£420 Find Cheap Flights from Portsmouth to the United States

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Good to know - Cheap tickets from Portsmouth to the United States

Low seasonJanuary
High seasonJuly
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly (23% more expensive on average)

FAQs for booking flights from Portsmouth to the United States

  • How does KAYAK find such low prices on flights from Portsmouth 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 Portsmouth to the United States.

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to the United States with an airline and back to Portsmouth with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portsmouth 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 Portsmouth up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top 4 airlines serving from Portsmouth to the United States

 
Need help choosing which airline to fly with from Portsmouth 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.
7.8
KLMOverall score based on 1358 reviews
7.2Food
7.1Entertainment
7.8Boarding
7.7Comfort
8.4Crew
Airline reviews

Klm start boarding while somw air issue in the plan

8.0 ExcellentA, Jun 2025AMS - YYZ
Read more KLM reviews

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.

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

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

You should not have to pay for WiFi in business class

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

Super friendly and helpful staff, from check-in desk to cabin crew.

Following a paid seat upgrade for enhanced comfort, I encountered an unacceptable odor in my assigned area. It took three hours for the crew to relocate me, and the replacement seat was unacceptably close to the lavatory, offering no improvement.

Good overall. Cannot fault the airlines. I have had better entertainment systems before ie ice in Emirates but it was not too bad. Food was decent and staff were friendly.

I did not fly by vergin atlantic from bangalore to vasco da gama

Your flight delayed at Heathrow n I almost missed my mother funeral.you idiots. I had to waste 10 hours in different airports. Thank your stars I'm not suing you.

Miami airport needs more thorough signage. It was a long walk from my transport point to the check in desk,

Flight took off an hour late. Had to stay on the tarmac for half an hour after landing. Both annoying.

We had an unfortunate experience where we had to leave the aircraft after boarding, shortly before the scheduled takeoff time, and re-board. The reason given was that a passenger felt ill and had to cancel their plans and therefor their luggage had to be found and removed.

We’ve used VA before many times the experience is always been good they have lovely staff and the food is always delicious.

Everything about the flight was amazing from check in to boarding entertainment was okay food we didn’t try.

I would definitely use a Linus again, the price was right, the service is excellent. No delays. Wish I had a direct flight from my hometown Detroit.

There was no room in the seats, smallest room we've ever had and the food was awful.

i used to fly aer Lingus regularly but due to price - poor seating etc i have been using other carriers - i now have aer lingus in my state and the price is always the highest - i have flown to Ireland 11 times in last 24 months and have not used Hartford because of price

Nicest staff I’ve experienced on a plane! Good food, great entertainment, and they gave out little blankets that my kids loved. All in all, great experience.

The Glasgow to Dublin route was very efficiently boarded, flight and landing and disembarkation were all super smooth. Dublin to JFK flight I was very pleasantly surprised overall. This was my first time on Aer Lingus and having already come off the short regional flight I was curious to know how the international flight would go. Aircraft was solid, entertainment options were better than expected, flight crew were experienced and operated like clockwork. Main entree left a little something to be desired but the snack was very tasty. Boarding and disembarkation again very smooth and pilots got us in earlier than expected. Would definitely fly again

Unfortunately the flight was delayed for 50 min. Just as we were about to board so that was a drag. The boarding was average. The bag check in process was new to us and efficient. And the flight itself was smooth- basically no turbulence.

I liked how they looked after couples by providing a row of 4 seats if available.

It was ok not that much because I always travel with Emirates airlines, Etihad, airlines, Qatar airlines compare to them food and comfortable was too low . Staff was good . Helpful

I believe it was short flight in plane I understand not that much compared to other airlines but weighting for checkin was too long need extra person for checkin or Atleast someone to let the customer knows don’t worry someone will be here shortly.

Noted in last review. Good to know, though air Lingus on European flights does not offer any food or drink, even though we were on the plane for 3 1/2 hours from Naples to Dublin everything you had to purchase even water.

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.

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.

Boarding was fairly chaotic. One of your employees clipped my ankle as he was passing with an empty wheelchair and not only did not apologize but stated something to the effect of “oh forGod’s sake.” There was plenty of room for him to pass. otherwise, everything was excellent.

Fantastic! Great seats! Friendly staff! Amazing selection of shows and movies! Smooth ride! I don’t know what more I could have asked for honestly. They made flying a breeze this time around.

