Cheap flights from District of Columbia to Portugal from $257

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to Portugal departing on 4/19. 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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0 bags

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Cheap round-trip flights

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Scandinavian Airlines Logo
8:20 pm - 9:40 am
IAD
-
FAO
32h 20m
1 stop
Scandinavian Airlines Logo
6:45 pm - 5:00 pm
FAO
-
IAD
27h 15m
1 stop
$497Scandinavian Airlines
Sun, Apr 5 - Sat, Apr 18
Scandinavian Airlines Logo
8:20 pm - 9:40 am
IAD
-
FAO
32h 20m
1 stop
Scandinavian Airlines Logo
6:45 pm - 5:00 pm
FAO
-
IAD
27h 15m
1 stop
$504Scandinavian Airlines
Sun, Apr 5 - Sat, Apr 18
Multiple Airlines Logo
5:00 pm - 8:50 am
IAD
-
OPO
10h 50m
1 stop
Multiple Airlines Logo
7:10 am - 3:30 pm
OPO
-
IAD
13h 20m
1 stop
$509Multiple Airlines
Sun, Apr 12 - Wed, Apr 29
TAP AIR PORTUGAL Logo
6:30 pm - 5:00 pm
IAD
-
OPO
18h 30m
1 stop
TAP AIR PORTUGAL Logo
10:30 pm - 8:35 pm
OPO
-
IAD
27h 05m
1 stop
$514TAP AIR PORTUGAL
Mon, Mar 16 - Tue, Apr 14
TAP AIR PORTUGAL Logo
10:35 pm - 11:10 pm
IAD
-
OPO
19h 35m
1 stop
TAP AIR PORTUGAL Logo
10:00 am - 8:35 pm
OPO
-
IAD
15h 35m
1 stop
$519TAP AIR PORTUGAL
Wed, Apr 15 - Wed, May 6
Multiple Airlines Logo
8:20 pm - 8:25 pm
IAD
-
LIS
19h 05m
1 stop
Multiple Airlines Logo
7:15 am - 4:50 pm
LIS
-
IAD
14h 35m
1 stop
$538Multiple Airlines
Thu, Apr 9 - Sun, Apr 19
KLM Logo
6:05 pm - 8:25 am
IAD
-
FAO
33h 20m
1 stop
KLM Logo
7:45 pm - 4:05 pm
FAO
-
IAD
25h 20m
1 stop
$585KLM
Thu, Feb 26 - Tue, Mar 3
Delta Logo
6:30 pm - 3:25 pm
DCA
-
OPO
15h 55m
2 stops
Delta Logo
5:00 am - 4:36 pm
OPO
-
DCA
16h 36m
2 stops
$588Delta
Tue, Apr 7 - Wed, Apr 15
KLM Logo
6:05 pm - 8:25 am
IAD
-
FAO
33h 20m
1 stop
KLM Logo
7:45 pm - 4:28 pm
FAO
-
IAD
25h 43m
2 stops
$595KLM
Thu, Feb 26 - Tue, Mar 3
Delta Logo
5:00 pm - 3:25 pm
DCA
-
OPO
17h 25m
2 stops
Delta Logo
5:00 am - 4:59 pm
OPO
-
DCA
16h 59m
2 stops
$618Delta
Mon, Apr 27 - Tue, May 12

Turkish Airlines flights from District of Columbia to Portugal

Our best Turkish Airlines deals on District of Columbia to Portugal flight tickets
Turkish Airlines
Feb 24
IAD9:15 pmWashington, D.C. Dulles Intl
36h 55m
1 stop
OPO3:10 pmPorto
Mar 3
OPO10:50 amPorto
29h 55m
1 stop
IAD11:45 amWashington, D.C. Dulles Intl
$579
Turkish Airlines
Mar 11
IAD10:15 pmWashington, D.C. Dulles Intl
31h 40m
1 stop
OPO9:55 amPorto
Mar 23
OPO10:55 amPorto
37h 25m
1 stop
IAD8:20 pmWashington, D.C. Dulles Intl
$589
Turkish Airlines
Apr 22
IAD1:20 pmWashington, D.C. Dulles Intl
21h 15m
1 stop
LIS3:35 pmLisbon Humberto Delgado
Apr 29
LIS10:55 amLisbon Humberto Delgado
29h 40m
1 stop
IAD11:35 amWashington, D.C. Dulles Intl
$591

TAP AIR PORTUGAL flights from District of Columbia to Portugal

Our best TAP AIR PORTUGAL deals on District of Columbia to Portugal flight tickets
TAP AIR PORTUGAL
Mar 16
IAD6:30 pmWashington, D.C. Dulles Intl
11h 30m
1 stop
OPO10:00 amPorto
Apr 10
OPO5:05 amPorto
15h 05m
1 stop
IAD3:10 pmWashington, D.C. Dulles Intl
$514
TAP AIR PORTUGAL
Apr 15
IAD10:35 pmWashington, D.C. Dulles Intl
21h 05m
1 stop
OPO12:40 amPorto
May 6
OPO11:00 amPorto
14h 35m
1 stop
IAD8:35 pmWashington, D.C. Dulles Intl
$518
TAP AIR PORTUGAL
Apr 15
IAD10:35 pmWashington, D.C. Dulles Intl
19h 35m
1 stop
OPO11:10 pmPorto
May 6
OPO10:00 amPorto
15h 35m
1 stop
IAD8:35 pmWashington, D.C. Dulles Intl
$519

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia to Portugal that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 18, 2026.
Use the filters below to find and compare flights from District of Columbia to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Sun 4/5

