Cheap flights from Dulles Intl (IAD) to Portugal

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How to find the cheapest flight from
Dulles Intl (IAD) to Portugal

All the information you need to plan the best IAD to LIS flight in 2022: compare Dulles Intl to Portugal flight prices with the expected peak season, weather and rainfall in Portugal.
How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Portugal?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 61 days in advance, which can save you up to 48% on flights from Washington, D.C. Dulles Intl Airport to Portugal compared to booking the week you need them. Waiting 61 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $1,029. For sooner than that we have options available in the next 3 days from $1,037.

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

The best pricing can be found in the month of August. Prices to Portugal from Washington, D.C. Dulles Intl Airport average $682. You can even find prices in August for less than $682, as users have found deals to Portugal from as low as $560. The month of December appears to be one of the more expensive times to travel to Portugal from Washington, D.C. Dulles Intl Airport. Flying in the targeted month can save you up to 21%.

When is the cheapest time to fly from Washington, D.C. Dulles Intl Airport to Portugal (IAD - PT)?

When flying from Washington, D.C. Dulles Intl Airport to Portugal, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap flights from Dulles Intl to Portugal in May, June 2022

The best prices found for IAD to Portugal flights for May, June
13 Jun - 12 Sep
$303pp
IAD
Washington, D.C. Dulles Intl
Iberia
 
1 STOP
LIS
Lisbon Humberto Delgado
LIS
Lisbon Humberto Delgado
Iberia
 
1 STOP
IAD
Washington, D.C. Dulles Intl
3 Jun - 13 Jun
$357pp
IAD
Washington, D.C. Dulles Intl
TAP AIR PORTUGAL
 
1 STOP
OPO
Porto
OPO
Porto
TAP AIR PORTUGAL
 
1 STOP
IAD
Washington, D.C. Dulles Intl
3 Jun - 13 Jun
$361pp
IAD
Washington, D.C. Dulles Intl
TAP AIR PORTUGAL
 
1 STOP
OPO
Porto
OPO
Porto
TAP AIR PORTUGAL
 
1 STOP
IAD
Washington, D.C. Dulles Intl

Washington, D.C. Dulles Intl to Portugal 2022 flight deals

Cheap flights to Portugal from Dulles Intl found for this year
13 Jun - 12 Sep
$303pp
IAD
Washington, D.C. Dulles Intl
Iberia
 
1 STOP
LIS
Lisbon Humberto Delgado
LIS
Lisbon Humberto Delgado
Iberia
 
1 STOP
IAD
Washington, D.C. Dulles Intl
12 Sep - 22 Sep
$346pp
IAD
Washington, D.C. Dulles Intl
TAP AIR PORTUGAL
Non-Stop
LIS
Lisbon Humberto Delgado
LIS
Lisbon Humberto Delgado
TAP AIR PORTUGAL
Non-Stop
IAD
Washington, D.C. Dulles Intl
5 Sep - 13 Sep
$347pp
IAD
Washington, D.C. Dulles Intl
TAP AIR PORTUGAL
Non-Stop
LIS
Lisbon Humberto Delgado
LIS
Lisbon Humberto Delgado
TAP AIR PORTUGAL
Non-Stop
IAD
Washington, D.C. Dulles Intl

Non-stop flights to Portugal from Dulles Intl

Save time with Dulles Intl to Portugal direct flight deals
12 Sep - 22 Sep
$346pp
IAD
Washington, D.C. Dulles Intl
TAP AIR PORTUGAL
Non-Stop
LIS
Lisbon Humberto Delgado
LIS
Lisbon Humberto Delgado
TAP AIR PORTUGAL
Non-Stop
IAD
Washington, D.C. Dulles Intl
5 Sep - 13 Sep
$347pp
IAD
Washington, D.C. Dulles Intl
TAP AIR PORTUGAL
Non-Stop
LIS
Lisbon Humberto Delgado
LIS
Lisbon Humberto Delgado
TAP AIR PORTUGAL
Non-Stop
IAD
Washington, D.C. Dulles Intl
12 Sep - 22 Sep
$350pp
IAD
Washington, D.C. Dulles Intl
TAP AIR PORTUGAL
Non-Stop
LIS
Lisbon Humberto Delgado
LIS
Lisbon Humberto Delgado
TAP AIR PORTUGAL
Non-Stop
IAD
Washington, D.C. Dulles Intl

Last minute flights from Dulles Intl to Portugal

Late deals on round-trip flights to Portugal from Dulles Intl, departing today and this week
31 May - 4 Jun
$456pp
IAD
Washington, D.C. Dulles Intl
Multiple Airlines
   
2 STOPS
LIS
Lisbon Humberto Delgado
LIS
Lisbon Humberto Delgado
Iberia
 
1 STOP
IAD
Washington, D.C. Dulles Intl
31 May - 8 Jun
$470pp
IAD
Washington, D.C. Dulles Intl
Multiple Airlines
 
1 STOP
OPO
Porto
OPO
Porto
Multiple Airlines
 
1 STOP
IAD
Washington, D.C. Dulles Intl
31 May - 12 Jun
$484pp
IAD
Washington, D.C. Dulles Intl
British Airways
 
1 STOP
OPO
Porto
OPO
Porto
British Airways
 
1 STOP
IAD
Washington, D.C. Dulles Intl

One-way flights to Portugal from Washington, D.C. Dulles Intl

The cheapest one-way flights from Dulles Intl to Portugal
1:15 pm - 1:05 pm
Scandinavian Airlines
2 Stops
18h 50m
IAD - LIS
Scandinavian Airlines
$363
oojo
7:50 pm - 6:20 am
Turkish Airlines
1 Stop
30h 30m
IAD - LIS
Turkish Airlines
$389
ScholarTrip
5:30 pm - 2:00 pm
Royal Air Maroc
1 Stop
15h 30m
IAD - LIS
Royal Air Maroc
$396
Travelgenio

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Dulles Intl</span> to <span class="emphasized">Portugal</span> flights.

