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DCA - OPO

$505 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 9/23. 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.
1 adult
0 bags
Tue 6/4
Tue 6/11

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. 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.
In the last 7 days travelers have searched 43,369,418 times on KAYAK, and here is why:

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Cheap flight deals from Reagan-National 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-National 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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
7:30 pm - 3:30 pmDCA-OPO
15h 00m2 stops
6:45 am - 7:15 pmOPO-DCA
17h 30m2 stops
$569Delta
Find Deal
Sun, Aug 18 - Tue, Aug 27
8:15 pm - 3:40 pmDCA-OPO
14h 25m2 stops
6:45 am - 5:22 pmOPO-DCA
15h 37m2 stops
$582KLM
Find Deal
Mon, Aug 19 - Tue, Aug 27
9:00 am - 7:35 amDCA-OPO
17h 35m2 stops
8:15 am - 7:15 pmOPO-DCA
16h 00m2 stops
$744American Airlines
Find Deal
Thu, Oct 3 - Mon, Oct 14
10:30 am - 11:40 amDCA-OPO
20h 10m2 stops
8:15 am - 10:11 pmOPO-DCA
18h 56m2 stops
$783American Airlines
Find Deal
Tue, Sep 3 - Sat, Sep 14
7:15 pm - 9:45 amDCA-OPO
9h 30m1 stop
6:00 am - 10:37 amOPO-DCA
33h 37m2 stops
$795United Airlines
Find Deal
Sun, Aug 18 - Tue, Aug 27
12:35 pm - 7:45 pmDCA-OPO
26h 10m2 stops
11:10 am - 9:46 amOPO-DCA
27h 36m2 stops
$947British Airways
Find Deal
Sat, Aug 3 - Fri, Aug 9
5:30 pm - 11:40 amDCA-OPO
37h 10m2 stops
11:10 am - 9:46 amOPO-DCA
27h 36m2 stops
$959British Airways
Find Deal
Fri, Aug 2 - Fri, Aug 9
7:15 pm - 9:45 amDCA-OPO
9h 30m1 stop
12:35 pm - 7:10 pmOPO-DCA
11h 35m1 stop
$968United Airlines
Find Deal
Mon, May 27 - Wed, Jun 12
2:00 pm - 10:35 amDCA-OPO
15h 35m1 stop
8:55 am - 8:43 pmOPO-DCA
16h 48m2 stops
$1,002TAP AIR PORTUGAL
Find Deal
Tue, Oct 1 - Thu, Oct 17
12:00 pm - 10:35 amDCA-OPO
17h 35m1 stop
10:00 am - 9:29 pmOPO-DCA
16h 29m2 stops
$1,089TAP AIR PORTUGAL
Find Deal
Tue, Sep 24 - Sat, Oct 12

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 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 $422 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $838 and $831 respectively.

How far in advance should I book a flight from Washington, D.C. Reagan-National Airport to Porto?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Washington, D.C. Reagan-National Airport to Porto, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Washington, D.C. Reagan-National Airport to Porto, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 13 days before departure.

Which airlines provide the cheapest flights from Reagan Washington National Airport to Porto?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Reagan Washington National Airport to Porto found by KAYAK users in the last 72 hours was for $569 on Delta, followed by KLM ($582). One-way flight deals have also been found from as low as $505 on American Airlines and from $522 on United Airlines.

Good to know

Low season

November

High season

March

Cheapest flight

$505
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly and prices are also 6% 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 $505 for a one-way ticket and $569 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?

    oneworld, Star Alliance, and SkyTeam 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 $717 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 $1,241 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 5 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 10826 reviews
7.4Food
7.9Comfort
8.2Boarding
8.6Crew
8.0Entertainment
Airline reviews

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

8.0 ExcellentCynthia, May 2024ATL - TYS
Read more about Delta reviews

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

Big plane, long flight, absolutely no leg room and basically non existent air! I am 5”4’ and always travel Main Cabin, I was miserable on this plane and could barely move when we arrived in Cabo due to the cramped leg area!

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

Overall the flights pretty good. The snacks we’re good and they were plenty of them. Both boarding and deplaning went quickly.

Delayed abs delayed Gate crew giving poor info - we are definitely leaving at —- Ultimately to cancel flight after 4+ hours of delays Just cancel it earlier

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

Lots of weather delays that were poorly communicated and managed. I get there are weather delays but they didn’t make it clear what was happening or comfortable on the plane

Everything was on time; the flight attendants and the gate personnel were very pleasant and helpful.

