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Find cheap flights from Washington, D.C. to Portugal from $299

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Portugal departing on 9/7. 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
0 bags
Wed 6/5
Wed 6/12

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Best Portugal Flight Deals

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

Lisbon
Lisbon1 stop$429
Porto
Porto1 stop$600
Ponta Delgada
Ponta Delgada1 stop$561
Funchal
Funchal1 stop$805
Faro
Faro3 stops$947

Good to know

Low season

January

High season

June

Cheapest flight

$299
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly with an average 37% increase in price.
Flight from Baltimore to Lisbon

FAQs - booking Portugal flights

  • Which airport in Portugal offers free wheelchair services?

    Due to a requirement by the European Union that mandates all airports in the region to provide free accessibility services to travelers with disabilities and reduced mobility, you will be able to receive free wheelchair services at any airport in the country upon request. Simply reserve one by informing your airline or travel agent at least 48 hours before departure.

  • Are there any airlines offering direct flights on this route?

    While most of the flights from Washington D.C. to Portugal have at least one layover in between, you can still get a direct flight on this route. TAP Air Portugal, Lufthansa, and United Airlines are the only airlines offering direct trips. All flights come from Dulles International Airport (IAD) and land at Humberto Delgado Airport (LIS).

  • Which international airlines have a lounge at IAD Airport?

    There are ten lounges at IAD Airport where you can hang out while waiting to board your flight. United Airlines has four lounges, three of which are located in Concourse C while the fourth one is in Concourse D. Air France and KLM have a joint lounge in Concourse A opposite Gate A22 while the Virgin Atlantic Clubhouse is on the same concourse near Gate A32. Turkish Airlines, British Airways, and Lufthansa lounges are all in Concourse B.

  • Which is the closest airport to downtown Washington D.C?

    The closest airport to downtown Washington D.C is DCA. If you're coming from that region, you should consider booking a flight that flies out of DCA. It is also worth mentioning that DCA is the least busy airport compared to BWI and IAD. However, only IAD offers direct flights from Washington to Portugal.

  • How does KAYAK find such low prices on flights from Washington, D.C. 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 Washington, D.C. to Portugal.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Portugal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Portugal from Washington, D.C. 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 Washington, D.C. 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 to Portugal with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. 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 to Portugal from Washington, D.C. 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

  • Morning departure is around 8% cheaper than an evening flight, on average*.
  • When flying out of Washington, you have the choice between Ronald Reagan Washington Airport (DCA), Dulles Airport (IAD), and Thurgood Marshall Airport (BWI). All three airports offer flights from Washington D.C to Portugal.
  • Humberto Delgado Airport (LIS) is the best airport to land in Portugal if you want access to most attractions in the country. This is because the airport is located in the country’s capital and provides flight, train, and bus connections to other major cities in Portugal.
  • When traveling with your pet through BWI Airport, you will find pet relief areas both indoors past security and outdoors. There are two indoor pet relief areas; one is located in the Concourse D/E connector immediately after the checkpoint while the other can be found at the entrance of Concourse C.
  • Any nursing moms traveling through DCA will be happy to know that the airport has several private nursing suites where you can breastfeed your child. There’s one in Terminal A just before the security checkpoints and another two in Terminal B near Touch of Color on National Hall.
  • As long as you don’t plan on staying in Portugal for longer than 90 days, you won’t need a visa to be allowed into the country. However, a passport remains a necessity and it should have at least six months of validity left in it.
See more tips
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Washington, D.C. to Portugal

 
Need help choosing which airline to fly with from Washington, D.C. 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 10818 reviews
8.6Crew
7.9Comfort
8.2Boarding
8.0Entertainment
7.4Food
Airline reviews

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

2.0 MediocreAnonymous, May 2024AVL - LGA
Read more about Delta reviews

The gate area was incredibly short staffed, with one representative manning 4-5 flights, which caused a 3 hr delay in boarding even though the plane was all ready to leave. Other flights also were delayed because of this. The flight crew was awesome and I feel bad for the only gate worker on call, but Delta needs to hire more employees.