Flight FAQs

From Dulles Intl to Portugal

Which airlines flying from Washington, D.C. Dulles Intl to Portugal have flexible cancellations due to COVID-19?

TAP AIR PORTUGAL, United Airlines, and British Airways are some of the carriers that may have flexible cancellation policies. You can use our site to filter for other airlines that may also have this kind of flexibility.

Can I find flights from Washington, D.C. Dulles Intl Airport to Portugal for under $400 on Cheapflights?

Yes, there are multiple flights from Washington, D.C. Dulles Intl Airport to Portugal for under $400. The cheapest flight booked recently is on Iberia for just $303, but on average you can expect to pay $362.

Are there nonstop flights from Washington, D.C. Dulles Intl Airport to Portugal for under $400 on Cheapflights?

Cheapflights has at least 20 direct flights from Washington, D.C. Dulles Intl Airport to Portugal under $400. A good price for a nonstop flight from Washington, D.C. Dulles Intl Airport to Portugal is less than $370.

Are there last-minute flights available from Washington, D.C. Dulles Intl Airport to Portugal for under $500?

There are currently 20+ open flights from Washington, D.C. Dulles Intl Airport to Portugal within the next 7 days for less than $500.

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

The cheapest airlines for a one-way flight from Washington, D.C. Dulles Intl Airport to Portugal are TAP AIR PORTUGAL ($319), Royal Air Maroc ($325), and Scandinavian Airlines ($347).

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

The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Portugal are Air Canada (82%), United Airlines (82%) and Lufthansa (82%).

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

Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Portugal? While on average our users pay $1,826, our data indicates the cheapest price to be $306. The most popular route (Washington, D.C. Dulles Intl - Lisbon Humberto Delgado), is priced around $346.

What are the most popular routes from Washington, D.C. Dulles Intl Airport to Portugal?

While some choose either Washington, D.C. Dulles Intl - Porto or Washington, D.C. Dulles Intl - Faro, Washington, D.C. Dulles Intl - Lisbon Humberto Delgado is the most popular route from Washington, D.C. Dulles Intl Airport to Portugal.

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

Before booking your flight from Washington, D.C. Dulles Intl Airport to Portugal check out the most popular airlines for this route: American Airlines, Air Canada or Air France.

COVID Restrictions

View COVID Travel Restrictions for Portugal

Do I need a COVID test to fly to Portugal from Dulles Intl?

Information is based on travel restrictions from Washington, D.C. Dulles Intl to Portugal

Most visitors from Washington, D.C. Dulles Intl need to provide a negative COVID-19 test result and/or quarantine to enter Portugal.

COVID-19 testing requirements
Visitors from Washington, D.C. Dulles Intl must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours for RT-PCR (NAAT) and 24 hours for Antigen (quick-test) before departing to Portugal.

Quarantine requirements
Visitors from Washington, D.C. Dulles Intl are not required to quarantine after entering Portugal.

Documents
Health declaration for Madeira - All passengers disembarking at the Archipelago of Madeira’s airports are recommended to complete the Traveler’s Registration form.


Do I need a test to fly back to Dulles Intl from Portugal?

Returning to Washington, D.C. Dulles Intl from Portugal

COVID-19 testing requirements
Visitors from Portugal must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 1 day for RT-PCR (NAAT) and 1 day for Antigen (quick-test) before departing to Washington, D.C. Dulles Intl.

Quarantine requirements
Visitors from Portugal are not required to quarantine after entering Washington, D.C. Dulles Intl.

Hide COVID Travel Restrictions for Portugal

Destination points for flights from Dulles Intl to Portugal

Select to see more specific information for flights from Dulles Intl to all places in Portugal.

Destination information for Portugal

Things to know before you go - useful duration and weather info for your trip from Dulles Intl to Portugal.
Today's exchange rate
$1 = €0.95
Flight duration from Washington, D.C. Dulles Intl to Portugal
7h 47m

Airports servicing Washington, D.C.

Airports servicing

Cascais Aerodrome (CAT)
Faro (FAO)
Lisbon (LIS)
Porto (OPO)

Top 10 airlines flying from Washington, D.C. Dulles Intl to Portugal

The chart below displays the airlines Cheapflights users traveling from Dulles Intl to Portugal choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
Juneyao Airlines
$12 $21 No cancel fee 66%

We couldn't confirm the COVID-19 safety measures taken by Juneyao Airlines. Please check directly on their website for additional information.

TAP AIR PORTUGAL
$328 $818 No cancel fee N/A
Air Canada
$330 $401 No cancel fee 67%
Delta
$365 $525 No cancel fee N/A
Lufthansa
$370 $499 No cancel fee 76%
United Airlines
$388 $544 No cancel fee 69%
Iberia
$389 $406 No cancel fee 77%
KLM
$394 $458 No cancel fee 75%
American Airlines
$399 $561 No cancel fee 71%
British Airways
$412 $626 No cancel fee 70%
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