How long is the flight from Washington, D.C. to Portugal?

United Airlines, Delta, and TAP AIR PORTUGAL can get you from Washington, D.C. to Portugal in just under 14h 30m. Your travel time can differ by up to 7h 45m. Washington, D.C. and Portugal are separated by a distance of 3537 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

One-way options have recently been found by users for as low as $359 on Scandinavian Airlines. Other airlines that offer cheap prices include Royal Air Maroc from $364 and Air Canada from $377 one-way.

In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.

If weather is an important factor for your trip to Portugal, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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

While some choose either Baltimore/Washington - Lisbon Humberto Delgado or Washington, D.C. Reagan-National - Lisbon Humberto Delgado, Washington, D.C. Dulles Intl - Lisbon Humberto Delgado is the most popular route from Washington, D.C. to Portugal.

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

Looking for the cheapest flight from Washington, D.C. to Portugal? While on average our users pay $1,308, our data indicates the cheapest price to be $202. The most popular route (Washington, D.C. Dulles Intl - Lisbon Humberto Delgado), is priced around $440.

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

The top 3 most reliable airlines when flying from Washington, D.C. to Portugal are JetBlue (81%), TAP AIR PORTUGAL (81%) and Air Canada (73%).

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

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

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

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

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

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

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

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

$227+ Flights from Washington, D.C. to Portugal

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

Most accurate provider	Mytrip 3 stars
Most trusted provider	Mytrip 3 stars
Round-trip from	$450 (Mytrip)
One-way from	$227 (Kiwi.com)
Popular in	December
Cheapest in	February
Average price	$785
Good round-trip deal	$471 or less
Good one-way deal	$289 or less

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

Search Deals

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

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

Search Deals

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

Search Deals

Highest demand for flights based on searches. 4% potential increase in price ($45 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

Search Deals

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

Search Deals

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

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

Cheapest flights from Washington, D.C. to Portugal
Explore the most affordable flight options available from Washington, D.C. to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

Mon 11/246:15 amBWI - OPO

2 stops22h 15mUnited Airlines

Fri 12/56:00 amOPO - BWI

2 stops20h 08mUnited Airlines

Deal found 10/29

$484

Wed 11/195:25 pmIAD - OPO

1 stop12h 50mMultiple Airlines

Tue 12/1612:30 pmOPO - IAD

2 stops15h 51mMultiple Airlines

Deal found 10/28

$488

Wed 11/196:15 amBWI - OPO

2 stops22h 15mUnited Airlines

Tue 12/166:00 amOPO - BWI

2 stops16h 25mUnited Airlines

Deal found 10/28

$488

Tue 11/1112:36 pmIAD - OPO

2 stops16h 54mDelta

Tue 11/1811:15 amOPO - IAD

2 stops18h 01mDelta

Deal found 10/27

$492

Tue 11/112:35 pmBWI - OPO

2 stops14h 55mDelta

Tue 11/186:05 amOPO - BWI

2 stops17h 58mDelta

Deal found 10/27

$492

Wed 12/311:13 amDCA - OPO

2 stops18h 17mDelta

Wed 12/106:00 amOPO - DCA

2 stops21h 57mDelta

Deal found 10/30

$492

Wed 12/39:45 amIAD - OPO

2 stops22h 30mAir Canada

Mon 12/86:00 amOPO - IAD

2 stops43h 59mAir Canada

Deal found 10/30

$495

Wed 12/36:00 amDCA - OPO

2 stops26h 15mAir Canada

Mon 12/86:00 amOPO - DCA

2 stops57h 21mAir Canada

Deal found 10/30

$495

Sun 11/238:30 amIAD - OPO

2 stops25h 45mMultiple Airlines

Tue 12/96:00 amOPO - IAD

2 stops19h 26mMultiple Airlines

Deal found 10/28

$496

Wed 11/1912:11 pmIAD - OPO

2 stops17h 19mDelta

Tue 12/1611:15 amOPO - IAD

2 stops17h 57mDelta

Deal found 10/28

$498

Wed 12/312:50 pmIAD - OPO

2 stops17h 50mUnited Airlines

Wed 12/106:00 amOPO - IAD

2 stops43h 26mUnited Airlines

Deal found 10/27

$499

Wed 12/36:00 amDCA - OPO

2 stops24h 40mUnited Airlines

Wed 12/1712:30 pmOPO - DCA

2 stops29h 43mUnited Airlines

Deal found 10/29

$499

Best flights from Washington, D.C. to Portugal
Discover carefully curated flight deals from Washington, D.C. to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2025.

