$360 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 3/15. 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.
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Best Portugal Flight Deals from Reagan-National

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

Lisbon
Lisbon3 stops$652
Porto
Porto2 stops$547
Ponta Delgada
Ponta Delgada2 stops$854
Funchal
Funchal3 stops$769
Faro
Faro2 stops$942

Good to know

Low season

January

High season

May

Cheapest flight

$360
Best time to beat the crowds but there is an average 20% increase in price.
Most popular time to fly and prices are also 3% 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 tips for finding cheap flights to Portugal

  • High season is considered to be January, February and December. The cheapest month to fly from Washington, D.C. is January.
  • Morning departure is around 15% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

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 8219 reviews
7.3Food
8.2Boarding
7.9Entertainment
8.0Comfort
8.5Crew
Airline reviews

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

10.0 ExcellentStephen, Feb 2025SFO - JFK
Read more Delta reviews

Boarding is, as it always is… horrible. Gate lice. Slow moving zones. Too many people with carry ons

I loved having a most black flight crew during Black History Month; rather by design or accident I appreciated the representation. ❤️

This was the second flight this week with flight attendant Marcus I’m not sure if his last name is Lane or Lang but this guy is awesome. He funny, attentive and his service is 5 stars. Marcus makes business travel more enjoyable !

Although the flight left late, we arrived early. It was one of the quickest boarding and off boarding experiences I’ve had. It was kind of annoying the only drinks they had were water, coffee, and tea. The flight was very smooth, temperature was just right, and flight attendants were friendly.

Rode in a smaller plane and short trip meant no snacks, no free wifi or tv. It was only 30min flight so honestly wasn’t a big deal to lack these items.

Lower number on this flight so spaced out passengers. Able to enjoy more room to relax during flight. It was lovely.

Kind staff. Snacks are small but that’s the new normal.

Overall, terrible. Flight from SFO was delayed due to “air traffic control issues”, and we were all mislead about connecting flights. Told “you have 20 minutes to catch your connection”. Reality was 5. We got to watch the plane sit at the bridge. Won’t fly Delta with a connection again.

The young man who was our flight attendant in first class was lazy and did not do his job well at all. Never offered drinks upon boarding - actually I take that back... said "are you okay with water" as if I do not want to get you anything else, only passed the snacks around once, got my drink order wrong and then never offered a second round of drinks. He was the worst I have ever seen on Delta and we fly a lot.

Great service. Great staff. Boarding was a little slow, but I think there was a service dog slowing things down.

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.

The food & entertainment really stood out in terms of quality. The nasi goreng & chicken satay were absolutely delicious. It’s great that KLM feature international cuisine.

Seats were comfortable crew members support was very good but AVML ordered or selected by us needs a lot of improvement.

Transavia flight. Couldn't select seat or anything prior to flight. No connection with klm systems. Seats are very crammed. Extremely no frills.

I don’t understand the purpose of the orange “priority” tag on my bag. This tagged, my bag is last or near to the last bag to come down the carousel at IAH.

The tv monitor in front of my seat was not responding. The flight crew reset it and it still didn’t work.

The agents was very rude and they charged me $50 for a carry-on bag saying that it was too big and then I saw someone going on a plane with the same size bag as me

Liked nothing. As per previous segment it was delay delay delay.

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Plenty of room for me and the cat in Premium Economy. Seat was comfortable. Boarding was a breeze. The lady at the special check-in desk was great, super helpful and professional.

I completely missed my flight because the first leg was longer than planned. I had to sleep overnight in the airport because no accommodation was provided and then sent to Trinidad in the morning with an anticipated 7 hour layover before my flight to Georgetown which was now with Caribbean Airlines. I tried twice with customer service to see if they could put me on an earlier flight which had seats available but was told it wasn’t possible.

First class felt like economy, seats were horrible, food was horrible, staff inattentive

EVen warmer in the plane it think it was 24+ degrees

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.

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.

Baggage check in was very slow. No sign that the check in was TAP until the station opened. Understaffed and overworked team.

Great pilot, textbook landing in madeira. Everything else, from booking to checkin, plane quality, seat amenities, crew engagement, and overall experience were significantly below standard. I WOULD NOT FLY TAP IF THERE IS ANY OTHER OPTION.

Our flight was canceled for a reason that suggests gross mismanagement. We were re-booked for a flight to a different airport.

I liked nothing about this flight nor the incredible lack of service and communication on this flight from the Captain to every staff member. Arrogant, entitled and lacking any kind of basic customer service

Efficient board despite a 100% sold out flight. It’s crowded on the plane but crew was working hard to get us off the ground on time and served dinner and breakfast. Food was good.

Everything should be better, terrible flight and airport service. Delayed for 6 hours, flying around for 1 hr, and keeping us on a plane for another 2,5 -3hrs.

The plane was dirty. It appeared that Air Canada did not know vacuum cleaners had been invented. Second, the overhead bins were about 1/3 or 1/2 the size of "normal" bins. That was a problem. The worst was disembarking in the weather in Montreal. I have cold agglutinin disease. That means my red blood cells clump together and then are destroyed when exposed, even by breathing to cold air. A few seconds of exposure can be dangerous. I am now experiencing extreme fatigue caused by the anemia from that experience. I should have had more assistance descending a narrow ramp and then traversing, even if only a few feet, of icy pavement. The blowing snow penetrated my facial covering and has caused problems.

