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

To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $377. Royal Air Maroc flights start at $384 while deals on Aer Lingus start at $459 one-way.

What is the cheapest day to fly from Portugal to Washington, D.C.?

Travelers seeking maximum savings on their Portugal to Washington, D.C. flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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

The most popular flight routes from Portugal to Washington, D.C. are Lisbon Humberto Delgado - Washington, D.C. Dulles Intl, Lisbon Humberto Delgado - Baltimore/Washington and Lisbon Humberto Delgado - Washington, D.C. Reagan-National.

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

Looking for the cheapest flight from Portugal to Washington, D.C.? While on average our users pay $1,227, our data indicates the cheapest price to be $347. The most popular route (Lisbon Humberto Delgado - Washington, D.C. Dulles Intl), is priced around $524.

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

No one likes to see their flight delayed. When booking a flight from Portugal to Washington, D.C. consider choosing Air Canada (72%), United Airlines (72%) or Lufthansa (72%) as they are the most reliable in getting you off to your destination on time.

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

Consider Lufthansa, TAP AIR PORTUGAL or United Airlines when booking your flight. These represent the most popular airlines when flying from Portugal to Washington, D.C..

What is the cheapest day to fly round-trip from Portugal to Washington, D.C.?

Flying to your destination on a Friday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Washington, D.C.. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from Portugal to Washington, D.C.?

To save up to 74% on this flight, we recommend booking at least 49 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Portugal to Washington, D.C. from $542 1-2 weeks out and tickets from $750 for flights departing within the next 72 hours.

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

The best pricing can be found in the month of September. Prices to Washington, D.C. from Portugal average $665. You can even find prices in September for less than $665, as users have found deals to Washington, D.C. from as low as $495. The month of July appears to be one of the more expensive times to travel to Washington, D.C. from Portugal. Flying in the targeted month can save you up to 32%.

Can I find deals for flights from Portugal to Washington, D.C. that include hotel bookings?

Yes. In addition to deals on Portugal to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Portugal to Washington, D.C.?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portugal to Washington, D.C..

Can I find deals for business class flights from Portugal to Washington, D.C.?

Yes. Cheapflights offers flight deals from Portugal to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$559+ Flights from Portugal to Washington, D.C.

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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

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Cheap flight deals from Portugal to Washington, D.C.

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$526 (Iberia)
One-way from	$344 (Kiwi.com)
Popular in	July
Cheapest in	September
Average price	$649
Good round-trip deal	$472 or less
Good one-way deal	$557 or less

Provider with most accurate pricing for Lisbon Humberto Delgado-Washington, D.C. (WAS) flight deals.

Search Deals

Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Washington, D.C. (WAS) flights.

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From Portugal to Washington, D.C. (WAS)

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One-way flight from Portugal to Washington, D.C. (WAS)

Search Deals

Highest demand for flights based on searches. 17% potential increase in price ($140 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).

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Average for round-trip flights in April 2025

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Price to beat on a round-trip flight from Portugal to Washington, D.C. (WAS).

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Price to beat on a one-way flight from Portugal to Washington, D.C. (WAS).

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Find flight deals from Portugal to Washington, D.C.

Cheapest flights from Portugal to Washington, D.C.
Explore the most affordable flight options available from Portugal to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2025.

