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Cheap flights from Washington, D.C. Reagan-National Airport to Portugal from $215

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 4/15. 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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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.
Multiple Airlines Logo
11:05 am - 6:30 pm
DCA
-
OPO
26h 25m
2 stops
Multiple Airlines Logo
6:20 am - 6:03 pm
OPO
-
DCA
16h 43m
2 stops
$468Multiple Airlines
Wed, Apr 15 - Wed, Apr 22
Multiple Airlines Logo
4:15 pm - 12:05 pm
DCA
-
OPO
15h 50m
2 stops
Multiple Airlines Logo
12:00 pm - 10:43 pm
OPO
-
DCA
15h 43m
2 stops
$477Multiple Airlines
Tue, Mar 24 - Tue, Mar 31
British Airways Logo
7:46 pm - 7:50 pm
DCA
-
OPO
19h 04m
2 stops
British Airways Logo
8:20 am - 10:17 pm
OPO
-
DCA
18h 57m
2 stops
$483British Airways
Mon, Apr 13 - Tue, Apr 21
United Airlines Logo
8:10 pm - 9:30 am
DCA
-
OPO
9h 20m
1 stop
United Airlines Logo
6:00 am - 10:43 pm
OPO
-
DCA
21h 43m
2 stops
$490United Airlines
Tue, Mar 24 - Tue, Mar 31
United Airlines Logo
11:05 am - 9:30 am
DCA
-
OPO
17h 25m
1 stop
United Airlines Logo
12:35 pm - 9:35 pm
OPO
-
DCA
13h 00m
1 stop
$494United Airlines
Sun, Feb 22 - Tue, Mar 10
Air Canada Logo
4:15 pm - 12:50 pm
DCA
-
OPO
15h 35m
2 stops
Air Canada Logo
6:00 am - 8:55 am
OPO
-
DCA
31h 55m
2 stops
$496Air Canada
Mon, Feb 9 - Wed, Feb 18
Multiple Airlines Logo
6:00 am - 11:15 am
DCA
-
OPO
24h 15m
2 stops
Multiple Airlines Logo
6:00 am - 8:55 am
OPO
-
DCA
31h 55m
2 stops
$497Multiple Airlines
Wed, Feb 18 - Wed, Feb 25
Delta Logo
11:10 am - 10:30 am
DCA
-
OPO
18h 20m
2 stops
Delta Logo
5:00 am - 4:29 pm
OPO
-
DCA
16h 29m
2 stops
$498Delta
Sun, Jan 25 - Wed, Feb 4
Air Canada Logo
6:59 am - 2:30 pm
DCA
-
FAO
26h 31m
2 stops
Air Canada Logo
3:55 pm - 9:53 pm
FAO
-
DCA
34h 58m
2 stops
$879Air Canada
Thu, Apr 2 - Tue, Apr 14
TAP AIR PORTUGAL Logo
12:00 pm - 11:10 am
DCA
-
PXO
18h 10m
2 stops
TAP AIR PORTUGAL Logo
12:00 pm - 7:59 am
PXO
-
DCA
24h 59m
2 stops
$2,094TAP AIR PORTUGAL
Sun, Apr 19 - Thu, Apr 23

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
Apr 7
DCA2:00 pmWashington, D.C. Reagan-National
20h 35m
2 stops
LIS3:35 pmLisbon Humberto Delgado
Apr 14
LIS12:45 pmLisbon Humberto Delgado
38h 58m
2 stops
DCA10:43 pmWashington, D.C. Reagan-National
$595
Scandinavian Airlines
Apr 26
DCA6:00 amWashington, D.C. Reagan-National
29h 00m
2 stops
LIS4:00 pmLisbon Humberto Delgado
May 5
LIS12:45 pmLisbon Humberto Delgado
38h 58m
2 stops
DCA10:43 pmWashington, D.C. Reagan-National
$609
Scandinavian Airlines
Apr 13
DCA6:00 amWashington, D.C. Reagan-National
35h 05m
2 stops
LIS10:05 pmLisbon Humberto Delgado
Apr 16
LIS7:00 amLisbon Humberto Delgado
20h 43m
2 stops
DCA10:43 pmWashington, D.C. Reagan-National
$613

