$159 Find Cheap Flights from Portugal to the United States

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What is the cheapest flight to the United States?

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

The cheapest ticket to the United States from Portugal found in the last 72 hours was to Newark Airport, at $343 round-trip. The most popular route is Faro (FAO) to Newark Airport (EWR) and the cheapest round-trip airline ticket found on this route in the last 72 hours was $343.

What is the cheapest month to fly from Portugal to the United States?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Portugal to the United States, 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 the United States is February, when tickets cost $757 (return) on average. On the other hand, the most expensive months are August and July, when the average cost of round-trip tickets is $1,107 and $987 respectively.

How far in advance should I book a flight from Portugal to the United States?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to the United States, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Portugal to the United States, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Which is the cheapest airport to fly into in the United States?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in the United States is Tampa Airport (TPA), with an average flight price of $75.


Good to know

Low seasonFebruary
High seasonDecember
Cheapest flight$159
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Lisbon to Boston

Flights from Portugal to the United States: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Portugal to the United States 
HFlew with Azores AirlinesPDL-BOSDec 2024
Expect to walk up the stairs on the plane as the ponta drlgado has no air bridge
AmirFlew with TAP AIR PORTUGALLIS-SFOJul 2024
For any flight that's part of a Multi-City flight plan, don't miss it. Otherwise, all your remaining flights on that plan will be terminated.
SheenaLIS-BOSJun 2024
Be easy for the longer lines for passports and going through customs. Give your self plenty of time.
DavidFlew with TAP AIR PORTUGALLIS-MIAMar 2024
There are other airports like Seville, Barajas, Orly, Charles de Gaulle, etc. that connect the planes directly to the terminal. No need for the extra tour bus.

FAQs for booking flights from Portugal to the United States

  • How does KAYAK find such low prices on flights from Portugal to the United States?

    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 the United States.

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

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

    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 the United States 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 the United States?

    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 the United States 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 the United States?

    Based on KAYAK data, the cheapest day to fly to the United States is Wednesday where round-trip tickets can be as cheap as $744. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $840 on average.

  • What is the cheapest time of day to fly to the United States?

    The cheapest time of day to fly to the United States is generally at night, when round-trip flights cost $378 on average. Morning departures are around 16% more expensive than evening flights, on average. The most expensive time of day to fly to the United States is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,167.

Reviews of the top 5 airlines serving from Portugal to the United States

 
Need help choosing which airline to fly with from Portugal to the United States? 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 7952 reviews
8.5Crew
7.3Food
8.2Boarding
7.9Comfort
7.9Entertainment
Airline reviews

Very late arrival at PWM. Late jet getting to ATL. Equipment problem with aircraft - could not get enough water onto plane., Another delay getting FAA approval for flight with bottled H2O. Not the crew’s problem.

4.0 OkayJames, Jul 2025MSN - ATL
Read more Delta reviews

Very late arrival at PWM. Late jet getting to ATL. Equipment problem with aircraft - could not get enough water onto plane., Another delay getting FAA approval for flight with bottled H2O. Not the crew’s problem.

Everything was fine except the entertainment was not working for half of the flight.

Easy boarding with an extremely kind attendant. Seats were spacious and we had 3 seats for 2 people so we could stretch out. Comfortable air flow and very attentive and hospital attendants. Bathrooms and food were the only negative. Bathrooms were so small you could hardly get in and close the door. I don’t think an obese person would fit or a person with a movement disability. Food was the trending food for flights, nonexistent. We spent $40 getting sandwich and snack at airport for our 6 hour flught.

At first, we were on the runway for about an hour, literally. The Captain did explain that the Control Tower just had a change shift (sounds like an unrealistic excuse) and then that we had to change a runway. A regular economy seat is made for 12 yo twiggy. I understand Delta wants to push for an upgrade, but after sitting in a Comfort seat and in First class. I would say First class is not worthy of my money. The landing was delayed because of the weather in NYC, I don't hold that against Delta, of course. The Captain did alert us to that upon takeoff in Vegas and again as we reached NY.

No one fussed at me about my pap machine as a 3rd pice on the plane. Boarding was pleasant and smooth. The boarding agent in Anchorage was a fun character- he could be in a movie. :~) The on-board crew were downright pleasant. No militant attitudes on Delta. Like all planes these days the seats are too narrow for standard Americans and at 5’2” there is barely enough leg room. I don’t know how tall people fold themselves into the seats. But that’s nothing specific to Delta

Leaving on time and having my luggage on my connecting flight

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

My flight was extremely cold. I had a jacket and a cover was left in each seat. The cover was extremely thin and I have a disability, fibromyalgia and arthrithis and AC air is the worst. I closed my vent and my husbands vent and it still was frigid. I asked the attendant if I could get another cover and she quickly almost dismissively and totally unconcerned stating, (I quote) (one per chair) and walked off so quickly that I didn't get a chance to explain to her that I literally have adisability. I didnt want to make a seen so I set on that flight for over 5 hours in pain, joints locking up and extremely uncomfortable. When my fibromyalgia flares up my joints not only ache but they will lock up also and it takes me days to get back to my regular self even though I take medication for it. I felt like it would not have hurt anyone at all for her to just give me an extra cover because I'm sure they have all types of medical issues in people that fly every day.

