$390 Find Cheap Flights from Portugal to District of Columbia

1 adult
1 adult, Economy

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

 
These are the airlines KAYAK users have selected most often from within our search results for flights to District of Columbia
These are the airlines KAYAK users have selected most often from within our search results for flights to District of Columbia
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KAYAK's insights & trends for flights to District of Columbia

Get data-powered insights and trends for flights to District of Columbia to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to District of Columbia?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

The cheapest ticket to District of Columbia from Portugal found in the last 72 hours was to Washington, D.C. Dulles Intl Airport, at $374 round-trip. The most popular route is Lisbon (LIS) to Washington, D.C. Dulles Intl Airport (IAD) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $374.

What is the cheapest month to fly from Portugal to District of Columbia?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Portugal to District of Columbia, 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 Portugal to District of Columbia is November, when tickets cost $568 (return) on average. On the other hand, the most expensive months are July and October, when the average cost of round-trip tickets is $963 and $770 respectively.

Which is the cheapest airport to fly into in District of Columbia?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in District of Columbia is Washington, D.C. Dulles Intl Airport (IAD), with an average flight price of $632.


Good to know

Low seasonFebruary
High seasonOctober
Cheapest flight$390
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly and prices are also 5% lower on average.
Flight from Lisbon to Washington, D.C.

FAQs for booking flights from Portugal to District of Columbia

  • How does KAYAK find such low prices on flights from Portugal to District of Columbia?

    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 Portugal to District of Columbia.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portugal to District of Columbia?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portugal to District of Columbia 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 Portugal to District of Columbia?

    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 Portugal to District of Columbia 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 Portugal to District of Columbia?

    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 Portugal to District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to District of Columbia?

    Based on KAYAK data, the cheapest day to fly to District of Columbia is Thursday where round-trip tickets can be as cheap as $727. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $869 on average.

  • What is the cheapest time of day to fly to District of Columbia?

    The cheapest time of day to fly to District of Columbia is generally in the afternoon, when round-trip flights cost $484 on average. Morning departures are around 27% more expensive than evening flights, on average. The most expensive time of day to fly to District of Columbia is generally in the morning, which is peak travel time and where the average cost of a ticket is $788.

Top 5 airlines serving from Portugal to District of Columbia

 
See real verified KAYAK customer reviews for airlines flying to District of Columbia. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Portugal to District of Columbia. 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 Portugal to District of Columbia? 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 7950 reviews
8.2Boarding
7.9Comfort
7.3Food
7.9Entertainment
8.5Crew
Airline reviews

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

10.0 ExcellentHartaj, Jun 2025EWR - RDU
Read more Delta reviews

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

Amazing flight! I have never noticed the uniforms of the attendants before in twenty years of flying except today when one female had the most amazing dress on. It was beautifully designed and showed she was in charge. I never dreamed I would google who designed Delta uniforms . The ultimate compliment is when another woman admires your outfit. . I hope your designer puts it on the market

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

My flight was 6 pm 6/6. Every hour they delayed it again - air condition issues then no pilot then the crew had worked too many hours and cancelled the flight at 11 pm. Sent customers to NJ a 45 minutes uber ride to a hotel. Had to be back by 5 am for a 7 am flight and again no pilot etc with another three hours of delays.

The entertainment and wifi mostly didn't work on this flight.

Boarding was tough as we had to take a bus out to the plane and walk up a lot of stairs. Difficult with heavy carry-ons that said I got an entire empty row of seats, which was excellent for an international flight. Food was very mediocre but happy with the comfort so not complaining.

Terrible entertainment system - kept freezing and audio kept cutting out. Snacks were mediocre at best for a 5 hour flight.

The check in and bag drop off for Sky Priority members is slow. The Clear security was also slow - a TSA issue.

Delta is better for short flights and very low need for customer service. Avoid for longer flights

Turbulent taking off & landing to Dulles from Raleigh. Flight from Dulles to Tokyo very good!!

Very nice and clean plane. Transit time between flights was tight though

Mostly the experience was good except for the flight changes made by UA which meant longer layover in DC

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.