Mon 11/246:15 amBWI - OPO

2 stops22h 15mUnited Airlines

Fri 12/56:00 amOPO - BWI

2 stops20h 08mUnited Airlines

Deal found 10/29

$484

Tue 11/1112:36 pmIAD - OPO

2 stops16h 54mDelta

Tue 11/1811:15 amOPO - IAD

2 stops18h 01mDelta

Deal found 10/27

$492

Wed 12/39:45 amIAD - OPO

2 stops22h 30mMultiple Airlines

Wed 12/1012:55 pmOPO - IAD

2 stops37h 04mMultiple Airlines

Deal found 10/30

$492

Fri 1/1610:30 pmIAD - OPO

1 stop14h 30mTAP AIR PORTUGAL

Wed 1/2110:00 amOPO - IAD

1 stop16h 00mTAP AIR PORTUGAL

Deal found 10/29

$499

Tue 12/29:15 pmIAD - LIS

1 stop31h 45mTurkish Airlines

Tue 12/911:30 amLIS - IAD

1 stop29h 15mTurkish Airlines

Deal found 10/28

$638

Sun 1/185:00 pmDCA - LIS

1 stop10h 00mKLM

Wed 1/2810:00 amLIS - DCA

1 stop11h 29mKLM

Deal found 10/29

$805

Tue 1/138:35 pmBWI - LIS

1 stop16h 05mBritish Airways

Mon 1/1912:55 pmLIS - BWI

1 stop34h 50mBritish Airways

Deal found 10/29

$808

Wed 11/196:15 amBWI - OPO

2 stops22h 15mUnited Airlines

Tue 12/166:00 amOPO - BWI

2 stops16h 25mUnited Airlines

Deal found 10/28

$488

Wed 2/1110:05 amBWI - OPO

2 stops21h 00mMultiple Airlines

Wed 2/256:00 amOPO - BWI

2 stops20h 27mMultiple Airlines

Deal found 10/28

$492

Wed 2/1110:54 amBWI - OPO

2 stops18h 36mDelta

Wed 2/256:00 amOPO - BWI

2 stops21h 59mDelta

Deal found 10/28

$492

Thu 1/17:00 amDCA - LIS

2 stops28h 05mScandinavian Airlines

Thu 1/86:55 pmLIS - DCA

2 stops29h 57mScandinavian Airlines

Deal found 10/29

$1,007

Tue 11/112:35 pmBWI - OPO

2 stops14h 55mDelta

Tue 11/186:05 amOPO - BWI

2 stops17h 58mDelta

Deal found 10/27

$492

Tue 12/92:55 pmDCA - OPO

2 stops14h 35mMultiple Airlines

Tue 12/1611:15 amOPO - DCA

2 stops16h 42mMultiple Airlines

Deal found 10/29

$492

Wed 12/312:50 pmIAD - OPO

2 stops17h 50mUnited Airlines

Wed 12/106:00 amOPO - IAD

2 stops43h 26mUnited Airlines

Deal found 10/27

$499

Thu 4/1610:35 pmIAD - PDL

1 stop21h 10mTAP AIR PORTUGAL

Thu 4/237:40 pmPDL - IAD

1 stop23h 25mTAP AIR PORTUGAL

Deal found 10/28

$557

Wed 12/311:13 amDCA - OPO

2 stops18h 17mDelta

Wed 12/106:00 amOPO - DCA

2 stops21h 57mDelta

Deal found 10/30

$492

Thu 11/275:33 pmIAD - OPO

1 stop10h 57mMultiple Airlines

Thu 12/46:00 amOPO - IAD

1 stop13h 35mMultiple Airlines

Deal found 10/28

$499

Wed 12/312:50 pmIAD - OPO

2 stops17h 50mUnited Airlines

Wed 12/176:00 amOPO - IAD

2 stops20h 14mUnited Airlines

Deal found 10/27

$503

Thu 1/295:30 pmIAD - PDL

1 stop26h 15mTAP AIR PORTUGAL

Mon 2/27:25 pmPDL - IAD

1 stop23h 10mTAP AIR PORTUGAL

Deal found 10/29

$557

Wed 12/310:20 amBWI - OPO

2 stops20h 20mUnited Airlines

Wed 12/1712:30 pmOPO - BWI

2 stops26h 18mUnited Airlines

Deal found 10/27

$503

Thu 11/2710:56 amBWI - OPO

2 stops17h 34mMultiple Airlines

Thu 12/47:25 pmOPO - BWI

2 stops30h 43mMultiple Airlines

Deal found 10/28

$512

Wed 12/311:13 amDCA - OPO

2 stops18h 17mDelta

Sun 12/711:15 amOPO - DCA

2 stops17h 43mDelta

Deal found 10/29

$517

Sat 1/315:30 pmIAD - PDL

1 stop10h 55mTAP AIR PORTUGAL

Sat 2/146:30 amPDL - IAD

