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Cheap flights from Portsmouth to North America from £241

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 25/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAX
21 Feb — 28 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to North America

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to North America
Explore the most affordable flight options available from Portsmouth to North America. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 January 2026.

Wed 4/312:25
SOU
-
JFK
1 stop12h 04m
British Airways
Wed 11/318:00
JFK
-
SOU
1 stop17h 35m
British Airways
Deal found 20/1£434
Wed 23/909:10
SOU
-
JFK
1 stop18h 05m
British Airways
Wed 7/1021:05
JFK
-
SOU
1 stop17h 25m
British Airways
Deal found 20/1£437
Wed 16/909:10
SOU
-
JFK
1 stop15h 10m
British Airways
Sat 19/923:45
JFK
-
SOU
1 stop14h 45m
British Airways
Deal found 21/1£439
Wed 16/909:10
SOU
-
EWR
1 stop11h 55m
British Airways
Sat 19/917:35
EWR
-
SOU
1 stop10h 00m
British Airways
Deal found 21/1£439
Wed 23/909:10
SOU
-
EWR
1 stop11h 55m
British Airways
Wed 7/1017:35
EWR
-
SOU
1 stop10h 05m
British Airways
Deal found 20/1£440
Wed 4/308:50
SOU
-
JFK
1 stop33h 25m
KLM
Wed 11/318:45
JFK
-
SOU
1 stop9h 35m
KLM
Deal found 21/1£441
Wed 4/308:50
SOU
-
JFK
2 stops18h 40m
Virgin Atlantic
Wed 11/317:40
JFK
-
SOU
1 stop10h 40m
Virgin Atlantic
Deal found 20/1£444
Wed 4/308:50
SOU
-
JFK
1 stop11h 55m
Delta
Wed 11/311:13
JFK
-
SOU
2 stops17h 07m
Delta
Deal found 21/1£444
Thu 29/120:10
SOU
-
YYZ
1 stop24h 45m
British Airways
Mon 2/217:25
YYZ
-
SOU
1 stop13h 30m
British Airways
Deal found 19/1£445
Tue 21/409:10
SOU
-
JFK
1 stop18h 05m
British Airways
Tue 12/523:45
JFK
-
SOU
1 stop14h 45m
British Airways
Deal found 20/1£451
Wed 29/409:10
SOU
-
EWR
1 stop11h 55m
British Airways
Wed 6/517:35
EWR
-
SOU
1 stop10h 05m
British Airways
Deal found 20/1£451
Wed 22/409:10
SOU
-
JFK
1 stop18h 05m
British Airways
Wed 13/521:05
JFK
-
SOU
1 stop17h 25m
British Airways
Deal found 21/1£453

Find flight deals from Portsmouth to North America

Keep the following information in mind while searching for Portsmouth to North America flight deals. Data was last updated 22 January 2026.

Round-trip from

£434

One-way from

£241

Popular in

July

Cheapest in

September

Average price

£374
British Airways
  • British Airways
  • 4/3-11/3
  • 2 total stops
  • 29h 39m total
  • Portsmouth to North America
Search Deals
25/3
  • 25/3
  • 1 total stop
  • 26h 10m total
  • Portsmouth to North America
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (£29 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Portsmouth to North America 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 858,174 searches. Data last updated 22 January 2026.
Use the filters below to find and compare flights from Portsmouth to North America that are best for you.

Fly from

Portsmouth

Fly to

North America

Route

Depart

Return

Price

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Wed 4/3

08:50-22:30

2 stops18h 40m

New York John F Kennedy Intl

Wed 11/3

17:40-08:20

1 stop10h 40m

£444

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Wed 4/3

08:50-15:45

1 stop11h 55m

New York John F Kennedy Intl

Wed 11/3

11:13-08:20

2 stops17h 07m

£444

SouthamptonNewark

SOU - EWR

SOUEWR

Southampton Eastleigh

Wed 29/4

09:10-16:05

1 stop11h 55m

Newark

Wed 6/5

17:35-08:40

1 stop10h 05m

£451

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Tue 21/4

09:10-22:15

1 stop18h 05m

New York John F Kennedy Intl

Tue 12/5

23:45-19:30

1 stop14h 45m

£451

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Wed 29/4

09:10-22:15

1 stop18h 05m

New York John F Kennedy Intl

Wed 6/5

23:45-19:30

1 stop14h 45m

£451

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Wed 22/4

09:10-22:15

1 stop18h 05m

New York John F Kennedy Intl

Wed 13/5

21:05-19:30

1 stop17h 25m

£453

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Fri 6/3

16:05-19:29

1 stop32h 24m

New York John F Kennedy Intl

Fri 13/3

09:05-15:15

2 stops26h 10m

£465

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Wed 4/2

12:25-18:30

1 stop14h 05m

Los Angeles

Wed 11/2

20:15-19:40

1 stop15h 25m

£468

SouthamptonToronto

SOU - YYZ

SOUYYZ

Southampton Eastleigh

Sat 7/3

09:30-15:55

1 stop11h 25m

Toronto Pearson Intl

Sun 17/5

17:35-08:40

1 stop10h 05m

£469

SouthamptonNewark

SOU - EWR

SOUEWR

Southampton Eastleigh

Wed 4/3

08:50-23:06

2 stops19h 16m

Newark

Wed 11/3

11:48-08:20

2 stops16h 32m

£470

Flights are sorted by cheapest return flights first.