Change cabin crew assisting business class. Not taking care, ignoring requests and calls. Never had such an experience in business class.

United left one of our bags back in SFO but that’s not my real complaint. The complaint is how it all went down. So we checked in the day before online and were told we could use the quick drop for luggage. So the next day I used baggage quick drop curbside at SFO. The agent mistakenly didn't tag my bag as he put my bag on the conveyor belt untagged. We immediately alerted him he had not tagged the bag. I walked with him to the baggage service office to find my bag and tag it. We waited outside the office for 10 mins. He came out and said everything was ok and the bag was going to be tagged and on my flight. We received a text that one of our bags was on the flight but the other was not. I alerted my first class flight attendant immediately upon boarding the flight. She was helpful and said she’d get it sorted out right away. She called over the gate agent. The gate agent used my bag number and looked over information on her device. She said my bag was on the flight. The flight attendant was standing with her, looking at the device, and also said “yep it’s on the flight”. During the flight the flight attendant made reference to how reassuring it must feel knowing the bag was on the flight. Upon arriving to IAD we received a text that my bag was not on my flight. The text said my bag would arrive to my final destination LIS 24 hrs late. I understand that mistakes happen. I was totally ok with my bag mistakenly not getting tagged at the quick drop. I was fine with walking down to baggage services to tag my bag. But, what I am not ok with is that the United staff said they fixed the mistake two different times, assuring me twice that my bag would be/was on the plane…and it wasn’t. I expected better attention by the employees, for them to do what they said they were going to do. We also spent extra money to upgrade our seats to first class, including the entire return leg from Lisbon to San Francisco because we wanted a smoother and more relaxing travel experience. Our money was not well spent. We will not be using United for travel going forward.

The flight was delayed, it took longer than anticipated because of weather, and they broke my luggage.

Horrifying! And I am almost 2 million miles with United. Late by 3 1/2 hours. Worst: after two hours on the plane waiting, they decided that one of the tires had been damaged and then decided to change it. Another hour and a half to change the tire!!!!! NO EXCUSE FOR THIS. The crew didn't even offer a glass of water until we had been on the plane for FIVE hours. This is the worst airline in the world. I'm simply stuck because they fly on the only routes I need.

Gate got changed about 4 times. Very confusing and very crowded. If you don’t have wifi to help get updates, you can be in deep trouble.

Attendants zipped through cabin so fast hardly anyone got the water they told us we could have in the short flight. Nothing else was offered.

Terrible flight attendant attitude. Average 3-star hotel employee has better hospitality skills. Business class seats are literally a joke. TAP executives should ride business class in other airlines to develop some rudimentary sense of what business class is.

First, communication was terrible. The gate on our ticket was not what was reflected on the airport screens and TAP personnel were not present at either gate to answer questions. The flight was delayed and there was no announcement. Also, there was an equipment swap to a smaller airframe which affected our level of comfort. The root of all these issues was as a lack of communication. With air travel in foreign countries already being a stressful affair, lack of communication needlessly raises the level of difficulty.

Very pleasant flight, crew was very nice. The flight was really smooth, big plane. The seats are kind of close together, so comfort was just OK. The boarding process on the way back to New York was a little chaotic. It took a long time.There were no announcements, no loudspeaker just one staff yelling out of instructions and a lot of people crowding in before their term to board. So that could really be improved a lot.

The crew was very nice. The food was good. The entertainment on the way back to Miami wasn’t as good as the flight over. I wanted to watch Wicked but on the way over from Miami to Lisbon but the screen didn’t work. On the way from Lisbon to Miami Wicked wasn’t an option. Liked the option to check out overhead carry on with our checked luggage Overall the flights were very good. I would fly TaP again

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

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.

Worst: long walk to baggage claim Best: left on time

Got in on time. Food was the worst ever. Comfort was terrible. Check in was incredibly bad.

The flight schedules are better than some airlines. Their website is terrible, it doesn’t store any information so every time you fly you have to re-enter the data. The flight was late taking off but we still got to our destination on time.