1 stop12h 45mTAP AIR PORTUGAL

Deal found 10/29

$571

Wed 12/310:20 amBWI - OPO

2 stops20h 20mUnited Airlines

Wed 12/106:00 amOPO - BWI

2 stops16h 25mUnited Airlines

Deal found 10/27

$503

Thu 4/910:35 pmIAD - PDL

1 stop16h 15mTAP AIR PORTUGAL

Tue 4/146:30 amPDL - IAD

1 stop12h 35mTAP AIR PORTUGAL

Deal found 10/29

$572

Thu 11/271:00 pmIAD - OPO

2 stops16h 30mDelta

Thu 12/411:15 amOPO - IAD

2 stops17h 57mDelta

Deal found 10/28

$523

Wed 12/31:10 pmBWI - OPO

2 stops17h 30mMultiple Airlines

Mon 12/84:15 pmOPO - BWI

2 stops30h 10mMultiple Airlines

Deal found 10/29

$523

Mon 12/2910:33 pmIAD - OPO

2 stops32h 07mUnited Airlines

Fri 1/912:30 pmOPO - IAD

2 stops28h 23mUnited Airlines

Deal found 10/29

$504

Mon 3/236:30 pmIAD - PDL

1 stop10h 45mTAP AIR PORTUGAL

Tue 3/316:30 amPDL - IAD

1 stop12h 35mTAP AIR PORTUGAL

Deal found 10/30

$575

Fri 11/281:00 pmIAD - OPO

1 stop15h 30mMultiple Airlines

Fri 12/512:50 pmOPO - IAD

1 stop32h 50mMultiple Airlines

Deal found 10/29

$526

Last-minute flights from Washington, D.C. to Portugal
Discover last-minute flight deals from Washington, D.C. to Portugal. Data last updated October 30, 2025 and is based on user searches.

Tue 11/1112:36 pmIAD - OPO

2 stops16h 54mDelta

Tue 11/1811:15 amOPO - IAD

2 stops18h 01mDelta

Deal found 10/27

$492

Tue 11/112:35 pmBWI - OPO

2 stops14h 55mDelta

Tue 11/186:05 amOPO - BWI

2 stops17h 58mDelta

Deal found 10/27

$492

Wed 11/195:25 pmIAD - OPO

1 stop12h 50mMultiple Airlines

Tue 12/1612:30 pmOPO - IAD

2 stops15h 51mMultiple Airlines

Deal found 10/28

$488

Wed 11/196:15 amBWI - OPO

2 stops22h 15mUnited Airlines

Tue 12/166:00 amOPO - BWI

2 stops16h 25mUnited Airlines

Deal found 10/28

$488

Wed 11/1912:11 pmIAD - OPO

2 stops17h 19mDelta

Tue 12/1611:15 amOPO - IAD

2 stops17h 57mDelta

Deal found 10/28

$498

Wed 11/1910:56 amBWI - OPO

2 stops17h 34mMultiple Airlines

Mon 12/1512:55 pmOPO - BWI

2 stops33h 30mMultiple Airlines

Deal found 10/29

$500

Sun 11/238:30 amIAD - OPO

2 stops25h 45mMultiple Airlines

Tue 12/96:00 amOPO - IAD

2 stops19h 26mMultiple Airlines

Deal found 10/28

$496

Mon 11/246:15 amBWI - OPO

2 stops22h 15mUnited Airlines

Fri 12/56:00 amOPO - BWI

2 stops20h 08mUnited Airlines

Deal found 10/29

$484

Thu 11/275:33 pmIAD - OPO

1 stop10h 57mMultiple Airlines

Thu 12/46:00 amOPO - IAD

1 stop13h 35mMultiple Airlines

Deal found 10/28

$499

Thu 11/2710:56 amBWI - OPO

2 stops17h 34mMultiple Airlines

Thu 12/47:25 pmOPO - BWI

2 stops30h 43mMultiple Airlines

Deal found 10/28

$512

Fri 11/285:33 pmIAD - OPO

1 stop10h 57mUnited Airlines

Fri 12/512:30 pmOPO - IAD

2 stops23h 57mUnited Airlines

Deal found 10/29

$509

Fri 11/286:15 amBWI - OPO

2 stops22h 15mUnited Airlines

Fri 12/56:00 amOPO - BWI

2 stops36h 50mUnited Airlines

Deal found 10/29

$513

One-way flights from Washington, D.C. to Portugal
Search for one-way flight options from Washington, D.C. to Portugal. Find affordable one-way fares based on user searches. Data last updated October 30, 2025.

