DCA - OPO

$557 Find Cheap Flights from Reagan Washington National Airport to Porto

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Reagan-National to Porto departing on 5/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Search hundreds of travel sites at once for deals on flights to Porto

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Porto, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Porto, as well as popular online travel agencies
In the last 7 days travelers have searched 41,299,237 times on KAYAK, and here is why:

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Cheap Flight Deals from Reagan Washington National Airport to Porto (DCA-OPO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reagan Washington National Airport to Porto that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Reagan-National to Porto

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Reagan-National to Porto.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:00 am - 7:20 pmDCA-OPO
32h 20m2 stops
8:10 pm - 9:00 pmOPO-DCA
29h 50m3 stops
Sun, Jan 19 - Mon, Jan 27
4:10 pm - 7:20 pmDCA-OPO
22h 10m2 stops
8:10 pm - 9:00 pmOPO-DCA
29h 50m3 stops
Sun, Jan 19 - Mon, Jan 27
11:10 am - 11:35 amDCA-OPO
19h 25m2 stops
6:00 am - 3:29 pmOPO-DCA
38h 29m2 stops
$696United Airlines
Find Deal
Sun, Jan 19 - Mon, Jan 27
1:40 pm - 7:40 amDCA-OPO
13h 00m2 stops
8:20 am - 10:41 pmOPO-DCA
19h 21m2 stops
$742American Airlines
Find Deal
Thu, Jan 16 - Tue, Jan 21
12:00 pm - 10:30 amDCA-OPO
18h 30m2 stops
11:25 am - 10:29 pmOPO-DCA
16h 04m2 stops
$783Delta
Find Deal
Sat, Mar 22 - Mon, Mar 31
12:40 pm - 4:00 pmDCA-OPO
22h 20m2 stops
8:40 pm - 4:26 pmOPO-DCA
24h 46m2 stops
$930Iberia
Find Deal
Fri, Feb 21 - Sat, Mar 1
6:50 pm - 3:30 pmDCA-OPO
15h 40m2 stops
11:25 am - 10:29 pmOPO-DCA
16h 04m2 stops
$934Delta
Find Deal
Sun, Mar 30 - Sun, Apr 6
12:55 pm - 7:40 amDCA-OPO
13h 45m2 stops
8:15 am - 9:30 pmOPO-DCA
18h 15m2 stops
$1,002American Airlines
Find Deal
Tue, Jan 28 - Sun, Apr 27
5:49 pm - 11:45 amDCA-OPO
12h 56m2 stops
8:20 am - 7:14 pmOPO-DCA
15h 54m2 stops
$1,042Iberia
Find Deal
Tue, Jan 7 - Tue, Jan 21
11:10 am - 3:10 pmDCA-OPO
23h 00m2 stops
6:00 am - 8:57 amOPO-DCA
31h 57m2 stops
$1,085United Airlines
Find Deal
Thu, Jan 2 - Thu, Jan 23

Flights from Reagan-National to Porto - Travel Insights & Trends

Get data-powered insights and trends into flights from Reagan-National to Porto to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Washington, D.C. Reagan-National Airport to Porto?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Reagan-National Airport to Porto, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Washington, D.C. Reagan-National Airport to Porto is January, where tickets cost $432 (return) on average. On the other hand, the most expensive months are May and June, where the average cost of round-trip tickets is $836 and $834 respectively.

Good to know

Low season

September

High season

March

Cheapest flight

$557
Best time to beat the crowds but there is an average 35% increase in price.
Most popular time to fly and prices are also 27% lower on average.
Flight from Reagan Washington National Airport to Porto

When to book flights from Reagan-National to Porto

Are your dates flexible? Find out the best times to travel from Reagan-National to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Reagan Washington National Airport to Porto flights

  • What is the cheapest flight from Washington, D.C. Reagan-National Airport to Porto?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Reagan-National Airport to Porto was $557 for a one-way ticket and $621 for a round-trip.

  • Do I need a passport to fly between Reagan Washington National Airport and Porto?

    Yes, you’ll need a passport to travel to Porto from Reagan Washington National Airport.

