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 77% 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.

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

Royal Air Maroc, Scandinavian Airlines, and Icelandair are the most popular carriers operating from Washington, D.C. to Portugal

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 22m on average, while flying from Baltimore to Lisbon is 12h 20m on average. Lisbon is the most popular airport in Portugal.

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

As of October 2025, 1 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 October 2025, 12 flights take off from Washington, D.C. and land in Portugal each week. The most common flight departure day for this route is Wed, with 42% of weekly flights taking off on this day.

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 October 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.

$307 Cheap Flights from Washington, D.C. to Portugal in 2025/26

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:40 pm - 4:55 pmBWI-LIS

16h 15m2 stops

9:05 pm - 6:40 pmLIS-BWI

26h 35m2 stops

$457Multiple Airlines

Find Deal

Fri, Nov 28 - Thu, Dec 4

8:30 pm - 11:15 amIAD-OPO

33h 45m1 stop

12:10 pm - 4:40 pmOPO-IAD

33h 30m1 stop

$462SWISS

Find Deal

Sun, Nov 23 - Wed, Dec 3

5:34 pm - 9:30 amIAD-OPO

10h 56m1 stop

6:00 am - 3:35 pmOPO-IAD

13h 35m1 stop

$474United Airlines

Find Deal

Mon, Mar 2 - Tue, Mar 10

6:50 pm - 10:30 amIAD-OPO

10h 40m1 stop

6:05 am - 5:05 pmOPO-IAD

15h 00m1 stop

$477Delta

Find Deal

Sun, Mar 1 - Tue, Mar 10

5:40 pm - 9:30 amIAD-OPO

10h 50m1 stop

6:00 am - 3:54 pmOPO-IAD

37h 54m2 stops

$480United Airlines

Find Deal

Tue, Mar 3 - Thu, Mar 12

5:25 pm - 10:30 amIAD-OPO

36h 05m2 stops

6:35 am - 5:05 pmOPO-IAD

14h 30m1 stop

$487Delta

Find Deal

Sat, Feb 28 - Thu, Mar 12

5:30 pm - 9:50 amIAD-OPO

11h 20m1 stop

9:00 am - 10:00 pmOPO-IAD

17h 00m1 stop

$497TAP AIR PORTUGAL

Find Deal

Sat, Mar 7 - Fri, Mar 13

5:30 pm - 3:00 pmIAD-OPO

16h 30m1 stop

8:00 pm - 9:00 pmOPO-IAD

30h 00m1 stop

$498TAP AIR PORTUGAL

Find Deal

Sat, Dec 6 - Sat, Dec 13

8:45 pm - 4:55 pmIAD-LIS

15h 10m1 stop

11:35 am - 6:45 pmLIS-IAD

12h 10m1 stop

$595Royal Air Maroc

Find Deal

Fri, Nov 28 - Wed, Dec 3

8:45 pm - 4:55 pmIAD-LIS

15h 10m1 stop

11:35 am - 6:45 pmLIS-IAD

12h 10m1 stop

$597Royal Air Maroc

Find Deal

Fri, Nov 28 - Wed, Dec 3

Turkish Airlines flights from Washington, D.C. to Portugal

Our best Turkish Airlines deals on Washington, D.C. to Portugal flight tickets

Turkish Airlines

Feb 12

IAD1:30 pmWashington, D.C. Dulles Intl

16h 10m

1 stop

LIS10:40 amLisbon Humberto Delgado

Feb 19

LIS5:55 amLisbon Humberto Delgado

18h 25m

1 stop

IAD7:20 pmWashington, D.C. Dulles Intl

$561

Find similar

Turkish Airlines

Oct 29

IAD10:15 pmWashington, D.C. Dulles Intl

21h 10m

1 stop

LIS11:25 pmLisbon Humberto Delgado

Nov 4

LIS4:05 pmLisbon Humberto Delgado

32h 15m

1 stop

IAD7:20 pmWashington, D.C. Dulles Intl

$580

Find similar

Turkish Airlines

Nov 2

IAD9:15 pmWashington, D.C. Dulles Intl

36h 55m

1 stop

OPO3:10 pmPorto

Nov 20

OPO10:55 amPorto

29h 50m

1 stop

IAD11:45 amWashington, D.C. Dulles Intl

$586

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Air Canada flights from Washington, D.C. to Portugal

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

Air Canada

Mar 4

IAD9:45 amWashington, D.C. Dulles Intl

22h 30m

2 stops

OPO1:15 pmPorto

Mar 11

OPO6:00 amPorto

42h 29m

2 stops

IAD8:29 pmWashington, D.C. Dulles Intl

$483

Find similar

Air Canada

Mar 2

IAD9:45 amWashington, D.C. Dulles Intl

21h 20m

2 stops

OPO12:05 pmPorto

Mar 13

OPO6:00 amPorto

43h 21m

2 stops

IAD9:21 pmWashington, D.C. Dulles Intl

$484

Find similar

Air Canada

Nov 26

DCA6:00 amWashington, D.C. Reagan-National

24h 15m

2 stops

OPO11:15 amPorto

Dec 3

OPO6:00 amPorto

18h 45m

2 stops

DCA7:45 pmWashington, D.C. Reagan-National

$485

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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