After all the weather issues at least they got me to my destination the next day

My flight was canceled after being rescheduled for four days canceling my trip. Kayak and everyone affiliated with it I.e the airlines, and just fly have been excruciating to deal with. My trip to visit family had to be canceled as there was no way to make it. I am furious at all of you.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Klm start boarding while somw air issue in the plan

The service was great. However the lounge only gets passing grade

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

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

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

I would have liked an opportunity to move to a different seat ( even would have checked in my hand luggage)as I had health issues where I didn't have to clamber over the passenger next to me to for toilet use/ movement [ She was a highly unpleasant neighbor to sit next to]. In addition, I found that my European phone plan had run out of data and so I was not receiving emails from yourselves on airport wifi to be able to check in online and verifications difficult as did not accept the ticket number I had. I asked for an extra blanket but was told there was none. Then I saw other passengers receiving them. I couldn't eat the food and asked for snacks : Stewardess said " on the way" but they did not bring. The best bit was the check in process in Lisbon. Very efficient. However, I did not understand why we had to collect our bags at Washington then go through customs again. It was not explained. I also with my leg and health issue had approximately mile walk to the gate ( which then changed) . There appeared to be no moving walkways or help provided.

More racist flight attandants maybe because i sm an attracticted darkskin latino man but once again bad flight attamdants they ignored me the whole flight even the woman sitting next to me notice how rude they were towards me i really never want to fly united or american airlines they alawsys have the rudesslt and racist flight attandants

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

We loved the United lounge near our gate and a rep named Aimee who was GREAT

Overall it was good. I missed my connection but I was put on another flight.

The attendant were friendly. I suggest you have a medical attendant on board every flight so that in case someone is sick , he/she will help them.

The woman gate agent in Phoenix was none too sympathetic about my check-in process as I am relatively new with using apps. I almost did not get on because she said I did not check-in. I thought I had via Kayak where I purchased a very expensive ticket. Lesson learned but to be told I may not get on as a matter of factly was difficult to hear.

Overall a very poor experience - booked premium economy tickets but due to last minute flight delays , all my itinery went for a toss and had to fly economy class with no access to lounge or any compensation by united airlines to make up for the flight delays . i had expected better experience than that from united.

Flight being delayed for 35 minutes had me lose the connection to my transport

Was the best airplane ✈️ ever that I never see I will traveling again again with u guys.

Flight was delayed on 6/20 to miss international connection. Next flight out was 24 hours later. Not acceptable.

Flight from FNC to OBO was cancelled. We were rebooked to Lisbon later in the day. It was inconvenient but it worked out ok in the end.

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.

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

3/4 bags delayed and 1/4 damaged at the other end. Flight was freezing

The crew were good. The flight was on time. The entertainment choice was ok. But the food was bad, tasted and texture were awful.

After boarding we were waiting in the plane for more than one hour to take off without AC with very high temperature inside

The flight was an hour late leaving Heathrow. The food was mediocre. When we got to Austin, my husband’s luggage was missing. He filled out information at baggage claim. We are waiting to hear something. His name is Henry Jacob Braunig.

The food was very good and it came multiple times

Flight from LGW to JFK delayed by 4 hrs No explanation given until the pilot said the delay due to planned maintenance on the aircraft

We arrived late to London, and consequently were 5 min. late to be allowed through security for our next flight. Even though dozens of people missed the same flight, BA did not radio ahead to hold open security for an extra 5-10 min. to allow people to get on the flight. This caused an additional 6 hour delay in London after waiting over an hour in Customer Service to get rebooked. They did not have enough staff on hand to help people in a timely manner. Not at all happy with the BA's customer care or customer service.

All service prior to the flight was terrible: online check-in not working, no customer service tel,, multiple airport scanners not working, A huge mess.

CONSTANT ERROR MESSAGE THAT THE WIFI COULD NOT BE PURCHASED DUE TO INABILITY TO CONNECT PAYMENT SYSTEM VIA SATELLITE. THIS HAPPENED IN BOTH DIRECTIONS. THE MAIN REASON I TRAVEL IN PRIORITY IS TO BE ABLE TO WORK FOR WHICH I NEED ACCESS TO INTERNET. .

