulles Intl to Lisbon
One-way from $466 One-way flight from Washington Dulles Intl to Lisbon
Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Washington Dulles Intl to Lisbon?

Users have found that flying from Washington Dulles Intl to Lisbon on a Thursday 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 Washington Dulles Intl to Lisbon?

Travelers have found it’s best to book a flight 61 days in advance to save up to 78% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 61 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Washington Dulles Intl to Lisbon 1-2 weeks in advance for as low as $1313, or $1956 for flights within the next 24 hours.

What is the cheapest month to fly from Washington Dulles Intl to Lisbon?

February is one of the best times of the year to fly to Lisbon from Washington Dulles Intl. Prices for February average $915 per person but you can even find prices for as low as $497. The most expensive prices can be found in the month of August. Opting for a February flight can save you 41% on your journey compared to booking in February

When is the cheapest time to fly from Washington Dulles Intl to Lisbon (IAD - LIS)?

One of the essential ways to save on airfare from Washington Dulles Intl to Lisbon is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. If a flight is in the morning is possible it can save you up to 14% on airfare.

Cheap flights from Washington Dulles Intl to Lisbon in August, September 2020

The best prices found for IAD to LIS flights for August, September
21 Aug - 6 Sep
$544pp
IAD
Washington Dulles Intl
TAP AIR PORTUGAL
Non-Stop
LIS
Lisbon Humberto Delgado
LIS
Lisbon Humberto Delgado
TAP AIR PORTUGAL
Non-Stop
IAD
Washington Dulles Intl
20 Aug - 2 Sep
$596pp
IAD
Washington Dulles Intl
TAP AIR PORTUGAL
Non-Stop
LIS
Lisbon Humberto Delgado
LIS
Lisbon Humberto Delgado
TAP AIR PORTUGAL
Non-Stop
IAD
Washington Dulles Intl
21 Aug - 15 Dec
$600pp
IAD
Washington Dulles Intl
TAP AIR PORTUGAL
Non-Stop
LIS
Lisbon Humberto Delgado
LIS
Lisbon Humberto Delgado
TAP AIR PORTUGAL
Non-Stop
IAD
Washington Dulles Intl

Washington Dulles Intl to Lisbon 2020 flight deals

Cheap flights to Lisbon from Washington Dulles Intl found for this year
10 Nov - 17 Nov
$535pp
IAD
Washington Dulles Intl
TAP AIR PORTUGAL
Non-Stop
LIS
Lisbon Humberto Delgado
LIS
Lisbon Humberto Delgado
TAP AIR PORTUGAL
Non-Stop
IAD
Washington Dulles Intl
23 Sep - 7 Oct
$536pp
IAD
Washington Dulles Intl
TAP AIR PORTUGAL
Non-Stop
LIS
Lisbon Humberto Delgado
LIS
Lisbon Humberto Delgado
TAP AIR PORTUGAL
Non-Stop
IAD
Washington Dulles Intl
12 Nov - 19 Nov
$539pp
IAD
Washington Dulles Intl
TAP AIR PORTUGAL
Non-Stop
LIS
Lisbon Humberto Delgado
LIS
Lisbon Humberto Delgado
TAP AIR PORTUGAL
Non-Stop
IAD
Washington Dulles Intl

Non-stop flights to Lisbon from Washington Dulles Intl

Save time with Washington Dulles Intl to Lisbon direct flight deals
10 Nov - 17 Nov
$535pp
IAD
Washington Dulles Intl
TAP AIR PORTUGAL
Non-Stop
LIS
Lisbon Humberto Delgado
LIS
Lisbon Humberto Delgado
TAP AIR PORTUGAL
Non-Stop
IAD
Washington Dulles Intl
23 Sep - 7 Oct
$536pp
IAD
Washington Dulles Intl
TAP AIR PORTUGAL
Non-Stop
LIS
Lisbon Humberto Delgado
LIS
Lisbon Humberto Delgado
TAP AIR PORTUGAL
Non-Stop
IAD
Washington Dulles Intl
12 Nov - 19 Nov
$539pp
IAD
Washington Dulles Intl
TAP AIR PORTUGAL
Non-Stop
LIS
Lisbon Humberto Delgado
LIS
Lisbon Humberto Delgado
TAP AIR PORTUGAL
Non-Stop
IAD
Washington Dulles Intl

Last minute flights from Washington Dulles Intl to Lisbon

Late deals on round-trip flights to Lisbon from Washington Dulles Intl, departing today and this week
28 Jul - 25 Aug
$821pp
IAD
Washington Dulles Intl
SWISS
   