  • Which airports will I be using when flying from Reagan Washington National Airport to Porto?

    When flying out of Reagan Washington National Airport you will be using Washington, D.C. Reagan-National. You will be landing at Porto, also known as Porto.

  • Which aircraft models fly most regularly from Reagan Washington National Airport to Porto?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Reagan Washington National Airport to Porto?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Reagan Washington National Airport and Porto, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to Porto, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Porto are Delta and United Airlines. With an average price for the route of $839 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $1,076 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Reagan Washington National Airport to Porto?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Reagan Washington National Airport to Porto.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Reagan Washington National Airport to Porto?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Reagan Washington National Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Reagan Washington National Airport to Porto?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Porto with an airline and back to Reagan Washington National Airport with another airline. Booking your flights between Reagan Washington National Airport and OPO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Reagan Washington National Airport to Porto?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Porto from Reagan Washington National Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 4 airlines serving from Reagan-National to Porto

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Porto. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Reagan-National to Porto? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 8601 reviews
8.6Crew
7.9Entertainment
8.2Boarding
8.0Comfort
7.3Food
Airline reviews

I was with one of the last zones to board. It was kind of annoying to finally get called to board and my whole section was already on the plane. Clearly they boarded with previous zones. So by the time I got on board, there were no spaces for my luggage above my head. I had to put my luggage 4+ rows behind me, which meant that I had to wait even longer to get off the plane, since I had to wait for those rows to clear the aisle before I could retrieve my luggage and exit the plane. This also held up the plane cleaners, as they couldn't service my row until I cleared it, so they were all standing there waiting for me, while I'm standing there waiting for the other passengers to clear the aisle. Anyways, I wasn't in a rush this time, so I just waited, but I could see that being a problem in the future. Now, I could have checked my luggage, of course, but coincidentally, a friend of mine on the same flight got their luggage damaged (wheel completely knocked off) and was told by the Baggage Attendant in the airport that Delta doesn't "cover wheel damage" on luggage. This was disappointing to hear. I'm glad I didn't check mine through. If it were my luggage, I'd be highly frustrated to hear that. It makes me not want to check my luggage in the future.

8.0 ExcellentMelodii, Dec 2024ATL - MSY
Read more Delta reviews

I was with one of the last zones to board. It was kind of annoying to finally get called to board and my whole section was already on the plane. Clearly they boarded with previous zones. So by the time I got on board, there were no spaces for my luggage above my head. I had to put my luggage 4+ rows behind me, which meant that I had to wait even longer to get off the plane, since I had to wait for those rows to clear the aisle before I could retrieve my luggage and exit the plane. This also held up the plane cleaners, as they couldn't service my row until I cleared it, so they were all standing there waiting for me, while I'm standing there waiting for the other passengers to clear the aisle. Anyways, I wasn't in a rush this time, so I just waited, but I could see that being a problem in the future. Now, I could have checked my luggage, of course, but coincidentally, a friend of mine on the same flight got their luggage damaged (wheel completely knocked off) and was told by the Baggage Attendant in the airport that Delta doesn't "cover wheel damage" on luggage. This was disappointing to hear. I'm glad I didn't check mine through. If it were my luggage, I'd be highly frustrated to hear that. It makes me not want to check my luggage in the future.

The dear was very limited in space. I could put my water bottle in seat basket. Also, there was no inflight entertainment in the delta app?

Typically I give delta excellent reviews. Our flight was delayed 2hrs, I was one of the fortunate ones who were able to get to my connecting flight. Also, annoying that on the connecting flight boarding personnel make me put away a small bag into my carryon. It small enough to put in back pocket seat, why hold me and the line up to just push it into my carryon.

Logan airport construction meant that boarding was chaotic crowded and delayed

Everything was great. Great service, excellent communication, and early arrival

We were forced to wait nearly 50 additional minutes before leaving the terminal.

Free Wi-Fi is good. That’s all - food mediocre, unfriendly crew, poor communication after trying to file a claim for my lost bag, which Delta didn’t even know was lost until I told them.

Delta flight attendants poorly managed the boarding process and overhead storage. My bag was checked last minute and no claim ticket was provided. My bag is now lost. Complete incompetence by all flight crew involved.

