$378 Find Cheap Flights from Portugal to District of Columbia

1 adult
1 adult, Economy, 0 bags

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, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to District of Columbia, as well as popular online travel agencies
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Booking Insights

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 $633 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 $633.

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 January, when tickets cost $544 (return) on average. On the other hand, the most expensive months are July and October, when the average cost of round-trip tickets is $1,014 and $927 respectively.

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

The average price for all round-trip flights from Portugal to District of Columbia depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

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 30% 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 $855.

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 $840.

Good to know

Low seasonFebruary
Cheapest flight$378
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 11% 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 Sunday where round-trip tickets can be as cheap as $670. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $1,005 on average.

Reviews of the top 3 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.
7.8
KLMOverall score based on 1475 reviews
8.4Crew
7.8Boarding
7.6Comfort
7.1Entertainment
7.3Food
Airline reviews

It was really nice journey i personally recommend klm flight

10.0 Excellentsmit, Mar 2026
AMD - BLR
Read more KLM reviews

It was really nice journey i personally recommend klm flight

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

Crew is not the cheerful type. very slow meal service (this is their style as have flown this many times)

Empty seats next to me - wish it had been for a longer flight!!

Flight was on time, staff are friendly and helpful onboard.

Terrible last row seats many seats available but no offer to move to better seat

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

At the airport, terrible, I do not want to even remember it. It was too humiliating for a business class passenger.

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

Offered to check carry on to final destination. This is the most absurd thing in the world. I'm carrying on because I need what is in the carry-on. I'm okay with picking up at next stop but then I will be on much larger plane that can accommodate it. Also, if there is ever a change to your flight. Go to the airport and have the people there fix your ticket. Don't do it over the phone or online with United they screwed us up and ended up with flights for our last leg that took off before our first leg.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

It was okay, the food was good, but after the landing there was not enough time for luggage and security to catch a connection. It was crowded on board.

When I went to check in at the United counter in Barcelona, Spain I had 2 different menat 2 different times in United uniforms (standing around with a couple other employees) ask me if I was traveling alone. The one man asked me 3 different ways if I was traveling alone. I am, 68 yeaers old and have all my faculties. I thought it was weird and it made me feel very uncomfortable. What difference does it make if I was traveling alone or with someone? What if I was a recent widow? That would have been horrible. They never gave me a reason why they needed to know who I was traveling with. I was hesitant to question them because I needed to be on that flight.

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

Fine not above and beyond as I had a connection that was delayed due to maintenance

Bad food, bad service, cold cabin with no additional blankets when asked for (they told me they don’t provide additional blankets). I’m a frequent traveler and this is one of the worst companies I traveled with (by the way I thought that I booked my ticket with Lufthansa but I didn’t see that the flights were handled by United).

Great other than a couple very drunk guys that for a while kept bumping my seat from behind. The staff did their best to control them. Even refused serving them alcohol and allowed the gal sitting next to them to move.

Good crew. Boarding delays. Almost two hours wait for the bags in DC.

The crew was great. There was a big guy sitting next to me who was hanging over my side of the armrest the entire time. Maybe some information about "Be considerate of your neighbors, this is tight space, be kind". The breakfast sandwich was not appealing at all.

Kayak let me choose these flights on TAP but then after 2 months, cancelled my flights because they didn't think 90 minutes was enough time for the connection. I notice that neither flight was actually cancelled. Just my reservation. Why let me go through all of that effort to find the right flights for us, only to cancel it from underneath us 2 months later leaving us scrambling to find an alternative?

It was a good experience overall. We were however delayed by over 3 hours due to a security issue with one of the passengers inadvertently leaving a power bank in a luggage she was using as carrying on but then had to be moved int check in due to spacing issues. The airline staff had requested that she checked her bags in, but should have reminded her about removing all hazardous material like her power bank. When she eventually remembered as we were on the plane, we had to turn back and go through security all over again. Hence delaying our takeoff. The incident could have been prevented if staff reminded these passengers to remove their power banks.

this flight was awful from pre-boarding to on the plane. There needs to be more coordination between TAP and My Way. We were in first class and I am handicapped. BY the time we got on the plane there was no place for our baggage and the crew did not handle the situation well. They gave us an argument and said that we'd have to have it checked. Then, after I complained they moved some people's bags to put our small carry ons several seats back of our seats which were in Row 4.

Bad. They gave me a voucher for food to use at the airport but didn’t have time since I had to catch the other plane. No refunds and lack of communication

Negative. Food was awful, seat broken, flight was late, baggage lost and damaged

The ground staff did not load my bag onto the plane and despite me watching from the bus that my bag is not being loaded and taken back on the cart to the terminal, I pointed out to the staff and ge laughed upon checking my tag and knowing they made a mistake. Instead of calling the cart back and loading it he said we can’t fo anything and you should file a report upon landing at RAK. I told them my stay there is short and i needed my bag as it had everything I needed but no avail. Even the pilot was informed, staff of the plane was aware but all in don’t care mode. Upon arriving at Marrakech RAK, i filed a report and being told it might come in next flight tomorrow and we don’t provide delivery service, you must come and pick it up. If it doesn’t arrive on time then it will be sent to your home in the US. Unbelievable stress and inconvenience that could have been easily prevented by the ground staff.

The cabin crew were curt, not with me, but observed with other passengers. They were unduly rude and it was unprovoked and when they realized they were wrong, they made no attempt to apologize for their own confusion.

I was disappointed of the crew, not friendly and attentive. Delay one way for fuel leakage and the plane is so hot. Not that great all around but I’m glad I experienced it so now know better.

Flew Business class and did not like anything, flight attendants were rude and not helpful. Food was of poor quality and I did not eat meals.

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.