$347 Cheap Flights from Washington (DCA) to Porto (OPO)
Popular airlines from Ronald Reagan Washington National Airport (DCA) to Porto Airport (OPO)
TAP PortugalTAP Portugal
IberiaIberia
Air CanadaAir Canada
British AirwaysBritish Airways
FinnairFinnair
UnitedUnited
American AirlinesAmerican Airlines
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Cheap Flights from Washington to Porto (DCA-OPO)
Alternative airports near Porto
Prices were available within the past 7 days. Prices and availability are subject to change.
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Washington (DCA) to Porto (OPO) at a glance
Embark on your journey from Washington (DCA) to Porto (OPO) with a range of airlines providing international long-haul flights. Explore options from full-service carriers to discover the itinerary that aligns with your budget, schedule, and travel preferences while you take in the renowned sights and neighborhoods of Porto. Here, you'll find essential details for flights departing from Ronald Reagan Washington National Airport (DCA) to Dr. Francisco de Sa Carneiro Airport (OPO).
- Fastest flight duration: around 8h 30m in-flight, plus roughly 1h 30m layover with one stop
- Route distance: roughly 3,500 miles (5,630 km)
- Flights per week: around 8 departures on average
- Typical fares (one-way): economy tickets often range from $250–$820, depending on seasonality and how far ahead you book
Flights from Ronald Reagan Washington National Airport (DCA) to Dr. Francisco de Sa Carneiro Airport (OPO)
Based on recent traveler bookings, here are the top airlines favored by passengers flying from Washington to Porto, typically opting for one-stop services. Popular layover choices include Newark Liberty International Airport (EWR, around 1 hour 15 minutes), Pierre Elliott Trudeau International Airport (YUL, approximately 3 hours 30 minutes), and Logan International Airport (BOS, about 2 hours 15 minutes). This variety allows you to tailor your itinerary by balancing price, total travel time, and cabin class for the best travel experience.
- United: This comprehensive airline provides a convenient one-stop service, with one-way ticket prices generally falling between $250 and $700. United is responsible for around 70% of the flights on this route, featuring an in-flight duration of 8 hours and 30 minutes and an overall travel time of approximately 9 hours and 45 minutes, including layover.
- TAP Portugal: As a full-service airline, TAP Portugal also offers one-stop flights, with typical one-way fares ranging from $465 to $655. It represents about 10% of the departures on this route, boasting the same in-flight time of 8 hours and 30 minutes and a total journey duration of around 9 hours and 45 minutes, factoring in any layover.
Alternative route from Washington (DCA) to Porto (OPO)
- Washington to Porto (IAD-OPO): Located approximately 23 miles from Ronald Reagan Washington National Airport (DCA), Washington Dulles International Airport (IAD) offers a range of one-way economy fares for this journey, typically between $240 and $790, influenced by the time of year and how far in advance you book. Travelers can expect a one-stop service, frequently with layovers at Humberto Delgado Airport (LIS) and Newark Liberty International Airport (EWR). Major airlines serving this route include TAP Portugal and United, with business class options also available for those seeking a premium experience.
How to find the best prices for flights from Washington (DCA) to Porto (OPO)
Getting some of the best deals on flights from Washington to Porto is all about timing and flexibility. Here are some key tips to help you save:
- Best times to book and fly: cheaper fares are usually available when booking at least two months in advance, which aligns with when most travelers make their reservations. Evening departures from 6 PM to 12 AM tend to be less expensive and are also popular, while flying on Wednesday not only offers lower prices but is also the most favored travel day.
- Set up price alerts: stay updated on price changes by using Expedia's Price Tracker. Receive alerts when fares drop for your selected route.
- Bundle and save: bundle your flight and hotel to save on Expedia, or unlock a hotel deal after booking your flight.*
- Compare flight options: use Expedia's search tool to compare airlines, routes, direct vs. non-direct flights, and flight times. You can also sort by price to find the most affordable options.
- Stay flexible with dates: being open to different travel days can sometimes help you find better prices on flights and hotels.
- Think about luggage: nowadays, it's important to check the airline's baggage policies to find the best value. That may be paying for an additional carry-on bag or booking a ticket with checked luggage included. Either way, double-check your allowance before confirming your booking to avoid excess baggage fees at the airport.
*Members only. Savings vary and are not available on all bundles. Select hotels.
Arriving at Dr. Francisco de Sa Carneiro Airport from Ronald Reagan Washington National Airport
Porto welcomes travelers from Washington with a range of transport options based on price, convenience, and proximity. For departures, Ronald Reagan Washington National Airport is roughly a 10-minute drive (covering about 5 miles) from central Washington. Porto city center is approximately a 10-minute drive (covering about 8 miles) from Dr. Francisco de Sa Carneiro Airport, depending on traffic. Here's how to reach Porto efficiently:
- Hotel transfer: Transfers offer a convenient way to reach your hotel in Porto, with private rides that can be arranged in advance.
- Car rental: Renting a car from Dr. Francisco de Sa Carneiro Airport is a great option if you plan to explore and sightsee beyond the city. Browse cheap car rentals at Dr. Francisco de Sa Carneiro Airport on Expedia.
