What is the cheapest airline that flies from Washington, D.C. to Portugal?

TAP AIR PORTUGAL and PLAY are the most popular carriers operating from Washington, D.C. to Portugal

How many flights depart from Washington, D.C. to Portugal on average per day?

As of August 2025, 6 flights take off from Washington, D.C. and land in Portugal each day. The most common flight departure time for this route is 10:00PM, with 77% of daily flights taking off in the evening.

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

Average flight duration from Washington, D.C. to Portugal depends on which airport you fly into and out of. Flying from Washington, D.C. to Lisbon is 8h 36m on average, while flying from Baltimore to Lisbon is 12h 25m on average. Lisbon is the most popular airport in Portugal.

How many flights depart from Washington, D.C. to Portugal on average per week?

As of August 2025, 45 flights take off from Washington, D.C. and land in Portugal each week. The most common flight departure day for this route is Mon, with 16% of weekly flights taking off on this day.

What airlines fly to Portugal?

TAP AIR PORTUGAL, United Airlines and Delta are the top three most popular airlines that fly to Portugal from Washington, D.C. according to our data. TAP AIR PORTUGAL is the first choice among our users, with 76% of people opting to fly with this airline when traveling to Portugal. Keep in mind that there are 14 different airlines that fly to Portugal on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Washington, D.C. to Portugal?

Prices for flights from Washington, D.C. to Portugal are refreshed on a daily basis.

How many operators does momondo search for flights from Washington, D.C. to Portugal?

The number of operators available for flights from Washington, D.C. to Portugal is 14 as of August 2025.

How old do you have to be to fly from Washington, D.C. to Portugal?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Portugal.

What documentation or ID do you need to fly to Portugal?

The travel and health documents required for your trip to Portugal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$241 Cheap Flights from Washington, D.C. to Portugal in 2025

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Find the cheapest flights from Washington, D.C. to Portugal

