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Cheap flights from Portsmouth to the United States from £380

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/5. 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.
LHR — LAX
21 Apr — 28 Apr1
1 adult
Sun 21/4
Sun 28/4

How far in advance should I book a flight from Portsmouth to USA?

To save up to 30% on this flight, we recommend booking at least 54 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Portsmouth to USA from £437 1-2 weeks out and tickets from £533 for flights departing within the next 72 hours.

What is the cheapest month to fly from Portsmouth to USA?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, January can be a great choice for travel to USA. Flights to USA from Portsmouth in January are about £420 on average during January, but can be found for as low as £270.

When is the cheapest time to fly from Portsmouth to USA (P0R - US)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portsmouth to USA as you normally would.

Cheap KLM flights from Portsmouth to USA

Explore cheap flight options specifically provided by KLM for the route between Portsmouth and USA. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 886,143 searches. Data last updated 16 April 2024.
Find some of the cheapest KLM flights travelling from Portsmouth to USA. Deals update often to give you more flight options matching your criteria
Thu 25/407:55SOU - BOS
1 stop13h 40mKLM
Mon 29/416:45BOS - SOU
1 stop9h 40mKLM
Deal found 15/4£445
Thu 25/407:55SOU - BOS
1 stop10h 45mKLM
Mon 29/416:45BOS - SOU
1 stop21h 25mKLM
Deal found 16/4£445
Thu 25/407:55SOU - BOS
2 stops16h 33mKLM
Mon 29/413:15BOS - SOU
2 stops13h 10mKLM
Deal found 16/4£449
Thu 25/407:55SOU - JFK
1 stop16h 15mKLM
Thu 2/521:15JFK - SOU
1 stop16h 55mKLM
Deal found 16/4£504
Mon 13/507:55SOU - BOS
1 stop13h 35mKLM
Mon 20/516:35BOS - SOU
1 stop21h 35mKLM
Deal found 15/4£535
Mon 16/907:55SOU - JFK
1 stop13h 50mKLM
Fri 27/919:40JFK - SOU
1 stop16h 10mKLM
Deal found 16/4£571
Mon 16/907:55SOU - JFK
1 stop13h 50mKLM
Fri 27/916:40JFK - SOU
1 stop19h 10mKLM
Deal found 15/4£572
Thu 25/407:55SOU - JFK
2 stops14h 11mKLM
Thu 2/521:15JFK - SOU
1 stop16h 55mKLM
Deal found 15/4£587
Wed 18/907:55SOU - LAX
2 stops19h 57mKLM
Mon 23/907:00LAX - SOU
2 stops16h 25mKLM
Deal found 15/4£587

Cheap Delta flights from Portsmouth to USA

Explore cheap flight options specifically provided by Delta for the route between Portsmouth and USA. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 886,143 searches. Data last updated 16 April 2024.
Browse through some of the cheapest Delta flights travelling from Portsmouth to USA. Check back soon if you're not seeing flights that suit your needs.
Thu 25/407:55SOU - BOS
2 stops17h 02mDelta
Mon 29/413:15BOS - SOU
2 stops13h 10mDelta
Deal found 15/4£458
Thu 25/407:55SOU - BOS
1 stop13h 40mDelta
Mon 29/413:15BOS - SOU
2 stops13h 10mDelta
Deal found 14/4£477
Thu 25/407:55SOU - BOS
1 stop10h 45mDelta
Mon 29/416:45BOS - SOU
1 stop21h 25mDelta
Deal found 15/4£477
Thu 25/407:55SOU - BOS
2 stops20h 32mDelta
Mon 29/413:15BOS - SOU
2 stops13h 10mDelta
Deal found 15/4£481
Mon 13/507:55SOU - BOS
1 stop10h 50mDelta
Mon 20/516:35BOS - SOU
1 stop9h 50mDelta
Deal found 15/4£538
Mon 13/507:55SOU - BOS
2 stops17h 17mDelta
Mon 20/516:35BOS - SOU
1 stop9h 50mDelta
Deal found 15/4£547
Thu 25/407:55SOU - LGA
2 stops17h 13mDelta
Thu 2/509:00LGA - SOU
2 stops17h 25mDelta
Deal found 15/4£589
Wed 18/907:55SOU - LAX
1 stop14h 55mDelta
Sun 22/900:59LAX - SOU
2 stops22h 26mDelta
Deal found 15/4£590
Thu 25/407:55SOU - JFK
2 stops15h 43mDelta
Thu 2/509:00JFK - SOU
2 stops17h 25mDelta
Deal found 16/4£595

