Portugal

$312+ Cheap flights from Reagan-National (DCA) to Portugal

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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — LIS
Aug 12 — Aug 191
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Cheap flight deals from Reagan-National to Portugal

Keep the following information in mind while searching for Reagan-National to Portugal flight deals. Data was last updated August 7, 2025.

Round-trip from

$597
(Iberia)

One-way from

$312
(Mytrip)

Popular in

December

Cheapest in

February

Average price

$937
From Washington, D.C. Reagan-National to Portugal
One-way flight from Washington, D.C. Reagan-National to Portugal
Highest demand for flights based on searches. 2% potential increase in price ($19 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
Average for round-trip flights in August 2025

Find flight deals from Reagan-National to Portugal

Cheapest flights from Reagan-National to Portugal
Explore the most affordable flight options available from Reagan-National to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 7, 2025.

This American Airlines deal was found by Cheapflights users on 8/7. 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.
Wed 10/110:49 amDCA - OPO
2 stops15h 46mAmerican Airlines
Wed 10/88:15 amOPO - DCA
2 stops18h 45mAmerican Airlines
Deal found 8/7$608
This Mytrip deal was found by Cheapflights users on 8/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/269:40 amDCA - OPO
3 stops30h 20mMultiple Airlines
Mon 9/297:25 pmOPO - DCA
3 stops25h 26mMultiple Airlines
Deal found 8/6$610
This Mytrip deal was found by Cheapflights users on 8/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/139:40 amDCA - PDL
3 stops34h 05mMultiple Airlines
Mon 10/207:40 pmPDL - DCA
3 stops28h 04mMultiple Airlines
Deal found 8/6$622
This Mytrip deal was found by Cheapflights users on 8/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/189:40 amDCA - OPO
2 stops24h 25mMultiple Airlines
Wed 8/2710:25 pmOPO - DCA
3 stops26h 17mMultiple Airlines
Deal found 8/7$622
This Iberia deal was found by Cheapflights users on 8/7. 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 9/161:15 pmDCA - OPO
2 stops25h 40mIberia
Mon 9/228:35 pmOPO - DCA
2 stops31h 32mIberia
Deal found 8/7$639
This Mytrip deal was found by Cheapflights users on 8/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/216:00 amDCA - OPO
2 stops23h 35mMultiple Airlines
Mon 8/257:25 pmOPO - DCA
3 stops31h 23mMultiple Airlines
Deal found 8/6$641
This CheapOair deal was found by Cheapflights users on 8/6. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/282:59 pmDCA - LIS
2 stops37h 56mMultiple Airlines
Fri 11/74:55 pmLIS - DCA
2 stops34h 24mMultiple Airlines
Deal found 8/6$643
This Mytrip deal was found by Cheapflights users on 8/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/49:40 amDCA - LIS
2 stops19h 40mMultiple Airlines
Thu 9/117:40 amLIS - DCA
3 stops19h 11mMultiple Airlines
Deal found 8/5$644
This FlightHub deal was found by Cheapflights users on 8/6. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/176:05 amDCA - LIS
2 stops29h 05mMultiple Airlines
Thu 10/237:00 amLIS - DCA
2 stops21h 04mMultiple Airlines
Deal found 8/6$653
This United Airlines deal was found by Cheapflights users on 8/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/128:40 pmDCA - OPO
2 stops33h 35mUnited Airlines
Mon 10/206:00 amOPO - DCA
2 stops41h 04mUnited Airlines
Deal found 8/6$655
This Mytrip deal was found by Cheapflights users on 8/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/59:40 amDCA - LIS
3 stops29h 20mMultiple Airlines
Fri 9/127:05 amLIS - DCA
2 stops15h 59mMultiple Airlines
Deal found 8/6$658
This Mytrip deal was found by Cheapflights users on 8/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/46:59 amDCA - LIS
2 stops22h 06mMultiple Airlines
Sun 10/1210:00 pmLIS - DCA
3 stops25h 04mMultiple Airlines
Deal found 8/5$660

