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

TAP AIR PORTUGAL, Delta, and United Airlines can get you from Washington, D.C. to Portugal in just under 15h 35m. Your travel time can differ by up to 6h 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 $251 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Royal Air Maroc from $338 and United Airlines from $375 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 Washington, D.C. Reagan-National - Lisbon Humberto Delgado or Baltimore/Washington - 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 $1,696, our data indicates the cheapest price to be $382. The most popular route (Washington, D.C. Dulles Intl - Lisbon Humberto Delgado), is priced around $644.

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 (80%), TAP AIR PORTUGAL (80%) and airBaltic (68%).

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

Consider TAP AIR PORTUGAL, United Airlines or Lufthansa 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.

$269+ Cheap Flights from Washington, D.C. to Portugal

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

Cheapest

Best

Last-minute

One-way

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 August 14, 2026.

Wed 11/49:05 pm -

1 stop14h 50m

Tue 11/105:55 pm -

1 stop30h 10m

Deal found 8/12

$649

Sun 10/118:00 pm -

2 stops44h 10m

Tue 10/208:25 am -

1 stop15h 25m

Deal found 8/10

$650

Sat 10/311:25 am -

2 stops29h 30m

Thu 10/88:25 am -

1 stop15h 25m

Deal found 8/12

$658

Sun 11/89:05 pm -

1 stop14h 50m

Sat 11/145:55 pm -

1 stop30h 10m

Deal found 8/12

$663

Sat 10/108:30 pm -

2 stops31h 30m

Sat 10/246:35 am -

1 stop13h 55m

Deal found 8/11

$667

Fri 11/279:05 pm -

1 stop9h 30m

Thu 12/35:55 pm -

1 stop30h 10m

Deal found 8/11

$672

Sun 11/19:05 pm -

1 stop9h 30m

Thu 11/55:55 pm -

1 stop30h 10m

Deal found 8/10

$673

Wed 10/710:35 pm -

1 stop15h 25m

Tue 10/137:00 am -

1 stop13h 10m

Deal found 8/11

$674

Fri 10/3010:05 pm -

1 stop9h 30m

Tue 11/105:55 pm -

1 stop30h 10m

Deal found 8/10

$674

Wed 11/1110:30 pm -

1 stop10h 00m

Mon 11/238:00 pm -

1 stop23h 45m

Deal found 8/12

$675

Sun 10/119:00 pm -

1 stop9h 50m

Thu 10/226:40 pm -

1 stop29h 20m

Deal found 8/10

$675

Sun 9/275:40 pm -

1 stop10h 20m

Sun 10/49:15 pm -

1 stop22h 55m

Deal found 8/13

$678

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 August 14, 2026.