Cheap Portsmouth to USA flights in April & May 2024

Find cheap flight options from Portsmouth to USA specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 886,143 searches. Prices were last updated on 16 April 2024.
Check out some of the best flight deals from Portsmouth to USA in 2024. Check back in a little while for more flight options.
Thu 25/407:55SOU - BOS
1 stop10h 45mKLM
Mon 29/413:15BOS - SOU
2 stops13h 10mKLM
Deal found 15/4£445
Thu 25/407:55SOU - BOS
1 stop10h 45mKLM
Mon 29/416:45BOS - SOU
1 stop21h 25mKLM
Deal found 16/4£445
Thu 25/407:55SOU - BOS
2 stops16h 33mKLM
Mon 29/413:15BOS - SOU
2 stops13h 10mKLM
Deal found 16/4£449
Thu 25/407:55SOU - JFK
1 stop16h 15mKLM
Thu 2/521:15JFK - SOU
1 stop16h 55mKLM
Deal found 15/4£449
Thu 25/407:55SOU - BOS
2 stops17h 02mDelta
Mon 29/413:15BOS - SOU
2 stops13h 10mDelta
Deal found 15/4£458
Thu 25/407:55SOU - BOS
1 stop13h 40mDelta
Mon 29/413:15BOS - SOU
2 stops13h 10mDelta
Deal found 14/4£477
Thu 25/407:55SOU - BOS
1 stop10h 45mDelta
Mon 29/416:45BOS - SOU
1 stop21h 25mDelta
Deal found 15/4£477
Thu 25/407:55SOU - BOS
2 stops20h 32mDelta
Mon 29/413:15BOS - SOU
2 stops13h 10mDelta
Deal found 15/4£481
Thu 25/407:55SOU - JFK
1 stop16h 15mKLM
Thu 2/521:15JFK - SOU
1 stop16h 55mKLM
Deal found 16/4£504

Portsmouth to USA 2024 flight deals

Discover exclusive flight deals for travel between Portsmouth and USA in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 886,143 searches. Data last updated 16 April 2024.
Check out some of the best flight deals from Portsmouth to USA in 2024. Check back in a little while for more flight options.
Thu 25/407:55SOU - BOS
1 stop10h 45mKLM
Mon 29/413:15BOS - SOU
2 stops13h 10mKLM
Deal found 15/4£445
Thu 25/407:55SOU - BOS
1 stop10h 45mKLM
Mon 29/416:45BOS - SOU
1 stop21h 25mKLM
Deal found 16/4£445
Thu 25/407:55SOU - BOS
2 stops16h 33mKLM
Mon 29/413:15BOS - SOU
2 stops13h 10mKLM
Deal found 16/4£449
Thu 25/407:55SOU - JFK
1 stop16h 15mKLM
Thu 2/521:15JFK - SOU
1 stop16h 55mKLM
Deal found 15/4£449
Thu 25/407:55SOU - BOS
2 stops17h 02mDelta
Mon 29/413:15BOS - SOU
2 stops13h 10mDelta
Deal found 15/4£458
Thu 25/407:55SOU - BOS
1 stop13h 40mDelta
Mon 29/413:15BOS - SOU
2 stops13h 10mDelta
Deal found 14/4£477
Thu 25/407:55SOU - BOS
1 stop10h 45mDelta
Mon 29/416:45BOS - SOU
1 stop21h 25mDelta
Deal found 15/4£477
Thu 25/407:55SOU - BOS
2 stops20h 32mDelta
Mon 29/413:15BOS - SOU
2 stops13h 10mDelta
Deal found 15/4£481
Thu 25/407:55SOU - JFK
1 stop16h 15mKLM
Thu 2/521:15JFK - SOU
1 stop16h 55mKLM
Deal found 16/4£504

Portsmouth to USA flights leaving soon

Find last-minute flight options from Portsmouth to USA for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 886,143 searches. Data last updated 16 April 2024.
Book one of these great deals on flights from Portsmouth to USA. Users should examine the flight details to ensure there are no surprises.
Thu 25/407:55SOU - BOS
1 stop13h 40mKLM
Mon 29/416:45BOS - SOU
1 stop9h 40mKLM
Deal found 15/4£445
Thu 25/407:55SOU - BOS
1 stop10h 45mKLM
Mon 29/416:45BOS - SOU
1 stop21h 25mKLM
Deal found 16/4£445
Thu 25/407:55SOU - BOS
2 stops16h 33mKLM
Mon 29/413:15BOS - SOU
2 stops13h 10mKLM
Deal found 16/4£449
Thu 25/407:55SOU - JFK
1 stop16h 15mKLM
Thu 2/521:15JFK - SOU
1 stop16h 55mKLM
Deal found 15/4£449
Thu 25/407:55SOU - BOS
2 stops17h 02mDelta
Mon 29/413:15BOS - SOU
2 stops13h 10mDelta
Deal found 15/4£458
Thu 25/407:55SOU - BOS
1 stop13h 40mDelta
Mon 29/413:15BOS - SOU
2 stops13h 10mDelta
Deal found 14/4£477
Thu 25/407:55SOU - BOS
1 stop10h 45mDelta
Mon 29/416:45BOS - SOU
1 stop21h 25mDelta
Deal found 15/4£477
Thu 25/407:55SOU - BOS
2 stops20h 32mDelta
Mon 29/413:15BOS - SOU
2 stops13h 10mDelta
Deal found 15/4£481
Thu 25/407:55SOU - JFK
1 stop16h 15mKLM
Thu 2/521:15JFK - SOU
1 stop16h 55mKLM
Deal found 16/4£504