Very frustrated with boarding gate crew. She announced the plane was small and they would be limiting us to one item to carry on. Not a problem for me as I understand the tiny planes have limited space!! Not the case here! It was a rather large plane and had plenty of room for bags! So because I don’t want to be one of “those people” who ignores the request to check a carry on I did so asking if I would be able to pick it up at the bottom of the ramp on arrival in Knoxville to which she responded “yes”! Then I watched as every other passenger held onto their 2 items and boarded!! Then when we arrived in Knoxville our 2 carry ons had been put with all the other luggage and we had to go to baggage pick up and wait for all the big checked bags to come off the carousel! So she lied!! Frustrating. Next time I won’t be so nice!

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

Big plane, long flight, absolutely no leg room and basically non existent air! I am 5”4’ and always travel Main Cabin, I was miserable on this plane and could barely move when we arrived in Cabo due to the cramped leg area!

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Food was terrible Not many options Stewards dont care Delay

The ride was good but no food ot entertainment hence, it was just over an hour flight.

they made me check my carryon. There was space in the overhead bins.

The plane was delayed 2 hours. The wifi did not work. The seat in first class was not comfortable because the bottom felt like it lost all of its padding. And I did not like when the flight attendant made me wait at my seat to use the bathroom and didn't tell me why. If there were too many people using the 1st Class bathroom, she should have told me to go in the back, coach bathrooms. I guess I have to feel fortunate that they found 2 local pilots to still fly the plane tonight after the original pilots ended up at an airport 60 miles away due to high winds.

The crew were really great, but the 4 hour delay in small chunks was the worst.

Every experience was good except for the lack of comfort in those economy seats. I never had knee pain until that flight. Those seats are uncomfortable.

I bought internet for the flight. Don’t waste your money. I wasn’t able to download a 1 Mb file from Google Docs during a 3-4 hr period. You can only use WhatsApp and email if you are willing to wait.

Just a crappy airline. The same every time. You feel you are a cow on a farm. You are being being whipped and pulled.

Wasn’t very crowded. Seamless processes. No issues traveling with two little kids.

Great airline, new, comfortable and quiet planes. Plenty of leg room and state of the art entertainment system. The big downside is the connection in Lisbon. The airport is small and a bus is needed from the plane to the terminal. Is a mess, takes a lot of time, nobody gives an explanation, boarding zones are not honored, etc.

I thought Miami's airport was very disorganized during the Boarding.

Very efficient boarding - other airlines could learn from them. Friendly, efficient crew. Red eye flight, so dinner meal was irrelevant. Breakfast could have been more substantial. Seats reasonably comfy.

People seated in exit rows should have designated overhead space

I have been flying internationally for most of like. My first trip with TAP- wonderful! I look forward to flying with them more frequently in the future!

Larger seats on this plane made the ride reasonably comfortable. Our next flight, from Lisbon to Copenhagen, was inconsiderately tight and stressful. The seats were smaller, space between rows was very limited (no button or mechanism to even slightly incline anyone’s seat), and leg-cramping under the seat in front. Just like sardines in a can. Really felt for all the tall Danes on the flight. Their knees were pressed against the seat in front throughout the flight.

Flight was 2+ hrs late boarding. Delay updates were nonexistent. Boarding Gate change was by word of mouth.

The plane was modern and clean. TAP staff at the airport as well as the flight crew were professional, friendly, and helpful. Overall, a great experience.

The airline made last minute changes to our business class seats splitting our family of 4 with young children who had pre-booked a row of 4 seats. The seat was also dirty and sticky. Our pre-ordered child meals were also not available. :(

Awful experience all around, misleading booking led to disgraceful baggage charge at gate. Tiny uncomfortable seats with little drinks served in small paper cups filled halfway. Difficult to use bathrooms the whole flight and now on the way back we’re stuck in Lisbon a day later because of a diversion on our connecting flight, I will never fly this airline again.

Checked in is easy and it was a smooth flight from LAX to Munich

There is no recline on flight from DFW to FRA. Middle eastern airways provide better recline option for the same class. FRA to Bangalore has better recline option. I bid 100$ for premium economy, my request was declined. But staff handled it without issues.

The Lufthansa part was wonderful. The short connection flight was not.