Good airport. Good entertainment on the big flight. Did not have a good way to prop up or mount my phone/ipad

I booked my flight ni November and was placed on standby? How does this happen. Flight was 1 1/2 hours late departure plane was switched to a smaller plane easy to tell this is a government run company they don’t care about anyone

Boarding was a disaster one person checking in 200 people took 25 min to check in zone 1&2.

Old, noisy plane, bad coffee, delayed. Flight attendant was very nice.

Boarding could be improved, no need to wait after a previous group is completed

We boarded 1.5 hours late. Long wait for the bags when we got to Mexico City. Long wait to get on plane with people mover truck. Friendly staff. They answered all questions as best the could. Such a long, long walk from the plane to customs. Thank you, Michael A. Burris Cambridge, Massachusetts USA

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

Recent round-trip flight deals

3/5Wed
2 stopsDelta
17h 25mDCA-OPO
3/19Wed
2 stopsDelta
17h 43mOPO-DCA
$547
3/22Sat
2 stopsAir Canada
16h 40mDCA-OPO
3/31Mon
2 stopsAir Canada
32h 14mOPO-DCA
$598
3/30Sun
2 stopsUnited Airlines
21h 28mDCA-OPO
4/6Sun
1 stopUnited Airlines
12h 07mOPO-DCA
$689
4/14Mon
1 stopUnited Airlines
12h 10mDCA-LIS
4/23Wed
2 stopsUnited Airlines
32h 01mLIS-DCA
$779
4/19Sat
1 stopBritish Airways
31h 50mDCA-LIS
4/29Tue
1 stopBritish Airways
13h 54mLIS-DCA
$812
8/6Wed
1 stopBritish Airways
11h 52mDCA-LIS
8/20Wed
2 stopsBritish Airways
17h 25mLIS-DCA
$833
6/11Wed
1 stopTAP AIR PORTUGAL
13h 40mDCA-OPO
6/18Wed
1 stopTAP AIR PORTUGAL
20h 31mOPO-DCA
$1,009
5/28Wed
1 stopTAP AIR PORTUGAL
13h 40mDCA-OPO
6/15Sun
1 stopTAP AIR PORTUGAL
29h 59mOPO-DCA
$1,017
3/10Mon
2 stopsKLM
24h 25mDCA-FAO
3/25Tue
2 stopsKLM
26h 15mFAO-DCA
$1,044
3/24Mon
1 stopKLM
14h 30mDCA-LIS
4/2Wed
1 stopKLM
17h 28mLIS-DCA
$1,086

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Recent one-way flight deals

3/15Sat
2 stops
21h 55mDCA-LIS
$360
4/14Mon
2 stops
15h 40mDCA-PDL
$366
2/25Tue
2 stopsTAP AIR PORTUGAL
14h 26mDCA-OPO
$565
2/25Tue
2 stopsTAP AIR PORTUGAL
14h 26mDCA-OPO
$574
7/25Fri
1 stopUnited Airlines
9h 45mDCA-OPO
$793
3/9Sun
1 stopDelta
11h 35mDCA-LIS
$838
3/2Sun
2 stopsKLM
14h 00mDCA-OPO
$904
3/2Sun
2 stopsKLM
14h 00mDCA-OPO
$906
3/3Mon
2 stopsDelta
23h 41mDCA-OPO
$910
7/13Sun
1 stopUnited Airlines
9h 40mDCA-PDL
$4,363

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Last minute flights from Reagan-National to Portugal

Last minute flight, train and bus deals

2/22Sat
multi-stop
14h 00mDCA-LIS
2/28Fri
multi-stop
13h 27mLIS-DCA
$1,095
2/23Sun
multi-stop
15h 20mDCA-LIS
2/25Tue
multi-stop
24h 25mLIS-DCA
$1,127
2/23Sun
multi-stop
18h 35mDCA-LIS
2/25Tue
multi-stop
24h 25mLIS-DCA
$1,128
2/24Mon
multi-stopTAP AIR PORTUGAL
12h 15mDCA-LIS
2/26Wed
multi-stopTAP AIR PORTUGAL
25h 15mLIS-DCA
$1,209
2/22Sat
multi-stopTAP AIR PORTUGAL
25h 15mDCA-OPO
2/26Wed
multi-stopTAP AIR PORTUGAL
18h 45mOPO-DCA
$1,233
2/22Sat
multi-stopAir Canada
35h 45mDCA-OPO
2/26Wed
multi-stopAir Canada
42h 57mOPO-DCA
$1,761
2/23Sun
multi-stopAir Canada
9h 30mDCA-LIS
2/26Wed
multi-stopAir Canada
13h 57mLIS-DCA
$1,968
2/24Mon
multi-stopAmerican Airlines
13h 06mDCA-LIS
4/3Thu
multi-stopAmerican Airlines
14h 41mLIS-DCA
$2,143
2/23Sun
multi-stopBritish Airways
11h 45mDCA-LIS
3/10Mon
multi-stopBritish Airways
13h 10mLIS-DCA
$2,165
2/23Sun
multi-stopBritish Airways
11h 45mDCA-LIS
3/10Mon
multi-stopBritish Airways
14h 53mLIS-DCA
$3,029

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

Information on your arrival and departure airports

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