Deals found on 20/1

Showing 1-10 of 60 results
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6

Best time to book a flight from Portsmouth to North America

Have a flexible travel schedule? Discover the best time to fly to North America from Portsmouth with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portsmouth to North America

What is the cheapest month to book a flight from Portsmouth to North America?

Currently, October is the cheapest month in which you can book a flight from Portsmouth to North America (average of £90). Flying from Portsmouth to North America in December is currently the most expensive (average of £299). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from P0R to NA?

Find hourly flight availability from Portsmouth to North America. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 22 January 2026.

One of the essential ways to save on airfare from Portsmouth to North America is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 8% on airfare.

What is the cheapest day to fly from Portsmouth to North America?

Use this chart to determine the cheapest time to fly return from Portsmouth to North America. Price data was last updated on 17 January 2026.

Travellers seeking maximum savings on their Portsmouth to North America flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Portsmouth to North America

Explore weekly flight availability from Portsmouth to North America. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 22 January 2026.

The most flights from P0R to 0NA are scheduled on a Monday (44 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (38 on average).

Reviews of airlines servicing North America

Get insights into the airlines that provide service to North America. 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 North America. Reviews last updated 22 January 2026.
Get a feel of what it's like to fly with KLM, Virgin Atlantic, andAer Lingus from Portsmouth to North America by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,442 reviews
Check prices

Boarding

7.8

Crew

8.4

Overall

7.7

Entertainment

7.1

Food

7.3

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,442 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Boarding

7.8

Crew

8.4

Overall

7.7

Entertainment

7.1

Food

7.3

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Virgin Atlantic
7.5
Good
678 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Boarding

7.8

Crew

8.4

Overall

7.7

Entertainment

7.1

Food

7.3

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Aer Lingus
7.2
Good
1,441 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Boarding

7.8

Crew

8.4

Overall

7.7

Entertainment

7.1

Food

7.3

Comfort

7.6

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to North America. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Portsmouth to North America?

    A quick flight from Portsmouth to North America can take about 11h 55m. Virgin Atlantic provides one of the quickest options available for as low as £444. The distance between Portsmouth and North America is about 3414 mi. Both multi-stop and direct flights can be found to your destination and back.

  • What are the most popular routes from Portsmouth to North America?

    The most popular route from Portsmouth to North America is Southampton Eastleigh - New York John F Kennedy Intl. You may also consider Southampton Eastleigh - Newark or Southampton Eastleigh - Orlando.

  • What are the most reliable airlines from Portsmouth to North America?

    No one likes to see their flight delayed. When booking a flight from Portsmouth to North America consider choosing SriLankan Airlines (94%), Air Canada (88%) or Austrian Airlines (88%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Portsmouth to North America?

    On average you can expect to pay £2,620 for a flight from Portsmouth to North America. The cheapest flight overall is £339 while the most popular route, (Southampton Eastleigh - New York John F Kennedy Intl) is currently priced at £428.

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

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

  • How can I find direct flights from Portsmouth to North America?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to North America.

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

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

  • What is the cheapest month to book a flight from Portsmouth to North America?

    Currently, October is the cheapest month in which you can book a flight from Portsmouth to North America (average of £90). Flying from Portsmouth to North America in December is currently the most expensive (average of £299). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Portsmouth to North America

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Portsmouth to North America

Discover the top 10 airlines that operate flights from Portsmouth to North America. 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 858,174 searches. Data last updated 22 January 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest£90Average£585FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
TAP AIR PORTUGALCheapest£123Average£457FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
DeltaCheapest£147Average£590FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£216Average£510FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
IberiaCheapest£238Average£561FlexibilityNo cancel feeOn-time77%
Search Iberia flights
PLAYCheapest£268Average£419FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
SWISSCheapest£277Average£459FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Scandinavian AirlinesCheapest£284Average£500FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
IcelandairCheapest£286Average£501FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Aer LingusCheapest£304Average£633FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

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 North America?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to North America from Portsmouth today with Cheapflights!

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

Cheapflights helps you find that perfect flight to North America from Portsmouth by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

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

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

Yes, Cheapflights offers price alerts on Portsmouth to North America flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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