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National 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, Cheapflights users made 2,558,603 searches. Data last updated August 7, 2025.
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

Reagan-National

Fly to

Portugal

Route

Depart

Return

Price

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Wed 10/1

10:49 am-7:35 am

2 stops15h 46m

Porto

Wed 10/8

8:15 am-10:00 pm

2 stops18h 45m

$608

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Fri 9/26

9:40 am-9:00 pm

3 stops30h 20m

Porto

Mon 9/29

7:25 pm-3:51 pm

3 stops25h 26m

$610

Washington, D.C.Faro

DCA - FAO

DCAFAO

Washington, D.C. Reagan-National

Tue 9/9

11:00 am-7:35 pm

2 stops27h 35m

Faro

Mon 9/15

6:10 pm-6:04 pm

3 stops28h 54m

$622

Washington, D.C.Ponta Delgada

DCA - PDL

DCAPDL

Washington, D.C. Reagan-National

Mon 10/13

9:40 am-11:45 pm

3 stops34h 05m

Ponta Delgada Nordela

Mon 10/20

7:40 pm-7:44 pm

3 stops28h 04m

$622

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Mon 8/18

9:40 am-3:05 pm

2 stops24h 25m

Porto

Wed 8/27

10:25 pm-7:42 pm

3 stops26h 17m

$622

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Tue 9/16

1:15 pm-7:55 pm

2 stops25h 40m

Porto

Mon 9/22

8:35 pm-11:07 pm

2 stops31h 32m

$639

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Thu 8/21

6:00 am-10:35 am

2 stops23h 35m

Porto

Mon 8/25

7:25 pm-9:48 pm

3 stops31h 23m

$641

Washington, D.C.Lisbon

DCA - LIS

DCALIS

Washington, D.C. Reagan-National

Tue 10/28

2:59 pm-8:55 am

2 stops37h 56m

Lisbon Humberto Delgado

Fri 11/7

4:55 pm-10:19 pm

2 stops34h 24m

$643

Washington, D.C.Lisbon

DCA - LIS

DCALIS

Washington, D.C. Reagan-National

Thu 9/4

9:40 am-10:20 am

2 stops19h 40m

Lisbon Humberto Delgado

Thu 9/11

7:40 am-9:51 pm

3 stops19h 11m

$644

Washington, D.C.Faro

DCA - FAO

DCAFAO

Washington, D.C. Reagan-National

Mon 9/8

9:40 am-5:15 pm

2 stops26h 35m

Faro

Tue 9/16

11:15 am-6:04 pm

3 stops35h 49m

$647

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/6

Showing 1-10 of 60 results
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Best time to book a flight from Reagan-National to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Reagan-National 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 Washington, D.C. Reagan-National Airport to Portugal

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Portugal?

Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Portugal (average of $612). Flying from Washington, D.C. Reagan-National Airport to Portugal in June is currently the most expensive (average of $1,128). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DCA to PT?

Find hourly flight availability from Reagan-National to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 7, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Reagan-National Airport to Portugal as you normally would.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated August 7, 2025.
Get a feel of what it's like to fly with Delta, KLM, and Scandinavian Airlines from Washington, D.C. Reagan-National Airport to Portugal by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.0
Very good

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good
8.0
Very good

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very good

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Portugal?

    Currently, January is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Portugal (average of $612). Flying from Washington, D.C. Reagan-National Airport to Portugal in June is currently the most expensive (average of $1,128). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Reagan-National to Portugal

See prices for flight routes from nearby airports that may be better suited for you.

Top 4 airlines flying from Reagan-National to Portugal

Discover the top 4 airlines that operate flights from Reagan-National to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$520Average$1,247FlexibilityNo cancel feeOn-time69%
TAP AIR PORTUGALCheapest$561Average$1,024FlexibilityNo cancel feeOn-timeN/A
DeltaCheapest$600Average$2,136FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$968Average$968FlexibilityNo cancel feeOn-time76%

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