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 $337 on PLAY. Other airlines that offer cheap prices include TAP AIR PORTUGAL from $369 and Royal Air Maroc from $370 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 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 $1,580, our data indicates the cheapest price to be $367. The most popular route (Washington, D.C. Dulles Intl - Lisbon Humberto Delgado), is priced around $525.

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 (70%), TAP AIR PORTUGAL (70%) and Air Canada (60%).

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

Consider American Airlines, Air Canada or Air France when booking your flight. These represent the most popular airlines when flying from Washington, D.C. to Portugal.

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

Thursday flights are generally found to be more expensive for flights from Washington, D.C. to Portugal. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Portugal.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 46 days in advance, which can save you up to 53% on flights from Washington, D.C. to Portugal compared to booking the week you need them. Waiting 46 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 $1,003. For sooner than that we have options available in the next 3 days from $1,003.

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

Flights from Washington, D.C. to Portugal lean towards being more expensive in December. Prices are generally better when you fly from Washington, D.C. to Portugal in February, with the cheapest ticket starting at $349.

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.

$589+ Save on Flights from Washington, D.C. to Portugal

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

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$376 (Mytrip)
One-way from	$242 (Kiwi.com)
Popular in	December
Cheapest in	February
Average price	$686
Good round-trip deal	$700 or less
Good one-way deal	$449 or less

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

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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

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

Search Deals

Highest demand for flights based on searches. 0% potential increase in price ($1 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).

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Average for round-trip flights in February 2025

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

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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 February 23, 2025.

Thu 5/86:50 pmBWI - LIS

1 stop20h 30mPLAY

Mon 5/129:30 pmLIS - BWI

1 stop25h 10mPLAY

Deal found 2/22

$382

Tue 3/117:10 pmBWI - LIS

2 stops24h 20mMultiple Airlines

Tue 3/189:45 pmLIS - BWI

2 stops24h 15mMultiple Airlines

Deal found 2/22

$510

Wed 4/210:59 amBWI - OPO

2 stops18h 41mDelta

Wed 4/96:20 amOPO - BWI

2 stops17h 27mDelta

Deal found 2/22

$559

Sun 3/235:39 pmBWI - OPO

2 stops37h 36mMultiple Airlines

Mon 3/316:00 amOPO - BWI

2 stops44h 42mMultiple Airlines

Deal found 2/22

$573

Sun 3/303:42 pmIAD - OPO

2 stops18h 58mMultiple Airlines

Mon 4/72:35 pmOPO - IAD

2 stops30h 40mMultiple Airlines

Deal found 2/21

$577

Wed 10/19:05 pmIAD - LIS

1 stop10h 10mRoyal Air Maroc

Mon 10/61:15 pmLIS - IAD

1 stop10h 50mRoyal Air Maroc

Deal found 2/22

$577

Sun 3/96:35 pmIAD - OPO

1 stop12h 50mKLM

Sat 3/159:25 amOPO - IAD

1 stop35h 20mKLM

Deal found 2/21

$581

Thu 3/279:30 pmBWI - LIS

1 stop32h 45mBritish Airways

Mon 4/77:15 amLIS - BWI

1 stop17h 20mBritish Airways

Deal found 2/21

$582

Thu 3/2710:55 pmIAD - LIS

1 stop31h 20mBritish Airways

Mon 3/317:15 amLIS - IAD

1 stop17h 55mBritish Airways

Deal found 2/22

$582

Mon 3/178:24 amIAD - OPO

2 stops22h 51mAir Canada

Sun 3/236:00 amOPO - IAD

2 stops36h 01mAir Canada

Deal found 2/20

$585

Mon 3/176:00 amDCA - OPO

2 stops25h 15mMultiple Airlines

Sun 3/236:00 amOPO - DCA

2 stops30h 57mMultiple Airlines

Deal found 2/22

$585

Sat 3/229:45 pmIAD - OPO

1 stop16h 50mSWISS

Mon 3/3112:50 pmOPO - IAD

1 stop32h 25mSWISS

Deal found 2/21

$587

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 February 23, 2025.

