$363 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 6/17. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Portugal

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Best Portugal Flight Deals from Reagan-National

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Lisbon
Lisbon2 stops$690
Porto
Porto1 stop$627
Ponta Delgada
Ponta Delgada1 stop$802
Funchal
Funchal2 stops$1,045
Faro
Faro2 stops$819

Cheap Flight Deals from Reagan-National to Portugal (DCA-PT0)

 
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.

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

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Reagan-National to Portugal.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
United Airlines Logo
5:15 pm - 7:45 amDCA-OPO
9h 30m1 stop
United Airlines Logo
12:50 pm - 10:29 amOPO-DCA
26h 39m2 stops
$627United Airlines
Find Deal
Tue, Aug 5 - Tue, Aug 19
 Logo
5:15 pm - 6:05 amDCA-OPO
31h 50m1 stop
 Logo
12:50 pm - 3:48 pmOPO-DCA
31h 58m1 stop
Tue, Aug 5 - Tue, Aug 19
Air Canada Logo
12:55 pm - 9:20 amDCA-OPO
39h 25m2 stops
Air Canada Logo
12:50 pm - 12:03 pmOPO-DCA
28h 13m2 stops
$636Air Canada
Find Deal
Tue, Aug 5 - Tue, Aug 19
Air Canada Logo
4:35 pm - 9:35 amDCA-OPO
12h 00m1 stop
Air Canada Logo
6:00 am - 9:06 pmOPO-DCA
20h 06m2 stops
$661Air Canada
Find Deal
Mon, Sep 8 - Wed, Sep 24
Delta Logo
5:00 pm - 3:30 pmDCA-OPO
17h 30m2 stops
Delta Logo
11:45 am - 11:00 amOPO-DCA
28h 15m2 stops
$693Delta
Find Deal
Mon, Sep 15 - Wed, Dec 24
Delta Logo
5:00 pm - 3:30 pmDCA-OPO
17h 30m2 stops
Delta Logo
11:45 am - 11:00 amOPO-DCA
28h 15m2 stops
$708Delta
Find Deal
Tue, Sep 16 - Wed, Dec 24
TAP AIR PORTUGAL Logo
1:59 pm - 10:10 amDCA-LIS
15h 11m1 stop
TAP AIR PORTUGAL Logo
6:00 pm - 8:00 amLIS-DCA
43h 00m2 stops
$1,045TAP AIR PORTUGAL
Find Deal
Tue, May 13 - Tue, May 20
TAP AIR PORTUGAL Logo
4:15 pm - 2:05 pmDCA-OPO
16h 50m2 stops
TAP AIR PORTUGAL Logo
6:00 pm - 9:20 amOPO-DCA
20h 20m1 stop
$1,055TAP AIR PORTUGAL
Find Deal
Tue, May 13 - Sun, May 18
KLM Logo
12:10 pm - 9:10 amDCA-FAO
16h 00m2 stops
KLM Logo
8:30 am - 10:45 pmFAO-DCA
19h 15m2 stops
$1,820KLM
Find Deal
Mon, Apr 21 - Thu, May 8
KLM Logo
7:59 pm - 8:40 pmDCA-FAO
19h 41m2 stops
KLM Logo
10:00 am - 10:04 pmFAO-DCA
17h 04m2 stops
$1,960KLM
Find Deal
Thu, Apr 24 - Tue, May 6

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 time of day to fly to Portugal?

The average price for all round-trip flights from Washington, D.C. Reagan-National Airport to Portugal depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
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.

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 December, when the average cost of round-trip tickets is $1,484 and $1,130 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 Monday is the most expensive.

Good to know

Low season

February

High season

May

Cheapest flight

$363
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Reagan Washington National Airport to Lisbon

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.

See more FAQs

Top 5 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.
8.0
DeltaOverall score based on 7898 reviews
8.5Crew
7.9Entertainment
7.9Comfort
7.3Food
8.2Boarding
Airline reviews

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

10.0 ExcellentSunderesh, Mar 2025AUS - BOS
Read more Delta reviews

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

After a 5 hour delay waiting at the gate (3 delays adding up) with no clear reason provided, we finally boarded flew 3/4 of the way to Toronto then were turned back to New York. As we neared New York, the pilot declared that it was his fault, something to do with timing and him not being allowed into the country???? How could the airline let his happen? They had hours to prepare and make sure they had a crew available for the flight! We ended up in Toronto a day late with no sleep.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

Terrible and im avoiding them in the future. My initial flight was delayed causing me to rebook my flight and when speaking with the representative to rebook I explained this is the second time my flights were delayed and they did nothing to help me. I wasn't booked to comfort plus or given a voucher or anything. I was almost late for my meeting that I needed to attend on Monday because of the games delta played delaying my flights even more and putting me in the very back of the plane next to an extremely intoxicated passenger

Friendly flight attendants, smooth 8-9 hours flight. Economy seats are small and uncomfortable as usual.

Flights on time. .Ride was as comfortable as can be expected in steerage. Luggage arrived at destination. Attendants were fairly friendly.

Great staff. Wifi is terrible. Signing up for skylines is a painstaking process. Had to call customer service just to get my flight itinerary and confirmation sent to me. Consistent delays. A well staffed company that is run so poorly. Upper management needs to be renewed.

The WiFi didn't seem as fast as it normally is

Bathrooms dirty sinks clogged. No one seemed to clean them. Plane very old

This portion of the flight was through Indigo. A local carrier. So all economy seating. No real service some refreshments for purchase standard economy stuff.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

Overall very poor. Flight was disorganised, staff were rude and this is my second experience with KLM that I've had baggage go missing. It feels like, if you are an economy customer, KLM staff do not show you any care. I shall never fly with KLM again. Worst airline in Europe

Great boarding, great short flight but no entertainment whatsoever. It was supposed to have wifi but that did not work.

Transfer at CDG to connecting KLM flight to Amsterdam was a NIGHTMARE. LONG WALKWAYS, NO MOVING WALKWAYS, POOR signage, Have to take a train & No staff visible to help navigate the maze. AVOID TRANSFER AT CDG AT ALL COST.

Good flight with KLM, friendly staff. Food was good, had much worse on other airlines. Selection of drinks also good enough for us. Entertainment was also good. The economy seats are ok and that’s it. For a 12 hour flight I think a little more comfort in the economy seats in pitch and softness would be highly appreciated by the customers and can makte the difference.

Good food. Excellent crew service. Clean aircraft. Narrow seats and isle.

There was fog in Amsterdam so many flights were delayed because of the weather. Air France knew that the flight would be delayed by two hours but still boarded the plane on time. Instead of letting the passengers wait at the gate we were crammed into the plane. It was uncomfortable. No refreshments were given. I couldn’t charge my devices onboard.

I tried to upgrade to premium economy anis seat online during the checkin process. The payment didn’t work due to a technical glitch on KLM’s website. I wasn’t able to change my seat unless I called Amsterdam. Since I was in Canada and there’s a time difference this wasn’t practical. So when I arrived early to Ottawa airport my seat wasn’t available and I could only get a middle seat in premium economy which isn’t great. These middle seats are priced at the same rate as an aisle seat which makes no sense.

Awful. I told them to cancel my return flight and they didn’t then charged me +$800 days before the flight for a biz class upgrade bid. When I called to confirm cancellation and get refund on buz class upgrade they said I had to go thru orbitz and it was too late. Scammers. Beware.

Little leg room in business. I am tall and could use more.

Was a cheap flight and it got me to Portugal on time. For economy there was ample leg room and the flight attendants were pleasant and helpful.

Flight was packed. This was a very uncomfortable experience. Boarding process could be explained better. Despite recommending a window seat when travelling with a pet in the cabin, the seat in front of me had less space than the center and aisle seats. For Premium Economy, the seats were crammed with minimal legroom. I hate to think what Regular Economy was like. The cabin crew missed me at first when handing out meals. When my meal eventually came, there were no utensils. I'd originally booked to fly Business Class; those seats didn't look that great either.

Flight was packed. This was a very uncomfortable experience. Boarding process could be explained better. Despite recommending a window seat when travelling with a pet in the cabin, the seat in front of me had less space than the center and aisle seats. For Premium Economy, the seats were crammed with minimal legroom. I hate to think what Regular Economy was like. The cabin crew missed me at first when handing out meals. When my meal eventually came, there were no utensils.

First time and I enjoyed the trip…. Will fly again soon 🔜

Delayed flight because other plane was occupying the gate for longer than expected. Once we boarded the plane had to wait 1 hour before taking off. We. Almost lost our connection flight and the baggage didn’t make it. We had to wait two days to receive our luggage. Hope they improve the timing or work with the airport to get better service.

I’m still missing my bags. I’m soo frustrated

TAP boarding gate agents singled out Group A line to gate check all carry on bags …. Supposedly because of lack on bin space. BUT ALL OTHERS WERE PERMITTED WITH CARRY ON BAGS. Additionally so many passengers entering the plane after us were permitted carry on bags. And when the plane was fully loaded, there was a number of open spaces in the overhead bins. I WILL SEARCH OTHER OPTIONS BEFORE FLYING TAP AGAIN

Boarding went fast. Lisbon's gates are too small for the flights they serve.

it was red eye flight, it was ok, there was beverage service, thats it i didnt care much as i wanted to sleep

1. Nowhere to sit at the gate D4 2. No control of lining up in different zones 3. People pushing in during the line up of zones. 4. Certainly not in a dignified manner.

Everything went smoothly. I appreciate the selection of free movies.

It was okay until this flight had mechanical problems which made us miss our connecting flight and my friend and I had to pay an extra $500 each to get to our next location at a later time.

I like the friendliness of the crew members. I think the snack could’ve been better instead of a small package of pretzel. I like that they offer me something to drink.

The TSA agents in Phoenix were incredibly rude and confiscated belongings that we wanted to check. The flight got changed without our knowledge to a worse situation. The whole thing was terrible

Air Canada was great! From the airport at Montreal to boarding to the food on board the plane. The crew was great too! There was a slight issue with some other peoples’ tickets that I overheard about but the crew handled with care immediately to ensure everyone was comfortable and we could takeoff! Great experience with Air Canada

My experience with Air Canada was good. Great customer service… only a few delays and issues with the tunnel to exit the plain. I did not appreciate that we arrived at terminal D and had to go to terminal E to get the bags/ luggage.

PDX staff was great and we arrived on time in YVR.

They announced before boarding that the flight was full and there would be limited space in the overhead bins and you could check in for free. We did and after we boarded the plane found it was not full and there was plenty of space in the overhead bins. I’m not sure why they made this announcement.

Was late but that airport/storm fault. Flight was full but comfortable. Food quite nice. Unfortunate that I had a rather miserable attendant, others were much friendlier

Experience was good. Could have been better if we didn’t have to board an hour before the flight to ghana and miss relaxing time in the lounge. That process was very stressful

Boarding crew is unfriendly as i was asked to handover carryon luggage too upto final destination Bangalore I was not prepared for that and i had to travel without my diabetic and hypertension medicines

I was charged fees for check in bags at the airport by British Airways. It was supposed to be no charge but Kayak messed up my booking apparently and I had to pay for check in bags. I paid $175.

They took my carry on and checked it in. Staff in general at Heathrow are not friendly or helpful

The crew were professional and friendly. It was the most uncomfortable international flight I've ever flown. Crammed in passengers. No overhead space to put my bag. No leg room and unable to recline seat due to seats too close together so it upset passenger behind me! Upgrade price to get 2 inches of more space unreasonable.

Boarding in Dallas was hell with extremely rude gate agents , especially a lady named Rajathi who was the epitome of rudeness with no compassion at all . She was horrible and I wonder why airlines have people like her on their roster who exude arrogance and haughtiness . Will probably not fly British Airwsys because of people like her .

Less than average, low level of shared required information needed during the transfer from airport to another, also the used team during boarding In Indianapolis station is Not Professional

Food was average. Better headphones seats were average at best.

Nice flight. Legroom was good. Food was good. Staff was friendly and helpful. Plane was modern and clean. Seats and headrests were comfortable. Entertainment system was good and modern, with a bright LCD screen and many appealing choices.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.