Wed 11/1112:30 pm -

2 stops15h 35m

Wed 11/1811:15 am -

1 stop33h 30m

Deal found 8/12

$738

Thu 10/2210:35 pm -

1 stop20h 15m

Wed 10/284:30 pm -

1 stop27h 45m

Deal found 8/14

$740

Tue 11/106:10 am -

2 stops22h 20m

Wed 11/1812:35 pm -

2 stops26h 54m

Deal found 8/12

$746

Sun 11/110:15 pm -

Nonstop6h 50m

Mon 11/911:50 am -

1 stop34h 10m

Deal found 8/14

$749

Sun 9/209:40 pm -

1 stop31h 15m

Thu 10/15:05 pm -

1 stop23h 25m

Deal found 8/13

$784

Fri 11/1312:30 pm -

2 stops20h 20m

Tue 11/242:40 pm -

1 stop30h 15m

Deal found 8/11

$806

Wed 11/116:55 pm -

1 stop16h 55m

Sun 11/158:05 pm -

1 stop26h 00m

Deal found 8/11

$840

Sat 11/77:17 pm -

2 stops34h 28m

Sat 11/141:45 pm -

2 stops32h 29m

Deal found 8/13

$1,015

Sat 11/710:15 pm -

2 stops56h 20m

Sat 11/147:05 pm -

1 stop26h 55m

Deal found 8/13

$1,101

Sat 10/248:40 pm -

1 stop12h 10m

Thu 10/297:05 am -

2 stops16h 35m

Deal found 8/9

$1,242

Wed 11/115:02 pm -

1 stop11h 03m

Tue 11/175:00 am -

2 stops18h 37m

Deal found 8/11

$743

Tue 11/106:20 pm -

1 stop10h 10m

Wed 11/1812:35 pm -

1 stop14h 22m

Deal found 8/11

$750

Sat 9/1910:35 pm -

1 stop21h 10m

Fri 9/256:30 am -

1 stop18h 05m

Deal found 8/14

$751

Wed 11/119:05 pm -

2 stops22h 55m

Tue 11/174:10 am -

2 stops19h 55m

Deal found 8/14

$798

Fri 10/306:32 pm -

2 stops15h 18m

Thu 11/52:40 pm -

2 stops30h 48m

Deal found 8/10

$815

Tue 12/87:00 pm -

1 stop9h 30m

Wed 12/1612:35 pm -

1 stop14h 18m

Deal found 8/10

$750

Tue 12/85:16 pm -

2 stops17h 09m

Wed 12/165:00 am -

2 stops17h 28m

Deal found 8/10

$751

Sat 11/710:20 pm -

1 stop36h 05m

Tue 11/174:25 pm -

1 stop24h 20m

Deal found 8/11

$843

Thu 9/2410:35 pm -

1 stop19h 25m

Sat 10/39:15 pm -

1 stop22h 55m

Deal found 8/9

$769

Sat 11/76:55 pm -

1 stop19h 20m

Thu 11/195:40 pm -

1 stop28h 25m

Deal found 8/12

$901

Sat 9/2610:19 pm -

1 stop31h 46m

Mon 10/53:50 pm -

1 stop29h 55m

Deal found 8/13

$820

Wed 1/137:50 pm -

2 stops40h 20m

Wed 1/2010:25 am -

1 stop34h 20m

Deal found 8/10

$827

Sun 10/256:30 pm -

1 stop10h 30m

Wed 11/45:00 am -

2 stops17h 26m

Deal found 8/11

$766

Mon 11/210:30 pm -

Nonstop6h 50m

Mon 11/1612:25 pm -

1 stop32h 30m

Deal found 8/10

$770

Sat 10/105:05 pm -

1 stop9h 45m

Wed 10/2110:00 am -

1 stop15h 35m

Deal found 8/10

$827

Fri 10/303:03 pm -

2 stops13h 02m

Tue 11/35:00 am -

1 stop15h 45m

Deal found 8/9

$848

Mon 10/59:30 pm -

1 stop17h 35m

Mon 10/199:25 pm -

1 stop27h 15m

Deal found 8/10

$933

Sun 10/251:15 pm -

1 stop14h 55m

Wed 11/411:20 am -

1 stop11h 58m

Deal found 8/11

$775

Mon 11/91:50 pm -

2 stops15h 45m

Tue 11/175:00 am -

2 stops17h 56m

Deal found 8/12

$807

Mon 9/1411:25 am -

1 stop17h 40m

Sun 9/203:25 pm -

1 stop33h 10m

Deal found 8/14

$889

Last-minute flights from Washington, D.C. to Portugal
Discover last-minute flight deals from Washington, D.C. to Portugal. Data last updated August 14, 2026 and is based on user searches.