Our second leg to Jackson WY was unable to land due to weather. We were flown back to Dallas after stopping in SLC. We were given hotel rooms and vouchers. We were told that we would be back on the same plane in the morning. Instead we were given a different flight with different seats. Not a good experience. No one knew what was going on.

Perfect flight. On time departure and early arrival. Smooth flight.

Awful! The flight was delayed and we sat on the plane in DCA for an hour because fuel was out in the wrong part of the plane and would not be accessible during flight. So the plane had to be refueled in correct tank. They also allowed someone to get off of the plane. This delayed my six hour flight by an hour and made me miss my connecting flight. I ran to new gate and American Airlines agents new about the delay and even knew that I was trying to make the connection. They knew thru communication with my friend while in flight that I was in the airport and running to the new gate and they still closed the gate and refused to let me on the new flight despite plane still being at the gate. It was horrible and I had to be rebooked on a flight for 24 hours later. This has been a nightmare and if American Airlines can cause customers to be delayed and then have zero empathy as having an on time flight was more important to them than helping a customer who was delayed by no fault of her own, then it's seems that it's not a company that I want to continue to give my loyalty to. I'm so disgusted.

Help was available but timing was bad in my case

It was a horrible snow storm, but updates were inconsistent and the app never displayed a remotely accurate time or gate until very close to boarding.

I thought Miami's airport was very disorganized during the Boarding.

Very efficient boarding - other airlines could learn from them. Friendly, efficient crew. Red eye flight, so dinner meal was irrelevant. Breakfast could have been more substantial. Seats reasonably comfy.

People seated in exit rows should have designated overhead space

I have been flying internationally for most of like. My first trip with TAP- wonderful! I look forward to flying with them more frequently in the future!

Larger seats on this plane made the ride reasonably comfortable. Our next flight, from Lisbon to Copenhagen, was inconsiderately tight and stressful. The seats were smaller, space between rows was very limited (no button or mechanism to even slightly incline anyone’s seat), and leg-cramping under the seat in front. Just like sardines in a can. Really felt for all the tall Danes on the flight. Their knees were pressed against the seat in front throughout the flight.

Flight was 2+ hrs late boarding. Delay updates were nonexistent. Boarding Gate change was by word of mouth.

The plane was modern and clean. TAP staff at the airport as well as the flight crew were professional, friendly, and helpful. Overall, a great experience.

The airline made last minute changes to our business class seats splitting our family of 4 with young children who had pre-booked a row of 4 seats. The seat was also dirty and sticky. Our pre-ordered child meals were also not available. :(

Awful experience all around, misleading booking led to disgraceful baggage charge at gate. Tiny uncomfortable seats with little drinks served in small paper cups filled halfway. Difficult to use bathrooms the whole flight and now on the way back we’re stuck in Lisbon a day later because of a diversion on our connecting flight, I will never fly this airline again.

I suspect that there was an item pilfered from my bag at the TAP automated check-in counter on March 26th at Heathrow Airport around 11:30am. I think that the employee assisting me with my bags took something out of it when I was not paying attention because today, March 27th there is a notebook missing. Please check the camera to see if indeed this occurred. My description: Male, African Decent, 5'8, 180lbs medium build, wearing trousers and a jacket. Employee description: Female, Indian Decent (guessing) 5'7, slight build. Flight 1359, London to Lisbon.

I liked the friendly crew and desk staff, all very helpful. I was surprised and a little annoyed on my outbound flight from LGW to MCO as I had prepaid and booked my seat, which was all correct at check in on my boarding pass. when I got on the plane someone was in my seat ! I was moved to another seat. The food choice is quite limited and I feel that an option of a muffin for breakfast snack would be welcomed, not everyone wants egg or bacon wrap. The choice of entertainment is good, plenty to keep you busy on a long haul flight. I liked the option offered to have the cabin bag checked into the hold, it saved me as an older, lone traveller lifting my case into the overhead locker or finding there was no space.

Boarding process was chaotic and disorganized. The plane needs updating in the interior. Things are broken, worn out, and dated

good service from crew. Before the would have an option between cookies or nuts as snacks.. Now, there are only cookies. too bad. People who can not have sugar don't have a choice.

I like the team but I don't like the food you provided with money. I want free food and free water.

My wife and I paid for seat selection to be together. My wife and I were on separate rows and the excuse they gave was they changed the plane. Also, I have celiac and asked for a gluten free meal in the ticket profile which they did not have.

