$420 Cheap Flights from Washington (DCA) to Lisbon (LIS)

View $420 flight on Mon, Aug 31, 2026Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Humberto Delgado Airport (LIS)

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Cheap Flights from Washington to Lisbon (DCA-LIS)

Prices were available within the past 7 days and start at $420 for one-way flights and $635 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Sat, Nov 14 - Mon, Nov 23
DCA
Washington
LIS
Lisbon
$635 Roundtrip, found 3 days ago
$635
Roundtrip
found 3 days ago
Select Scandinavian Airlines flight, departing Sat, Nov 14 from Washington to Lisbon, returning Mon, Nov 23, priced at $635 found 3 days ago
Scandinavian Airlines
Wed, Apr 8 - Wed, Apr 15
DCA
Washington
LIS
Lisbon
$648 Roundtrip, found 2 days ago
$648
Roundtrip
found 2 days ago
Select Scandinavian Airlines flight, departing Wed, Apr 8 from Washington to Lisbon, returning Wed, Apr 15, priced at $648 found 2 days ago
Scandinavian Airlines
Wed, Apr 8 - Mon, Apr 13
DCA
Washington
LIS
Lisbon
$672 Roundtrip, found 1 hour ago
$672
Roundtrip
found 1 hour ago
Select Scandinavian Airlines flight, departing Wed, Apr 8 from Washington to Lisbon, returning Mon, Apr 13, priced at $672 found 1 hour ago
Scandinavian Airlines
Mon, Apr 6 - Mon, Apr 13
DCA
Washington
LIS
Lisbon
$688 Roundtrip, found 1 day ago
$688
Roundtrip
found 1 day ago
Select Scandinavian Airlines flight, departing Mon, Apr 6 from Washington to Lisbon, returning Mon, Apr 13, priced at $688 found 1 day ago
Scandinavian Airlines
Wed, Apr 8 - Sat, Apr 18
DCA
Washington
LIS
Lisbon
$702 Roundtrip, found 1 day ago
$702
Roundtrip
found 1 day ago
Select Scandinavian Airlines flight, departing Wed, Apr 8 from Washington to Lisbon, returning Sat, Apr 18, priced at $702 found 1 day ago
Scandinavian Airlines
Wed, Apr 8 - Sun, Apr 12
DCA
Washington
LIS
Lisbon
$702 Roundtrip, found 2 days ago
$702
Roundtrip
found 2 days ago
Select Scandinavian Airlines flight, departing Wed, Apr 8 from Washington to Lisbon, returning Sun, Apr 12, priced at $702 found 2 days ago
United
Mon, Nov 23 - Wed, Nov 25
DCA
Washington
LIS
Lisbon
$760 Roundtrip, found 4 days ago
$760
Roundtrip
found 4 days ago
Select United flight, departing Mon, Nov 23 from Washington to Lisbon, returning Wed, Nov 25, priced at $760 found 4 days ago
Delta
Sun, Apr 26 - Fri, May 8
DCA
Washington
LIS
Lisbon
$796 Roundtrip, found 1 day ago
$796
Roundtrip
found 1 day ago
Select Delta flight, departing Sun, Apr 26 from Washington to Lisbon, returning Fri, May 8, priced at $796 found 1 day ago
Air Canada
Tue, Dec 1 - Tue, Dec 8
DCA
Washington
LIS
Lisbon
$799 Roundtrip, found 1 day ago
$799
Roundtrip
found 1 day ago
Select Air Canada flight, departing Tue, Dec 1 from Washington to Lisbon, returning Tue, Dec 8, priced at $799 found 1 day ago
British Airways
Tue, Dec 1 - Tue, Dec 8
DCA
Washington
LIS
Lisbon
$805 Roundtrip, found 1 day ago
$805
Roundtrip
found 1 day ago
Select British Airways flight, departing Tue, Dec 1 from Washington to Lisbon, returning Tue, Dec 8, priced at $805 found 1 day ago

Alternative airports near Lisbon

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Humberto Delgado LIS. Cheapest option available. Flights from $1,517
LIS
Humberto Delgado
Cheapest
Flights from $1,517

Find the cheapest month to fly from Washington (DCA) to Lisbon (LIS)

November is typically the cheapest month to fly

From $503 - $1,478 per traveler.
Flights from Washington (DCA) to Lisbon (LIS)
Origin airport
Ronald Reagan Washington National
Destination airport
Humberto Delgado
Airlines serving
Air Canada, Air France, American Airlines, British Airways, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, LOT-Polish Airlines, Scandinavian Airlines, TAP Portugal, United, Virgin Atlantic
Roundtrip price
$634
Distance
3565 mi