- Taxi/ride-hailing: Taxis and ride-hailing services may be available from designated pickup areas outside the terminal, check locally on arrival.
- Public transportation: From Dr. Francisco de Sa Carneiro Airport, Aeroporto Station (a metro station) is conveniently located about 0.1 miles away on foot, while Leixoes Seaport (a seaport) is approximately 5.2 miles from the airport by car. If you're planning to cruise, the Port of Leixões Cruise Terminal (a cruise terminal) is about 5.7 miles away by car.
Washington to Porto Flights
The cheapest times to fly from Washington to Porto
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 Porto are during the month of April. You can find some of the cheapest flights from Washington to Porto with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Washington to Porto
Sunday is one of the best days to book for cheap flights from Washington to Porto: 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 Porto
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 Porto in 2026. You can also book with separate airlines for your outbound and return journeys, from $347 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 Porto 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 Porto 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 Porto (OPO-Dr. Francisco de Sa Carneiro) cost?
You can find cheap one-way flights from $347 and cheap return flights $729 Washington, DC (DCA-Ronald Reagan Washington National) to Porto (OPO-Dr. Francisco de Sa Carneiro) with Expedia. One-way flights usually range from $335 to $4656, and return flights typically cost between $877 and $4659. 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 Porto (OPO-Dr. Francisco de Sa Carneiro) 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 Porto (OPO-Dr. Francisco de Sa Carneiro)?
The cheapest month to fly from DCA to OPO is April 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 Porto (OPO-Dr. Francisco de Sa Carneiro)?
Enter DCA to OPO 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 Porto (OPO-Dr. Francisco de Sa Carneiro)?
Virgin Atlantic is one of the cheapest airlines offering connecting flights from Washington, DC (DCA) to Porto (OPO), with round-trip tickets starting from around $991 with a layover in Hartsfield-Jackson Atlanta Intl. (ATL). 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 Porto (OPO-Dr. Francisco de Sa Carneiro)?
To find a cheap flight from Washington, DC (DCA-Ronald Reagan Washington National) to Porto (OPO-Dr. Francisco de Sa Carneiro), 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 Porto (OPO-Dr. Francisco de Sa Carneiro)?
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 Porto (OPO-Dr. Francisco de Sa Carneiro)?
The earliest flight from Ronald Reagan Washington National (DCA) to Porto (OPO) usually departs at around 5:00 AM, operated by American Airlines and Iberia. This seasonal service is active in June, and an early departure allows you to arrive in Portugal with plenty of time to enjoy the day. 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 Porto (OPO-Dr. Francisco de Sa Carneiro)?
The most popular departure times for flights from Washington, DC (DCA) to Porto (OPO) are in the late afternoon, from 3pm to 6pm. About 31% of passengers prefer this time window. Many major carriers, including United Airlines and American Airlines, operate flights during this period. This timing is convenient as it allows you to enjoy your day in DC before heading off to Porto.
How long does it take to fly from Washington, DC (DCA-Ronald Reagan Washington National) to Porto (OPO-Dr. Francisco de Sa Carneiro)?
A flight from DCA to OPO with a layover takes around 10 hours 50 minutes, with the route covering approximately 3,524 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 Porto (OPO-Dr. Francisco de Sa Carneiro)?
You can fly business class between DCA and OPO. Airlines that offer business class service on this route include:
- Delta Air Lines
- American Airlines
- Air Canada
How do I earn miles on a Washington, DC (DCA-Ronald Reagan Washington National) to Porto (OPO-Dr. Francisco de Sa Carneiro) flight with Expedia?
It's easy to earn miles on a Washington, DC (DCA-Ronald Reagan Washington National) to Porto (OPO-Dr. Francisco de Sa Carneiro) 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 Porto from Ronald Reagan Washington National (DCA)?
If you're planning to travel to Porto from Ronald Reagan Washington National (DCA), you can fly into Dr. Francisco de Sa Carneiro (OPO) Some flights may connect through major hubs like Logan Intl. (BOS), John F. Kennedy Intl. (JFK), O'Hare Intl. (ORD) before reaching Porto. 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 Porto (OPO-Dr. Francisco de Sa Carneiro) at the last minute?
Typically, booking a last minute flight from Washington, DC (DCA-Ronald Reagan Washington National) to Porto (OPO-Dr. Francisco de Sa Carneiro) 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 Porto (OPO-Dr. Francisco de Sa Carneiro) flight and hotel package?
Securing a Washington, DC (DCA-Ronald Reagan Washington National) to Porto (OPO-Dr. Francisco de Sa Carneiro) Porto 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 Porto (OPO-Dr. Francisco de Sa Carneiro)?
If you booked your Washington, DC (DCA-Ronald Reagan Washington National) to Porto (OPO-Dr. Francisco de Sa Carneiro) 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.
Travel information
Origin airport | Ronald Reagan Washington National Airport |
|---|---|
Destination airport | Porto Airport |
Distance | 3,523 miles away |
Airlines serving | TAP Portugal, Iberia, Air Canada, British Airways, Finnair, United, American Airlines, KLM, Air France, Delta, JetBlue Airways, SAS |
Popular airline | TAP Portugal |
Roundtrip price | $729 |