Reagan-National

$367+ Cheap flights from Portugal to Reagan-National (DCA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
LIS — DCA
Feb 5 — Feb 121
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Cheap flight deals from Portugal to Reagan-National

Keep the following information in mind while searching for Portugal to Reagan-National flight deals. Data was last updated January 6, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$521
(Delta)

One-way from

$367
(American Airlines)

Popular in

July

Cheapest in

September

Average price

$726
Provider with most accurate pricing for Lisbon Humberto Delgado-Washington, D.C. (WAS) flight deals.
Provider most trusted by Cheapflights users for Lisbon Humberto Delgado-Washington, D.C. (WAS) flights.
From Portugal to Washington, D.C. Reagan-National
One-way flight from Portugal to Washington, D.C. Reagan-National
Highest demand for flights based on searches. 10% potential increase in price ($85 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Average for round-trip flights in January 2026

Find flight deals from Portugal to Reagan-National

Cheapest flights from Portugal to Reagan-National
Explore the most affordable flight options available from Portugal to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 6, 2026.

This Delta deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/2411:15 amOPO - DCA
2 stops16h 44mDelta
Tue 1/2711:10 amDCA - OPO
2 stops18h 20mDelta
Deal found 1/6$521
This British Airways deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/1510:55 amLIS - DCA
1 stop10h 55mBritish Airways
Wed 1/215:45 pmDCA - LIS
2 stops16h 05mBritish Airways
Deal found 1/6$521
This Delta deal was found by Cheapflights users on 1/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/1511:15 amOPO - DCA
2 stops16h 33mDelta
Wed 1/2812:00 pmDCA - OPO
2 stops17h 30mDelta
Deal found 1/5$522
This Flighttix deal was found by Cheapflights users on 1/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/138:20 amLIS - DCA
2 stops29h 25mBritish Airways
Sat 2/217:41 pmDCA - LIS
2 stops32h 24mBritish Airways
Deal found 1/4$527
This Delta deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/1511:25 amLIS - DCA
2 stops16h 23mDelta
Wed 1/212:35 pmDCA - LIS
2 stops15h 45mDelta
Deal found 1/6$530
This KLM deal was found by Cheapflights users on 1/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/125:00 amLIS - DCA
2 stops16h 29mMultiple Airlines
Sun 1/255:59 pmDCA - LIS
2 stops16h 11mMultiple Airlines
Deal found 1/5$532
This American Airlines deal was found by Cheapflights users on 1/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/1510:55 amLIS - DCA
1 stop15h 35mAmerican Airlines
Wed 1/211:44 pmDCA - LIS
1 stop14h 11mAmerican Airlines
Deal found 1/5$533
This Delta deal was found by Cheapflights users on 1/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/215:00 amLIS - DCA
2 stops17h 53mDelta
Fri 1/3011:10 amDCA - LIS
1 stop15h 50mDelta
Deal found 1/5$534
This Iberia deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/38:20 amOPO - DCA
2 stops15h 36mIberia
Tue 2/171:44 pmDCA - OPO
2 stops17h 01mIberia
Deal found 1/6$536
This KLM deal was found by Cheapflights users on 1/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2110:00 amLIS - DCA
1 stop17h 48mKLM
Fri 1/306:00 amDCA - LIS
1 stop21h 00mKLM
Deal found 1/6$536
This American Airlines deal was found by Cheapflights users on 1/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/158:20 amOPO - DCA
2 stops15h 36mAmerican Airlines
Wed 1/281:35 pmDCA - OPO
2 stops13h 05mAmerican Airlines
Deal found 1/5$537
This British Airways deal was found by Cheapflights users on 1/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/410:40 amLIS - DCA
2 stops16h 23mBritish Airways
Sun 2/84:43 pmDCA - LIS
1 stop11h 22mBritish Airways
Deal found 1/5$542

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portugal to Reagan-National 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, Cheapflights users made 2,558,603 searches. Data last updated January 6, 2026.
Use the filters below to find and compare flights from Portugal to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Portugal

Fly to

Reagan-National

Route

Depart

Return

Price

PortoWashington, D.C.

OPO - DCA

OPODCA

Porto

Sat 1/24

11:15 am-10:59 pm

2 stops16h 44m

Washington, D.C. Reagan-National

Tue 1/27

11:10 am-10:30 am

2 stops18h 20m

$521

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Wed 2/11

11:05 am-4:50 pm

1 stop10h 45m

Washington, D.C. Reagan-National

Fri 2/20

4:34 pm-10:25 pm

2 stops24h 51m

$521

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Fri 2/13

11:05 am-8:46 pm

1 stop14h 41m

Washington, D.C. Reagan-National

Wed 2/18

1:28 pm-2:50 pm

2 stops20h 22m

$521

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Thu 2/12

10:55 am-8:43 pm

1 stop14h 48m

Washington, D.C. Reagan-National

Sun 2/15

1:30 pm-12:05 pm

2 stops17h 35m

$521

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Thu 2/12

10:55 am-8:43 pm

1 stop14h 48m

Washington, D.C. Reagan-National

Wed 2/18

1:28 pm-2:50 pm

2 stops20h 22m

$521

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Fri 2/13

11:05 am-8:46 pm

1 stop14h 41m

Washington, D.C. Reagan-National

Sun 2/15

12:25 pm-2:50 pm

2 stops21h 25m

$521

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Fri 2/13

11:05 am-8:46 pm

1 stop14h 41m

Washington, D.C. Reagan-National

Fri 2/20

4:34 pm-5:55 pm

2 stops20h 21m

$521

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Wed 2/11

11:05 am-4:50 pm

1 stop10h 45m

Washington, D.C. Reagan-National

Sun 2/15

2:16 pm-12:05 pm

2 stops16h 49m

$521

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Sat 2/14

10:40 am-7:49 pm

1 stop14h 09m

Washington, D.C. Reagan-National

Wed 2/18

5:00 pm-2:50 pm

2 stops16h 50m

$521

LisbonWashington, D.C.

LIS - DCA

LISDCA

Lisbon Humberto Delgado

Sat 2/7

10:40 am-4:50 pm

1 stop11h 10m

Washington, D.C. Reagan-National

Sun 2/15

3:40 pm-12:05 pm

2 stops15h 25m

$521

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

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Best time to book a flight from Portugal to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Portugal with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portugal to Washington, D.C. Reagan-National Airport
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Portugal to Reagan-National. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from Portugal to Washington, D.C. Reagan-National Airport?

    Departing from Portugal to Washington, D.C. Reagan-National Airport will take you 10h 45m. Airlines will cover a distance of 3562 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Portugal to Reagan-National that include hotel bookings?

    Yes. In addition to deals on Portugal to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portugal to Reagan-National?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portugal to Reagan-National.

  • Can I find deals for business class flights from Portugal to Reagan-National?

    Yes. Cheapflights offers flight deals from Portugal to Reagan-National by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Washington, D.C. Reagan-National Airport?

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Hanover
Fredericksburg
Linthicum Heights
Rockville
Laurel
Towson
Manassas
National Harbor
Bowie
Largo
McLean
Clinton
Cordova

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