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Cheap flights from District of Columbia to Portugal from $219

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 10/15. 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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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
5:33 pm - 9:30 amIAD-OPO
10h 57m1 stop
United Airlines Logo
12:30 pm - 9:21 pmOPO-IAD
37h 51m2 stops
$504United Airlines
Find Deal
mié., nov. 26 - lun., dic. 1
United Airlines Logo
10:05 am - 9:30 amDCA-OPO
18h 25m1 stop
United Airlines Logo
12:35 pm - 7:35 pmOPO-DCA
12h 00m1 stop
$505United Airlines
Find Deal
jue., nov. 13 - jue., nov. 20
TAP AIR PORTUGAL Logo
10:30 pm - 3:20 pmIAD-OPO
11h 50m1 stop
TAP AIR PORTUGAL Logo
8:30 am - 3:15 pmOPO-IAD
11h 45m1 stop
$506TAP AIR PORTUGAL
Find Deal
dom., feb. 22 - lun., mar. 2
TAP AIR PORTUGAL Logo
5:30 pm - 11:00 amIAD-OPO
12h 30m1 stop
TAP AIR PORTUGAL Logo
2:20 pm - 9:00 pmOPO-IAD
11h 40m1 stop
$509TAP AIR PORTUGAL
Find Deal
mar., feb. 17 - vie., feb. 27
Lufthansa Logo
6:00 pm - 11:40 amIAD-OPO
12h 40m1 stop
Lufthansa Logo
6:00 am - 3:50 pmOPO-IAD
14h 50m1 stop
$514Lufthansa
Find Deal
mié., nov. 19 - dom., nov. 23
Lufthansa Logo
6:00 pm - 11:40 amIAD-OPO
12h 40m1 stop
Lufthansa Logo
6:00 am - 3:50 pmOPO-IAD
14h 50m1 stop
$515Lufthansa
Find Deal
lun., nov. 3 - lun., nov. 10
Multiple Airlines Logo
9:45 am - 12:50 pmIAD-OPO
22h 05m2 stops
Multiple Airlines Logo
6:00 am - 3:50 pmOPO-IAD
14h 50m1 stop
$526Multiple Airlines
Find Deal
dom., nov. 9 - dom., nov. 23
Delta Logo
9:20 pm - 3:30 pmIAD-OPO
13h 10m1 stop
Delta Logo
11:15 am - 5:05 pmOPO-IAD
33h 50m1 stop
$527Delta
Find Deal
mié., oct. 22 - sáb., nov. 1
Multiple Airlines Logo
6:30 pm - 3:30 pmIAD-OPO
16h 00m1 stop
Multiple Airlines Logo
4:10 pm - 5:05 pmOPO-IAD
28h 55m1 stop
$528Multiple Airlines
Find Deal
mié., oct. 22 - vie., oct. 31
Delta Logo
11:05 am - 10:30 amIAD-OPO
18h 25m2 stops
Delta Logo
5:00 am - 4:05 pmOPO-IAD
16h 05m1 stop
$532Delta
Find Deal
mié., nov. 12 - dom., nov. 16

Scandinavian Airlines flights from District of Columbia to Portugal

Our best Scandinavian Airlines deals on District of Columbia to Portugal flight tickets
Scandinavian Airlines
Dec 6
IAD8:30 pmWashington, D.C. Dulles Intl
14h 35m
1 stop
LIS4:05 pmLisbon Humberto Delgado
Dec 17
LIS4:55 pmLisbon Humberto Delgado
31h 24m
2 stops
IAD7:19 pmWashington, D.C. Dulles Intl
$589
Find similar
Scandinavian Airlines
Jan 11
IAD12:30 pmWashington, D.C. Dulles Intl
22h 10m
2 stops
LIS3:40 pmLisbon Humberto Delgado
Jan 15
LIS6:55 pmLisbon Humberto Delgado
29h 17m
2 stops
IAD7:12 pmWashington, D.C. Dulles Intl
$594
Find similar
Scandinavian Airlines
Feb 14
IAD8:30 pmWashington, D.C. Dulles Intl
14h 35m
1 stop
LIS4:05 pmLisbon Humberto Delgado
Feb 21
LIS7:05 amLisbon Humberto Delgado
16h 45m
1 stop
IAD6:50 pmWashington, D.C. Dulles Intl
$598
Find similar