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

6:50 pm - 8:20 pmBWI-LIS

20h 30m1 stop

9:20 pm - 5:40 pmLIS-BWI

25h 20m1 stop

$380PLAY

Find Deal

Sun, Oct 12 - Fri, Oct 17

6:50 pm - 8:20 pmBWI-LIS

20h 30m1 stop

9:20 pm - 5:40 pmLIS-BWI

25h 20m1 stop

$381PLAY

Find Deal

Thu, Sep 18 - Fri, Sep 26

5:50 pm - 11:50 pmIAD-FAO

25h 00m1 stop

6:10 pm - 3:20 pmFAO-IAD

26h 10m1 stop

$545TAP AIR PORTUGAL

Find Deal

Wed, Oct 1 - Wed, Oct 8

5:00 pm - 10:25 amIAD-FAO

12h 25m1 stop

6:05 am - 3:20 pmFAO-IAD

14h 15m1 stop

$546TAP AIR PORTUGAL

Find Deal

Tue, Oct 7 - Wed, Oct 15

11:00 pm - 2:45 pmIAD-OPO

11h 45m1 stop

12:30 pm - 3:50 pmOPO-IAD

32h 20m1 stop

$572United Airlines

Find Deal

Thu, Oct 30 - Mon, Nov 10

6:30 am - 2:45 pmIAD-OPO

28h 15m2 stops

12:30 pm - 3:50 pmOPO-IAD

32h 20m1 stop

$576United Airlines

Find Deal

Thu, Oct 30 - Mon, Nov 10

9:05 pm - 5:40 pmIAD-LIS

15h 35m1 stop

6:40 pm - 7:05 pmLIS-IAD

29h 25m1 stop

$633Royal Air Maroc

Find Deal

Fri, Oct 10 - Sun, Oct 19

10:25 pm - 10:30 amIAD-OPO

32h 05m1 stop

11:25 am - 11:50 amOPO-IAD

29h 25m2 stops

$634Delta

Find Deal

Wed, Oct 29 - Tue, Nov 11

6:50 pm - 10:30 amIAD-OPO

10h 40m1 stop

11:25 am - 4:35 pmOPO-IAD

34h 10m1 stop

$635Delta

Find Deal

Sun, Nov 16 - Tue, Nov 25

9:05 pm - 5:40 pmIAD-LIS

15h 35m1 stop

6:40 pm - 7:45 pmLIS-IAD

30h 05m1 stop

$636Royal Air Maroc

Find Deal

Fri, Oct 17 - Sat, Oct 25

Royal Air Maroc flights from Washington, D.C. to Portugal

Our best Royal Air Maroc deals on Washington, D.C. to Portugal flight tickets

Royal Air Maroc

Oct 10

IAD9:05 pmWashington, D.C. Dulles Intl

15h 35m

1 stop

LIS5:40 pmLisbon Humberto Delgado

Oct 19

LIS6:40 pmLisbon Humberto Delgado

29h 25m

1 stop

IAD7:05 pmWashington, D.C. Dulles Intl

$633

Find similar

Royal Air Maroc

Oct 17

IAD9:05 pmWashington, D.C. Dulles Intl

15h 35m

1 stop

LIS5:40 pmLisbon Humberto Delgado

Oct 25

LIS6:40 pmLisbon Humberto Delgado

30h 05m

1 stop

IAD7:45 pmWashington, D.C. Dulles Intl

$636

Find similar

Royal Air Maroc

Sep 21

IAD9:05 pmWashington, D.C. Dulles Intl

10h 10m

1 stop

LIS12:15 pmLisbon Humberto Delgado

Oct 4

LIS6:40 pmLisbon Humberto Delgado

29h 25m

1 stop

IAD7:05 pmWashington, D.C. Dulles Intl

$645

Find similar

TAP AIR PORTUGAL flights from Washington, D.C. to Portugal

Our best TAP AIR PORTUGAL deals on Washington, D.C. to Portugal flight tickets

TAP AIR PORTUGAL

Oct 1

IAD5:50 pmWashington, D.C. Dulles Intl

25h 00m

1 stop

FAO11:50 pmFaro

Oct 8

FAO6:10 pmFaro

26h 10m

1 stop

IAD3:20 pmWashington, D.C. Dulles Intl

$545

Find similar

TAP AIR PORTUGAL

Oct 7

IAD5:00 pmWashington, D.C. Dulles Intl

12h 25m

1 stop

FAO10:25 amFaro

Oct 15

FAO6:05 amFaro

14h 15m

1 stop

IAD3:20 pmWashington, D.C. Dulles Intl

$546

Find similar

TAP AIR PORTUGAL

Sep 16

IAD10:20 pmWashington, D.C. Dulles Intl

14h 00m

1 stop

FAO5:20 pmFaro

Sep 30

FAO6:05 amFaro

19h 45m

1 stop

IAD8:50 pmWashington, D.C. Dulles Intl

$547

Find similar

momondo 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 10/12

6:50 pm-8:20 pm

1 stop20h 30m

Lisbon Humberto Delgado

Fri 10/17

9:20 pm-5:40 pm

1 stop25h 20m

$380

BaltimoreLisbon

BWI - LIS

BWILIS

Baltimore/Washington

Thu 9/18

6:50 pm-8:20 pm

1 stop20h 30m

Lisbon Humberto Delgado

Fri 9/26

9:20 pm-5:40 pm

1 stop25h 20m

$381

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Wed 10/1

5:50 pm-11:50 pm

1 stop25h 00m

Faro

Wed 10/8

6:10 pm-3:20 pm

1 stop26h 10m

$545

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Tue 10/7

5:00 pm-10:25 am

1 stop12h 25m

Faro

Wed 10/15

6:05 am-3:20 pm

1 stop14h 15m

$546

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Thu 10/30

11:00 pm-2:45 pm

1 stop11h 45m

Porto

Mon 11/10

12:30 pm-3:50 pm

1 stop32h 20m

$572

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Thu 10/30

6:30 am-2:45 pm

2 stops28h 15m

Porto

Mon 11/10

12:30 pm-3:50 pm

1 stop32h 20m

$576

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Fri 10/10

9:05 pm-5:40 pm

1 stop15h 35m

Lisbon Humberto Delgado

Sun 10/19

6:40 pm-7:05 pm

1 stop29h 25m

$633

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 10/29

10:25 pm-10:30 am

1 stop32h 05m

Porto

Tue 11/11

11:25 am-11:50 am

2 stops29h 25m

$634

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sun 11/16

6:50 pm-10:30 am

1 stop10h 40m

Porto

Tue 11/25

11:25 am-4:35 pm

1 stop34h 10m

$635

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Fri 10/17

9:05 pm-5:40 pm

1 stop15h 35m

Lisbon Humberto Delgado

Sat 10/25

6:40 pm-7:45 pm

1 stop30h 05m

$636

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. to Portugal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Portugal?