I’m hoping for WiFi included. Everything else was very good

Rude security cunts. However the lady that issued my boarding ticket when I was flying back from New York was lovely & helpful!!

Appalling! The flight was delayed by 3.5 hours and the American Airlines staff at the airport where nit very helpful. Once boarded, the flight crew were unhelpful, the food was poor and the aircraft was tatty.

The food is really eco only level. Breakfast was shameful. I am considering to stop flying with Iberia. Business prices are as expensive as other companies with much better service.

I called prior to flying to confirm our baggage allowance which was 5 bags. On our outbound flight thee were no problems. On the return flight we were charged for each bag totaling $400! We are working with customer service to resolve the issue.

We missed the flight to Barcelona because the flight from Baltimore was delayed. We flew on Vueling VW6653. Our luggage didn’t arrive. Please help us get our luggage. We are staying at Hotel Gran Via in Barcelona

The seats were tiny, being of a fairly petite build, I don’t usually expect to feel crammed and cramped in a seat, but I definitely was on this flight. I couldn’t even bend over to get anything out from under the seat in front and getting up to go to the bathroom at night with the seat backs reclined was nearly impossible. I had to do gymnastics to get over and out. For an airline that does long flights overnight, it’s kind of ridiculous.

Not connecting flights. Missed my flight from Dublin to Liverpool because I arrived at Dublin one hour too late. For this mistake, they offered me a flight from Dublin to Manchester. Thats great and all, but I waste time and money to commute to Liverpool. Be sure to check the time of your connecting flights, because they sure don’t when they sell it to you

Excellent! Great flight attendants, good food (in business class, at least), very comfortable. Touchscreen and remote wasn’t great.

In economy and food was ok, but with limited leg space (and I was in a 2 seat configuration) it was difficult to eat with a tiny seat tray. I spilt wine on my trousers. First time on British Air (I usually fly Turkish Air) and in a 777. Heathrow was pleasant but changing terminals awkward.

Starting with the flight Cairo to London the plain was so poor no entertainment at all uncomfortable seats although it’s 5 hours long,then an American airline plain took me from London to Miami it was a bad experience the crew most of flight time not available and they asked us to help our selves for any snacks if we need. From Miami to London actually was perfect flight with a huge plain and perfect crew but from London to Cairo was horrible plain with stiff fixed seats not movable no entertainment or wi fi very poor Menu which is unacceptable for a business class

I've done hundreds of flights in my life, and this flight was one of the best I've ever taken, From beginning to end, everything went smoothly, professionally, and with a smile and friendly attitude from all employees I interacted with. The food was delicious (and free), as were the drinks. There was just a genial and effective way in the way that British Airways organized the flight -that reminded of days in the 70's, 80's, and 90's, when flying was a fun, and exciting adventure. I enjoyed and had confidence in the abilities of the flight crew, I'll be flying British Airways several more times this summer. Thank you so much for the great experience! Cheryl Olso

My baggage did not arrived with me. Took 3 days to get it after so may calls and follow up

Terrible! I missed my flight to my final destination and British airlines and American Airlines keep pointing fingers on each other’s. Nobody wants to take responsibility

Terrible. Flight was 3 hours delayed and I missed my other flight to my final destination

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.
9/23Mon
2 stopsAmerican Airlines
18h 35mDCA-OPO
$505
7/21Sun
1 stopUnited Airlines
9h 30mDCA-OPO
$522
9/29Sun
2 stopsAir Canada
20h 05mDCA-OPO
$534
5/15Wed
2 stopsAir Canada
30h 31mDCA-OPO
$535
7/21Sun
2 stopsDelta
15h 00mDCA-OPO
$539
8/4Sun
2 stopsDelta
15h 10mDCA-OPO
$551
9/23Mon
1 stopUnited Airlines
9h 30mDCA-OPO
$572
9/7Sat
1 stopTAP AIR PORTUGAL
10h 20mDCA-OPO
$665
9/29Sun
1 stopTAP AIR PORTUGAL
15h 35mDCA-OPO
$771
5/23Thu
3 stopsIberia
33h 05mDCA-OPO
$1,510

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Reagan Washington National Airport - Porto Flights

Departure:

Reagan Washington National Airport (DCA)United States

Destination:

Porto (OPO)Portugal

Return flight deals:

Porto - Reagan Washington National Airport

Cabin classes:

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