Tue 5/208:25 amLIS - IAD

1 stop11h 35mMultiple Airlines

Tue 5/277:25 pmIAD - LIS

1 stop15h 05mMultiple Airlines

Deal found 4/22

$526

Sat 5/37:10 amLIS - IAD

1 stop18h 00mBritish Airways

Thu 5/810:40 pmIAD - LIS

1 stop19h 25mBritish Airways

Deal found 4/22

$539

Thu 5/225:00 amLIS - IAD

1 stop15h 35mDelta

Thu 5/299:20 pmIAD - LIS

1 stop15h 30mDelta

Deal found 4/22

$540

Wed 4/3012:10 pmLIS - IAD

1 stop12h 05mAir France

Sun 5/49:20 pmIAD - LIS

1 stop20h 05mAir France

Deal found 4/22

$541

Sun 5/117:30 pmLIS - IAD

1 stop25h 05mKLM

Mon 5/2612:20 pmIAD - LIS

1 stop14h 40mKLM

Deal found 4/22

$543

Wed 4/307:20 amLIS - BWI

1 stop17h 15mBritish Airways

Sun 5/49:20 pmBWI - LIS

1 stop20h 45mBritish Airways

Deal found 4/22

$543

Sat 5/246:55 pmOPO - IAD

1 stop25h 40mKLM

Thu 6/55:25 pmIAD - OPO

1 stop21h 15mKLM

Deal found 4/21

$557

Sun 5/1110:00 amLIS - DCA

1 stop13h 07mMultiple Airlines

Mon 5/262:59 pmDCA - LIS

1 stop14h 46mMultiple Airlines

Deal found 4/22

$558

Sun 5/1110:00 amLIS - DCA

1 stop13h 07mDelta

Mon 5/265:00 pmDCA - LIS

2 stops16h 50mDelta

Deal found 4/22

$559

Sun 5/1110:00 amLIS - IAD

1 stop14h 39mVirgin Atlantic

Mon 5/2612:20 pmIAD - LIS

1 stop14h 40mVirgin Atlantic

Deal found 4/22

$563

Sun 5/1110:00 amLIS - DCA

1 stop17h 45mVirgin Atlantic

Mon 5/2611:00 amDCA - LIS

2 stops18h 45mVirgin Atlantic

Deal found 4/22

$563

Wed 10/86:00 amOPO - DCA

2 stops18h 44mAir Canada

Tue 10/2111:00 amDCA - OPO

2 stops19h 30mAir Canada

Deal found 4/22

$567

Best flights from Portugal to Washington, D.C.
Discover carefully curated flight deals from Portugal to Washington, D.C. that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 22, 2025.

Thu 5/226:35 amLIS - IAD

1 stop13h 25mMultiple Airlines

Thu 5/2910:40 pmIAD - LIS

1 stop14h 30mMultiple Airlines

Deal found 4/21

$526

Mon 5/55:00 amLIS - IAD

1 stop15h 35mDelta

Sat 6/78:33 pmIAD - LIS

2 stops16h 22mDelta

Deal found 4/21

$534

Sun 5/187:20 amLIS - IAD

1 stop17h 50mBritish Airways

Thu 8/710:40 pmIAD - LIS

1 stop14h 30mBritish Airways

Deal found 4/21

$538

Fri 5/23:35 pmLIS - IAD

1 stop29h 00mKLM

Thu 5/85:25 pmIAD - LIS

1 stop24h 25mKLM

Deal found 4/22

$542

Wed 6/410:00 amLIS - IAD

1 stop14h 39mVirgin Atlantic

Mon 6/912:13 pmIAD - LIS

2 stops17h 32mVirgin Atlantic

Deal found 4/20

$557

Wed 10/86:00 amOPO - DCA

2 stops18h 44mAir Canada

Tue 10/2111:00 amDCA - OPO

2 stops19h 30mAir Canada

Deal found 4/22

$567

Sun 6/89:15 amOPO - IAD

1 stop17h 01mUnited Airlines

Sat 6/213:25 pmIAD - OPO

1 stop14h 50mUnited Airlines

Deal found 4/21

$568

Sun 5/1112:20 pmLIS - IAD

Nonstop8h 25mLufthansa

Mon 5/2610:15 pmIAD - LIS

Nonstop7h 15mLufthansa

Deal found 4/21

$574

Sat 5/247:20 pmOPO - IAD

1 stop25h 55mSWISS

Fri 6/68:45 pmIAD - OPO

1 stop30h 10mSWISS

Deal found 4/21

$586

Sat 5/37:10 amLIS - BWI

1 stop17h 25mAmerican Airlines

Tue 11/48:30 pmBWI - LIS

1 stop16h 15mAmerican Airlines

Deal found 4/22

$600

Wed 8/209:15 pmOPO - IAD

1 stop23h 05mTAP AIR PORTUGAL

Wed 10/110:20 pmIAD - OPO

1 stop11h 40mTAP AIR PORTUGAL

Deal found 4/21

$651

Sat 8/166:35 amLIS - IAD

1 stop13h 25mFinnair

Sat 8/3010:45 pmIAD - LIS

1 stop12h 30mFinnair

Deal found 4/21

$669

Last-minute flights from Portugal to Washington, D.C.
Discover last-minute flight deals from Portugal to Washington, D.C.. Data last updated April 22, 2025 and is based on user searches.