The cheapest month to fly to Portugal from Washington, D.C. is in February. Flight prices, which tend to average around $668, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Portugal from Washington, D.C. during January instead. Flights to Portugal in January, while not as cheap as those in February, still average around $702.

What is the cheapest day to depart on your flight to Portugal?

According to our data, Monday is the cheapest day to fly to Portugal from Washington, D.C.. The lowest ticket price found for a Monday departure recently was $739. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Friday, with ticket prices averaging around $909.

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is at noon. Flights from Washington, D.C. to Portugal during this time can be as low as $661. In the evening is when there is more demand to fly to Portugal, so prices are often more expensive at around $847 per ticket.

What is the cheapest Washington, D.C. to Portugal flight route?

Fly from Washington, D.C. Dulles Intl to Lisbon Humberto Delgado for the best Washington, D.C. - Portugal flight prices

How far in advance should I book a flight to Portugal?

You are more likely to see cheaper flights to Portugal from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $900 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Washington, D.C. for as low as $746 on momondo.

What cabin class options are available on Washington, D.C. to Portugal flights?

There are 3 cabin classes available to choose from on Washington, D.C. to Portugal flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. to Portugal flights?

You could potentially save up to 11% on your flight if you consider stops on a Washington, D.C. to Portugal flight.

Cheap Washington, D.C. to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Portugal

Best Price Found	$241
Fastest flight time	7h 05m
Direct flights	Every day
Airports in Portugal	5 airports

The best one-way flight to Portugal from Washington, D.C. in the past 72 hours is $241. The best round-trip flight deal from Washington, D.C. to Portugal found on momondo in the last 72 hours is $380.

The fastest flight from Washington, D.C. to Portugal takes 7h 05m

Direct flights go from Washington, D.C. to Portugal every day.

There are 5 airports near Portugal: Faro (FAO), Lisbon Humberto Delgado (LIS), Ponta Delgada Nordela (PDL), Funchal Madeira (FNC), Porto (OPO)

Search flight deals

When did momondo last update prices for flights from Washington, D.C. to Portugal?
Prices for flights from Washington, D.C. to Portugal are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. to Portugal?
The number of operators available for flights from Washington, D.C. to Portugal is 14 as of August 2025.
How old do you have to be to fly from Washington, D.C. to Portugal?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Portugal.
What documentation or ID do you need to fly to Portugal?
The travel and health documents required for your trip to Portugal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Washington, D.C. to Portugal?
momondo data reveals that the most frequently booked plane model on the route from Washington, D.C. to Portugal is Boeing 767-400, representing 36.34% of all bookings. The subsequent popular models are Airbus A321neo at 30.68%, Boeing 767-300 at 11.83%, and Boeing 777 at 5.53%.

Best airlines flying from Washington, D.C. to Portugal

Compare and see reviews for airlines that fly from Washington, D.C. to Portugal with momondo

Airline	Rating	Free Cancellation	Price
PLAY	PriceFrom $333	Free Cancellation	Rating 7.0 103 reviews	Search PLAY flights
Delta	PriceFrom $418	Free Cancellation	Rating 8.0 7,981 reviews	Search Delta flights
KLM	PriceFrom $424	Free Cancellation	Rating 7.8 1,385 reviews	Search KLM flights
TAP AIR PORTUGAL	PriceFrom $468	Free Cancellation	Rating 7.1 1,954 reviews	Search TAP AIR PORTUGAL flights
British Airways	PriceFrom $480	Free Cancellation	Rating 6.6 7,277 reviews	Search British Airways flights
American Airlines	PriceFrom $508	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Iberia	PriceFrom $515	Free Cancellation	Rating 7.0 2,884 reviews	Search Iberia flights
United Airlines	PriceFrom $520	Free Cancellation	Rating 7.4 8,925 reviews	Search United Airlines flights
Royal Air Maroc	PriceFrom $552	Free Cancellation	Rating 6.1 500 reviews	Search Royal Air Maroc flights
Air France	PriceFrom $554	Free Cancellation	Rating 7.4 1,468 reviews	Search Air France flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Portugal?

It is quick and easy to find Washington, D.C. to Portugal flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Portugal that suits you.

Can I find flights from Washington, D.C. to Portugal with flexible booking policies on momondo?

momondo does allow users to show only those flights to Portugal from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington, D.C. to Portugal?

