DCA - OPO

$475 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 1/25. 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 46,646,933 times on KAYAK, and here is why:

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

 
These are the cheapest deals for flights from Reagan-National to Porto currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. 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
11:10 am - 11:15 amDCA-OPO
19h 05m2 stops
6:00 am - 7:57 pmOPO-DCA
18h 57m2 stops
$612Air Canada
Find Deal
Tue, Feb 18 - Tue, Feb 25
11:10 am - 11:15 amDCA-OPO
19h 05m2 stops
7:30 pm - 9:00 pmOPO-DCA
30h 30m2 stops
Wed, Feb 19 - Tue, Feb 25
12:55 pm - 7:40 amDCA-OPO
13h 45m2 stops
8:20 am - 7:14 pmOPO-DCA
15h 54m2 stops
$623Iberia
Find Deal
Mon, Jan 20 - Tue, Jan 28
11:35 am - 10:55 amDCA-OPO
18h 20m2 stops
6:00 am - 11:23 pmOPO-DCA
22h 23m2 stops
$633Delta
Find Deal
Sun, Jan 12 - Tue, Jan 21
5:49 pm - 4:00 pmDCA-OPO
17h 11m2 stops
12:25 pm - 10:41 pmOPO-DCA
15h 16m2 stops
$673Iberia
Find Deal
Fri, Jan 17 - Tue, Jan 28
11:35 am - 10:50 amDCA-OPO
18h 15m2 stops
6:15 am - 11:45 pmOPO-DCA
22h 30m2 stops
$683Delta
Find Deal
Fri, Jan 10 - Fri, Jan 17
6:59 am - 3:10 pmDCA-OPO
27h 11m2 stops
12:30 pm - 10:29 amOPO-DCA
50h 59m2 stops
$771United Airlines
Find Deal
Sun, Jan 5 - Sun, Jan 12
12:29 pm - 10:10 amDCA-OPO
17h 41m2 stops
10:00 am - 8:49 amOPO-DCA
27h 49m2 stops
$858TAP AIR PORTUGAL
Find Deal
Tue, Mar 18 - Tue, Apr 8
11:22 am - 10:10 amDCA-OPO
18h 48m2 stops
8:55 am - 8:59 pmOPO-DCA
16h 04m2 stops
$859TAP AIR PORTUGAL
Find Deal
Tue, Mar 18 - Wed, Mar 26
6:00 pm - 3:10 pmDCA-OPO
40h 10m2 stops
12:30 pm - 7:57 pmOPO-DCA
36h 27m2 stops
$958United Airlines
Find Deal
Sat, Jan 4 - Sat, Jan 11

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 $423 on average. On the other hand, the most expensive months are May and June, where the average cost of tickets is $837 and $830 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 1 week before departure. For the absolute cheapest price, our data suggests you should book 89 days before departure.

Good to know

Low season

September

High season

March

Cheapest flight

$475
Best time to beat the crowds but there is an average 43% increase in price.
Most popular time to fly and prices are also 23% 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 $475 for a one-way ticket and $612 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?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Reagan Washington National Airport and Porto, with oneworld 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 8755 reviews
7.9Entertainment
7.9Comfort
7.3Food
8.2Boarding
8.5Crew
Airline reviews

I sat in comfort plus. It was fine. Seats were comfortable. I got drinks and snacks.

8.0 ExcellentAndrew, Nov 2024MCO - LGA
Read more Delta reviews

I sat in comfort plus. It was fine. Seats were comfortable. I got drinks and snacks.

Crew was nice. Flight was timely. Seats could be better as well as the food considering it’s first class.

Left on time and arrived early this extending our 31 minute transfer. Bags made it also!

Good and consistent Printer in lounge did not work for me :(

Most of my discomfort was going through TSA. However, the Delta seats had inadequate leg room and I tried my very best to connect to the wi-fi and it was a cumbersome process that finally gave me the info that I needed to sign in AFTER I had completed the flight...Why make it so difficult to use? That said I really really appreciate the pilot taking a little extra time to avoid a bad storm area and both landings in Atlanta and Orlando were flawless to my delight!!!

Delayed in taking off because no flight crew. The in seat entertainment was working properly.

All fine save for the abominable catering. Really gone downhill. We found it all inedible.

I upgraded to first class only to find out that I still had no access to the sky lounge without a sky miles card or AmEx (something that should be emphasized outside of the fine print!) Also, no food or drink service provided during the flight, so I basically paid 4x more just for “free” checked baggage and a bigger seat. Not worth it.

I appreciated friendly service from check-in, to boarding, to in-flight amenities! Attendants were accommodating and helpful. Thank you! Elaine

Delta was really good about being transparent with why we were delayed it’s just that’s the plane was really old and outdated and a lot of the comfort and amenities we know Delta to have did not shine through

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.

United Airlines changed my flight 5 hours before I arrived at the airport. This messed up my entire day that I arrived in Japan.