Book cheap flights from Portsmouth to the United States

Cheapest flights to the United States from Portsmouth found in 2025

Recent return flight deals

2/7Wed
1 stopKLM
18h 30mSOU-JFK
7/7Mon
1 stopKLM
26h 55mJFK-SOU
£420
22/6Sun
1 stopKLM
29h 40mSOU-JFK
7/7Mon
1 stopKLM
10h 20mJFK-SOU
£425
2/7Wed
2 stopsDelta
15h 39mSOU-LGA
8/7Tue
2 stopsDelta
13h 46mLGA-SOU
£428
2/7Wed
2 stopsDelta
18h 01mSOU-JFK
8/7Tue
1 stopDelta
10h 15mJFK-SOU
£428
8/7Tue
1 stopVirgin Atlantic
26h 00mSOU-JFK
15/7Tue
1 stopVirgin Atlantic
30h 35mJFK-SOU
£442
8/7Tue
1 stopVirgin Atlantic
26h 00mSOU-JFK
14/7Mon
1 stopVirgin Atlantic
26h 55mJFK-SOU
£443
27/7Sun
2 stops
38h 53mSOU-LGA
3/8Sun
2 stops
20h 45mLGA-SOU
£532
16/7Wed
1 stop
12h 10mSOU-EWR
23/7Wed
2 stops
23h 00mEWR-SOU
£570
27/7Sun
1 stopAer Lingus
15h 10mSOU-JFK
3/8Sun
1 stopAer Lingus
11h 15mJFK-SOU
£612
16/7Wed
1 stopAer Lingus
15h 10mSOU-JFK
23/7Wed
2 stopsAer Lingus
18h 25mJFK-SOU
£649

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Recent one-way flight deals

10/10Fri
2 stops
31h 15mSOU-JFK
£192
8/9Mon
1 stop
17h 25mSOU-LAX
£232
10/10Fri
1 stop
30h 35mSOU-EWR
£261
17/9Wed
1 stopAer Lingus
14h 45mSOU-SFO
£403
20/10Mon
1 stopAer Lingus
14h 40mSOU-JFK
£406
14/9Sun
1 stopDelta
26h 00mSOU-JFK
£1,081
10/9Wed
1 stopDelta
18h 30mSOU-JFK
£1,085
26/7Sat
1 stopVirgin Atlantic
14h 45mSOU-JFK
£1,361
26/7Sat
2 stopsKLM
39h 30mSOU-LGA
£1,380
27/7Sun
2 stopsVirgin Atlantic
43h 05mSOU-EWR
£6,518

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Last minute flights from Portsmouth to the United States

Last minute flight, train and bus deals

13/6Fri
multi-stopDelta
10h 15mSOU-JFK
15/6Sun
multi-stopDelta
11h 10mJFK-SOU
£1,386
15/6Sun
multi-stopDelta
25h 25mSOU-LAX
23/6Mon
multi-stopDelta
17h 00mLAX-SOU
£1,438
15/6Sun
multi-stopDelta
34h 30mSOU-LAX
24/6Tue
multi-stopDelta
20h 00mLAX-SOU
£1,439
15/6Sun
multi-stopDelta
27h 20mSOU-MIA
26/6Thu
multi-stopDelta
32h 23mMIA-SOU
£1,448
13/6Fri
multi-stopDelta
29h 15mSOU-LAX
25/6Wed
multi-stopDelta
31h 55mLAX-SOU
£1,468
13/6Fri
multi-stopDelta
29h 15mSOU-LAX
26/6Thu
multi-stopDelta
34h 55mLAX-SOU
£1,473
13/6Fri
multi-stopDelta
28h 10mSOU-MIA
26/6Thu
multi-stopDelta
32h 23mMIA-SOU
£1,477
13/6Fri
multi-stopDelta
23h 35mSOU-JFK
16/6Mon
multi-stopDelta
14h 50mJFK-SOU
£4,314
13/6Fri
multi-stopDelta
18h 30mSOU-JFK
16/6Mon
multi-stopDelta
14h 50mJFK-SOU
£4,328
13/6Fri
multi-stopDelta
11h 05mSOU-JFK
14/6Sat
multi-stopDelta
10h 15mJFK-SOU
£6,667

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

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

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