One-way flights to USA from Portsmouth

Search for one-way flight options from Portsmouth to USA. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 886,143 searches. Data last updated 16 April 2024.
If you're seeking multiple options on one-way flights from Portsmouth to USA, be sure to check out these deals, which are updated often. Those seeking round-trip flights from Portsmouth to USA should utilise the search form at the top of the page.
Sun 19/509:40SOU - EWR
2 stops40h 20mMultiple Airlines
Deal found 15/4£380
Sun 19/520:20SOU - JFK
3 stops48h 35mMultiple Airlines
Deal found 15/4£384
Fri 21/621:35SOU - EWR
3 stops28h 25mMultiple Airlines
Deal found 16/4£391
Fri 21/608:10SOU - EWR
2 stops19h 20mMultiple Airlines
Deal found 16/4£392
Mon 30/909:10SOU - EWR
2 stops16h 50mMultiple Airlines
Deal found 15/4£399
Mon 13/520:00SOU - BOS
3 stops27h 00mMultiple Airlines
Deal found 16/4£408
Mon 13/520:00SOU - BOS
3 stops27h 00mMultiple Airlines
Deal found 15/4£409
Thu 25/420:00SOU - LGA
3 stops44h 04mMultiple Airlines
Deal found 14/4£414
Thu 25/417:10SOU - EWR
1 stop32h 50mMultiple Airlines
Deal found 14/4£421

Find flights from Portsmouth to USA within your budget

Customise your flight search to find flights from Portsmouth to USA that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 886,143 searches. Data last updated 16 April 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£535 - £982

Route

Depart

Return

Price

Southampton EastleighBoston Logan Intl

SOU - BOS

SOUBOS

Southampton Eastleigh

Mon 13/5

1 stop13h 35m

Boston Logan Intl

Mon 20/5

1 stop21h 35m

£535

Southampton EastleighBoston Logan Intl

SOU - BOS

SOUBOS

Southampton Eastleigh

Mon 13/5

1 stop10h 50m

Boston Logan Intl

Mon 20/5

1 stop9h 50m

£538

Southampton EastleighBoston Logan Intl

SOU - BOS

SOUBOS

Southampton Eastleigh

Mon 13/5

2 stops17h 17m

Boston Logan Intl

Mon 20/5

1 stop9h 50m

£547

Southampton EastleighNew York John F Kennedy Intl

SOU - JFK

SOUJFK

Southampton Eastleigh

Mon 16/9

1 stop13h 50m

New York John F Kennedy Intl

Fri 27/9

1 stop16h 10m

£571

Southampton EastleighLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Tue 30/4

2 stops16h 30m

Los Angeles

Tue 7/5

2 stops15h 40m

£620

Southampton EastleighLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Tue 30/4

2 stops16h 30m

Los Angeles

Tue 7/5

1 stop15h 15m

£621

Southampton EastleighNew York John F Kennedy Intl

SOU - JFK

SOUJFK

Southampton Eastleigh

Mon 16/9

1 stop13h 50m

New York John F Kennedy Intl

Fri 27/9

2 stops25h 20m

£633

Southampton EastleighNew York John F Kennedy Intl

SOU - JFK

SOUJFK

Southampton Eastleigh

Mon 12/8

1 stop28h 20m

New York John F Kennedy Intl

Wed 28/8

2 stops20h 15m

£808

Southampton EastleighSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Fri 16/8

1 stop26h 25m

San Francisco

Sun 25/8

1 stop19h 00m

£982

Flights are sorted by cheapest first

Deals found on 15/4

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing USA

Get insights into the airlines that provide service to USA. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to USA. Reviews last updated 16 April 2024.
Read through reviews of airlines operating flights from Portsmouth to USA, such as KLM, Delta and British Airways. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very Good
11,123 reviews

Food

7.5

Crew

8.6

Comfort

7.9

Overall

8.1

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!

8.1
Very Good
11,123 reviews
8.1
Very Good
11,123 reviews

Food

7.5

Crew

8.6

Comfort

7.9

Overall

8.1

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!