Once you have performed a search for Washington, D.C. to Portugal flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Washington, D.C. to Portugal right now. Can momondo alert me if prices change?

Price alerts on flights to Portugal from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Portugal trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Portugal

Popular cities in Portugal

Flights to Lisbonfrom $356

Flights to Portofrom $340

Flights to Funchalfrom $383

Flights to Farofrom $377

Flights to Ponta Delgadafrom $450

Flights to Lajesfrom $522

Flights to Hortafrom $589

Flights to Pico Islandfrom $559

Flights to Porto Santofrom $580

Flights to Velasfrom $591

Washington, D.C. flight routes

Washington, D.C. Dulles Intl to Valparaiso Destin-Ft Walton Beach

Washington, D.C. Dulles Intl to Savannah/Hilton Head

Baltimore/Washington to Detroit Metropolitan Wayne County

Washington, D.C. Dulles Intl to Nashville Intl

Washington, D.C. Dulles Intl to South Bend/Michiana

Washington, D.C. Reagan-National to New York John F Kennedy Intl

Cheap flights from Washington, D.C. to Portugal from $241

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Portugal departing on 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

Filter for what you want

Filter for what you want

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Find the cheapest flights from Washington, D.C. to Portugal

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

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Royal Air Maroc flights from Washington, D.C. to Portugal

Our best Royal Air Maroc deals on Washington, D.C. to Portugal flight tickets

TAP AIR PORTUGAL flights from Washington, D.C. to Portugal

Our best TAP AIR PORTUGAL deals on Washington, D.C. to Portugal flight tickets

momondo Fare Finder

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

See travel insights to Portugal from

How to get the cheapest flight ticket from Washington, D.C. to Portugal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Portugal?

What is the cheapest day to depart on your flight to Portugal?

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is at noon. Flights from Washington, D.C. to Portugal during this time can be as low as $661. In the evening is when there is more demand to fly to Portugal, so prices are often more expensive at around $847 per ticket.

What is the cheapest Washington, D.C. to Portugal flight route?

Fly from Washington, D.C. Dulles Intl to Lisbon Humberto Delgado for the best Washington, D.C. - Portugal flight prices

How far in advance should I book a flight to Portugal?

What cabin class options are available on Washington, D.C. to Portugal flights?

There are 3 cabin classes available to choose from on Washington, D.C. to Portugal flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. to Portugal flights?

You could potentially save up to 11% on your flight if you consider stops on a Washington, D.C. to Portugal flight.

What is the cheapest airline that flies from Washington, D.C. to Portugal?

TAP AIR PORTUGAL and PLAY are the most popular carriers operating from Washington, D.C. to Portugal

What airlines fly to Portugal?

How many flights depart from Washington, D.C. to Portugal on average per day?

As of August 2025, 6 flights take off from Washington, D.C. and land in Portugal each day. The most common flight departure time for this route is 10:00PM, with 77% of daily flights taking off in the evening.

How many flights depart from Washington, D.C. to Portugal on average per week?

As of August 2025, 45 flights take off from Washington, D.C. and land in Portugal each week. The most common flight departure day for this route is Mon, with 16% of weekly flights taking off on this day.

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

Average flight duration from Washington, D.C. to Portugal depends on which airport you fly into and out of. Flying from Washington, D.C. to Lisbon is 8h 36m on average, while flying from Baltimore to Lisbon is 12h 25m on average. Lisbon is the most popular airport in Portugal.

Cheap Washington, D.C. to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Portugal

Best Price Found

Fastest flight time

Direct flights

Airports in Portugal

When did momondo last update prices for flights from Washington, D.C. to Portugal?

How many operators does momondo search for flights from Washington, D.C. to Portugal?

How old do you have to be to fly from Washington, D.C. to Portugal?

What documentation or ID do you need to fly to Portugal?

What is the most popular plane model from Washington, D.C. to Portugal?

Best airlines flying from Washington, D.C. to Portugal

Compare and see reviews for airlines that fly from Washington, D.C. to Portugal with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Portugal?

Can I find flights from Washington, D.C. to Portugal with flexible booking policies on momondo?

How can momondo help me find flights from Washington, D.C. to Portugal?

I’m not ready to book a flight from Washington, D.C. to Portugal right now. Can momondo alert me if prices change?

An easier way to manage your Portugal trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo