$293 Find Cheap Flights from Reagan Washington National Airport to Portugal

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 Portugal departing on 10/15. 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
1 adult, Economy

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Cheap Flights from Reagan-National to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon3 stops$621
Porto
Porto2 stops$541
Ponta Delgada
Ponta Delgada3 stops$779
Faro
Faro2 stops$568
Funchal
Funchal2 stops$506
Lisbon
Lisbon3 stops$621
Porto
Porto2 stops$541
Ponta Delgada
Ponta Delgada3 stops$779
Faro
Faro2 stops$568
Funchal
Funchal2 stops$506

Book Cheap Reagan-National to Portugal Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Reagan-National to Portugal 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 for you by selecting your travel dates on KAYAK.

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

Fri, Jan 23 - Sat, Jan 31
Scandinavian Airlines Logo
11:00 am - 3:20 pmDCA-FNC
23h 20m2 stops
Scandinavian Airlines Logo
4:10 pm - 11:33 pmFNC-DCA
36h 23m2 stops
$506Scandinavian Airlines
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Fri, Jan 23 - Sat, Jan 31
Scandinavian Airlines Logo
11:00 am - 3:20 pmDCA-FNC
23h 20m2 stops
Scandinavian Airlines Logo
4:10 pm - 11:33 pmFNC-DCA
36h 23m2 stops
$540Scandinavian Airlines
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Fri, Oct 31 - Tue, Nov 4
Delta Logo
4:50 pm - 3:25 pmDCA-OPO
18h 35m2 stops
Delta Logo
11:25 am - 10:59 pmOPO-DCA
16h 34m2 stops
$541Delta
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Fri, Nov 7 - Tue, Nov 11
United Airlines Logo
12:00 pm - 2:45 pmDCA-OPO
21h 45m2 stops
United Airlines Logo
6:00 am - 9:53 amOPO-DCA
32h 53m2 stops
$552United Airlines
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Fri, Jan 23 - Sun, Feb 1
Iberia Logo
5:49 pm - 11:45 amDCA-OPO
12h 56m2 stops
Iberia Logo
12:25 pm - 10:39 pmOPO-DCA
15h 14m2 stops
$559Iberia
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Fri, Nov 14 - Sat, Nov 22
United Airlines Logo
6:00 pm - 9:30 amDCA-OPO
10h 30m1 stop
United Airlines Logo
6:00 am - 8:58 amOPO-DCA
31h 58m2 stops
$566United Airlines
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Wed, Oct 22 - Fri, Oct 31
Delta Logo
5:00 pm - 3:30 pmDCA-OPO
17h 30m2 stops
Delta Logo
6:30 am - 11:52 pmOPO-DCA
21h 22m2 stops
$587Delta
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Mon, Mar 16 - Fri, Mar 20
Iberia Logo
12:37 pm - 7:40 amDCA-OPO
15h 03m2 stops
Iberia Logo
8:20 am - 8:10 pmOPO-DCA
15h 50m2 stops
$747Iberia
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Mon, Nov 3 - Mon, Nov 10
TAP AIR PORTUGAL Logo
4:55 pm - 6:35 pmDCA-PDL
21h 40m2 stops
TAP AIR PORTUGAL Logo
9:30 am - 2:50 pmPDL-DCA
33h 20m2 stops
$900TAP AIR PORTUGAL
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Thu, Dec 11 - Thu, Dec 18
TAP AIR PORTUGAL Logo
6:59 pm - 6:30 pmDCA-PDL
19h 31m2 stops
TAP AIR PORTUGAL Logo
6:40 am - 9:00 pmPDL-DCA
18h 20m2 stops
$956TAP AIR PORTUGAL
Find Deal
Booking Insights

KAYAK's insights & trends for Reagan-National to Portugal flights

Get data-powered insights and trends into flights from Reagan-National to Portugal 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 Portugal?

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 Portugal, 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 Portugal is January, when tickets cost $700 (return) on average. On the other hand, the most expensive months are September and November, when the average cost of round-trip tickets is $2,136 and $1,561 respectively.

What’s the cheapest day of the week to fly from Reagan Washington National Airport to Portugal?

The average price of all round-trip flights from Washington, D.C. Reagan-National Airport to Portugal clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Reagan Washington National Airport to Portugal, look for departures on Mondays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Portugal, Sunday is the cheapest day to fly and Wednesday is the most expensive.

Good to know

Low seasonJuly
Cheapest flight$293
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 19% lower on average.
Flight from Reagan Washington National Airport to Faro

FAQs - booking Portugal flights

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

    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 Portugal.

  • 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 Portugal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Reagan Washington National Airport to Portugal 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 Portugal?

    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 from Reagan Washington National Airport to Portugal with an airline and back with another airline.

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

    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 from Reagan Washington National Airport to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Portugal?

    The cheapest time of day to fly to Portugal is generally at night, when round-trip flights cost $1,008 on average. On average, there is no price difference when choosing to fly in the morning or the evening on this flight route. The most expensive time of day to fly to Portugal is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,302.

Reviews of the top 4 airlines serving from Reagan-National to Portugal

 
Need help choosing which airline to fly with from Reagan-National to Portugal? 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.
7.9
DeltaOverall score based on 7957 reviews
7.9Entertainment
8.2Boarding
7.9Comfort
8.5Crew
7.3Food
Airline reviews

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

8.0 ExcellentAnonymous, Sep 2025GFK - MSP
Read more Delta reviews

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

Passengers need to check in big baggage instead of bringing on the plane. That cause inconvenience for everyone. Otherwise flight was good.