Thu 5/86:50 pmBWI - LIS

1 stop20h 30mPLAY

Mon 5/129:30 pmLIS - BWI

1 stop25h 10mPLAY

Deal found 2/21

$376

Mon 5/56:50 pmBWI - LIS

2 stops23h 30mMultiple Airlines

Mon 5/129:00 pmLIS - BWI

2 stops25h 40mMultiple Airlines

Deal found 2/21

$543

Sat 3/299:25 pmBWI - LIS

1 stop13h 50mBritish Airways

Sun 4/67:20 amLIS - BWI

1 stop17h 15mBritish Airways

Deal found 2/21

$554

Wed 4/210:59 amBWI - OPO

2 stops18h 41mDelta

Wed 4/96:20 amOPO - BWI

2 stops17h 27mDelta

Deal found 2/22

$559

Sun 4/69:05 pmIAD - LIS

1 stop15h 35mRoyal Air Maroc

Tue 4/226:40 pmLIS - IAD

1 stop29h 25mRoyal Air Maroc

Deal found 2/22

$578

Mon 3/178:24 amIAD - OPO

2 stops22h 51mAir Canada

Sun 3/236:00 amOPO - IAD

2 stops36h 01mAir Canada

Deal found 2/21

$585

Sat 3/229:45 pmIAD - OPO

1 stop33h 30mSWISS

Mon 3/317:20 pmOPO - IAD

1 stop25h 55mSWISS

Deal found 2/22

$587

Tue 4/295:00 pmIAD - OPO

1 stop12h 00mTAP AIR PORTUGAL

Tue 5/67:00 amOPO - IAD

1 stop13h 20mTAP AIR PORTUGAL

Deal found 2/22

$605

Sun 3/3012:35 pmIAD - OPO

2 stops22h 05mUnited Airlines

Mon 4/76:00 amOPO - IAD

2 stops22h 59mUnited Airlines

Deal found 2/22

$610

Wed 4/2312:30 pmIAD - OPO

1 stop22h 20mTurkish Airlines

Thu 5/810:50 amOPO - IAD

1 stop28h 55mTurkish Airlines

Deal found 2/22

$616

Thu 4/244:35 pmIAD - LIS

1 stop10h 10mIberia

Sun 5/46:35 amLIS - IAD

1 stop13h 25mIberia

Deal found 2/22

$650

Sat 4/268:25 pmIAD - LIS

1 stop20h 10mAer Lingus

Sat 5/311:25 amLIS - IAD

1 stop12h 30mAer Lingus

Deal found 2/22

$673

Last-minute flights from Washington, D.C. to Portugal
Discover last-minute flight deals from Washington, D.C. to Portugal. Data last updated February 23, 2025 and is based on user searches.