2 STOPS
LIS
Lisbon Humberto Delgado
LIS
Lisbon Humberto Delgado
SWISS
 
1 STOP
IAD
Washington Dulles Intl
28 Jul - 25 Aug
$832pp
IAD
Washington Dulles Intl
Multiple Airlines
   
2 STOPS
LIS
Lisbon Humberto Delgado
LIS
Lisbon Humberto Delgado
Lufthansa
 
1 STOP
IAD
Washington Dulles Intl
28 Jul - 4 Aug
$889pp
IAD
Washington Dulles Intl
Multiple Airlines
   
2 STOPS
LIS
Lisbon Humberto Delgado
LIS
Lisbon Humberto Delgado
Lufthansa
 
1 STOP
IAD
Washington Dulles Intl

One-way flights to Lisbon from Washington Dulles Intl

The cheapest one-way flights from Washington Dulles Intl to Lisbon
6:00 pm - 11:25 am
Royal Air Maroc
1 Stop
12h 25m
IAD - LIS
Royal Air Maroc
$466
Gotogate
11:00 am - 7:20 pm
Aeroflot
1 Stop
27h 20m
IAD - LIS
Aeroflot
$502
SmartFares
4:25 pm - 2:50 am
Qatar Airways
1 Stop
29h 25m
IAD - LIS
Qatar Airways
$553
Vayama

Related info for your journey

Useful info, stats and facts about Washington Dulles Intl to Lisbon flights.

Flight FAQs

From Washington Dulles Intl to Lisbon

Are flight prices decreasing from Washington Dulles Intl to Lisbon due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Washington Dulles Intl and Lisbon for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

Can I find flights from Washington Dulles Intl to Lisbon for under $600 on Cheapflights?

Yes, there are multiple flights from Washington Dulles Intl to Lisbon for under $600. The cheapest flight booked recently is on TAP AIR PORTUGAL for just $533, but on average you can expect to pay $560.

Are there nonstop flights from Washington Dulles Intl to Lisbon for under $600 on Cheapflights?

Cheapflights has at least 20 direct flights from Washington Dulles Intl to Lisbon under $600. A good price for a nonstop flight from Washington Dulles Intl to Lisbon is less than $603.

Are there last-minute flights available from Washington Dulles Intl to Lisbon for under $900?

There are currently 20+ open flights from Washington Dulles Intl to Lisbon within the next 7 days for less than $900.

Does it rain more in Washington Dulles Intl or Lisbon?

When traveling, we recommend packing in preparation to handle common weather conditions. The rainfall in Washington Dulles Intl is typically greater than that of Lisbon. We can gather that this will continue over the next 14 days.

Is Washington Dulles Intl weather warmer or cooler than Lisbon?

Temperatures around the 88 °F's can be experienced in July. The weather in Lisbon is colder than in Washington Dulles Intl. Plan for potential changes in flight availability as peak weather approaches in this location.

How long is the flight from Washington Dulles Intl to Lisbon?

For as low as $533, TAP AIR PORTUGAL can have you in Lisbon from Washington Dulles Intl in 7h. This flight may include one or multiple stops.

What are the cheapest airlines flying from Washington Dulles Intl to Lisbon round-trip?

Currently priced at $533, TAP AIR PORTUGAL will fly you from Washington Dulles Intl to Lisbon and back. In addition to TAP AIR PORTUGAL, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Royal Air Maroc for as low as $599. These flights start at 26% lower than the current average price 3 months from now.

What are the cheapest airlines to fly from Washington Dulles Intl to Lisbon one-way?

$272 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on Royal Air Maroc and Aeroflot, with prices starting from $324 and $502, respectively.

Alternative routes for Washington Dulles Intl to Lisbon

Destination information for Lisbon

Things to know before you go. Useful info for your trip from Washington Dulles Intl to Lisbon
Today's exchange rate
$1 = €0.85
Flight duration
7h 50m
Average temperature for August in Lisbon
84.2 °F

Airports servicing Washington

Airports servicing Lisbon

Hourly flight availability from Washington Dulles Intl to Lisbon

Evening 6 PM to midnight 100% of IAD to LIS departures
Early morning Midnight to 6 AM 0% of IAD to LIS departures
Morning 6 AM to noon 0% of IAD to LIS departures
Afternoon Noon to 6 PM 0% of IAD to LIS departures
Midnight
6 AM
Noon
6 PM
Home Europe Portugal Lisbon Cheap flights from Washington Dulles Intl to Lisbon