£293 Find Cheap Flights from Portsmouth to the United States – Compare and Save

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Cheap Flights from Portsmouth to the United States

Cheapest return flight prices found by our users on KAYAK in the last 5 days
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New York
New York
12h 04m2 stops
from £444per person
Newark
Newark
11h 45m2 stops
from £452per person
Los Angeles
Los Angeles
14h 15m2 stops
from £467per person
San Francisco
San Francisco
14h 15m2 stops
from £479per person
Orlando
Orlando
13h 50m2 stops
from £496per person
Washington, D.C.
Washington, D.C.
11h 25m2 stops
from £508per person
Seattle
Seattle
15h 20m2 stops
from £521per person
Las Vegas
Las Vegas
12h 50m3 stops
from £533per person
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Useful Info

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

Low season

January
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly (13% 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.

Reviews of the top airline flying 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.
7.3
Aer LingusOverall score based on 1755 reviews
7.2Comfort
6.7Food
8.1Crew
7.5Boarding
7.0Entertainment
Airline reviews

It was a short flight, so not bad. No entertainment provided, nor a complimentary tea service.

6.0 GoodAnonymous, Aug 2026
Read more Aer Lingus reviews

It was a short flight, so not bad. No entertainment provided, nor a complimentary tea service.

Overall good. however, we were rerouted and my luggage was lost.

Ryanair delayed my flight by 7.30 hours gave us a embarrassing 4 euro voucher Got to Leeds/Bradford airport got to the car hire which I also booked through your site and they had given my car away then charged me a additional 192 pounds more for a car I didn’t even want complete scam

Aer Lingus App never showed the gate and the board did not update until very close to the time the gate was due to close. Both planes departed late but no announcement was made which would have saved a run for the gate.

delayed flight stayed whole night at washington Dallas airport at seats , uncomfortable . i am senior citizen , very tired , worst travel.

Like getting a bus. No great luxury but will get you there

I was pleasantly surprised and enjoyed the services of the airline since flying is not my favorite thing. My goal was to be with my brother's family in Manchester after his death. All staff was helpful, the food appreciated since I selected an overnight flight. Every aspect of the experience was comforting. I plan to return to Manchester in order to attend my brother's funeral in October and hope that I am able to find a reasonable priced flight. Thank you

Very good except for the boarding process which was more hectic than it should have been

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.

Flight was cancelled. There were no Aer Lingus reps to help. I had to rebook my flight and find a hotel. Still had nothing from the airline.

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