Royal Air Maroc flights from District of Columbia to Portugal

Our best Royal Air Maroc deals on District of Columbia to Portugal flight tickets
Royal Air Maroc
Feb 20
IAD8:45 pmWashington, D.C. Dulles Intl
15h 10m
1 stop
LIS4:55 pmLisbon Humberto Delgado
Feb 28
LIS5:55 pmLisbon Humberto Delgado
29h 50m
1 stop
IAD6:45 pmWashington, D.C. Dulles Intl
$590
Find similar
Royal Air Maroc
Jan 11
IAD8:45 pmWashington, D.C. Dulles Intl
15h 10m
1 stop
LIS4:55 pmLisbon Humberto Delgado
Jan 22
LIS5:55 pmLisbon Humberto Delgado
29h 50m
1 stop
IAD6:45 pmWashington, D.C. Dulles Intl
$591
Find similar
Royal Air Maroc
Oct 13
IAD9:05 pmWashington, D.C. Dulles Intl
15h 35m
1 stop
LIS5:40 pmLisbon Humberto Delgado
Oct 29
LIS11:35 amLisbon Humberto Delgado
12h 10m
1 stop
IAD7:45 pmWashington, D.C. Dulles Intl
$616
Find similar

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 octubre 1, 2025.
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.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

mié. 11/26

5:33 pm-9:30 am

1 stop10h 57m

Porto

lun. 12/1

12:30 pm-9:21 pm

2 stops37h 51m

$504

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

jue. 11/13

10:05 am-9:30 am

1 stop18h 25m

Porto

jue. 11/20

12:35 pm-7:35 pm

1 stop12h 00m

$505

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

dom. 2/22

10:30 pm-3:20 pm

1 stop11h 50m

Porto

lun. 3/2

8:30 am-3:15 pm

1 stop11h 45m

$506

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

mar. 2/17

5:30 pm-11:00 am

1 stop12h 30m

Porto

vie. 2/27

2:20 pm-9:00 pm

1 stop11h 40m

$509

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

mié. 11/19

6:00 pm-11:40 am

1 stop12h 40m

Porto

dom. 11/23

6:00 am-3:50 pm

1 stop14h 50m

$514

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

lun. 11/3

6:00 pm-11:40 am

1 stop12h 40m

Porto

lun. 11/10

6:00 am-3:50 pm

1 stop14h 50m

$515

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

dom. 11/9

9:45 am-12:50 pm

2 stops22h 05m

Porto

dom. 11/23

6:00 am-3:50 pm

1 stop14h 50m

$526

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

mié. 10/22

9:20 pm-3:30 pm

1 stop13h 10m

Porto

sáb. 11/1

11:15 am-5:05 pm

1 stop33h 50m

$527

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

mié. 10/22

6:30 pm-3:30 pm

1 stop16h 00m

Porto

vie. 10/31

4:10 pm-5:05 pm

1 stop28h 55m

$528

Washington, D.C.Porto

IAD - OPO

IADOPO

Washington, D.C. Dulles Intl

mié. 11/12

11:05 am-10:30 am

2 stops18h 25m

Porto

dom. 11/16

5:00 am-4:05 pm

1 stop16h 05m

$532

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 February. Flight prices, which tend to average around $666, 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 District of Columbia during January instead. Flights to Portugal in January, while not as cheap as those in February, still average around $706.

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 $733. 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 $894.

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 District of Columbia 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 $841 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 $907 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 $750 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 24% 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

$295

Fastest flight time

7h 05m

Direct flights

Every day

Airports in Portugal

1 airport
The best one-way flight to Portugal from District of Columbia in the past 72 hours is $295. The best round-trip flight deal from District of Columbia to Portugal found on momondo in the last 72 hours is $528.
The fastest flight from District of Columbia to Portugal takes 7h 05m
Direct flights go from District of Columbia 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 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 $338Free CancellationRating
7.0
103 reviews
Search PLAY flights
KLMPriceFrom $419Free CancellationRating
7.8
1,389 reviews
Search KLM flights
DeltaPriceFrom $496Free CancellationRating
7.9
7,961 reviews
Search Delta flights
United AirlinesPriceFrom $499Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
American AirlinesPriceFrom $508Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
TAP AIR PORTUGALPriceFrom $509Free CancellationRating
7.1
1,997 reviews
Search TAP AIR PORTUGAL flights
British AirwaysPriceFrom $510Free CancellationRating
6.7
7,413 reviews
Search British Airways flights
IberiaPriceFrom $515Free CancellationRating
7.0
2,966 reviews
Search Iberia flights
Royal Air MarocPriceFrom $552Free CancellationRating
6.2
514 reviews
Search Royal Air Maroc flights
Turkish AirlinesPriceFrom $586Free CancellationRating
7.3
3,984 reviews
Search Turkish Airlines 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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