Wed 4/3012:10 pmLIS - IAD

1 stop12h 05mAir France

Sun 5/49:20 pmIAD - LIS

1 stop20h 05mAir France

Deal found 4/22

$541

Wed 4/307:20 amLIS - BWI

1 stop17h 15mBritish Airways

Sun 5/49:20 pmBWI - LIS

1 stop20h 45mBritish Airways

Deal found 4/22

$543

Wed 4/305:00 amLIS - DCA

2 stops18h 10mDelta

Sun 5/411:00 amDCA - LIS

2 stops16h 50mDelta

Deal found 4/22

$570

Wed 4/3011:05 amLIS - IAD

2 stops13h 36mAmerican Airlines

Sun 5/410:40 pmIAD - LIS

1 stop14h 15mAmerican Airlines

Deal found 4/22

$578

Thu 5/112:10 pmLIS - IAD

1 stop12h 05mDelta

Sat 5/109:20 pmIAD - LIS

1 stop15h 35mDelta

Deal found 4/22

$542

Thu 5/15:40 amLIS - BWI

2 stops18h 10mDelta

Sat 5/101:00 pmBWI - LIS

2 stops17h 15mDelta

Deal found 4/22

$588

Fri 5/28:25 amLIS - IAD

1 stop11h 35mMultiple Airlines

Tue 11/46:15 pmIAD - LIS

1 stop12h 50mMultiple Airlines

Deal found 4/22

$577

Fri 5/211:25 amLIS - IAD

1 stop14h 43mUnited Airlines

Tue 11/410:05 pmIAD - LIS

Nonstop7h 10mUnited Airlines

Deal found 4/22

$581

Fri 5/211:25 amLIS - DCA

1 stop15h 28mUnited Airlines

Tue 11/412:00 pmDCA - LIS

2 stops16h 20mUnited Airlines

Deal found 4/22

$581

Fri 5/27:20 amLIS - IAD

2 stops21h 36mBritish Airways

Thu 5/810:40 pmIAD - LIS

1 stop19h 25mBritish Airways

Deal found 4/22

$589

Fri 5/211:25 amLIS - DCA

2 stops13h 18mAir Canada

Tue 11/412:55 pmDCA - LIS

2 stops15h 25mAir Canada

Deal found 4/22

$593

Fri 5/212:20 pmLIS - IAD

Nonstop8h 25mLufthansa

Tue 11/410:05 pmIAD - LIS

Nonstop7h 10mLufthansa

Deal found 4/22

$630

One-way flights from Portugal to Washington, D.C.
Search for one-way flight options from Portugal to Washington, D.C.. Find affordable one-way fares based on user searches. Data last updated April 22, 2025.

