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$366+ 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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — LIS
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$597
(CheapOair)

One-way from

$366
(Mytrip)

Popular in

December

Cheapest in

February

Average price

$686
Provider with most accurate pricing for Washington, D.C. (WAS)-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Lisbon Humberto Delgado flights.
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From Washington, D.C. Reagan-National to Portugal
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One-way flight from Washington, D.C. Reagan-National to Portugal
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Highest demand for flights based on searches. 0% potential increase in price ($1 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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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 February 20, 2025.

This CheapOair deal was found by Cheapflights users on 2/20. 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.
Sat 3/224:10 pmDCA - OPO
2 stops16h 40mAir Canada
Mon 3/3112:10 pmOPO - DCA
2 stops32h 14mAir Canada
Deal found 2/20$598
This Delta deal was found by Cheapflights users on 2/20. 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.
Sun 3/3011:39 amDCA - OPO
2 stops18h 01mDelta
Sun 4/69:20 amOPO - DCA
2 stops19h 24mDelta
Deal found 2/20$609
This American Airlines deal was found by Cheapflights users on 2/20. 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 11/51:44 pmDCA - OPO
2 stops12h 56mAmerican Airlines
Thu 11/138:20 amOPO - DCA
2 stops15h 55mAmerican Airlines
Deal found 2/20$643
This Mytrip deal was found by Cheapflights users on 2/19. 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 3/244:10 pmDCA - LIS
3 stops19h 05mMultiple Airlines
Tue 4/17:40 amLIS - DCA
2 stops18h 28mMultiple Airlines
Deal found 2/19$652
This Mytrip deal was found by Cheapflights users on 2/20. 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.
Wed 4/24:10 pmDCA - OPO
3 stops24h 55mMultiple Airlines
Wed 4/97:15 amOPO - DCA
2 stops18h 53mMultiple Airlines
Deal found 2/20$706
This Mytrip deal was found by Cheapflights users on 2/19. 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.
Tue 4/14:10 pmDCA - FNC
3 stops28h 05mMultiple Airlines
Tue 4/82:45 pmFNC - DCA
2 stops35h 23mMultiple Airlines
Deal found 2/19$769
This Mytrip deal was found by Cheapflights users on 2/18. 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 4/146:50 pmDCA - LIS
1 stop11h 20mAir Canada
Tue 4/2211:25 amLIS - DCA
1 stop32h 59mAir Canada
Deal found 2/18$772
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Mon 4/144:10 pmDCA - LIS
1 stop12h 10mUnited Airlines
Wed 4/2311:25 amLIS - DCA
2 stops32h 01mUnited Airlines
Deal found 2/20$779
This American Airlines deal was found by Cheapflights users on 2/19. 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.
Mon 4/281:44 pmDCA - LIS
2 stops14h 21mAmerican Airlines
Wed 5/76:35 amLIS - DCA
2 stops14h 19mAmerican Airlines
Deal found 2/19$810
This Orbitz deal was found by Cheapflights users on 2/19. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/198:15 pmDCA - LIS
1 stop31h 50mBritish Airways
Tue 4/2911:05 amLIS - DCA
1 stop13h 54mBritish Airways
Deal found 2/19$812
This CheapOair deal was found by Cheapflights users on 2/20. 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.
Sun 4/273:54 pmDCA - OPO
2 stops23h 31mBritish Airways
Wed 5/78:15 amOPO - DCA
2 stops15h 49mBritish Airways
Deal found 2/20$816
This Iberia deal was found by Cheapflights users on 2/18. 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.
Sun 9/215:00 pmDCA - LIS
2 stops22h 05mIberia
Tue 9/308:45 pmLIS - DCA
2 stops24h 34mIberia
Deal found 2/18$818

Find flights from Reagan-National to Portugal within your budget

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 February 20, 2025.

