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Cheap flights from Washington, D.C. Reagan-National Airport to Portugal from $363

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. Reagan-National Airport to Portugal departing on 6/21. 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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Find the cheapest flights from Washington, D.C. Reagan-National Airport to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
7:33 pm - 7:25 pm
DCA
-
FAO
18h 52m
2 stops
KLM Logo
9:45 pm - 6:59 pm
FAO
-
DCA
26h 14m
2 stops
$548KLM
Mon, Apr 13 - Mon, Apr 20
Multiple Airlines Logo
11:00 am - 10:05 pm
DCA
-
LIS
30h 05m
2 stops
Multiple Airlines Logo
7:00 am - 10:41 pm
LIS
-
DCA
20h 41m
2 stops
$586Multiple Airlines
Tue, Apr 21 - Thu, Apr 30
Delta Logo
5:06 pm - 3:25 pm
DCA
-
OPO
17h 19m
2 stops
Delta Logo
11:45 am - 10:41 pm
OPO
-
DCA
15h 56m
2 stops
$588Delta
Tue, Apr 7 - Wed, Apr 15
American Airlines Logo
1:29 pm - 7:40 am
DCA
-
OPO
13h 11m
2 stops
American Airlines Logo
8:20 am - 6:58 pm
OPO
-
DCA
15h 38m
2 stops
$595American Airlines
Sun, Apr 26 - Wed, May 6
United Airlines Logo
2:59 pm - 6:55 am
DCA
-
OPO
10h 56m
1 stop
United Airlines Logo
9:00 am - 3:53 pm
OPO
-
DCA
11h 53m
1 stop
$601United Airlines
Sun, Jul 26 - Fri, Aug 21
Delta Logo
5:06 pm - 3:25 pm
DCA
-
OPO
17h 19m
2 stops
Delta Logo
5:00 am - 4:36 pm
OPO
-
DCA
16h 36m
2 stops
$608Delta
Tue, Apr 7 - Wed, Apr 15
American Airlines Logo
1:29 pm - 7:40 am
DCA
-
OPO
13h 11m
2 stops
American Airlines Logo
8:20 am - 6:58 pm
OPO
-
DCA
15h 38m
2 stops
$615American Airlines
Sun, Apr 26 - Wed, May 6
United Airlines Logo
8:25 pm - 8:40 am
DCA
-
PDL
8h 15m
1 stop
United Airlines Logo
9:35 am - 6:12 pm
PDL
-
DCA
12h 37m
1 stop
$775United Airlines
Mon, Aug 10 - Fri, Aug 21
TAP AIR PORTUGAL Logo
11:00 am - 11:10 am
DCA
-
PXO
19h 10m
2 stops
TAP AIR PORTUGAL Logo
12:00 pm - 8:20 am
PXO
-
DCA
25h 20m
2 stops
$1,565TAP AIR PORTUGAL
Sun, Apr 19 - Thu, Apr 23
TAP AIR PORTUGAL Logo
11:05 am - 4:30 pm
DCA
-
SMA
25h 25m
2 stops
TAP AIR PORTUGAL Logo
5:20 pm - 6:57 pm
SMA
-
DCA
29h 37m
2 stops
$1,667TAP AIR PORTUGAL
Wed, Apr 22 - Thu, Apr 30

Scandinavian Airlines flights from Washington, D.C. Reagan-National Airport to Portugal

Our best Scandinavian Airlines deals on Washington, D.C. Reagan-National Airport to Portugal flight tickets
Scandinavian Airlines
Aug 20
DCA6:05 amWashington, D.C. Reagan-National
35h 00m
2 stops
LIS10:05 pmLisbon Humberto Delgado
Sep 5
LIS7:00 amLisbon Humberto Delgado
21h 12m
2 stops
DCA11:12 pmWashington, D.C. Reagan-National
$614
Scandinavian Airlines
May 10
DCA6:09 amWashington, D.C. Reagan-National
28h 51m
2 stops
LIS4:00 pmLisbon Humberto Delgado
May 23
LIS7:00 amLisbon Humberto Delgado
21h 24m
2 stops
DCA11:24 pmWashington, D.C. Reagan-National
$615
Scandinavian Airlines
Apr 4
DCA2:00 pmWashington, D.C. Reagan-National
21h 05m
2 stops
LIS4:05 pmLisbon Humberto Delgado
Apr 14
LIS12:45 pmLisbon Humberto Delgado
38h 56m
2 stops
DCA10:41 pmWashington, D.C. Reagan-National
$627

American Airlines flights from Washington, D.C. Reagan-National Airport to Portugal