Sun 1/1110:00 pmBWI - LIS

3 stops60h 00mMultiple Airlines

Deal found 10/30

$227

Mon 12/810:40 amBWI - LIS

2 stops41h 40mMultiple Airlines

Deal found 10/29

$268

Mon 11/179:13 amBWI - LIS

3 stops41h 42mMultiple Airlines

Deal found 10/28

$281

Mon 12/86:51 pmBWI - OPO

3 stops59h 54mMultiple Airlines

Deal found 10/27

$282

Mon 12/15:30 pmIAD - OPO

3 stops47h 00mMultiple Airlines

Deal found 10/29

$286

Fri 12/128:37 amBWI - OPO

3 stops43h 18mMultiple Airlines

Deal found 10/29

$292

Mon 12/85:30 pmIAD - OPO

3 stops36h 10mMultiple Airlines

Deal found 10/27

$295

Fri 12/128:37 amBWI - LIS

2 stops43h 28mMultiple Airlines

Deal found 10/29

$299

Thu 11/134:15 pmBWI - LIS

3 stops59h 50mMultiple Airlines

Deal found 10/29

$301

Mon 12/18:16 pmBWI - OPO

3 stops58h 29mMultiple Airlines

Deal found 10/29

$303

Tue 11/182:00 pmBWI - LIS

2 stops16h 40mMultiple Airlines

Deal found 10/29

$304

Fri 1/233:37 pmIAD - PDL

3 stops43h 28mMultiple Airlines

Deal found 10/29

$306

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Mon 11/24

6:15 am-9:30 am

2 stops22h 15m

Porto

Fri 12/5

6:00 am-9:08 pm

2 stops20h 08m

$484

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Wed 11/19

6:15 am-9:30 am

2 stops22h 15m

Porto

Tue 12/16

6:00 am-5:25 pm

2 stops16h 25m

$488

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Tue 11/11

12:36 pm-10:30 am

2 stops16h 54m

Porto

Tue 11/18

11:15 am-12:16 am

2 stops18h 01m

$492

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 12/3

9:45 am-1:15 pm

2 stops22h 30m

Porto

Wed 12/10

12:55 pm-8:59 pm

2 stops37h 04m

$492

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Wed 2/11

10:05 am-12:05 pm

2 stops21h 00m

Porto

Wed 2/25

6:00 am-9:27 pm

2 stops20h 27m

$492

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Wed 2/11

10:54 am-10:30 am

2 stops18h 36m

Porto

Wed 2/25

6:00 am-10:59 pm

2 stops21h 59m

$492

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Tue 11/11

2:35 pm-10:30 am

2 stops14h 55m

Porto

Tue 11/18

6:05 am-7:03 pm

2 stops17h 58m

$492

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Tue 12/9

2:55 pm-10:30 am

2 stops14h 35m

Porto

Tue 12/16

11:15 am-10:57 pm

2 stops16h 42m

$492

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Wed 12/3

11:13 am-10:30 am

2 stops18h 17m

Porto

Wed 12/10

6:00 am-10:57 pm

2 stops21h 57m

$492

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Fri 1/16

10:30 pm-6:00 pm

1 stop14h 30m

Porto

Wed 1/21

10:00 am-9:00 pm

1 stop16h 00m

$499

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 60 results

...

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

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

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

Currently, July is the cheapest month in which you can book a flight from Washington, D.C. to Portugal (average of $346). Flying from Washington, D.C. to Portugal in December is currently the most expensive (average of $551). 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 WAS to PT?

It’s typically best to fly out from Washington, D.C. to Portugal in the morning. Doing so could potentially save you 19% on the flight price compared to flying in the evening, which is usually more expensive.

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

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

Reviews of airlines servicing Portugal

Read reviews from past customers who have flown Delta, United Airlines, and Aer Lingus from Washington, D.C. to Portugal. 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.

