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 $390 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include PLAY from $394 and Scandinavian Airlines from $406 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 popular airlines that fly from Washington, D.C. to Portugal?

Consider American Airlines, Air France or British Airways 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 45 days in advance, which can save you up to 54% on flights from Washington, D.C. to Portugal compared to booking the week you need them. Waiting 45 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.

$594+ 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	$430 (PLAY)
One-way from	$316 (Kiwi.com)
Popular in	December
Cheapest in	February
Average price	$776
Good round-trip deal	$637 or less
Good one-way deal	$388 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 ($6 potential increase over avg. RT price).

Search Deals

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

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Average for round-trip flights in March 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 March 31, 2025.

Thu 10/307:05 pmBWI - LIS

1 stop21h 10mPLAY

Mon 11/39:15 pmLIS - BWI

1 stop24h 40mPLAY

Deal found 3/30

$390

Tue 5/66:50 pmBWI - FAO

1 stop20h 55mPLAY

Sat 5/179:45 pmFAO - BWI

1 stop24h 55mPLAY

Deal found 3/30

$454

Sat 5/106:50 pmBWI - OPO

1 stop20h 15mPLAY

Thu 5/159:10 pmOPO - BWI

1 stop25h 30mPLAY

Deal found 3/30

$475

Tue 5/136:50 pmBWI - LIS

2 stops22h 40mMultiple Airlines

Tue 5/209:15 pmLIS - BWI

3 stops25h 25mMultiple Airlines

Deal found 3/30

$536

Tue 5/66:50 pmBWI - OPO

2 stops17h 25mMultiple Airlines

Tue 5/1310:20 pmOPO - BWI

2 stops24h 20mMultiple Airlines

Deal found 3/31

$559

Wed 4/306:50 pmBWI - FAO

2 stops20h 30mMultiple Airlines

Tue 5/67:20 pmFAO - BWI

2 stops27h 20mMultiple Airlines

Deal found 3/30

$565

Fri 11/78:40 pmIAD - LIS

1 stop9h 55mRoyal Air Maroc

Tue 11/115:55 pmLIS - IAD

1 stop29h 45mRoyal Air Maroc

Deal found 3/30

$567

Sun 8/1710:05 pmIAD - LIS

1 stop16h 20mMultiple Airlines

Mon 8/257:15 amLIS - IAD

1 stop17h 44mMultiple Airlines

Deal found 3/30

$592

Sun 8/1710:05 pmIAD - LIS

1 stop16h 20mScandinavian Airlines

Wed 8/277:15 amLIS - IAD

1 stop17h 44mScandinavian Airlines

Deal found 3/30

$604

Wed 11/121:05 pmIAD - OPO

2 stops21h 10mUnited Airlines

Sun 11/1612:30 pmOPO - IAD

2 stops32h 31mUnited Airlines

Deal found 3/30

$618

Thu 9/255:50 pmIAD - OPO

1 stop24h 10mTAP AIR PORTUGAL

Sun 10/59:15 pmOPO - IAD

1 stop28h 35mTAP AIR PORTUGAL

Deal found 3/30

$619

Sun 9/1412:30 pmIAD - OPO

2 stops22h 00mDelta

Tue 12/2311:15 amOPO - IAD

1 stop33h 30mDelta

Deal found 3/31

$626

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 March 31, 2025.

