$171 Find Cheap Flights from Portugal to the United States

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KAYAK's insights & trends for flights to the United States

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

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 $330 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 $330.

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 $1,120 and $986 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 seasonMarch
High seasonDecember
Cheapest flight$171
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly and prices are also 2% lower on average.
Flight from Lisbon to New York John F Kennedy Airport

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 $743. On the other hand, the most expensive day to fly is Monday, where round-trip prices are $842 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.

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 7963 reviews
7.9Comfort
8.5Crew
7.9Entertainment
7.3Food
8.2Boarding
Airline reviews

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

4.0 OkayKoonj, Jun 2025MSP - AUS
Read more Delta reviews

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

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.

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

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 and no wifi. Prepare to disembark by a staircase.

Gate agent did not hold flight for connection, provided no assistance to get new flight

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

United airlines, mediocre at best. No issues , nothing great . Worked for me

Efficient, calm when things were delayed and kept us regularly informed of what was happening.

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

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

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.

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 the United States

Recent round-trip flight deals

9/10Wed
1 stop
28h 30mLIS-JFK
9/28Sun
1 stop
16h 00mJFK-LIS
$354
11/21Fri
1 stop
14h 15mOPO-JFK
11/27Thu
1 stop
13h 20mJFK-OPO
$405
11/13Thu
1 stopDelta
14h 50mLIS-MIA
11/17Mon
1 stopDelta
15h 25mMIA-LIS
$451
10/3Fri
nonstopTAP AIR PORTUGAL
8h 05mLIS-JFK
10/8Wed
nonstopTAP AIR PORTUGAL
7h 00mJFK-LIS
$452
10/8Wed
nonstopTAP AIR PORTUGAL
8h 00mLIS-EWR
10/13Mon
nonstopTAP AIR PORTUGAL
6h 55mEWR-LIS
$452
9/18Thu
1 stopDelta
13h 35mLIS-MIA
10/22Wed
1 stopDelta
13h 40mMIA-LIS
$452
10/15Wed
1 stopBritish Airways
13h 30mLIS-MIA
10/22Wed
1 stopBritish Airways
16h 05mMIA-LIS
$472
9/5Fri
1 stopBritish Airways
11h 50mOPO-JFK
9/9Tue
1 stopBritish Airways
18h 25mJFK-OPO
$473
9/1Mon
2 stopsUnited Airlines
36h 27mOPO-LGA
9/8Mon
1 stopUnited Airlines
13h 05mLGA-OPO
$505
9/11Thu
2 stopsUnited Airlines
33h 40mOPO-EWR
9/19Fri
2 stopsUnited Airlines
30h 51mEWR-OPO
$512

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Recent one-way flight deals

10/1Wed
1 stop
28h 30mLIS-JFK
$171
10/1Wed
1 stop
28h 30mLIS-JFK
$175
6/24Tue
nonstopTAP AIR PORTUGAL
8h 00mOPO-EWR
$319
6/25Wed
nonstopTAP AIR PORTUGAL
8h 00mOPO-EWR
$326
9/1Mon
1 stopBritish Airways
26h 20mLIS-MIA
$485
9/30Tue
2 stopsBritish Airways
17h 07mLIS-MIA
$500
9/3Wed
2 stopsDelta
18h 26mLIS-EWR
$558
9/3Wed
2 stopsDelta
18h 26mLIS-EWR
$559
7/1Tue
2 stopsUnited Airlines
34h 53mOPO-LGA
$749
7/20Sun
1 stopUnited Airlines
12h 10mOPO-LGA
$755

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Last minute flights to the United States

Last minute flight, train and bus deals

6/21Sat
multi-stopBritish Airways
15h 20mOPO-JFK
7/7Mon
multi-stopBritish Airways
17h 55mJFK-OPO
$516
6/21Sat
multi-stopBritish Airways
15h 20mOPO-JFK
7/7Mon
multi-stopBritish Airways
22h 51mJFK-OPO
$551
6/21Sat
multi-stopDelta
11h 55mOPO-JFK
7/6Sun
multi-stopDelta
16h 25mJFK-OPO
$571
6/19Thu
nonstopKLM
7h 50mLIS-JFK
6/23Mon
multi-stopKLM
12h 50mJFK-LIS
$580
6/19Thu
multi-stopDelta
14h 20mLIS-EWR
6/23Mon
multi-stopDelta
10h 50mEWR-LIS
$581
6/19Thu
multi-stopKLM
11h 50mOPO-JFK
6/22Sun
multi-stopKLM
12h 00mJFK-OPO
$587
6/19Thu
nonstopTAP AIR PORTUGAL
8h 00mOPO-EWR
8/22Fri
multi-stopTAP AIR PORTUGAL
10h 25mEWR-OPO
$599
6/19Thu
nonstopUnited Airlines
7h 55mOPO-EWR
6/23Mon
nonstopUnited Airlines
7h 05mEWR-OPO
$662
6/18Wed
multi-stopUnited Airlines
13h 11mLIS-LGA
6/22Sun
multi-stopUnited Airlines
19h 03mLGA-LIS
$663
6/19Thu
nonstopTAP AIR PORTUGAL
9h 10mLIS-MIA
7/4Fri
nonstopTAP AIR PORTUGAL
8h 15mMIA-LIS
$763

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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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