Flight delayed by >1 hour. Long boarding involving riding a shuttle to the plane.

The food not that great. Did not like the fact that we could not purchase upgrade at the airport

We paid for business class, and my seat did not work at all. Each time I wanted to adjust the position, an attendant had to come to physically force the seat into its new position. They tried to fix it by fiddling with the electronics (military reset, for example), to no avail. Also, the food was just mediocre. We were at the end of a serving section, so they ran out of several choices. (This was on the flight from Los Angeles to Munich.)

The crew was the best I’ve ever encountered. Business class was spacious, immaculate, and very modern.

The plane was very clean. The bathroom was clean as well. The land crew were very polite and informative and helpful. They informed me that there is a long way and challenging to go from international terminal to national terminal and in addition to getting my suitcases and going through customs and dropping them again for my second leg of trip which was San Francisco to Los Angeles . I have left knee issue and had a recent fall with aching muscles all over, the land crew suggested wheelchair help for me, God bless her. If I did not have help, I could not make it to my last terminal. Thank you UNITED AIRLINE!

I like the service and the efficiency. I am lactose intolerant and the lactose intolerant meal in business class was not astounding. Also, the business class fully reclining seats are not that comfortable.

Food was great but they didn't clear my meal tray for 3 hours. You'd think they could check though the cabin now and then.

Upon arriving at IAH, it was informed that the luggage had not arrived. Still waiting to hear back when it will be delivered.

I wasn’t allowed to board with my children. I was charged outrageous costs for basic carry on size luggage. The entertainment screens were outdated and not user friendly.

I was very happy with everything, thank you for the smooth flight ✈️

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

Better synchronizing the boarding processes. The audio announcements, the personnel and the digital signage were not saying the same thing. All confusion.

The first class seats were unusable, mine at the end of the flight, my husband's in the middle of the flight, and the one next to me was unusable either, they had to move the person to another seat.

Last minute gate change. Didn’t put our TSA global on our trip even though we asked multiple times to confirm. Did not help with food when could not eat what was served.

Our luggage didn’t arrive with us, that puts a damper on the whole trip.

The cabin was bit colder than I like but the crew members looked after us very well. They did even offer hot water bottle and hot chocolate. I cannot rate the crew enough excellent is not good enough. They really were wonderful.

Boarding is always a challenge as folks in al groups crowd around for no reason, but crew handled it well. I once again applaud the LHR ground baggage staff as they got our bags from a flight at Terminal 5A to a flight in Terminal 5C within 40 minutes...amazing!

This flight from London to Chicago was actually on an AA airline. I did book through BA but the flight was AA. Great flight, hectic in Chicago, I wouldn't choose to fly through Chicago again, but that's not the airlines fault. The flight itself was great.

Push back is not working when I complaint a male staff he told me that most of the seats are like that so we can’t do anything

Seats were way too small. I got claustrophobic waiting for trash from meal to be taken away. I couldn't move to even close my tray until trash was taken.

Was 3 hrs delayed and my poor friend I met in Barcelona was waiting at airport for 3 hrs. Dallas airport was awful