Delta

7.9

Good

7,998 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Delta

7.9

Good

7,998 reviews

Delta

7.9

Good

7,998 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

United Airlines

7.4

Good

8,995 reviews

Delta

7.9

Good

7,998 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

Aer Lingus

7.2

Good

1,365 reviews

Delta

7.9

Good

7,998 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

TAP AIR PORTUGAL

7.1

Good

2,040 reviews

Delta

7.9

Good

7,998 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

Royal Air Maroc

6.2

Okay

525 reviews

Delta

7.9

Good

7,998 reviews

Reviews

1 / 20

8.0

Excellent

Matthew,Oct 2025

GSP - ATL

Related info for your journey

How long is the flight from Washington, D.C. to Portugal?
United Airlines, Delta, and TAP AIR PORTUGAL can get you from Washington, D.C. to Portugal in just under 14h 30m. Your travel time can differ by up to 7h 45m. Washington, D.C. and Portugal are separated by a distance of 3537 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.
What are the cheapest airlines to fly from Washington, D.C. to Portugal one-way?
One-way options have recently been found by users for as low as $359 on Scandinavian Airlines. Other airlines that offer cheap prices include Royal Air Maroc from $364 and Air Canada from $377 one-way.
What are the most popular routes from Washington, D.C. to Portugal?
While some choose either Baltimore/Washington - Lisbon Humberto Delgado or Washington, D.C. Reagan-National - Lisbon Humberto Delgado, Washington, D.C. Dulles Intl - Lisbon Humberto Delgado is the most popular route from Washington, D.C. to Portugal.
What are the most reliable airlines from Washington, D.C. to Portugal?
The top 3 most reliable airlines when flying from Washington, D.C. to Portugal are JetBlue (81%), TAP AIR PORTUGAL (81%) and Air Canada (73%).
What are the cheapest flights from Washington, D.C. to Portugal?
Looking for the cheapest flight from Washington, D.C. to Portugal? While on average our users pay $1,308, our data indicates the cheapest price to be $202. The most popular route (Washington, D.C. Dulles Intl - Lisbon Humberto Delgado), is priced around $440.
Can I find deals for flights from Washington, D.C. to Portugal that include hotel bookings?
Yes. In addition to deals on Washington, D.C. to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Washington, D.C. to Portugal?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Portugal.
Can I find deals for business class flights from Washington, D.C. to Portugal?
Yes. Cheapflights offers flight deals from Washington, D.C. to Portugal 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 Washington, D.C. to Portugal?
Currently, July is the cheapest month in which you can book a flight from Washington, D.C. to Portugal (average of $346). Flying from Washington, D.C. to Portugal in December is currently the most expensive (average of $551). 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

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

Airline	Cheapest	Average	Flexibility	On-time
PLAY	Cheapest$345	Average$396	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$493	Average$1,073	FlexibilityNo cancel fee	On-time69%
Scandinavian Airlines	Cheapest$504	Average$599	FlexibilityNo cancel fee	On-time77%
TAP AIR PORTUGAL	Cheapest$506	Average$925	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$508	Average$749	FlexibilityNo cancel fee	On-time71%
British Airways	Cheapest$510	Average$924	FlexibilityNo cancel fee	On-time70%
Iberia	Cheapest$515	Average$721	FlexibilityNo cancel fee	On-time77%
Delta	Cheapest$529	Average$904	FlexibilityNo cancel fee	On-timeN/A
Royal Air Maroc	Cheapest$552	Average$673	FlexibilityNo cancel fee	On-time75%
KLM	Cheapest$555	Average$741	FlexibilityNo cancel fee	On-time75%

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$227+ Cheap flights from Washington, D.C. (WAS) to Portugal

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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.

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

Keep the following information in mind while searching for Washington, D.C. to Portugal flight deals. Data was last updated October 30, 2025.

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

Cheapest flights from Washington, D.C. to PortugalExplore the most affordable flight options available from Washington, D.C. to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

Explore the most affordable flight options available from Washington, D.C. to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

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

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

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

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

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

Find hourly flight availability from Washington, D.C. to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Portugal. Price data was last updated on December 16, 2024.

Reviews of airlines servicing Portugal

Read reviews from past customers who have flown Delta, United Airlines, and Aer Lingus from Washington, D.C. to Portugal. 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.

Related info for your journey

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

How long is the flight from Washington, D.C. to Portugal?

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

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

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

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

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

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

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

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

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Alternative routes for Washington, D.C. to Portugal

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

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Cheapest flights from Washington, D.C. to Portugal
Explore the most affordable flight options available from Washington, D.C. to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.