Sun 9/216:50 pmBWI - LIS

1 stop20h 30mPLAY

Mon 9/299:25 pmLIS - BWI

1 stop25h 15mPLAY

Deal found 3/31

$430

Tue 5/136:50 pmBWI - LIS

2 stops22h 40mMultiple Airlines

Tue 5/209:15 pmLIS - BWI

3 stops25h 25mMultiple Airlines

Deal found 3/30

$536

Tue 9/2310:20 pmIAD - PDL

1 stop16h 20mTAP AIR PORTUGAL

Mon 9/297:40 pmPDL - IAD

1 stop23h 40mTAP AIR PORTUGAL

Deal found 3/30

$627

Mon 4/2110:05 pmIAD - FAO

1 stop29h 45mScandinavian Airlines

Sat 5/310:15 amFAO - IAD

2 stops38h 44mScandinavian Airlines

Deal found 3/31

$639

Wed 4/231:30 pmIAD - OPO

1 stop21h 20mTurkish Airlines

Wed 4/304:50 pmOPO - IAD

1 stop23h 55mTurkish Airlines

Deal found 3/30

$671

Mon 4/288:25 pmIAD - LIS

1 stop20h 10mAer Lingus

Fri 5/910:15 pmLIS - IAD

1 stop25h 40mAer Lingus

Deal found 3/30

$691

Mon 6/238:18 amIAD - OPO

2 stops20h 17mAir Canada

Thu 7/312:10 pmOPO - IAD

2 stops28h 45mAir Canada

Deal found 3/30

$694

Tue 4/224:35 pmIAD - OPO

1 stop10h 00mIberia

Mon 4/288:35 pmOPO - IAD

1 stop23h 25mIberia

Deal found 3/30

$696

Tue 6/310:15 pmIAD - OPO

2 stops30h 05mUnited Airlines

Thu 6/1212:10 pmOPO - IAD

2 stops31h 18mUnited Airlines

Deal found 3/30

$698

Sun 6/88:45 pmIAD - OPO

1 stop16h 30mSWISS

Wed 6/188:40 amOPO - IAD

1 stop12h 35mSWISS

Deal found 3/30

$703

Wed 5/145:30 pmDCA - OPO

2 stops13h 10mAmerican Airlines

Wed 5/2112:20 pmOPO - DCA

2 stops15h 16mAmerican Airlines

Deal found 3/31

$709

Wed 4/169:20 pmIAD - OPO

1 stop30h 05mDelta

Wed 4/2311:25 amOPO - IAD

1 stop33h 10mDelta

Deal found 3/30

$712

Last-minute flights from Washington, D.C. to Portugal
Discover last-minute flight deals from Washington, D.C. to Portugal. Data last updated March 31, 2025 and is based on user searches.

Mon 3/319:05 pmIAD - LIS

1 stop15h 35mRoyal Air Maroc

Sun 4/66:40 pmLIS - IAD

1 stop29h 25mRoyal Air Maroc

Deal found 3/30

$588

Mon 3/3111:05 pmIAD - LIS

2 stops19h 45mMultiple Airlines

Mon 4/710:45 pmLIS - IAD

2 stops19h 45mMultiple Airlines

Deal found 3/30

$685

Mon 3/318:45 pmIAD - OPO

1 stop33h 45mSWISS

Tue 4/88:40 amOPO - IAD

1 stop12h 35mSWISS

Deal found 3/31

$687

Tue 4/111:00 amDCA - LIS

2 stops31h 50mMultiple Airlines

Tue 4/87:10 pmLIS - DCA

2 stops30h 58mMultiple Airlines

Deal found 3/31

$672

Tue 4/15:29 pmIAD - OPO

1 stop11h 16mMultiple Airlines

Tue 4/812:15 pmOPO - IAD

1 stop33h 00mMultiple Airlines

Deal found 3/31

$674

Sun 4/66:50 pmBWI - LIS

1 stop20h 50mPLAY

Mon 4/149:40 pmLIS - BWI

1 stop25h 00mPLAY

Deal found 3/29

$447

Sun 4/66:50 pmBWI - LIS

1 stop20h 50mMultiple Airlines

Tue 4/158:45 amLIS - BWI

2 stops30h 22mMultiple Airlines

Deal found 3/30

$764

Sun 4/610:20 pmIAD - FAO

1 stop14h 00mTAP AIR PORTUGAL

Thu 4/246:05 amFAO - IAD

1 stop14h 15mTAP AIR PORTUGAL

Deal found 3/31

$850

Mon 4/710:20 pmIAD - FAO

1 stop20h 30mMultiple Airlines

Fri 4/256:20 amFAO - IAD

2 stops39h 15mMultiple Airlines

Deal found 3/31

$772

Mon 4/711:40 amDCA - OPO

2 stops14h 55mAmerican Airlines

Mon 4/1412:20 pmOPO - DCA

2 stops15h 09mAmerican Airlines

Deal found 3/31

$779

Mon 4/710:20 pmIAD - LIS

Nonstop7h 20mMultiple Airlines

Sat 4/268:30 pmLIS - IAD

2 stops49h 05mMultiple Airlines

Deal found 3/30

$788

Mon 4/710:05 pmIAD - FAO

1 stop29h 45mScandinavian Airlines

Sat 4/2610:15 amFAO - IAD

2 stops38h 44mScandinavian Airlines

Deal found 3/31

$824

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 March 31, 2025.