Our best American Airlines deals on Washington, D.C. Reagan-National Airport to Portugal flight tickets
American Airlines
Apr 26
DCA1:29 pmWashington, D.C. Reagan-National
13h 11m
2 stops
OPO7:40 amPorto
May 6
OPO8:20 amPorto
15h 38m
2 stops
DCA6:58 pmWashington, D.C. Reagan-National
$595
American Airlines
Apr 26
DCA1:29 pmWashington, D.C. Reagan-National
13h 11m
2 stops
OPO7:40 amPorto
May 6
OPO8:20 amPorto
15h 38m
2 stops
DCA6:58 pmWashington, D.C. Reagan-National
$615
American Airlines
Apr 25
DCA10:00 amWashington, D.C. Reagan-National
16h 40m
2 stops
OPO7:40 amPorto
May 7
OPO8:20 amPorto
15h 38m
2 stops
DCA6:58 pmWashington, D.C. Reagan-National
$645

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport 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 27, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Faro

DCA - FAO

DCAFAO

Washington, D.C. Reagan-National

Mon 4/13

7:33 pm-7:25 pm

2 stops18h 52m

Faro

Mon 4/20

9:45 pm-6:59 pm

2 stops26h 14m

$548

Washington, D.C.Lisbon

DCA - LIS

DCALIS

Washington, D.C. Reagan-National

Tue 4/21

11:00 am-10:05 pm

2 stops30h 05m

Lisbon Humberto Delgado

Thu 4/30

7:00 am-10:41 pm

2 stops20h 41m

$586

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Tue 4/7

5:06 pm-3:25 pm

2 stops17h 19m

Porto

Wed 4/15

11:45 am-10:41 pm

2 stops15h 56m

$588

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Sun 4/26

1:29 pm-7:40 am

2 stops13h 11m

Porto

Wed 5/6

8:20 am-6:58 pm

2 stops15h 38m

$595

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Sun 7/26

2:59 pm-6:55 am

1 stop10h 56m

Porto

Fri 8/21

9:00 am-3:53 pm

1 stop11h 53m

$601

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Tue 4/7

5:06 pm-3:25 pm

2 stops17h 19m

Porto

Wed 4/15

5:00 am-4:36 pm

2 stops16h 36m

$608

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Sun 4/26

1:29 pm-7:40 am

2 stops13h 11m

Porto

Wed 5/6

8:20 am-6:58 pm

2 stops15h 38m

$615

Washington, D.C.Ponta Delgada

DCA - PDL

DCAPDL

Washington, D.C. Reagan-National

Mon 8/10

8:25 pm-8:40 am

1 stop8h 15m

Ponta Delgada Nordela

Fri 8/21

9:35 am-6:12 pm

1 stop12h 37m

$775

Washington, D.C.Porto Santo

DCA - PXO

DCAPXO

Washington, D.C. Reagan-National

Sun 4/19

11:00 am-11:10 am

2 stops19h 10m

Porto Santo

Thu 4/23

12:00 pm-8:20 am

2 stops25h 20m

$1,565

Washington, D.C.Vila do Porto

DCA - SMA

DCASMA

Washington, D.C. Reagan-National

Wed 4/22

11:05 am-4:30 pm

2 stops25h 25m

Vila do Porto Santa Maria

Thu 4/30

5:20 pm-6:57 pm

2 stops29h 37m

$1,667

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 Washington, D.C. Reagan-National Airport 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 Washington, D.C. Reagan-National Airport is in November. Flight prices, which tend to average around $664, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Portugal from Washington, D.C. Reagan-National Airport during March instead. Flights to Portugal in March, while not as cheap as those in November, still average around $890.

Can stopping save me money on Washington, D.C. Reagan-National Airport to Portugal flights?

You could potentially save up to 8% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to Portugal flight.

Cheap Washington, D.C. Reagan-National Airport to Portugal flight deals and tips

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

Fastest flight time

8h 15m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Portugal takes 8h 15m
There are no direct flights from Washington, D.C. Reagan-National Airport to Portugal. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Portugal.
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  • When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Portugal?

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

  • How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Portugal?

  • How old do you have to be to fly from Washington, D.C. Reagan-National Airport 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. Reagan-National Airport to Portugal.

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

    The required travel and health documents for your Portugal trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Portugal. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Washington, D.C. Reagan-National Airport to Portugal

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Portugal with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $520Free CancellationRating
7.4
9,352 reviews
Search United Airlines flights
TAP AIR PORTUGALPriceFrom $617Free CancellationRating
7.1
2,151 reviews
Search TAP AIR PORTUGAL flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Portugal. momondo saves you time and could save you money on your trip.

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

All flight searches from Washington, D.C. to Portugal on momondo can be filtered to show those which offer flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight 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?

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.

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