Sat 9/1910:35 pm -

Nonstop7h 20m

Fri 9/255:15 pm -

Nonstop8h 20m

Deal found 8/10

$685

Sun 9/208:30 pm -

2 stops18h 55m

Sat 10/38:20 am -

1 stop12h 10m

Deal found 8/10

$689

Sat 9/268:30 pm -

2 stops22h 00m

Tue 10/68:25 am -

1 stop15h 25m

Deal found 8/11

$700

Sun 9/275:40 pm -

1 stop10h 20m

Sun 10/49:15 pm -

1 stop22h 55m

Deal found 8/13

$678

Mon 9/288:30 pm -

2 stops19h 10m

Tue 10/612:25 pm -

1 stop11h 25m

Deal found 8/9

$698

Mon 9/288:30 pm -

2 stops21h 30m

Tue 10/68:25 am -

1 stop15h 25m

Deal found 8/12

$704

Mon 9/288:30 pm -

2 stops21h 30m

Thu 10/88:25 am -

1 stop15h 25m

Deal found 8/11

$708

Tue 9/2911:25 am -

2 stops25h 50m

Tue 10/68:25 am -

1 stop15h 25m

Deal found 8/12

$693

Tue 9/298:30 pm -

2 stops21h 40m

Thu 10/812:25 pm -

1 stop11h 25m

Deal found 8/11

$715

Wed 9/309:00 pm -

1 stop15h 40m

Thu 10/86:40 pm -

1 stop29h 20m

Deal found 8/11

$675

Wed 9/3010:35 pm -

1 stop15h 25m

Fri 10/165:05 am -

1 stop14h 20m

Deal found 8/13

$679

Wed 9/309:00 pm -

1 stop15h 40m

Tue 10/66:40 pm -

1 stop29h 20m

Deal found 8/10

$698

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 August 14, 2026.

Mon 10/193:04 pm -

3 stops48h 11m

Deal found 8/12

$269

Tue 10/209:15 am -

2 stops29h 40m

Deal found 8/12

$271

Sat 10/179:52 pm -

2 stops54h 18m

Deal found 8/12

$281

Fri 10/168:00 pm -

2 stops44h 10m

Deal found 8/11

$285

Thu 10/159:52 pm -

2 stops44h 33m

Deal found 8/14

$293

Sun 10/118:00 pm -

2 stops59h 20m

Deal found 8/11

$296

Thu 10/298:40 pm -

3 stops46h 35m

Deal found 8/10

$298

Sun 10/411:20 pm -

3 stops38h 25m

Deal found 8/14

$298

Mon 10/511:12 am -

3 stops40h 58m

Deal found 8/14

$300

Sun 10/119:52 pm -

2 stops57h 28m

Deal found 8/11

$306

Mon 10/128:30 pm -

3 stops42h 10m

Deal found 8/11

$308

Sat 10/1011:20 pm -

2 stops54h 30m

Deal found 8/10

$308

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$649 (FlightHub)
One-way from	$269 (Kiwi.com)
Popular in	June
Cheapest in	January
Average price	$1,113
Good round-trip deal	$646 or less
Good one-way deal	$531 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.

Search Deals

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. 22% potential increase in price ($293 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in August 2026

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.