Fri 9/191:51 pmBWI - LIS

2 stops23h 49mMultiple Airlines

Deal found 3/31

$316

Wed 4/97:57 pmBWI - OPO

3 stops57h 23mMultiple Airlines

Deal found 3/30

$348

Sun 5/410:20 pmIAD - OPO

2 stops19h 30mMultiple Airlines

Deal found 3/30

$368

Mon 4/288:30 pmIAD - LIS

3 stops20h 30mMultiple Airlines

Deal found 3/30

$370

Mon 6/96:00 amDCA - LIS

3 stops34h 10mMultiple Airlines

Deal found 3/30

$372

Wed 4/92:42 pmBWI - FAO

2 stops24h 33mMultiple Airlines

Deal found 3/30

$376

Sun 5/45:45 pmIAD - OPO

1 stop11h 15mTAP AIR PORTUGAL

Deal found 3/30

$390

Thu 7/36:50 pmBWI - LIS

1 stop20h 30mPLAY

Deal found 3/31

$394

Sun 5/1810:05 pmIAD - LIS

2 stops43h 00mScandinavian Airlines

Deal found 3/30

$406

Mon 6/166:59 amDCA - OPO

3 stops33h 46mMultiple Airlines

Deal found 3/30

$410

Tue 6/106:50 pmBWI - FAO

1 stop20h 55mPLAY

Deal found 3/30

$434

Wed 5/1410:20 pmIAD - LIS

Nonstop7h 20mTAP AIR PORTUGAL

Deal found 3/31

$438

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

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Sun 5/4

6:50 pm-8:40 pm

1 stop20h 50m

Lisbon Humberto Delgado

Fri 5/9

9:20 pm-5:40 pm

1 stop25h 20m

$429

BaltimoreFaro

BWI - FAO

BWIFAO

Baltimore/Washington

Tue 5/6

6:50 pm-8:45 pm

1 stop20h 55m

Faro

Sat 5/17

9:45 pm-5:40 pm

1 stop24h 55m

$454

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Sat 5/10

6:50 pm-8:05 pm

1 stop20h 15m

Porto

Thu 5/15

9:10 pm-5:40 pm

1 stop25h 30m

$475

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Tue 5/13

6:50 pm-10:30 pm

2 stops22h 40m

Lisbon Humberto Delgado

Tue 5/20

9:15 pm-5:40 pm

3 stops25h 25m

$536

BaltimorePorto

BWI - OPO

BWIOPO

Baltimore/Washington

Tue 5/6

6:50 pm-5:15 pm

2 stops17h 25m

Porto

Tue 5/13

10:20 pm-5:40 pm

2 stops24h 20m

$559

BaltimoreFaro

BWI - FAO

BWIFAO

Baltimore/Washington

Wed 4/30

6:50 pm-8:20 pm

2 stops20h 30m

Faro

Tue 5/6

7:20 pm-5:40 pm

2 stops27h 20m

$565

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Wed 9/24

9:05 pm-9:05 pm

1 stop19h 00m

Lisbon Humberto Delgado

Tue 9/30

6:40 pm-7:05 pm

1 stop29h 25m

$567

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Sun 8/17

10:05 pm-7:25 pm

1 stop16h 20m

Lisbon Humberto Delgado

Wed 8/27

7:15 am-7:59 pm

1 stop17h 44m

$604

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Thu 9/25

5:50 pm-11:00 pm

1 stop24h 10m

Porto

Sun 10/5

9:15 pm-8:50 pm

1 stop28h 35m

$619

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sun 9/14

5:20 pm-9:45 am

1 stop11h 25m

Porto

Tue 12/23

6:00 am-3:50 pm

1 stop14h 50m

$625

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

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, 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 $1,213). 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. Thursday 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 Sunday (7 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (2 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, KLM and LOT 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

7,899 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

7,899 reviews

Delta

8.0

Very good

7,899 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

1,321 reviews

Delta

8.0

Very good

7,899 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.

LOT

7.6

Good

1,065 reviews

Delta

8.0

Very good

7,899 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

1,267 reviews

Delta

8.0

Very good

7,899 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.

Austrian Airlines

7.6

Good

770 reviews

Delta

8.0

Very good

7,899 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 $390 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include PLAY from $394 and Scandinavian Airlines from $406 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.
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 $1,213). 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$328	Average$377	FlexibilityNo cancel fee	On-timeN/A
Air France	Cheapest$422	Average$940	FlexibilityNo cancel fee	On-time77%
Delta	Cheapest$423	Average$931	FlexibilityNo cancel fee	On-timeN/A
KLM	Cheapest$435	Average$903	FlexibilityNo cancel fee	On-time75%
TAP AIR PORTUGAL	Cheapest$458	Average$916	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$536	Average$844	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$538	Average$1,124	FlexibilityNo cancel fee	On-time69%
Lufthansa	Cheapest$538	Average$909	FlexibilityNo cancel fee	On-time76%
British Airways	Cheapest$551	Average$1,018	FlexibilityNo cancel fee	On-time70%
Royal Air Maroc	Cheapest$552	Average$632	FlexibilityNo cancel fee	On-time75%

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$257+ 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 8/18. 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 March 31, 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 March 31, 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 March 31, 2025.

Cheapflights Fare Finder

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

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.

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?

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 March 31, 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, KLM and LOT 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?

What are the most popular routes 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?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Washington, D.C. to Portugal

See prices for flight routes from nearby airports that may be better suited for you.

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 March 31, 2025.