Washington to Lisbon Flights

The cheapest times to fly from Washington to Lisbon

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Lisbon are during the month of November. You can find some of the cheapest flights from Washington to Lisbon with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Lisbon

Sunday is one of the best days to book for cheap flights from Washington to Lisbon: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Lisbon

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Lisbon in 2026. You can also book with separate airlines for your outbound and return journeys, from $420 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Lisbon flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Lisbon airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Washington, DC (DCA-Ronald Reagan Washington National) to Lisbon (LIS-Humberto Delgado) cost?
You can find cheap one-way flights from $420 and cheap return flights from $635 Washington, DC (DCA-Ronald Reagan Washington National) to Lisbon (LIS-Humberto Delgado) with Expedia. One-way flights typically cost between $568 and $2333, and return flights often range between $1007 and $4409. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Washington, DC (DCA-Ronald Reagan Washington National) to Lisbon (LIS-Humberto Delgado) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Washington, DC (DCA-Ronald Reagan Washington National) to Lisbon (LIS-Humberto Delgado)?
The cheapest month to fly from DCA to LIS is November when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Washington, DC (DCA-Ronald Reagan Washington National) to Lisbon (LIS-Humberto Delgado)?
Enter DCA to LIS and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Washington, DC (DCA-Ronald Reagan Washington National) to Lisbon (LIS-Humberto Delgado)?
Air Europa is one of the cheapest airlines offering connecting flights from DCA to LIS, with round-trip tickets starting from around $1,383.93 with a layover in John F. Kennedy Intl. (JFK). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Washington, DC (DCA-Ronald Reagan Washington National) to Lisbon (LIS-Humberto Delgado)?
To find a cheap flight from Washington, DC (DCA-Ronald Reagan Washington National) to Lisbon (LIS-Humberto Delgado), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Washington, DC (DCA-Ronald Reagan Washington National) to Lisbon (LIS-Humberto Delgado)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Washington, DC (DCA-Ronald Reagan Washington National) to Lisbon (LIS-Humberto Delgado)?
The earliest flight from Washington, DC (DCA) to Lisbon (LIS) usually departs at around 6:00 AM local time, operated by Air Canada. This is a seasonal service active in July, giving you an early start to explore Lisbon. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Washington, DC (DCA-Ronald Reagan Washington National) to Lisbon (LIS-Humberto Delgado)?
The most popular departure times for flights from Washington, DC (DCA) to Lisbon (LIS) are in the late afternoon, from 3pm to 6pm. About 46% of passengers prefer this time window. Many major carriers, including Delta Airlines, American Airlines, and United Airlines, offer flights during this window. This timing is popular because it allows you to maximize your day in DC before heading to Lisbon.
How long does it take to fly from Washington, DC (DCA-Ronald Reagan Washington National) to Lisbon (LIS-Humberto Delgado)?
Flying from DCA to LIS with a connection usually takes about 10 hours 50 minutes, traveling roughly 3,566 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Washington, DC (DCA-Ronald Reagan Washington National) to Lisbon (LIS-Humberto Delgado)?
Business class is available on flights from DCA to LIS. Airlines that offer business class service on this route include:

  • American Airlines
  • Delta Air Lines
  • Air Canada
  • JetBlue Airways

How do I earn miles on a Washington, DC (DCA-Ronald Reagan Washington National) to Lisbon (LIS-Humberto Delgado) flight with Expedia?
It's easy to earn miles on a Washington, DC (DCA-Ronald Reagan Washington National) to Lisbon (LIS-Humberto Delgado) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Lisbon from Ronald Reagan Washington National (DCA)?
From Ronald Reagan Washington National (DCA), you can fly into Humberto Delgado (LIS) to reach Lisbon. Some flights may connect through major hubs like John F. Kennedy Intl. (JFK), Logan Intl. (BOS), O'Hare Intl. (ORD) before reaching Lisbon. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Washington, DC (DCA-Ronald Reagan Washington National) to Lisbon (LIS-Humberto Delgado) at the last minute?
Typically, booking a last minute flight from Washington, DC (DCA-Ronald Reagan Washington National) to Lisbon (LIS-Humberto Delgado) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Washington, DC (DCA-Ronald Reagan Washington National) to Lisbon (LIS-Humberto Delgado) flight and hotel package?
Securing a Washington, DC (DCA-Ronald Reagan Washington National) to Lisbon (LIS-Humberto Delgado) Lisbon Vacation Packages is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington, DC (DCA-Ronald Reagan Washington National) to Lisbon (LIS-Humberto Delgado)?
If you booked your Washington, DC (DCA-Ronald Reagan Washington National) to Lisbon (LIS-Humberto Delgado) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

*Flight schedules are subject to change.

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*Available to One Key members.