Thu 2/275:10 pmIAD - LIS

2 stops23h 40mScandinavian Airlines

Fri 3/77:10 pmLIS - IAD

1 stop25h 30mScandinavian Airlines

Deal found 2/22

$1,001

Sat 3/110:20 pmIAD - LIS

2 stops18h 05mMultiple Airlines

Sat 3/810:00 pmLIS - IAD

2 stops23h 35mMultiple Airlines

Deal found 2/22

$752

Sat 3/110:16 pmIAD - OPO

1 stop9h 59mTAP AIR PORTUGAL

Thu 3/277:00 amOPO - IAD

1 stop13h 00mTAP AIR PORTUGAL

Deal found 2/21

$824

Sun 3/26:10 pmBWI - LIS

1 stop21h 05mPLAY

Mon 3/109:15 pmLIS - BWI

1 stop24h 45mPLAY

Deal found 2/20

$458

Sun 3/27:00 amBWI - LIS

3 stops34h 40mMultiple Airlines

Tue 3/116:45 amLIS - BWI

2 stops39h 15mMultiple Airlines

Deal found 2/20

$638

Sun 3/27:30 pmBWI - LIS

1 stop19h 50mIcelandair

Mon 3/109:20 pmLIS - BWI

1 stop26h 10mIcelandair

Deal found 2/21

$859

Sun 3/211:04 amDCA - LIS

1 stop13h 31mTAP AIR PORTUGAL

Fri 3/710:00 amLIS - DCA

2 stops28h 00mTAP AIR PORTUGAL

Deal found 2/22

$1,060

Sun 3/26:10 pmBWI - LIS

1 stop21h 05mPLAY

Mon 3/109:15 pmLIS - BWI

1 stop24h 45mPLAY

Deal found 2/22

$469

Mon 3/39:25 pmIAD - LIS

1 stop32h 10mTurkish Airlines

Fri 3/144:00 pmLIS - IAD

1 stop25h 15mTurkish Airlines

Deal found 2/22

$638

Mon 3/37:15 pmIAD - OPO

1 stop9h 45mMultiple Airlines

Thu 3/274:45 pmOPO - IAD

2 stops30h 55mMultiple Airlines

Deal found 2/21

$738

Mon 3/36:10 pmDCA - OPO

1 stop12h 40mTAP AIR PORTUGAL

Wed 4/27:00 amOPO - DCA

2 stops17h 59mTAP AIR PORTUGAL

Deal found 2/21

$1,083

Tue 3/49:25 pmIAD - OPO

1 stop31h 35mTurkish Airlines

Tue 4/14:50 pmOPO - IAD

1 stop22h 55mTurkish Airlines

Deal found 2/21

$660

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 February 23, 2025.