German crew were very kind. Food was okay but can be better, especially bread was not good, Garbage collection was very poor.

Awful Terrible staff poor communication Flight delayed for an hour with no apology or explanation and no help re missing connecting flight. Resulted in a 7 hour layover at Munich waiting for another connecting flight. Only 15 euros refreshment voucher given. Will not fly Lufthansa again

Both flights were late for what appeared to be the airline’s not having the planes ready. Arrived over 6 hours late.

It was a busy flight and all the crew were very helpful and gracious

Seats were not the most comfortable and food options weren’t great but overall but everything else was excellent

Check-in very easy and smooth. Plane and crew were nice. Seat open next to me created more space. Food was fair but plentiful. Lots of movies and I was able to sleep some on the way to Munich. Very tight connection, about an hour. Fast through passport control and a bit of a walk to last G terminal gate but I made my connection to Palma. Unfortunately, my luggage did not make it. It is now almost 24 hours since I anded and still NO luggage. I know it landed last night on another flight. Local delivery should be today to my hotel in Palma but nothing yet. I asked about the tight connection when I checked in and was assured they would get my luggage to the connecting flight. Very disappointing it missed my flight but more disappointing that it has taken so long to arrive. Failure on the airlines and service to get my luggage to date.

I wish the flight attendant was a little bit kinder

We missed the flight to Barcelona because the flight from Baltimore was delayed. We flew on Vueling VW6653. Our luggage didn’t arrive. Please help us get our luggage. We are staying at Hotel Gran Via in Barcelona

The seats were tiny, being of a fairly petite build, I don’t usually expect to feel crammed and cramped in a seat, but I definitely was on this flight. I couldn’t even bend over to get anything out from under the seat in front and getting up to go to the bathroom at night with the seat backs reclined was nearly impossible. I had to do gymnastics to get over and out. For an airline that does long flights overnight, it’s kind of ridiculous.

Not connecting flights. Missed my flight from Dublin to Liverpool because I arrived at Dublin one hour too late. For this mistake, they offered me a flight from Dublin to Manchester. Thats great and all, but I waste time and money to commute to Liverpool. Be sure to check the time of your connecting flights, because they sure don’t when they sell it to you

Excellent! Great flight attendants, good food (in business class, at least), very comfortable. Touchscreen and remote wasn’t great.

In economy and food was ok, but with limited leg space (and I was in a 2 seat configuration) it was difficult to eat with a tiny seat tray. I spilt wine on my trousers. First time on British Air (I usually fly Turkish Air) and in a 777. Heathrow was pleasant but changing terminals awkward.

Starting with the flight Cairo to London the plain was so poor no entertainment at all uncomfortable seats although it’s 5 hours long,then an American airline plain took me from London to Miami it was a bad experience the crew most of flight time not available and they asked us to help our selves for any snacks if we need. From Miami to London actually was perfect flight with a huge plain and perfect crew but from London to Cairo was horrible plain with stiff fixed seats not movable no entertainment or wi fi very poor Menu which is unacceptable for a business class

I've done hundreds of flights in my life, and this flight was one of the best I've ever taken, From beginning to end, everything went smoothly, professionally, and with a smile and friendly attitude from all employees I interacted with. The food was delicious (and free), as were the drinks. There was just a genial and effective way in the way that British Airways organized the flight -that reminded of days in the 70's, 80's, and 90's, when flying was a fun, and exciting adventure. I enjoyed and had confidence in the abilities of the flight crew, I'll be flying British Airways several more times this summer. Thank you so much for the great experience! Cheryl Olso

My baggage did not arrived with me. Took 3 days to get it after so may calls and follow up

Terrible! I missed my flight to my final destination and British airlines and American Airlines keep pointing fingers on each other’s. Nobody wants to take responsibility

Terrible. Flight was 3 hours delayed and I missed my other flight to my final destination

