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Find cheap flights from Portugal to the United States from $167

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portugal to the United States departing on 5/23. 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
Tue 6/4
Tue 6/11

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Low season

January

High season

December

Cheapest flight

$167
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Lisbon to Boston

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 to the United States from Portugal 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 to the United States with an airline and back to Portugal 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 to the United States from Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

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 10826 reviews
8.0Entertainment
8.2Boarding
7.9Comfort
8.6Crew
7.4Food
Airline reviews

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!

8.0 ExcellentCynthia, May 2024ATL - TYS
Read more about Delta reviews

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!

Everything was great. The big planes could still stand to have a bit more leg room. Crew was amazing!!

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.

The flight was excellent, I recommend people to fly with Delta

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

The crew were very welcoming and helpful. I just wish economy had a bit more leg room. My knees were constantly hitting the chair in front of me.

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.

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 !

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.

Only water and pretzels served on six hour flight. Did not see crew rest of flight. No video screens and so no wired audio. Poor sound on plan so did not understand anything said by crew. This is a safety issue. Electrical socket did not retain charging block so could not charge phone. No video screen so could not watch movies. Phone is not a substitute.

It was fine. Flight was on time and arrived at destination with 15 min to spare.

My bag was lost with my medicine and I am very inconvenienced. I don’t know what happened, however I want you to do a better job on getting people’s bag back

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The food that was offered based on class level of your ticket was absolutely ridiculous and disgusting. They didn't even hot tea to serve, the food was horrible. On our departure flight I was seated in premium plus economy and considering the cost of the flight the food was literally some of the worst I've ever eaten. On the return flight I sat in economy with extra leg room and was given a thin little throw "blanket" and a flimsy little pillow. The air condition was on artic and the seating arrangement wasn't really worth the money. The seat didn't recline good enough and the foot rest was laughable. Total waste.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the room where it was being kept.

The flight was delayed due to weather issue…WiFi did not work and even though I wanted to pay for WiFi I couldn’t buy it. Overall very disappointing even though I paid and reserved Business class

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

All four American Airlines flights I took in last seven days were delayed. Caused me loads of problems, missed meetings, loss of time and money.

American cancelled our flight home. Zero option for hotel, alternative transportation and took 3 hours to find our bags so we could take a 3 hour UBER ride home on our dime. Never flying AA again.

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

They ocer booked the connecting flight. My bags took a long time to come out, nevertheless I got to the gate in time to board, but they have given my seat to another passenger. They were aware I was connecting from another flight that was a little late, but they did not care. The customer representatives were rude. A horrible experience.

Flight was cancelled had to move to another gate late again no internet paid for the month and never can use it waste of money

Not being able to purchase my check in baggage online was a negative.

LATE LATE LATE!!! Plagued by late AA flights on this trip. Such a drag. This one was by far the worst.

Adequate. You get what you pay for. Absolutely no frills but a cost effective way to travel between European countries.

Disastrous boarding. Entered air bridge only to descend stairs and enter a bus. Plane had insufficient storage, was old and chair recline was damaged. Air stewardess was sullen.

I wish to bring to your attention an incident involving a flight attendant that occurred on my recent journey. The attendant displayed a lack of courtesy, which was concerning. For instance, after accidentally spilling water on a passenger, the attendant dismissed the situation rather than offering a proper apology. Additionally, when I handed over my trash, the attendant reacted negatively because I placed a paper cup on the tray, she told me this doesn't go here and threw it back on my table. It was apparent that she was experiencing a challenging day, which unfortunately impacted the service provided to myself and other passengers. While I understand that everyone can have an off day, it is essential for customer-facing staff to seek support to manage personal stress without it affecting their professional responsibilities.

The flight crew was good, the flight itself was quick and comfortable

Boarding was late by 30 min due to a bus missing to take us to the plane... And then the flight was delayed by about 90 minutes, in a 60 min flight

Very agressive with bags both arrival and departures found minor damage to my luggage including my check bag being broken into nothing of value was in there so I do not believe anything was taken but definitely broken zipper into the outer pockets of suitcase

Everything was nearly perfect, and TAP staff were especially helpful when we missed our connecting flights and had to get on the next flight to Rome. The only aspect that could have been better was boarding: it was somewhat disorganized, which created a bit of stress. But in the end, everyone got on the plane, so the less-then-perfect boarding process did not take away from the overall excellent experience.

TAP Air makes you take a bus on arrival or departure, making it difficult for passengers to make connections.

Two of three flight attendants were not super kind as I would expect. The very kind young lady in my section was wonderful but then lady and man up front were not. Sorry but it makes a difference !

Great staff who were ready working with smile 6 in the morning on New Year’s Day. Although security checkpoint was way too busy, the airline staff were understanding and waited few minutes after boarding. We took off not only exactly on time, but arrived 20 minutes early. Two thumbs up!!!

my original flight was cancelled the previous day, and i was rescheduled onto this flight, which left much earlier in the morning, impacting my previous evening and requiring me to get up much earlier in the morning to get to the airport online. This practice happens way way way too much, and it seems on every airline, though AA is probably the worst.