Book cheap flights from Portugal to District of Columbia

Recent round-trip flight deals

 
These are the cheapest round-trip flights to District of Columbia found on KAYAK in the last 72 hours.
11/6Thu
1 stopAmerican Airlines
13h 10mLIS-IAD
11/19Wed
1 stopAmerican Airlines
18h 30mIAD-LIS
$474
9/3Wed
1 stopAmerican Airlines
13h 25mLIS-IAD
9/17Wed
1 stopAmerican Airlines
14h 15mIAD-LIS
$475
8/28Thu
1 stopBritish Airways
15h 15mLIS-IAD
10/27Mon
1 stopBritish Airways
16h 00mIAD-LIS
$488
10/1Wed
1 stopBritish Airways
17h 55mLIS-IAD
10/16Thu
1 stopBritish Airways
19h 20mIAD-LIS
$490
10/8Wed
1 stopTAP AIR PORTUGAL
13h 20mOPO-IAD
10/21Tue
1 stopTAP AIR PORTUGAL
17h 05mIAD-OPO
$492
11/11Tue
nonstopTAP AIR PORTUGAL
8h 50mLIS-IAD
12/2Tue
nonstopTAP AIR PORTUGAL
7h 05mIAD-LIS
$493
11/11Tue
1 stopLufthansa
15h 50mLIS-IAD
12/2Tue
nonstopLufthansa
7h 10mIAD-LIS
$555
11/11Tue
2 stopsUnited Airlines
35h 45mLIS-IAD
12/2Tue
2 stopsUnited Airlines
19h 45mIAD-LIS
$557
11/29Sat
2 stopsUnited Airlines
22h 37mLIS-DCA
12/6Sat
2 stopsUnited Airlines
17h 20mDCA-LIS
$557
12/2Tue
1 stopLufthansa
15h 50mLIS-IAD
12/7Sun
nonstopLufthansa
7h 10mIAD-LIS
$561

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Recent one-way flight deals

 
Only flying one-way? Below are some of the best deals for one-way flights to District of Columbia found on KAYAK in the last 72 hours.
9/28Sun
1 stopAer Lingus
13h 00mLIS-IAD
$390
9/7Sun
2 stops
34h 05mLIS-IAD
$401
10/2Thu
1 stopTAP AIR PORTUGAL
13h 25mOPO-IAD
$520
10/15Wed
nonstopTAP AIR PORTUGAL
8h 20mLIS-IAD
$524
10/2Thu
2 stopsBritish Airways
16h 45mOPO-DCA
$543
10/2Thu
2 stopsBritish Airways
16h 27mOPO-IAD
$543
9/25Thu
nonstopLufthansa
8h 25mLIS-IAD
$618
9/7Sun
2 stopsLufthansa
14h 35mOPO-IAD
$693
7/8Tue
1 stopUnited Airlines
26h 28mOPO-DCA
$785
7/1Tue
1 stopUnited Airlines
15h 23mLIS-DCA
$797

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Last minute flights to District of Columbia

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 to District of Columbia that are departing in the next 10 days.
6/17Tue
multi-stop
15h 35mLIS-IAD
6/23Mon
multi-stop
15h 30mIAD-LIS
$582
6/17Tue
multi-stopDelta
15h 35mLIS-IAD
6/23Mon
multi-stopDelta
16h 20mIAD-LIS
$583
6/17Tue
nonstopUnited Airlines
8h 15mLIS-IAD
6/22Sun
nonstopUnited Airlines
7h 15mIAD-LIS
$587
6/17Tue
multi-stopUnited Airlines
16h 35mLIS-IAD
6/22Sun
nonstopUnited Airlines
7h 15mIAD-LIS
$588
6/15Sun
multi-stopBritish Airways
15h 27mLIS-DCA
6/28Sat
multi-stopBritish Airways
11h 25mDCA-LIS
$731
6/15Sun
multi-stopBritish Airways
30h 20mLIS-IAD
6/28Sat
multi-stopBritish Airways
12h 30mIAD-LIS
$753
6/17Tue
multi-stopLufthansa
18h 50mLIS-IAD
6/20Fri
nonstopLufthansa
7h 15mIAD-LIS
$809
6/16Mon
multi-stopLufthansa
19h 20mLIS-IAD
6/20Fri
nonstopLufthansa
7h 15mIAD-LIS
$810
6/13Fri
nonstopTAP AIR PORTUGAL
8h 15mLIS-IAD
6/24Tue
nonstopTAP AIR PORTUGAL
7h 20mIAD-LIS
$961
6/15Sun
nonstopTAP AIR PORTUGAL
8h 20mLIS-IAD
6/28Sat
nonstopTAP AIR PORTUGAL
7h 20mIAD-LIS
$1,116

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Everything you need to know for your flight to District of Columbia

Cabin class types available on flights to District of Columbia

Cabin classes available on flights to District of Columbia. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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