Fri 5/3011:35 amOPO - BWI

2 stops39h 38mMultiple Airlines

Deal found 4/22

$344

Thu 5/1510:30 pmLIS - BWI

2 stops38h 01mMultiple Airlines

Deal found 4/22

$350

Thu 5/2911:35 amOPO - IAD

2 stops32h 18mMultiple Airlines

Deal found 4/22

$361

Tue 5/208:05 pmLIS - IAD

2 stops47h 48mMultiple Airlines

Deal found 4/20

$372

Wed 5/2112:00 pmLIS - IAD

Nonstop8h 20mTAP AIR PORTUGAL

Deal found 4/21

$377

Sun 6/17:00 pmOPO - IAD

1 stop29h 05mRoyal Air Maroc

Deal found 4/21

$384

Thu 5/159:00 amOPO - IAD

1 stop16h 50mTAP AIR PORTUGAL

Deal found 4/21

$418

Tue 10/76:40 pmLIS - IAD

1 stop29h 25mRoyal Air Maroc

Deal found 4/21

$419

Fri 6/2011:00 amLIS - DCA

1 stop16h 27mMultiple Airlines

Deal found 4/22

$448

Sun 5/410:15 pmLIS - IAD

1 stop22h 35mAer Lingus

Deal found 4/21

$459

Thu 5/299:10 pmOPO - BWI

1 stop25h 30mPLAY

Deal found 4/22

$474

Thu 5/291:30 pmOPO - DCA

2 stops31h 29mMultiple Airlines

Deal found 4/22

$496

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portugal to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Tue 5/20

8:25 am-3:00 pm

1 stop11h 35m

Washington, D.C. Dulles Intl

Tue 5/27

7:25 pm-3:30 pm

1 stop15h 05m

$526

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Sat 5/3

7:10 am-8:10 pm

1 stop18h 00m

Washington, D.C. Dulles Intl

Thu 5/8

10:40 pm-11:05 pm

1 stop19h 25m

$539

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Thu 5/22

5:00 am-3:35 pm

1 stop15h 35m

Washington, D.C. Dulles Intl

Thu 5/29

9:20 pm-5:50 pm

1 stop15h 30m

$540

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Fri 5/2

3:35 pm-3:35 pm

1 stop29h 00m

Washington, D.C. Dulles Intl

Thu 5/8

5:25 pm-10:50 pm

1 stop24h 25m

$542

PortoWashington, D.C.

OPO - IAD

OPOIAD

Porto

Sat 5/24

6:55 pm-3:35 pm

1 stop25h 40m

Washington, D.C. Dulles Intl

Thu 6/5

5:25 pm-7:40 pm

1 stop21h 15m

$557

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Sun 5/11

10:00 am-6:07 pm

1 stop13h 07m

Washington, D.C. Reagan-National

Mon 5/26

5:00 pm-8:00 am

1 stop10h 00m

$558

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Sun 5/11

10:00 am-6:07 pm

1 stop13h 07m

Washington, D.C. Reagan-National

Mon 5/26

5:00 pm-2:50 pm

2 stops16h 50m

$559

LisbonWashington, D.C.

LIS - IAD

LISIAD

Lisbon Humberto Delgado

Sun 5/11

10:00 am-7:39 pm

1 stop14h 39m

Washington, D.C. Dulles Intl

Mon 5/26

12:20 pm-8:00 am

1 stop14h 40m

$563

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Sun 5/11

10:00 am-10:45 pm

1 stop17h 45m

Washington, D.C. Reagan-National

Mon 5/26

11:00 am-10:45 am

2 stops18h 45m

$563

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Wed 10/8

6:00 am-7:44 pm

2 stops18h 44m

Washington, D.C. Reagan-National

Tue 10/21

11:00 am-11:30 am

2 stops19h 30m

$567

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

Showing 1-10 of 60 results

...

Best time to book a flight from Portugal to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Portugal 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.

Cheapflights Insights

Everything you need to know about your flight from Portugal to Washington, D.C.

What is the cheapest month to book a flight from Portugal to Washington, D.C.?

Currently, August is the cheapest month in which you can book a flight from Portugal to Washington, D.C. (average of $309). Flying from Portugal to Washington, D.C. in June is currently the most expensive (average of $383). 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 PT to WAS?

When flying from Portugal to Washington, D.C., the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 29% versus a flight at noon.

Rainfall in Washington, D.C. by month

In terms of precipitation, rainfall in Washington, D.C. ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. when rainfall is around 2.6 in.

Temperature in Washington, D.C. by month

If weather is an important factor for your trip to Washington, D.C., 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 Washington, D.C.