8:20 pm-9:40 am

1 stop32h 20m

Faro

Sat 4/18

6:45 pm-5:00 pm

1 stop27h 15m

$497

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Sun 4/5

8:20 pm-9:40 am

1 stop32h 20m

Faro

Sat 4/18

6:45 pm-5:00 pm

1 stop27h 15m

$504

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Sun 4/12

5:00 pm-8:50 am

1 stop10h 50m

Porto

Wed 4/29

7:10 am-3:30 pm

1 stop13h 20m

$509

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Mon 3/16

6:30 pm-5:00 pm

1 stop18h 30m

Porto

Tue 4/14

10:30 pm-8:35 pm

1 stop27h 05m

$514

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

Wed 4/15

10:35 pm-11:10 pm

1 stop19h 35m

Porto

Wed 5/6

10:00 am-8:35 pm

1 stop15h 35m

$519

Washington, D.C.Lisbon

IAD - LIS

IADLIS

Washington, D.C. Dulles Intl

Thu 4/9

8:20 pm-8:25 pm

1 stop19h 05m

Lisbon Humberto Delgado

Sun 4/19

7:15 am-4:50 pm

1 stop14h 35m

$538

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Thu 2/26

6:05 pm-8:25 am

1 stop33h 20m

Faro

Tue 3/3

7:45 pm-4:05 pm

1 stop25h 20m

$585

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Tue 4/7

6:30 pm-3:25 pm

2 stops15h 55m

Porto

Wed 4/15

5:00 am-4:36 pm

2 stops16h 36m

$588

Washington, D.C.Faro

IAD - FAO

IADFAO

Washington, D.C. Dulles Intl

Thu 2/26

6:05 pm-8:25 am

1 stop33h 20m

Faro

Tue 3/3

7:45 pm-4:28 pm

2 stops25h 43m

$595

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Mon 4/27

5:00 pm-3:25 pm

2 stops17h 25m

Porto

Tue 5/12

5:00 am-4:59 pm

2 stops16h 59m

$618

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portugal from

How to get the cheapest flight ticket from District of Columbia 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?

The cheapest month to fly to Portugal from District of Columbia is in January. Flight prices, which tend to average around $682, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Portugal from District of Columbia during February instead. Flights to Portugal in February, while not as cheap as those in January, still average around $690.

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 District of Columbia. The lowest ticket price found for a Monday departure recently was $693. 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 $856.

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 in the afternoon. Flights from District of Columbia to Portugal during this time can be as low as $736. In the evening is when there is more demand to fly to Portugal, so prices are often more expensive at around $812 per ticket.

What is the cheapest District of Columbia to Portugal flight route?

Fly from Washington, D.C. Dulles Intl to Lisbon Humberto Delgado for the best District of Columbia - 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 District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $913 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from District of Columbia for as low as $761 on momondo.

What cabin class options are available on District of Columbia to Portugal flights?

There are 3 cabin classes available to choose from on District of Columbia 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 District of Columbia to Portugal flights?

You could potentially save up to 27% on your flight if you consider stops on a District of Columbia to Portugal flight.

Cheap District of Columbia to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Portugal

Best Price Found

$396

Fastest flight time

7h 05m

Direct flights

Every day

Airports in Portugal

99 airports
The best one-way flight to Portugal from District of Columbia in the past 72 hours is $396. The best round-trip flight deal from District of Columbia to Portugal found on momondo in the last 72 hours is $580.
The fastest flight from District of Columbia to Portugal takes 7h 05m
Direct flights go from District of Columbia to Portugal every day.
There are 99 airports in Portugal. From District of Columbia there are direct flights to Lisbon Humberto Delgado (LIS).
  • When did momondo last update prices for flights from District of Columbia to Portugal?

    Prices for flights from District of Columbia to Portugal are updated daily.

  • How many operators does momondo search for flights from District of Columbia to Portugal?

  • How old do you have to be to fly from District of Columbia to Portugal?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Portugal.

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

    The travel and health documents you'll need for your trip to Portugal may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portugal. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from District of Columbia to Portugal?

Best airlines flying from District of Columbia to Portugal

Compare and see reviews for airlines that fly from District of Columbia to Portugal with momondo
Airline
Rating
Free Cancellation
Price
PLAYPriceFrom $344Free CancellationRating
7.0
103 reviews
Search PLAY flights
TAP AIR PORTUGALPriceFrom $425Free CancellationRating
7.1
2,144 reviews
Search TAP AIR PORTUGAL flights
DeltaPriceFrom $439Free CancellationRating
7.9
8,212 reviews
Search Delta flights
SWISSPriceFrom $444Free CancellationRating
7.5
1,878 reviews
Search SWISS flights
KLMPriceFrom $477Free CancellationRating
7.7
1,459 reviews
Search KLM flights
British AirwaysPriceFrom $480Free CancellationRating
6.7
7,752 reviews
Search British Airways flights
Scandinavian AirlinesPriceFrom $481Free CancellationRating
7.3
1,691 reviews
Search Scandinavian Airlines flights
United AirlinesPriceFrom $494Free CancellationRating
7.4
9,322 reviews
Search United Airlines flights
American AirlinesPriceFrom $508Free CancellationRating
7.2
11,313 reviews
Search American Airlines flights
IberiaPriceFrom $515Free CancellationRating
7.0
3,117 reviews
Search Iberia flights

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Portugal?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Portugal from District of Columbia.

Can I find flights from District of Columbia to Portugal with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Portugal from District of Columbia with this policy.

How can momondo help me find flights from District of Columbia to Portugal?

Once you have performed a search for District of Columbia 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 District of Columbia to Portugal right now. Can momondo alert me if prices change?

Price alerts on flights to Portugal from District of Columbia 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.

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1 adult
Fri 3/20
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