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

The food was terrible especially for a 15 hour international flight. The crew was unpleasant as well.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Quick check in. Everything went smooth. I don't know what can be done about airline food.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Terrible. They wouldn't allow me on my flight on the 14th..

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

Everything was good, except the seats in economy were so close together, you could barely get out when the seat in front of your was reclined. If the airlines keep jamming in more and more seats, it will become intolerable. I will look for another airline that considers customer comfort and does not keep adding more rows of seats for more profit.

Great service on board. Boarding a bit slow due to process. Food was pretty average.

Very small cramped plane for an international flight. Everything else was good, but it was maybe the smallest comfort-wise I've ever been on for longer than 3-4 hours and the trip was 7.5

Flight was delayed 3 hours. No food and drink vouchers was provided. They offered a mini pretzel bag and water .

Staff was rude. Didn’t give water for 2 hours. Worst service

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

An old airplane with very uncomfortable seats in the Comfort “class! Small, narrow, and hard seat. Entertainment options are inferior, old movies. Boarding started at the back of the airplane, as we entered the aircraft last instead of after business class, risking the possibility that the comfort section would not have room for carry-on in the overhead bin. The food was ok. White wine was terrible. Overall, the flight felt worse than cheap airliners, and the price was as high as premium carriers.

I will avoid TAP if I can, the ground experience was very poor with bad behaviour from the ground crew and it was only a bit better on the aircraft.

I had a business class ticket from EWR to Madrid with a layover at LIS for 11 hours. It was obvious that I needed to pick up my luggage in Lisbon for 11 hours and check it in again when boarding the second flight to Madrid. Before buying the ticket, I called TAP customer service. Customer service assured me that I could get my luggage in Lisbon. When I arrived at Newark airport, I immediately asked to check my luggage to Lisbon. However, the TAP employee refused me, saying that I should resolve this issue upon arrival in Lisbon. She checked my luggage to Madrid. I asked the TAP employee at the gate to help me when boarding the plane, I asked the flight attendants manager on board the plane to help me. All the employees refused to help me and said that I should resolve this issue in Lisbon. It took me 4 hours to resolve this issue in Lisbon. I arrived at 11am and they didn't give me my luggage until 3pm. As a result, I was so tired after a sleepless night on the plane and 4 hours on my feet at the airport and all my plans were ruined that I couldn't fly to Madrid. It was a terrible experiance,

The seats were not designed to comfortably see people in coach for more than 10 minutes

A good, comfortable flight with friendly crew and good entertainment options.

Very rude person at the boarding desk; flight attendant coughing 3 inches from my face three times- not even covering her mouth; boarding process very unacceptable for older people with stairs to all planes (are you all stuck in the 1960’s?). I am sure that I am not remembering all of the negative things, but I am sure you get the message!

There was chaos at the Naples airport. We arrived three hours early for the flight but there was no invitation available about where to go to check bags until an hour later. Then we had to go to a different terminal to check our bags and check in and back to the first to board.

We flew TAP last October from Newark to Lisbon. The meal was bad. This flight had good food. Also, this flight was delayed. There were TAP employees waiting at Lisbon to make sure we made our connecting flight. I find the TAP website and app frustrating, but the service once we reached the airport was very good

The airport temperature at the airport and on the flight was too warm

Boarding too way too long. Biggest peeve: zero in-seat power in economy! No plug sockets, no USB ports. Plane was an A330, so not old.

I liked Quiet people around me. Crew could have helped people with overhead luggage so they aren't moving other peoples bags around and causing problems for people that had there bags there first

The flight and crew were good. The customer experience on the ground could have been better. We had to reschedule our flight because of a delay on the previous flight. The attendants working the desk in Washington DC were not helpful. They told us to scan a QR code and that would get us rebooked. Why couldn't two people standing at their computers do this? We had to chat with someone to get everything figured out. It was extremely confusing.

The plane was delayed by two hours in Chicago which led to us missing the next flight. Lufthansa rebooked the flight and booked us a hotel for the night in Frankfurt. The level of customer service and getting us taken care of was superb. The flight crew and the service on the ground was superb.

It was a short flight, everything was good with it.

Flight was delayed over one hour and I had to pay to select my seat, even though my booking supposedly had free selection (I paid extra for this at time of booking)

Stop charging for alcohol overseas flights and start taking cash again not everyone wants to pay with card if the person is bigger give him seat on the outside seats not the middle in between the people is common sense and mainly if you fly for Lufthansa provides the sam service and experience...

good entertainment package but rather small seats for business class

The male attendant has zero personality. It seemed like he was over worked or hated his job, not once did he smile or made any contact with the people on the plane. Strictly business and call it a day!

Booked Economy but it translated to economy light for Lufthansa so now we are stuck paying an extra $75 per person both ways for our checked bags. If I had known that, I would have never booked these tickets because it came out to be more than other options. The booking in the kayak side clearly says Economy and has a link to the inormation for Lufthansa which states Economy included a checked bag. Super annoyed about that.

The flight from Dulles to Munich was just okay. The seats were comfortable and extra foot room was noticeable in comfort plus. Disappointed in the booking in so much I requested an aisle seat and then was assigned a middle seat. The food was inedible. Movie choices were moderate. I usually fly Delta, but this WA flight was cheaper. Next time, I'll happily pay the extra to fly Delta.

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