Being stick waiting for gate at ORD cause me to almost miss my connecting flight…being deaf United made no no effort to keep me updated as I couldn’t hear the PA

The Economy Plus rows weren’t as roomy as expected, and the meal service left a lot to be desired for.

United ground crew and pilots are friendly. The in-flight staff (flight attendants) are the worst in the world. Multiple trips, always unpleasant, combative, use implicit threats to not allow for a discussion on their decision. Authoritarian. This seems to stem from an internal corporate wide policy as I doubt that United is intentionally searching for people that are not fit for customer facing positions. I will not fly United again. Good luck fixing your business

The flight was mostly on time, smooth and deplaning was quick. Baggage was really quick at the claim. Comfort was so-so and I paid for economy plus. It was still too crowded and why was a family of 5 scattered all around the plane?

It was as expected for such a short flight. No complaints

The departing flight from Newark to Charlotte was fine. It was the returning flight from Charlotte to Newark that was awful. We had scheduled an 8:35pm return flight time. We got delayed TEN times all the way to 5am in the morning! We were told over 4 different excuses as to why the flight kept getting delayed. First it was the flight crew needed to rest, then it was something technical with the plane, then it was something with air traffic control, and finally it was because they couldn’t find a captain and had to wait until the morning so the captain could get some rest. It was terrible sleeping overnight in the airport. They offered a $12 meal voucher. That was it! And the only place open in the middle of the night was Dunkin’ Donuts who didn’t even accept the voucher. They should have cancelled the flight much earlier on in the evening instead of just stringing us along hour by hour with more delays. Not professional and unacceptable. There was no refund for inconvenience. I probably will not be flying American Airlines again.

This leg they tried and did well with what they had to work from.

It was nice being on a flight that had working wifi. The boarding was quick - why don’t all airlines have small boarding groups window to aisle? Makes so much sense!!! I was disappointed to be the first person stopped to have to gate check my carryon. Especially when there was plenty of overhead space at the back! But I get it…keeps it moving. Crew was nice.

The flight was as good as it gets when flying. On time departure and arrival plus no lost luggage.

My boarding pass wouldn't pull up in the app very easily and had to really dig through my email. That caused a delay in TSA..

Packed commercial flight was as comfortable as can be expected

My seat was very worn. Otherwise I had an excellent flight

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!

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

A bit noisy. The seat was suboptimal and there was too much noise in the service area. Some if the crew members were less than nice; others were great.

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.
1/25Sat
2 stopsUnited Airlines
35h 45mDCA-OPO
$475
12/25Wed
2 stopsAir Canada
25h 50mDCA-OPO
$492
11/26Tue
3 stops
26h 25mDCA-OPO
$494
2/27Thu
2 stopsAmerican Airlines
13h 25mDCA-OPO
$515
5/6Tue
2 stops
13h 40mDCA-OPO
$530
1/17Fri
3 stops
22h 20mDCA-OPO
$537
12/27Fri
2 stopsAir Canada
35h 50mDCA-OPO
$547
12/24Tue
2 stopsIberia
14h 27mDCA-OPO
$665
5/5Mon
2 stopsDelta
16h 25mDCA-OPO
$739
5/8Thu
2 stopsDelta
16h 25mDCA-OPO
$799

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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.
11/24Sun
multi-stopTAP AIR PORTUGAL
10h 45mDCA-OPO
11/28Thu
multi-stopTAP AIR PORTUGAL
33h 55mOPO-DCA
$1,212
11/23Sat
multi-stop
12h 05mDCA-OPO
11/29Fri
multi-stop
14h 07mOPO-DCA
$1,684
11/23Sat
multi-stopTAP AIR PORTUGAL
12h 05mDCA-OPO
11/29Fri
multi-stopTAP AIR PORTUGAL
18h 45mOPO-DCA
$1,737
11/23Sat
multi-stop
12h 05mDCA-OPO
11/30Sat
multi-stop
31h 57mOPO-DCA
$1,832
11/22Fri
multi-stopUnited Airlines
16h 07mDCA-OPO
11/26Tue
multi-stopUnited Airlines
31h 57mOPO-DCA
$1,896
11/22Fri
multi-stopIberia
13h 44mDCA-OPO
11/24Sun
multi-stopIberia
15h 55mOPO-DCA
$2,012
11/23Sat
multi-stopIberia
12h 47mDCA-OPO
11/29Fri
multi-stopIberia
24h 45mOPO-DCA
$2,130
11/22Fri
multi-stopDelta
15h 50mDCA-OPO
11/28Thu
multi-stopDelta
18h 04mOPO-DCA
$2,593
11/22Fri
multi-stopAmerican Airlines
13h 44mDCA-OPO
11/29Fri
multi-stopAmerican Airlines
15h 55mOPO-DCA
$3,607
11/23Sat
multi-stopAmerican Airlines
12h 47mDCA-OPO
11/30Sat
multi-stopAmerican Airlines
15h 58mOPO-DCA
$4,347

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

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