Search Deals

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

Cheapest round-trip

Washington, D.C.Porto

IAD Washington, D.C. Dulles Intl - OPO Porto

IADOPO

Washington, D.C. Dulles Intl

Wed 11/11

12:30 pm-9:05 am

2 stops15h 35m

Porto

Wed 11/18

11:15 am-3:45 pm

1 stop33h 30m

$738

Washington, D.C.Faro

IAD Washington, D.C. Dulles Intl - FAO Faro

IADFAO

Washington, D.C. Dulles Intl

Thu 10/22

10:35 pm-11:50 pm

1 stop20h 15m

Faro

Wed 10/28

4:30 pm-4:15 pm

1 stop27h 45m

$740

Washington, D.C.Porto

DCA Washington, D.C. Reagan-National - OPO Porto

DCAOPO

Washington, D.C. Reagan-National

Wed 11/11

5:02 pm-9:05 am

1 stop11h 03m

Porto

Tue 11/17

5:00 am-6:37 pm

2 stops18h 37m

$743

BaltimorePorto

BWI Baltimore/Washington - OPO Porto

BWIOPO

Baltimore/Washington

Tue 11/10

6:10 am-9:30 am

2 stops22h 20m

Porto

Wed 11/18

12:35 pm-10:29 am

2 stops26h 54m

$746

Washington, D.C.Lisbon

IAD Washington, D.C. Dulles Intl - LIS Lisbon Humberto Delgado

IADLIS

Washington, D.C. Dulles Intl

Sun 11/1

10:15 pm-10:05 am

Nonstop6h 50m

Lisbon Humberto Delgado

Mon 11/9

11:50 am-5:00 pm

1 stop34h 10m

$749

Washington, D.C.Porto

DCA Washington, D.C. Reagan-National - OPO Porto

DCAOPO

Washington, D.C. Reagan-National

Tue 11/10

6:20 pm-9:30 am

1 stop10h 10m

Porto

Wed 11/18

12:35 pm-9:57 pm

1 stop14h 22m

$750

Quickest round-trip

Washington, D.C.Porto

DCA Washington, D.C. Reagan-National - OPO Porto

DCAOPO

Washington, D.C. Reagan-National

Tue 12/8

7:00 pm-9:30 am

1 stop9h 30m

Porto

Wed 12/16

12:35 pm-9:53 pm

1 stop14h 18m

$750

Washington, D.C.Ponta Delgada

IAD Washington, D.C. Dulles Intl - PDL Ponta Delgada Nordela

IADPDL

Washington, D.C. Dulles Intl

Sat 9/19

10:35 pm-11:45 pm

1 stop21h 10m

Ponta Delgada Nordela

Fri 9/25

6:30 am-8:35 pm

1 stop18h 05m

$751

Washington, D.C.Porto

IAD Washington, D.C. Dulles Intl - OPO Porto

IADOPO

Washington, D.C. Dulles Intl

Tue 12/8

5:16 pm-3:25 pm

2 stops17h 09m

Porto

Wed 12/16

5:00 am-5:28 pm

2 stops17h 28m

$751

BaltimoreLisbon

BWI Baltimore/Washington - LIS Lisbon Humberto Delgado

BWILIS

Baltimore/Washington

Sun 10/25

6:30 pm-9:00 am

1 stop10h 30m

Lisbon Humberto Delgado

Wed 11/4

5:00 am-5:26 pm

2 stops17h 26m

$766

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

IAD-FAO

IAD-OPO

DCA-OPO

IAD-LIS

IAD-PDL

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

WAS-PT0

IAD-FAO

IAD-OPO

DCA-OPO

IAD-LIS

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

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. to Portugal (average of $686). Flying from Washington, D.C. to Portugal in June is currently the most expensive (average of $1,341). 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?

When flying from Washington, D.C. 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.

Weekly flight availability from Washington, D.C. to Portugal

The most flights from WAS to PT0 are scheduled on a Thursday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

How often are flights from Washington, D.C. to Portugal delayed?

About 24% of weekly flights between Washington, D.C. and Portugal have experienced delays in the past year, with the average delay time being 149 minutes.

What is the most punctual flight time for Washington, D.C. to Portugal flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Washington, D.C. to Portugal flights?

Over the last year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 21% of flights being delayed.

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

Booking 51 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. to Portugal. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Portugal

Read reviews from past customers who have flown Turkish Airlines,United Airlines, andTAP AIR PORTUGAL 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.