Fly from

Reagan-National

Fly to

Portugal

Route

Depart

Return

Price

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Sat 3/22

4:10 pm-12:50 pm

2 stops16h 40m

Porto

Mon 3/31

12:10 pm-3:24 pm

2 stops32h 14m

$598

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Sun 3/30

11:39 am-10:40 am

2 stops18h 01m

Porto

Sun 4/6

9:20 am-11:44 pm

2 stops19h 24m

$609

Washington, D.C.Lisbon

DCA - LIS

DCALIS

Washington, D.C. Reagan-National

Mon 3/24

4:10 pm-3:15 pm

3 stops19h 05m

Lisbon Humberto Delgado

Tue 4/1

7:40 am-9:08 pm

2 stops18h 28m

$652

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Wed 4/2

4:10 pm-10:05 pm

3 stops24h 55m

Porto

Wed 4/9

7:15 am-9:08 pm

2 stops18h 53m

$706

Washington, D.C.Funchal

DCA - FNC

DCAFNC

Washington, D.C. Reagan-National

Tue 4/1

4:10 pm-1:15 am

3 stops28h 05m

Funchal Madeira

Tue 4/8

2:45 pm-9:08 pm

2 stops35h 23m

$769

Washington, D.C.Lisbon

DCA - LIS

DCALIS

Washington, D.C. Reagan-National

Mon 4/14

6:50 pm-11:10 am

1 stop11h 20m

Lisbon Humberto Delgado

Tue 4/22

11:25 am-3:24 pm

1 stop32h 59m

$772

Washington, D.C.Lisbon

DCA - LIS

DCALIS

Washington, D.C. Reagan-National

Mon 4/14

4:10 pm-9:20 am

1 stop12h 10m

Lisbon Humberto Delgado

Wed 4/23

11:25 am-2:26 pm

2 stops32h 01m

$779

Washington, D.C.Lisbon

DCA - LIS

DCALIS

Washington, D.C. Reagan-National

Mon 4/28

1:44 pm-9:05 am

2 stops14h 21m

Lisbon Humberto Delgado

Wed 5/7

6:35 am-3:54 pm

2 stops14h 19m

$810

Washington, D.C.Lisbon

DCA - LIS

DCALIS

Washington, D.C. Reagan-National

Sat 4/19

8:15 pm-9:05 am

1 stop31h 50m

Lisbon Humberto Delgado

Tue 4/29

11:05 am-7:59 pm

1 stop13h 54m

$812

Washington, D.C.Porto

DCA - OPO

DCAOPO

Washington, D.C. Reagan-National

Sun 4/27

3:54 pm-8:25 pm

2 stops23h 31m

Porto

Wed 5/7

8:15 am-7:04 pm

2 stops15h 49m

$816

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Showing 1-10 of 54 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.

Travel insights for flights from Reagan-National to Portugal

Get recent, data-driven insights about flights from Reagan-National to Portugal including ideal travel times, pricing trends, and more.

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 $1,234). 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 February 20, 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.

Rainfall in Portugal by month

Plan your trip to Portugal by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.

Temperature in Portugal by month

Plan your trip to Portugal by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portugal, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 February 20, 2025.
Get a feel of what it's like to fly with Delta, KLM and Virgin Atlantic from Washington, D.C. to Portugal by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,220 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic
7.5
Good
654 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines
7.4
Good
8,766 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,220 reviews

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Portugal one-way?

    The cheapest airlines for a one-way flight from Washington, D.C. Reagan-National Airport to Portugal are American Airlines ($439), Iberia ($463), and TAP AIR PORTUGAL ($565).

  • What are the most popular routes from Washington, D.C. Reagan-National Airport to Portugal?

    The most popular route from Washington, D.C. Reagan-National Airport to Portugal is Washington, D.C. Reagan-National - Lisbon Humberto Delgado. You may also consider Washington, D.C. Reagan-National - Porto or Washington, D.C. Reagan-National - Faro.

  • 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 $1,234). 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.
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Top 7 airlines flying from Reagan-National to Portugal

Discover the top 7 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$512Average$1,145FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$562Average$1,029FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$567Average$1,212FlexibilityNo cancel feeOn-time69%
TAP AIR PORTUGALCheapest$592Average$977FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$619Average$1,029FlexibilityNo cancel feeOn-time75%
Air CanadaCheapest$851Average$1,051FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$968Average$969FlexibilityNo cancel feeOn-time76%
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