Spending 10 hours on a flight with no video or wifi access due to issues per stewardess was not enjoyable nor acceptable. Will follow up directly with the airline as well

I really did not like being ordered to pull my shade down by the attendants. One of them was very rude to me about it, standing there until I closed it like I was a child brusquely reaching across me to close an adjoining one. They claim it was so people who wanted to could sleep. It’s a 10:30am flight not a red eye. Closing your shade or leaving it up for natural light should be a choice. Ruined my flight!

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

The crew was very attentive and kept busy serving a variety of treats!

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

Offered vegetable curry when it was actually tofu which I don’t care for.

The flight was good the crew excellent…but take off delayed three hours!!!

Both mine and my husband's chairs were broken. Also it took 2 hours to get our bags after our flight which was wild.

perhaps eye contact with the cabin crew, instead of abruptness and an impatience to serve.

Book cheap flights from Portugal to the United States

Recent round-trip flight deals

5/30Thu
1 stop
13h 55mLIS-MIA
1/8Wed
1 stop
15h 15mMIA-LIS
$400
5/25Sat
1 stopBritish Airways
25h 00mLIS-MIA
1/11Sat
1 stopBritish Airways
15h 25mMIA-LIS
$401
6/4Tue
2 stopsDelta
19h 20mOPO-MIA
6/11Tue
2 stopsDelta
20h 25mMIA-OPO
$424
6/9Sun
1 stopDelta
15h 40mOPO-MIA
6/25Tue
1 stopDelta
12h 25mMIA-OPO
$429
9/23Mon
1 stopTAP AIR PORTUGAL
14h 50mOPO-MIA
10/14Mon
1 stopTAP AIR PORTUGAL
12h 25mMIA-OPO
$431
9/23Mon
1 stopTAP AIR PORTUGAL
14h 50mOPO-MIA
10/14Mon
1 stopTAP AIR PORTUGAL
27h 00mMIA-OPO
$432
6/4Tue
1 stopUnited Airlines
13h 40mOPO-MIA
6/11Tue
2 stopsUnited Airlines
33h 52mMIA-OPO
$469
6/10Mon
1 stopAmerican Airlines
12h 50mLIS-MIA
6/24Mon
1 stopAmerican Airlines
24h 55mMIA-LIS
$484
5/28Tue
1 stopAmerican Airlines
13h 55mLIS-MIA
6/4Tue
2 stopsAmerican Airlines
21h 11mMIA-LIS
$485
6/4Tue
1 stopUnited Airlines
14h 40mOPO-EWR
6/11Tue
nonstopUnited Airlines
6h 55mEWR-OPO
$487

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Recent one-way flight deals

5/23Thu
1 stopVueling
28h 15mLIS-BOS
$167
5/21Tue
2 stopsVueling
52h 50mLIS-BOS
$185
6/18Tue
1 stopTAP AIR PORTUGAL
14h 35mOPO-MIA
$365
6/10Mon
1 stopTAP AIR PORTUGAL
25h 45mOPO-MIA
$366
6/22Sat
1 stopBritish Airways
25h 00mLIS-MIA
$449
10/5Sat
2 stopsAmerican Airlines
17h 00mLIS-MIA
$452
6/1Sat
1 stopAmerican Airlines
29h 50mLIS-MIA
$453
6/22Sat
2 stopsBritish Airways
26h 54mLIS-MIA
$457
5/25Sat
2 stopsUnited Airlines
17h 31mLIS-LGA
$680
5/30Thu
2 stopsUnited Airlines
22h 30mOPO-LGA
$681

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Last minute flights to the United States

Last minute flight, train and bus deals

5/10Fri
multi-stop
17h 20mLIS-JFK
5/17Fri
multi-stop
16h 10mJFK-LIS
$495
5/9Thu
multi-stopAmerican Airlines
13h 05mLIS-JFK
5/30Thu
multi-stopAmerican Airlines
22h 30mJFK-LIS
$535
5/9Thu
multi-stopBritish Airways
17h 00mLIS-EWR
5/30Thu
multi-stopBritish Airways
13h 15mEWR-LIS
$575
5/10Fri
multi-stopBritish Airways
17h 00mLIS-EWR
5/17Fri
multi-stopBritish Airways
21h 00mEWR-LIS
$601
5/9Thu
multi-stopDelta
14h 25mLIS-JFK
5/30Thu
nonstopDelta
7h 05mJFK-LIS
$617
5/7Tue
multi-stopUnited Airlines
32h 23mLIS-MIA
5/20Mon
multi-stopUnited Airlines
18h 35mMIA-LIS
$640
5/7Tue
nonstopUnited Airlines
8h 10mOPO-EWR
5/13Mon
nonstopUnited Airlines
6h 55mEWR-OPO
$650
5/10Fri
multi-stopDelta
13h 41mLIS-LGA
5/17Fri
multi-stopDelta
14h 00mLGA-LIS
$756
5/7Tue
multi-stopTAP AIR PORTUGAL
14h 35mOPO-MIA
5/15Wed
multi-stopTAP AIR PORTUGAL
14h 05mMIA-OPO
$854
5/7Tue
multi-stopTAP AIR PORTUGAL
18h 15mOPO-MIA
5/15Wed
multi-stopTAP AIR PORTUGAL
14h 05mMIA-OPO
$1,011

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Flights to the United States

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United States - Portugal

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$1,325
$971
$267

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