Turkish Airlines

7.4

Good

4,474 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2026

MIA - IST

The cabin is very clean, the service is great, the food is excellent

Turkish Airlines

7.4

Good

4,474 reviews

Turkish Airlines

7.4

Good

4,474 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2026

MIA - IST

The cabin is very clean, the service is great, the food is excellent

United Airlines

7.4

Good

10,110 reviews

Turkish Airlines

7.4

Good

4,474 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2026

MIA - IST

The cabin is very clean, the service is great, the food is excellent

TAP AIR PORTUGAL

7.2

Good

2,368 reviews

Turkish Airlines

7.4

Good

4,474 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2026

MIA - IST

The cabin is very clean, the service is great, the food is excellent

Lufthansa

6.8

Okay

8,194 reviews

Turkish Airlines

7.4

Good

4,474 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2026

MIA - IST

The cabin is very clean, the service is great, the food is excellent

Royal Air Maroc

6.2

Okay

623 reviews

Turkish Airlines

7.4

Good

4,474 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2026

MIA - IST

The cabin is very clean, the service is great, the food is excellent

Related info for your journey

How long is the flight from Washington, D.C. to Portugal?
TAP AIR PORTUGAL, Delta, and United Airlines can get you from Washington, D.C. to Portugal in just under 15h 35m. Your travel time can differ by up to 6h 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 $251 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include Royal Air Maroc from $338 and United Airlines from $375 one-way.
What are the most popular routes from Washington, D.C. to Portugal?
While some choose either Washington, D.C. Reagan-National - Lisbon Humberto Delgado or Baltimore/Washington - 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 (80%), TAP AIR PORTUGAL (80%) and airBaltic (68%).
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 $1,696, our data indicates the cheapest price to be $382. The most popular route (Washington, D.C. Dulles Intl - Lisbon Humberto Delgado), is priced around $644.
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, January is the cheapest month in which you can book a flight from Washington, D.C. to Portugal (average of $686). Flying from Washington, D.C. to Portugal in June is currently the most expensive (average of $1,341). 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

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Dulles Intl to Frederic Chopin flights

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

Airline	Cheapest	Average	Flexibility	On-time
KLM	Cheapest$477	Average$1,021	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$480	Average$1,134	FlexibilityNo cancel fee	On-time69%
Scandinavian Airlines	Cheapest$481	Average$589	FlexibilityNo cancel fee	On-time77%
TAP AIR PORTUGAL	Cheapest$497	Average$971	FlexibilityNo cancel fee	On-timeN/A
Lufthansa	Cheapest$514	Average$1,126	FlexibilityNo cancel fee	On-time76%
Delta	Cheapest$533	Average$1,187	FlexibilityNo cancel fee	On-timeN/A
Royal Air Maroc	Cheapest$544	Average$715	FlexibilityNo cancel fee	On-time75%
Turkish Airlines	Cheapest$580	Average$668	FlexibilityNo cancel fee	On-time77%
British Airways	Cheapest$719	Average$1,208	FlexibilityNo cancel fee	On-time70%
Aer Lingus	Cheapest$747	Average$1,091	FlexibilityNo cancel fee	On-timeN/A

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$269+ 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 10/19. 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

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 August 14, 2026.

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 August 14, 2026.

Best flights from Washington, D.C. to PortugalDiscover 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 August 14, 2026.

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 August 14, 2026.

Last-minute flights from Washington, D.C. to PortugalDiscover last-minute flight deals from Washington, D.C. to Portugal. Data last updated August 14, 2026 and is based on user searches.

Discover last-minute flight deals from Washington, D.C. to Portugal. Data last updated August 14, 2026 and is based on user searches.

One-way flights from Washington, D.C. to PortugalSearch for one-way flight options from Washington, D.C. to Portugal. Find affordable one-way fares based on user searches. Data last updated August 14, 2026.

Search for one-way flight options from Washington, D.C. to Portugal. Find affordable one-way fares based on user searches. Data last updated August 14, 2026.

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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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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 August 14, 2026.

When flying from Washington, D.C. 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.

Weekly flight availability from Washington, D.C. to Portugal

The most flights from WAS to PT0 are scheduled on a Thursday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (2 on average).

How often are flights from Washington, D.C. to Portugal delayed?

About 24% of weekly flights between Washington, D.C. and Portugal have experienced delays in the past year, with the average delay time being 149 minutes.

What is the most punctual flight time for Washington, D.C. to Portugal flights?

Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the morning tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Washington, D.C. to Portugal flights?

Over the last year, TAP AIR PORTUGAL have had the lowest number of delays on this route, with just 21% of flights being delayed.

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

Booking 51 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. to Portugal. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Portugal

Related info for your journey

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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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Washington, D.C. and Portugal flights

Browse other Washington, D.C. and Portugal flight options. Last updated on August 14, 2026.

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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 August 14, 2026.

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 August 14, 2026.

Last-minute flights from Washington, D.C. to Portugal
Discover last-minute flight deals from Washington, D.C. to Portugal. Data last updated August 14, 2026 and is based on user searches.

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 August 14, 2026.