They lost my luggage. Lady who was helping with it in Austin was rude. Not very helpful!

Book cheap flights from Portugal to the United States

Recent round-trip flight deals

10/15Wed
1 stop
17h 05mLIS-BOS
10/19Sun
1 stop
12h 10mBOS-LIS
$342
11/23Sun
1 stopScandinavian Airlines
30h 10mLIS-MIA
12/4Thu
1 stopScandinavian Airlines
15h 10mMIA-LIS
$373
9/23Tue
nonstopTAP AIR PORTUGAL
8h 00mOPO-EWR
9/30Tue
1 stopTAP AIR PORTUGAL
10h 25mEWR-OPO
$488
10/3Fri
nonstopTAP AIR PORTUGAL
8h 00mOPO-EWR
10/9Thu
1 stopTAP AIR PORTUGAL
10h 35mEWR-OPO
$490
11/13Thu
1 stopDelta
14h 50mLIS-MIA
11/24Mon
1 stopDelta
14h 10mMIA-LIS
$495
8/30Sat
1 stopBritish Airways
18h 20mLIS-MIA
9/15Mon
2 stopsBritish Airways
15h 41mMIA-LIS
$500
9/18Thu
1 stopDelta
13h 35mLIS-MIA
10/22Wed
2 stopsDelta
19h 00mMIA-LIS
$502
11/25Tue
1 stopUnited Airlines
14h 40mLIS-MIA
12/10Wed
2 stopsUnited Airlines
15h 15mMIA-LIS
$506
8/28Thu
1 stopBritish Airways
12h 37mLIS-MIA
9/14Sun
1 stopBritish Airways
35h 00mMIA-LIS
$508
9/25Thu
2 stopsUnited Airlines
18h 46mLIS-MIA
10/7Tue
1 stopUnited Airlines
16h 15mMIA-LIS
$511

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Recent one-way flight deals

9/24Wed
1 stop
28h 05mLIS-BOS
$159
10/29Wed
1 stop
27h 45mLIS-BOS
$163
10/15Wed
1 stopIberia
12h 15mLIS-BOS
$204
10/10Fri
1 stopIberia
17h 05mLIS-BOS
$205
10/5Sun
1 stopVueling
13h 10mLIS-BOS
$236
10/3Fri
1 stopVueling
17h 05mLIS-BOS
$241
10/28Tue
1 stopAzores Airlines
19h 05mLIS-BOS
$334
1/5Mon
1 stopAzores Airlines
19h 05mLIS-BOS
$341
9/23Tue
1 stopAir Transat
16h 50mOPO-EWR
$374
9/21Sun
1 stopAir Transat
16h 50mOPO-EWR
$378

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Last minute flights to the United States

Last minute flight, train and bus deals

7/15Tue
multi-stopDelta
12h 15mLIS-JFK
7/29Tue
multi-stopDelta
11h 10mJFK-LIS
$627
7/15Tue
multi-stopDelta
13h 20mLIS-JFK
8/3Sun
nonstopDelta
7h 10mJFK-LIS
$631
7/15Tue
multi-stopDelta
12h 15mLIS-JFK
8/3Sun
multi-stopDelta
12h 15mJFK-LIS
$635
7/11Fri
multi-stopKLM
13h 45mOPO-JFK
7/15Tue
multi-stopKLM
10h 55mJFK-OPO
$650
7/15Tue
multi-stopUnited Airlines
12h 05mLIS-LGA
8/4Mon
multi-stopUnited Airlines
10h 35mLGA-LIS
$655
7/15Tue
multi-stopUnited Airlines
10h 34mLIS-LGA
8/2Sat
multi-stopUnited Airlines
10h 06mLGA-LIS
$659
7/11Fri
multi-stopKLM
13h 45mOPO-JFK
7/14Mon
multi-stopKLM
10h 55mJFK-OPO
$671
7/15Tue
multi-stopTAP AIR PORTUGAL
28h 05mLIS-EWR
7/27Sun
nonstopTAP AIR PORTUGAL
6h 55mEWR-LIS
$778
7/15Tue
multi-stopTAP AIR PORTUGAL
28h 05mLIS-EWR
7/20Sun
nonstopTAP AIR PORTUGAL
7h 00mEWR-LIS
$781
7/11Fri
multi-stopBritish Airways
12h 48mLIS-BOS
7/15Tue
multi-stopBritish Airways
12h 05mBOS-LIS
$947

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Everything you need to know for your flight to the United States

Cabin class types available on flights to the United States

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

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