Mon 3/247:10 pmBWI - LIS

2 stops22h 10mMultiple Airlines

Deal found 2/21

$242

Tue 4/13:13 pmBWI - OPO

3 stops43h 12mMultiple Airlines

Deal found 2/21

$260

Tue 4/89:35 amIAD - OPO

3 stops48h 50mMultiple Airlines

Deal found 2/20

$265

Sun 5/46:50 pmBWI - LIS

1 stop20h 50mPLAY

Deal found 2/22

$337

Mon 3/178:15 pmIAD - FAO

2 stops32h 55mMultiple Airlines

Deal found 2/20

$359

Mon 3/37:15 pmIAD - OPO

1 stop9h 45mTAP AIR PORTUGAL

Deal found 2/20

$369

Wed 4/1610:20 pmIAD - LIS

Nonstop7h 20mTAP AIR PORTUGAL

Deal found 2/21

$369

Wed 4/239:05 pmIAD - LIS

1 stop19h 25mRoyal Air Maroc

Deal found 2/21

$370

Mon 3/171:45 pmIAD - LIS

2 stops13h 55mMultiple Airlines

Deal found 2/21

$375

Thu 7/249:05 pmIAD - OPO

1 stop15h 55mRoyal Air Maroc

Deal found 2/21

$381

Thu 3/206:35 pmIAD - OPO

1 stop23h 45mDelta

Deal found 2/21

$412

Wed 3/1912:55 pmDCA - OPO

2 stops14h 10mMultiple Airlines

Deal found 2/21

$412

Find flights from Washington, D.C. to Portugal within your budget

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Thu 5/8

6:50 pm-8:20 pm

1 stop20h 30m

Lisbon Humberto Delgado

Mon 5/12

9:30 pm-5:40 pm

1 stop25h 10m

$382

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Tue 3/11

7:10 pm-11:30 pm

2 stops24h 20m

Lisbon Humberto Delgado

Tue 3/18

9:45 pm-6:00 pm

2 stops24h 15m

$510

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Wed 4/2

10:59 am-10:40 am

2 stops18h 41m

Porto

Wed 4/9

6:20 am-6:47 pm

2 stops17h 27m

$559

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Sun 3/23

5:39 pm-11:15 am

2 stops37h 36m

Porto

Mon 3/31

6:00 am-9:42 pm

2 stops44h 42m

$573

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Thu 3/27

9:30 pm-10:15 am

1 stop32h 45m

Lisbon Humberto Delgado

Mon 4/7

7:15 am-7:35 pm

1 stop17h 20m

$582

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Thu 3/27

10:55 pm-10:15 am

1 stop31h 20m

Lisbon Humberto Delgado

Mon 3/31

7:15 am-8:10 pm

1 stop17h 55m

$582

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 3/17

8:24 am-11:15 am

2 stops22h 51m

Porto

Sun 3/23

6:00 am-2:01 pm

2 stops36h 01m

$585

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Mon 3/17

6:00 am-11:15 am

2 stops25h 15m

Porto

Sun 3/23

6:00 am-8:57 am

2 stops30h 57m

$585

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sat 3/22

9:45 pm-11:15 am

1 stop33h 30m

Porto

Mon 3/31

7:20 pm-4:15 pm

1 stop25h 55m

$587

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Mon 3/17

4:10 pm-12:50 pm

2 stops16h 40m

Porto

Sun 3/23

6:00 am-8:57 am

2 stops30h 57m

$587

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

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.

Travel insights for flights from Washington, D.C. to Portugal

Get recent, data-driven insights about flights from Washington, D.C. to Portugal including ideal travel times, pricing trends, and more.

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 $612). Flying from Washington, D.C. to Portugal in June is currently the most expensive (average of $1,234). 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 8% on the flight price compared to flying at noon, 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 Tuesday afternoons when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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

The most flights from WAS to PT0 are scheduled on a Wednesday (5 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Portugal by month

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.

Temperature in Portugal by month

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).

Reviews of airlines servicing Portugal

See what other customers who have flown with Delta, Porter Airlines and KLM from Washington, D.C. to Portugal have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

8,203 reviews

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Porter Airlines

7.9

Good

277 reviews

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,332 reviews

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair

7.6

Good

1,271 reviews

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Azores Airlines

7.6

Good

62 reviews

Delta

8.0

Very good

8,203 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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 $337 on PLAY. Other airlines that offer cheap prices include TAP AIR PORTUGAL from $369 and Royal Air Maroc from $370 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 (70%), TAP AIR PORTUGAL (70%) and Air Canada (60%).
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 $1,580, our data indicates the cheapest price to be $367. The most popular route (Washington, D.C. Dulles Intl - Lisbon Humberto Delgado), is priced around $525.
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 $612). Flying from Washington, D.C. to Portugal in June is currently the most expensive (average of $1,234). 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$317	Average$370	FlexibilityNo cancel fee	On-timeN/A
Air France	Cheapest$422	Average$920	FlexibilityNo cancel fee	On-time77%
Delta	Cheapest$424	Average$968	FlexibilityNo cancel fee	On-timeN/A
KLM	Cheapest$430	Average$826	FlexibilityNo cancel fee	On-time75%
TAP AIR PORTUGAL	Cheapest$459	Average$933	FlexibilityNo cancel fee	On-timeN/A
Iberia	Cheapest$512	Average$704	FlexibilityNo cancel fee	On-time77%
United Airlines	Cheapest$538	Average$1,143	FlexibilityNo cancel fee	On-time69%
Lufthansa	Cheapest$538	Average$936	FlexibilityNo cancel fee	On-time76%
British Airways	Cheapest$539	Average$895	FlexibilityNo cancel fee	On-time70%
Royal Air Maroc	Cheapest$555	Average$692	FlexibilityNo cancel fee	On-time75%

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$242+ 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.

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

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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 February 23, 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 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 February 23, 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 February 23, 2025.

Find flights from Washington, D.C. to Portugal within your budget

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.

Travel insights for flights from Washington, D.C. to Portugal

Get recent, data-driven insights about flights from Washington, D.C. to Portugal including ideal travel times, pricing trends, and more.

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 February 23, 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.

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

Rainfall in Portugal by month

Plan your trip to Portugal by taking into account the average rainfall totals by month.

Temperature in Portugal by month

Plan your trip to Portugal by taking into account the average temperature totals by month.

Reviews of airlines servicing Portugal

See what other customers who have flown with Delta, Porter Airlines and KLM from Washington, D.C. to Portugal have to say. You can also see how each airline compares 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.

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

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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 February 23, 2025.