Fri 11/28

7:40 pm-4:55 pm

2 stops16h 15m

Lisbon Humberto Delgado

Thu 12/4

9:05 pm-6:40 pm

2 stops26h 35m

$457

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sun 11/23

8:30 pm-11:15 am

1 stop33h 45m

Porto

Wed 12/3

12:10 pm-4:40 pm

1 stop33h 30m

$462

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 3/2

5:34 pm-9:30 am

1 stop10h 56m

Porto

Tue 3/10

6:00 am-3:35 pm

1 stop13h 35m

$474

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sun 3/1

6:50 pm-10:30 am

1 stop10h 40m

Porto

Tue 3/10

6:05 am-5:05 pm

1 stop15h 00m

$477

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Tue 3/3

5:40 pm-9:30 am

1 stop10h 50m

Porto

Thu 3/12

6:00 am-3:54 pm

2 stops37h 54m

$480

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sat 2/28

5:25 pm-10:30 am

2 stops36h 05m

Porto

Thu 3/12

6:35 am-5:05 pm

1 stop14h 30m

$487

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sat 3/7

5:30 pm-9:50 am

1 stop11h 20m

Porto

Fri 3/13

9:00 am-10:00 pm

1 stop17h 00m

$497

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sat 12/6

5:30 pm-3:00 pm

1 stop16h 30m

Porto

Sat 12/13

8:00 pm-9:00 pm

1 stop30h 00m

$498

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Fri 11/28

8:45 pm-4:55 pm

1 stop15h 10m

Lisbon Humberto Delgado

Wed 12/3

11:35 am-6:45 pm

1 stop12h 10m

$595

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Fri 11/28

8:45 pm-4:55 pm

1 stop15h 10m

Lisbon Humberto Delgado

Wed 12/3

11:35 am-6:45 pm

1 stop12h 10m

$597

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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 $681, 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 $716.

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 $713. 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 $883.

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 $839 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 $910 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 $733 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 36% 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	$282
Fastest flight time	7h 05m
Direct flights	Every day
Airports in Portugal	1 airport

The best one-way flight to Portugal from Washington, D.C. in the past 72 hours is $282. The best round-trip flight deal from Washington, D.C. to Portugal found on momondo in the last 72 hours is $470.

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

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

There is 1 airport near Portugal: Lisbon Humberto Delgado (LIS)

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 October 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 29.43% of all bookings. The subsequent popular models are Airbus A321neo at 24.97%, Boeing 777 at 11.41%, and Boeing 767-300 at 10.58%.

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 $338	Free Cancellation	Rating 7.0 103 reviews	Search PLAY flights
United Airlines	PriceFrom $493	Free Cancellation	Rating 7.4 8,992 reviews	Search United Airlines flights
Delta	PriceFrom $496	Free Cancellation	Rating 7.9 7,981 reviews	Search Delta flights
Scandinavian Airlines	PriceFrom $504	Free Cancellation	Rating 7.4 1,535 reviews	Search Scandinavian Airlines flights
TAP AIR PORTUGAL	PriceFrom $506	Free Cancellation	Rating 7.1 2,030 reviews	Search TAP AIR PORTUGAL flights
American Airlines	PriceFrom $508	Free Cancellation	Rating 7.2 11,031 reviews	Search American Airlines flights
British Airways	PriceFrom $510	Free Cancellation	Rating 6.7 7,468 reviews	Search British Airways flights
Iberia	PriceFrom $515	Free Cancellation	Rating 7.0 2,997 reviews	Search Iberia flights
Royal Air Maroc	PriceFrom $552	Free Cancellation	Rating 6.2 523 reviews	Search Royal Air Maroc flights
KLM	PriceFrom $555	Free Cancellation	Rating 7.7 1,405 reviews	Search KLM 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

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Find better results for your trip to Portugal

Popular cities in Portugal

Flights to Lisbonfrom $371

Flights to Portofrom $347

Flights to Funchalfrom $405

Flights to Farofrom $407

Flights to Ponta Delgadafrom $403

Flights to Lajesfrom $482

Flights to Hortafrom $591

Flights to Pico Islandfrom $556

Flights to Porto Santofrom $424

Flights to Velasfrom $571

Washington, D.C. flight routes

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Flights from Baltimore/Washington to Atlanta Hartsfield-Jackson

Flights from Baltimore/Washington to Detroit Metropolitan Wayne County

Flights from Baltimore/Washington to Tampa

Cheap flights from Washington, D.C. to Portugal from $307

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 11/26. 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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Turkish Airlines flights from Washington, D.C. to Portugal

Our best Turkish Airlines deals on Washington, D.C. to Portugal flight tickets

Air Canada flights from Washington, D.C. to Portugal

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

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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 $839 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 36% 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?

Royal Air Maroc, Scandinavian Airlines, and Icelandair 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 October 2025, 1 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 October 2025, 12 flights take off from Washington, D.C. and land in Portugal each week. The most common flight departure day for this route is Wed, with 42% 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 22m on average, while flying from Baltimore to Lisbon is 12h 20m 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