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

Recent round-trip flight deals

10/13Sun
1 stopPLAY
20h 30mBWI-LIS
10/18Fri
1 stopPLAY
25h 20mLIS-BWI
$429
9/1Sun
1 stopPLAY
20h 30mBWI-LIS
9/13Fri
1 stopPLAY
25h 20mLIS-BWI
$494
10/13Sun
1 stopTAP AIR PORTUGAL
12h 00mIAD-PDL
10/22Tue
1 stopTAP AIR PORTUGAL
18h 30mPDL-IAD
$561
10/8Tue
1 stopTAP AIR PORTUGAL
12h 40mIAD-PDL
10/15Tue
1 stopTAP AIR PORTUGAL
14h 15mPDL-IAD
$565
7/14Sun
2 stopsDelta
17h 24mBWI-OPO
7/20Sat
2 stopsDelta
19h 32mOPO-BWI
$702
7/23Tue
2 stopsDelta
15h 00mDCA-OPO
8/1Thu
2 stopsDelta
18h 21mOPO-DCA
$702
6/24Mon
1 stopLufthansa
20h 05mIAD-OPO
9/18Wed
1 stopLufthansa
18h 10mOPO-IAD
$778
6/19Wed
1 stopLufthansa
15h 00mIAD-OPO
9/19Thu
1 stopLufthansa
15h 05mOPO-IAD
$828
7/22Mon
1 stopUnited Airlines
11h 22mIAD-OPO
8/6Tue
2 stopsUnited Airlines
19h 49mOPO-IAD
$838
7/15Mon
1 stopUnited Airlines
11h 22mIAD-OPO
8/6Tue
2 stopsUnited Airlines
30h 11mOPO-IAD
$844

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Recent one-way flight deals

9/7Sat
2 stops
23h 35mBWI-LIS
$299
9/25Wed
2 stops
23h 35mBWI-LIS
$305
7/31Wed
1 stopTAP AIR PORTUGAL
22h 30mIAD-OPO
$459
7/21Sun
1 stopTAP AIR PORTUGAL
19h 10mIAD-OPO
$474
7/21Sun
2 stopsUnited Airlines
17h 55mBWI-OPO
$522
7/21Sun
1 stopUnited Airlines
11h 30mDCA-OPO
$522
7/21Sun
2 stopsDelta
15h 17mIAD-OPO
$539
7/21Sun
2 stopsDelta
15h 00mDCA-OPO
$539
7/26Fri
2 stopsLufthansa
33h 39mIAD-FAO
$543
7/5Fri
nonstopLufthansa
7h 20mIAD-LIS
$1,128

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Last minute flights from Washington, D.C. to Portugal

Last minute flight, train and bus deals

5/7Tue
nonstop
7h 35mIAD-LIS
5/21Tue
multi-stop
24h 45mLIS-IAD
$861
5/6Mon
multi-stop
21h 55mBWI-LIS
5/9Thu
multi-stop
24h 45mLIS-BWI
$865
5/10Fri
multi-stopTAP AIR PORTUGAL
15h 40mIAD-OPO
5/19Sun
multi-stopTAP AIR PORTUGAL
26h 55mOPO-IAD
$920
5/10Fri
nonstopTAP AIR PORTUGAL
7h 15mIAD-LIS
5/24Fri
nonstopTAP AIR PORTUGAL
8h 20mLIS-IAD
$1,003
5/7Tue
multi-stopUnited Airlines
11h 15mIAD-LIS
5/22Wed
nonstopUnited Airlines
8h 25mLIS-IAD
$1,199
5/10Fri
multi-stopLufthansa
20h 00mIAD-OPO
5/19Sun
multi-stopLufthansa
18h 25mOPO-IAD
$1,201
5/10Fri
multi-stopLufthansa
44h 19mIAD-OPO
5/19Sun
multi-stopLufthansa
18h 25mOPO-IAD
$1,254
5/11Sat
nonstopUnited Airlines
7h 15mIAD-LIS
5/27Mon
multi-stopUnited Airlines
29h 15mLIS-IAD
$1,276
5/8Wed
multi-stopDelta
13h 36mIAD-LIS
5/16Thu
multi-stopDelta
17h 52mLIS-IAD
$1,491
5/8Wed
multi-stopDelta
10h 01mIAD-LIS
5/18Sat
multi-stopDelta
16h 41mLIS-IAD
$1,497

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Flights to Portugal

Return flight deals:

Portugal - Washington, D.C.

Cabin classes:

$5,346
$2,407
$2,078
$491