Inexpensive, got an exit row aisle aeat with no middle passenger, bought a great breakfast sandwich, flight comfortable & arrived ahead of schedule.

Customer service at the gate in the flight was exceptional. On time. Aircraft and seat was decent. Thanks Delta. 💗

We arrived early and finally made it to our gate almost an hour after.

The reason I don’t fly United. No in seat entertainment for a long flight and inconsistent WiFi and entertainment available from my device.

The flying experience was great. The flight was on time with no boarding issues during a peak travel period. The short cut baggage drop and process was not smooth and efficient at Dulles.

Fast checkin with the self serve terminal, good communication at the boarding gate.

Very friendly staff. The flight was on time. Need a bit heavy covers/blankets. It can get colder with a thin blanket.

The plane was clean. The staff was excellent. The flight attendants were very good. Enjoyable flight. Overall. The seats in the back are too small but, will always be.

This was a 5 hour flight with no entertainment and with a snack being provided (pretzels and fruit bar), which are both high in carbs and sugar. Nuts would have been a better choice.

Never nice, United Express partners always do an amazing job.

Everything was perfect except the pad at the top of the seat back. It pushes my head forward in a very uncomfortable position and it is not removable.

Good plane, crew, and flight. Boarding was a bit chaotic. Bathrooms were unacceptable. United DESPERATELY needs a new terminal at IAD.

Other than being delayed 5.5 hours and having to get a hotel because I missed my connecting flight, it was an okay flight. No in-flight Wi-Fi or entertainment.

Flight areas delayed 3 hours , train in the airport didn’t work

Flight attendant walked away once they landed and we were forced to wait another hour after an already 3hr delay.

No overhead space so all carryons were checked. No internet.

The flight was on time and everything went very smoothly.

A thousand choices for movies and nothing to watch. I avoid 'R' rated shows and others with violence and sexual content, which results in a handful of flicks to view and I have them already.

I think I paid for an extra legroom seat and to be honest, there was not a lot of space available for my not very long legs. The flight was totally full and the staff did everything possible to meet the needs of all passengers. My only concern was for the size and spacing of my seat.

Check bag location is full of rude employees who are unwilling to assist with issues after talking to AA on the phone and relaying messages. The boarding was good. While on the flight it got really hot. Asked flight attendant if there’s a way to drop the temp and make it more comfortable as we are flying from DC to Miami so flying from cold to hot weather. No changes made. Stayed hot and uncomfortable on the plane. When asked again about the AC being down the flight attendant said no the WiFi was down but not the AC. I mentioned it was still hot. No changes.

No food, no entertainment. But the flight was really short so maybe they had to skip drinks. I was able to board early ONLY because I am old and decrepit and they let me pre-board. I RESENT your dumping us into category 9 if we do not pay up. And when I paid for a seat I was STILL given 9. The pre-boarding helps. THIS flight was exceptionally smooth, please congratulate the pilots.

On time (actually a little early). Was a good and short flight!

Its a bus taking you on and off the plane so if you have big luggage … more muscles needed

The connection required us to travel from terminal A to terminal E with very little time in between flights. While waiting in line, we were called to the service desk to provide our passports. We provided our passports at time of check in, assuming that American Airlines doesn’t communicate well with Iberia, this was a headache.

The staff on our flight from Charlotte to Boston were very friendly.

Alaska located my mother, aware that she had mobility issues and they seated her closer to the door. She and I were seated together so I felt more secure to be able to assist her. The desk attendant reviewed what steps to take when boarding. Allowed us to board first, we loved that. I was allowed time to help her board slowly, seat her, put all her things in their place before the crowds came through. These small details made me want to travel Alaska more when possible.

HORRIBLE. 3 hours delayed. Crew did not communicate properly and was rude to passengers enquiring. Delay caused multiple passengers to miss connections.