Get a feel of what it's like to fly with Delta, KLM and Finnair from Portugal to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very good

7,920 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,331 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair

7.6

Good

1,272 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Austrian Airlines

7.6

Good

780 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS

7.5

Good

1,582 reviews

Delta

8.0

Very good

7,920 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What are the cheapest airlines to fly from Portugal to Washington, D.C. one-way?
To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $377. Royal Air Maroc flights start at $384 while deals on Aer Lingus start at $459 one-way.
What are the most popular routes from Portugal to Washington, D.C.?
The most popular flight routes from Portugal to Washington, D.C. are Lisbon Humberto Delgado - Washington, D.C. Dulles Intl, Lisbon Humberto Delgado - Baltimore/Washington and Lisbon Humberto Delgado - Washington, D.C. Reagan-National.
What are the most reliable airlines from Portugal to Washington, D.C.?
No one likes to see their flight delayed. When booking a flight from Portugal to Washington, D.C. consider choosing Air Canada (72%), United Airlines (72%) or Lufthansa (72%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Portugal to Washington, D.C.?
Looking for the cheapest flight from Portugal to Washington, D.C.? While on average our users pay $1,227, our data indicates the cheapest price to be $347. The most popular route (Lisbon Humberto Delgado - Washington, D.C. Dulles Intl), is priced around $524.
Can I find deals for flights from Portugal to Washington, D.C. that include hotel bookings?
Yes. In addition to deals on Portugal to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Portugal to Washington, D.C.?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portugal to Washington, D.C..
Can I find deals for business class flights from Portugal to Washington, D.C.?
Yes. Cheapflights offers flight deals from Portugal to Washington, D.C. 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 Portugal to Washington, D.C.?
Currently, August is the cheapest month in which you can book a flight from Portugal to Washington, D.C. (average of $309). Flying from Portugal to Washington, D.C. in June is currently the most expensive (average of $383). 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

Arlington

Alexandria

Woodbridge

Fairfax

Tysons

Springfield

Rockville

Fredericksburg

Gaithersburg

Silver Spring

Linthicum Heights

Falls Church

Laurel

Easton

Herndon

Bowie

Towson

National Harbor

Oxon Hill

Reston

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Portugal to Washington, D.C.

Airline	Cheapest	Average	Flexibility	On-time
TAP AIR PORTUGAL	Cheapest$480	Average$771	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$534	Average$634	FlexibilityNo cancel fee	On-time69%
Lufthansa	Cheapest$536	Average$779	FlexibilityNo cancel fee	On-time76%

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$344+ Cheap flights from Portugal to Washington, D.C. (WAS)

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 5/30. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portugal to Washington, D.C. with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Portugal to Washington, D.C.

Keep the following information in mind while searching for Portugal to Washington, D.C. flight deals. Data was last updated April 22, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Portugal to Washington, D.C.

Cheapest flights from Portugal to Washington, D.C.Explore the most affordable flight options available from Portugal to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2025.

Explore the most affordable flight options available from Portugal to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portugal to Washington, D.C. that are best for you.

Best time to book a flight from Portugal to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from Portugal with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Portugal to Washington, D.C.

What is the cheapest month to book a flight from Portugal to Washington, D.C.?

What is the cheapest time of day to fly from PT to WAS?

Find hourly flight availability from Portugal to Washington, D.C.. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 22, 2025.

Rainfall in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average rainfall totals by month.

Temperature in Washington, D.C. by month

Plan your trip to Washington, D.C. by taking into account the average temperature totals by month.

Reviews of airlines servicing Washington, D.C.

Get a feel of what it's like to fly with Delta, KLM and Finnair from Portugal to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Portugal to Washington, D.C.. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

Can I find deals for flights from Portugal to Washington, D.C. that include hotel bookings?

How can I find direct flights from Portugal to Washington, D.C.?

Can I find deals for business class flights from Portugal to Washington, D.C.?

What is the cheapest month to book a flight from Portugal to Washington, D.C.?

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Alternative routes for Portugal to Washington, D.C.

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Top 3 airlines flying from Portugal to Washington, D.C.

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Cheapest flights from Portugal to Washington, D.C.
Explore the most affordable flight options available from Portugal to Washington, D.C.. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2025.