7.9
Good
1,647 reviews
8.1
Very Good
11,123 reviews

Food

7.5

Crew

8.6

Comfort

7.9

Overall

8.1

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!

7.7
Good
750 reviews
8.1
Very Good
11,123 reviews

Food

7.5

Crew

8.6

Comfort

7.9

Overall

8.1

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!

7.2
Good
1,357 reviews
8.1
Very Good
11,123 reviews

Food

7.5

Crew

8.6

Comfort

7.9

Overall

8.1

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!

6.9
Okay
6,927 reviews
8.1
Very Good
11,123 reviews

Food

7.5

Crew

8.6

Comfort

7.9

Overall

8.1

Boarding

8.2

Entertainment

8.0

Reviews

1 / 10

I love the seamless way that delta ensures that my luggage is on board the plane, I get a notification that it's on board. I love boarding process, orderly and on time. Lots of room in Comfort plus and getting upgraded to first class was everything!

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to USA. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find flights from Portsmouth to USA for under £600 on Cheapflights?

    Yes, there are multiple flights from Portsmouth to USA for under £600. The cheapest flight booked recently is on KLM for just £535, but on average you can expect to pay £595.

  • Are there last-minute flights available from Portsmouth to USA for under £500?

    There are currently 20+ open flights from Portsmouth to USA within the next 7 days for less than £500.

  • What are the most popular routes from Portsmouth to USA?

  • What are the most popular airlines that fly from Portsmouth to USA?

  • What are the most reliable airlines from Portsmouth to USA?

    The top 3 most reliable airlines when flying from Portsmouth to USA are Royal Jordanian (92%), United Airlines (88%) and Lufthansa (88%).

  • What are the cheapest flights from Portsmouth to USA?

    While on average a flight from Portsmouth to USA is generally £1,179, our data shows the cheapest flight currently is £323. When looking at the most popular route, (Southampton Eastleigh - New York John F Kennedy Intl), you can expect to pay £450 for that flight.

  • What does LHR to LAX mean?

    LHR stands for London Heathrow Airport, while LAX stands for Los Angeles Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. San Francisco Airport (SFO), Miami Airport (MIA), Boston Logan Intl Airport (BOS), New York John F Kennedy Intl Airport (JFK), Las Vegas Harry Reid Intl Airport (LAS) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Portsmouth to USA that include extra baggage allowance?

    The amount of baggage you can bring depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Portsmouth to USA with specific airlines?

    Yes, Cheapflights allows you to browse and filter flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Portsmouth to USA that include hotel bookings?

    Yes. In addition to deals on Portsmouth to USA flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Portsmouth to USA?

    After entering your origin and destination, apply the non-stop filter on the search result page to see available direct flights.

  • Can I find deals for business class flights from Portsmouth to USA?

    Yes. Cheapflights offers flight deals from Portsmouth to USA by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • Can I find deals for flights from Portsmouth to USA that allow pets onboard?

    Many airlines do offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Portsmouth to USA?

    Yes, you can often find last-minute deals on Portsmouth to USA flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Portsmouth to USA flight deals updated?

    The Portsmouth to USA flight deals you see on this page were last updated on 16/4.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from Portsmouth to USA

Discover the top 10 airlines that operate flights from Portsmouth to USA. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 886,143 searches. Data last updated 16 April 2024.
AirlineCheapestAverageFlexibilityOn-time
VuelingCheapest£196Average£221FlexibilityNo cancel feeOn-time88%
Search Vueling flights
PLAYCheapest£262Average£345FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
DeltaCheapest£271Average£581FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
TAP AIR PORTUGALCheapest£284Average£404FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Brussels AirlinesCheapest£308Average£514FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
IcelandairCheapest£322Average£487FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Norse Atlantic AirwaysCheapest£323Average£471FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic Airways flights
Air CanadaCheapest£344Average£545FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Alaska AirlinesCheapest£349Average£557FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
American AirlinesCheapest£353Average£603FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Search flights from Portsmouth to USA by cabin class

Find flights from Portsmouth to USA, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Hourly flight availability from Portsmouth to USA

Find hourly flight availability from Portsmouth to USA. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 16 April 2024.
1%of flight departuresEarly morningMidnight to 6 am
44%of flight departuresMorning6 am to noon
50%of flight departuresAfternoonNoon to 6 pm
5%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Midday
6 PM

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Portsmouth to USA?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Portsmouth to USA. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Portsmouth to USA?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to USA from Portsmouth.

Can Cheapflights find flights from Portsmouth to USA with no change fees?

Yes! Cheapflights helps users easily find flights from Portsmouth to USA with no change fees.

Can Cheapflights notify me if prices for flights from Portsmouth to USA become cheaper?

Not ready to book yet? You can track prices for flights from Portsmouth to USA on Cheapflights with our Price Alert feature and get notified when better prices are available.

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