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Cheap flights from Portsmouth to North America from £240

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 25/4. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAX
13 Apr — 20 Apr1
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 14 March 2026.

Sun 19/409:20
SOU
-
LAX
1 stop17h 05m
Aer Lingus
Sun 26/420:10
LAX
-
SOU
1 stop15h 20m
Aer Lingus
Deal found 10/3£486
Wed 22/409:20
SOU
-
JFK
1 stop15h 00m
Aer Lingus
Wed 29/416:55
JFK
-
SOU
1 stop18h 55m
Aer Lingus
Deal found 9/3£510
Wed 22/409:20
SOU
-
EWR
1 stop11h 45m
Aer Lingus
Wed 29/417:35
EWR
-
SOU
1 stop20h 55m
Aer Lingus
Deal found 9/3£524
Fri 17/409:25
SOU
-
MIA
1 stop15h 35m
Multiple Airlines
Fri 24/421:45
MIA
-
SOU
2 stops29h 10m
Multiple Airlines
Deal found 11/3£531
Sat 25/409:20
SOU
-
JFK
1 stop18h 05m
Aer Lingus
Sat 2/516:55
JFK
-
SOU
1 stop10h 40m
Aer Lingus
Deal found 11/3£538
Fri 24/420:00
SOU
-
YYZ
1 stop23h 15m
Multiple Airlines
Fri 1/520:25
YYZ
-
SOU
1 stop16h 15m
Multiple Airlines
Deal found 10/3£541
Sat 25/409:20
SOU
-
YYZ
1 stop11h 30m
Aer Lingus
Sat 2/517:35
YYZ
-
SOU
1 stop18h 15m
Aer Lingus
Deal found 11/3£546
Mon 27/420:00
SOU
-
YYZ
2 stops33h 20m
Multiple Airlines
Mon 4/519:15
YYZ
-
SOU
1 stop12h 35m
Multiple Airlines
Deal found 13/3£559
Wed 8/417:20
SOU
-
YYZ
3 stops33h 45m
Multiple Airlines
Wed 15/420:45
YYZ
-
SOU
2 stops15h 05m
Multiple Airlines
Deal found 11/3£564
Sat 25/420:00
SOU
-
YYZ
2 stops45h 55m
Multiple Airlines
Sat 2/519:15
YYZ
-
SOU
1 stop17h 35m
Multiple Airlines
Deal found 11/3£569
Mon 13/417:20
SOU
-
JFK
2 stops31h 00m
Multiple Airlines
Tue 28/416:55
JFK
-
SOU
1 stop10h 10m
Multiple Airlines
Deal found 12/3£570
Mon 27/420:00
SOU
-
JFK
2 stops21h 40m
Multiple Airlines
Mon 4/521:20
JFK
-
SOU
1 stop17h 10m
Multiple Airlines
Deal found 13/3£575

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 14 March 2026.

Round-trip from

£486

One-way from

£240

Popular in

July

Cheapest in

September

Average price

£404
Aer Lingus
  • Aer Lingus
  • 19/4-26/4
  • 2 total stops
  • 32h 25m total
  • Portsmouth to North America
Search Deals
25/4
  • 25/4
  • 2 total stops
  • 45h 55m total
  • Portsmouth to North America
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£22 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 March 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 14 March 2026.
Use the filters below to find and compare flights from Portsmouth to North America that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Mon 4/5

17:20-12:24

1 stop24h 04m

New York John F Kennedy Intl

Mon 11/5

16:40-08:35

1 stop10h 55m

£611

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Mon 8/6

09:05-17:05

1 stop13h 00m

New York John F Kennedy Intl

Mon 22/6

21:10-08:35

1 stop30h 25m

£637

SouthamptonVancouver

SOU - YVR

SOUYVR

Southampton Eastleigh

Tue 28/4

09:05-16:50

2 stops15h 45m

Vancouver Intl

Tue 5/5

10:40-16:50

2 stops22h 10m

£638

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Mon 8/6

09:05-19:05

1 stop15h 00m

New York John F Kennedy Intl

Mon 22/6

10:30-08:35

2 stops17h 05m

£654

SouthamptonToronto

SOU - YYZ

SOUYYZ

Southampton Eastleigh

Tue 14/4

17:20-15:20

2 stops27h 00m

Toronto Pearson Intl

Tue 28/4

16:45-08:35

1 stop10h 50m

£679

SouthamptonNewark

SOU - EWR

SOUEWR

Southampton Eastleigh

Wed 15/4

09:20-16:05

1 stop11h 45m

Newark

Sun 19/4

17:35-08:40

1 stop10h 05m

£689

SouthamptonVancouver

SOU - YVR

SOUYVR

Southampton Eastleigh

Fri 24/4

17:20-15:55

1 stop30h 35m

Vancouver Intl

Fri 1/5

18:10-16:50

2 stops38h 40m

£695

SouthamptonVancouver

SOU - YVR

SOUYVR

Southampton Eastleigh

Sat 11/4

09:15-15:40

2 stops14h 25m

Vancouver Intl

Tue 14/4

17:50-16:50

1 stop15h 00m

£700

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Sat 25/4

20:00-16:40

2 stops50h 40m

Chicago O'Hare Intl

Sat 2/5

15:45-08:35

1 stop10h 50m

£701

SouthamptonNewark

SOU - EWR

SOUEWR

Southampton Eastleigh

Tue 5/5

20:00-16:05

1 stop25h 05m

Newark

Mon 11/5

21:25-17:40

2 stops15h 15m

£701

Flights are sorted by cheapest return flights first.

Deals found on 13/3

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
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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 £91). Flying from Portsmouth to North America in December is currently the most expensive (average of £285). 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 14 March 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 21 February 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 afternoons 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 14 March 2026.

The most flights from P0R to 0NA are scheduled on a Saturday (52 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (39 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 14 March 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
7.8
Good
1,471 reviews
Check prices

Comfort

7.6

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,471 reviews
KLM
7.8
Good
1,471 reviews
Check prices

Comfort

7.6

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Virgin Atlantic
7.5
Good
680 reviews
KLM
7.8
Good
1,471 reviews
Check prices

Comfort

7.6

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Aer Lingus
7.2
Good
1,476 reviews
KLM
7.8
Good
1,471 reviews
Check prices

Comfort

7.6

Food

7.3

Overall

7.8

Boarding

7.8

Entertainment

7.1

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

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 45m. Delta provides one of the quickest options available for as low as £689. The distance between Portsmouth and North America is about 3428 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 - Montreal Pierre Elliott Trudeau Intl.

  • 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 (90%), 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 £2,741 for a flight from Portsmouth to North America. The cheapest flight overall is £358 while the most popular route, (Southampton Eastleigh - New York John F Kennedy Intl) is currently priced at £575.

  • 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 £91). Flying from Portsmouth to North America in December is currently the most expensive (average of £285). 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

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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 14 March 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest£91Average£585FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
DeltaCheapest£149Average£596FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£194Average£540FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
TAP AIR PORTUGALCheapest£228Average£478FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IberiaCheapest£241Average£552FlexibilityNo cancel feeOn-time77%
Search Iberia flights
FinnairCheapest£276Average£518FlexibilityNo cancel feeOn-time76%
Search Finnair flights
SWISSCheapest£280Average£497FlexibilityNo cancel feeOn-time79%
Search SWISS flights
IcelandairCheapest£290Average£484FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Scandinavian AirlinesCheapest£303Average£511FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
PLAYCheapest£306Average£424FlexibilityNo cancel feeOn-timeN/A
Search PLAY 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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