1. The flight was late and I did jot get the seat I paid for. I paid for extra leg room and a window seat. I got a middle seat without extra leg room. 2. The customer service representative was not helpful. Explanation: many passengers arrived to the service desk in Madrid near baggage claim to rebook our flights. (We all missed our connecting flight due to delays in JFK). Upon arrival, ghere was one service agent and one line-business. After about 25-30 minutes the agent left and we could see her making a phone call. After about 5 more minutes, 2 other agents arrived. During our wait, another line formed for main cabin customers. We were told to go to the other line, even after waiting around 30-40 minutes. This would have been disastrous for ghose of us who had been waiting for so long. The agents need more training.

I fly to BNA with BA often and this was the worst experience. Arriving in nashville, check in was 1.5 hrs long in the queue with 1 very slow girl at the desk. When more staff came they only catered to priority customers. When all priority were checked in, instead of filtering from the top of the line they took the people from the end, the people who had been queuing for 5 mins vs almost 2 hours. The flight was delayed, for no good reason other than the staff took forever to do anything. At the gate there was zero organisation, we asked the crew what the delay was and they confirmed it wasn't the plane and it was the ground team. One of the flight attendants was one of the rudest I have EVER encountered, that man clearly hated his job, and people...I wish I'd got his name. Food was disgusting, seating was cramped. I've no idea what's changed in the last year but I'm truly shocked.

Booked Economy Premium the 3 seats with my daughters and I, the seats should have been able to tilt back but it only one worked. the crew said they would report it but didnt seem both about our comfort on the return journey.#

Better pillow cases in economy. I didn’t like that I couldn’t pick my seats since I booked with Kayak.

Room between seats unacceptable. If person front of you dropped down there seat even a little you could not be even a little comfortable. No sleep on flight

Book cheap flights from Washington, D.C. to Porto

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Washington, D.C. to Porto found on KAYAK in the last 72 hours.
5/25Sun
2 stopsScandinavian Airlines
16h 40mDCA-OPO
$557
5/25Sun
1 stopTAP AIR PORTUGAL
17h 05mDCA-OPO
$603
5/16Fri
2 stopsTAP AIR PORTUGAL
13h 35mDCA-OPO
$794
5/16Fri
1 stopTAP AIR PORTUGAL
22h 40mDCA-OPO
$998
5/25Sun
3 stopsUnited Airlines
25h 00mDCA-OPO
$1,019

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Last minute flights from Reagan-National to Porto

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Washington, D.C. to Porto that are departing in the next 10 days.
12/21Sat
multi-stopUnited Airlines
35h 45mDCA-OPO
1/11Sat
multi-stopUnited Airlines
42h 57mOPO-DCA
$2,526
12/25Wed
multi-stop
18h 17mDCA-OPO
1/4Sat
multi-stop
17h 31mOPO-DCA
$2,546
12/22Sun
multi-stopBritish Airways
18h 57mDCA-OPO
1/3Fri
multi-stopBritish Airways
15h 36mOPO-DCA
$2,802
12/21Sat
multi-stopTAP AIR PORTUGAL
12h 10mDCA-OPO
1/11Sat
multi-stopTAP AIR PORTUGAL
18h 45mOPO-DCA
$2,936
12/21Sat
multi-stopTAP AIR PORTUGAL
17h 50mDCA-OPO
1/11Sat
multi-stopTAP AIR PORTUGAL
18h 45mOPO-DCA
$2,949
12/23Mon
multi-stopUnited Airlines
39h 15mDCA-OPO
12/27Fri
multi-stopUnited Airlines
22h 59mOPO-DCA
$2,953
12/23Mon
multi-stopAir France
36h 08mDCA-OPO
12/27Fri
multi-stopAir France
16h 12mOPO-DCA
$3,009
12/23Mon
multi-stopAir Canada
15h 50mDCA-OPO
12/27Fri
multi-stopAir Canada
31h 57mOPO-DCA
$3,071
12/23Mon
multi-stopTAP AIR PORTUGAL
10h 45mDCA-OPO
12/27Fri
multi-stopTAP AIR PORTUGAL
37h 59mOPO-DCA
$3,177
12/21Sat
multi-stopIberia
32h 51mDCA-OPO
1/4Sat
multi-stopIberia
19h 20mOPO-DCA
$3,869

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Everything you need to know for your flight from Reagan-National to Porto

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