Air Canada flights from Washington, D.C. Reagan-National Airport to Portugal

Our best Air Canada deals on Washington, D.C. Reagan-National Airport to Portugal flight tickets
Air Canada
Feb 9
DCA4:15 pmWashington, D.C. Reagan-National
15h 35m
2 stops
OPO12:50 pmPorto
Feb 18
OPO6:00 amPorto
31h 55m
2 stops
DCA8:55 amWashington, D.C. Reagan-National
$496
Air Canada
Feb 18
DCA11:05 amWashington, D.C. Reagan-National
20h 00m
2 stops
OPO12:05 pmPorto
Feb 25
OPO6:00 amPorto
31h 55m
2 stops
DCA8:55 amWashington, D.C. Reagan-National
$497
Air Canada
Mar 21
DCA8:40 pmWashington, D.C. Reagan-National
35h 00m
2 stops
OPO11:40 amPorto
Mar 31
OPO6:00 amPorto
21h 43m
2 stops
DCA10:43 pmWashington, D.C. Reagan-National
$513

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 January 16, 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.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Wed 4/15

11:05 am-6:30 pm

2 stops26h 25m

Porto

Wed 4/22

6:20 am-6:03 pm

2 stops16h 43m

$468

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Tue 3/24

4:15 pm-12:05 pm

2 stops15h 50m

Porto

Tue 3/31

12:00 pm-10:43 pm

2 stops15h 43m

$477

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Mon 4/13

7:46 pm-7:50 pm

2 stops19h 04m

Porto

Tue 4/21

8:20 am-10:17 pm

2 stops18h 57m

$483

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Tue 3/24

8:10 pm-9:30 am

1 stop9h 20m

Porto

Tue 3/31

6:00 am-10:43 pm

2 stops21h 43m

$490

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Sun 2/22

11:05 am-9:30 am

1 stop17h 25m

Porto

Tue 3/10

12:35 pm-9:35 pm

1 stop13h 00m

$494

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Mon 2/9

4:15 pm-12:50 pm

2 stops15h 35m

Porto

Wed 2/18

6:00 am-8:55 am

2 stops31h 55m

$496

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Wed 2/18

6:00 am-11:15 am

2 stops24h 15m

Porto

Wed 2/25

6:00 am-8:55 am

2 stops31h 55m

$497

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Sun 1/25

11:10 am-10:30 am

2 stops18h 20m

Porto

Wed 2/4

5:00 am-4:29 pm

2 stops16h 29m

$498

Washington, D.C.Faro

DCA - FAO

DCAFAO

Washington, D.C. Reagan-National

Thu 4/2

6:59 am-2:30 pm

2 stops26h 31m

Faro

Tue 4/14

3:55 pm-9:53 pm

2 stops34h 58m

$879

Washington, D.C.Porto Santo

DCA - PXO

DCAPXO

Washington, D.C. Reagan-National

Sun 4/19

12:00 pm-11:10 am

2 stops18h 10m

Porto Santo

Thu 4/23

12:00 pm-7:59 am

2 stops24h 59m

$2,094

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 September instead. Flights to Portugal in September, while not as cheap as those in November, still average around $685.

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

You could potentially save up to 52% 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 40m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Portugal takes 8h 40m
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.
Search flight deals

  • 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
TAP AIR PORTUGALPriceFrom $506Free CancellationRating
7.1
2,121 reviews
Search TAP AIR PORTUGAL flights
United AirlinesPriceFrom $520Free CancellationRating
7.4
9,163 reviews
Search United Airlines 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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Find better results for your trip to Portugal

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