How long is the flight from Portsmouth to North America?

A quick flight from Portsmouth to North America can take about 13h 30m. Aer Lingus provides one of the quickest options available for as low as £608. The distance between Portsmouth and North America is about 5434 mi. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in North America ranges from 71.0 - 114.0 inches per month. July is typically the wettest month, when rainfall can reach 114.0 mm. February is typically the driest time to visit North America when rainfall is around 71.0 mm.

If weather is an important factor for your trip to North America, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 1.0 C).

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 - Seattle/Tacoma Intl.

What are the cheapest flights from Portsmouth to North America?

On average you can expect to pay £2,295 for a flight from Portsmouth to North America. The cheapest flight overall is £309 while the most popular route, (Southampton Eastleigh - New York John F Kennedy Intl) is currently priced at £498.

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 (92%), Malaysia Airlines (92%) or Fiji Airways (88%) as they are the most reliable in getting you off to your destination on time.

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.

£299+ Cheap Flights from Portsmouth to North America

Cheap flight deals from Portsmouth to North America

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 21 August 2026.

Tue 29/909:15 -

2 stops36h 45m

Tue 6/1017:10 -

2 stops21h 20m

Deal found 20/8£447

Fri 13/1109:20 -

3 stops35h 25m

Mon 16/1117:35 -

2 stops20h 55m

Deal found 17/8£498

Thu 1/1009:20 -

3 stops35h 20m

Thu 8/1017:10 -

2 stops21h 20m

Deal found 17/8£503

Sun 11/1009:20 -

1 stop18h 05m

Sun 25/1018:00 -

1 stop10h 40m

Deal found 20/8£506

Tue 27/1009:20 -

1 stop15h 05m

Wed 4/1122:00 -

1 stop13h 35m

Deal found 19/8£513

Wed 18/1109:20 -

1 stop11h 55m

Wed 9/1217:45 -

1 stop9h 55m

Deal found 19/8£514

Sat 3/1009:20 -

1 stop11h 45m

Sat 10/1017:35 -

1 stop10h 00m

Deal found 20/8£517

Tue 29/909:15 -

1 stop11h 50m

Tue 6/1017:35 -

1 stop9h 30m

Deal found 20/8£517

Sun 4/1009:20 -

1 stop11h 45m

Sun 11/1017:35 -

1 stop18h 15m

Deal found 20/8£518

Fri 2/1014:30 -

1 stop25h 30m

Fri 9/1023:55 -

1 stop11h 55m

Deal found 18/8£520

Wed 30/909:20 -

1 stop15h 00m

Wed 7/1016:55 -

1 stop21h 35m

Deal found 16/8£535

Fri 9/1009:20 -

2 stops32h 55m

Sun 25/1019:30 -

2 stops20h 00m

Deal found 16/8£536

Best flights from Portsmouth to North America
Discover carefully curated flight deals from Portsmouth to North America that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 August 2026.

Tue 15/909:15 -

1 stop17h 10m

Tue 22/920:10 -

1 stop15h 20m

Deal found 18/8£541

Fri 9/1009:20 -

2 stops32h 55m

Sun 25/1018:30 -

3 stops21h 00m

Deal found 16/8£551

Wed 30/909:15 -

1 stop13h 30m

Wed 7/1006:00 -

2 stops18h 35m

Deal found 16/8£608

Wed 30/909:15 -

2 stops18h 37m

Wed 7/1013:15 -

2 stops14h 20m

Deal found 16/8£619

Wed 14/1009:15 -

1 stop13h 30m

Mon 19/1006:00 -

2 stops18h 35m

Deal found 20/8£633

Mon 15/209:20 -

1 stop17h 10m

Mon 8/320:15 -

1 stop15h 15m

Deal found 17/8£716

Thu 1/1009:05 -

2 stops21h 34m

Thu 8/1012:00 -

2 stops20h 50m

Deal found 17/8£611

Fri 2/1020:00 -

2 stops31h 59m

Fri 9/1016:55 -

2 stops21h 35m

Deal found 18/8£645

Tue 29/909:05 -

1 stop34h 42m

Tue 6/1009:36 -

2 stops15h 09m

Deal found 15/8£652

Sat 12/909:20 -

1 stop15h 55m

Sat 19/915:45 -

1 stop10h 50m

Deal found 15/8£660

Wed 18/1108:40 -

1 stop11h 20m

Wed 9/1212:59 -

2 stops14h 11m

Deal found 19/8£614

Wed 30/915:35 -

1 stop32h 45m

Wed 7/1022:00 -

1 stop29h 45m

Deal found 16/8£649

Thu 1/1009:05 -

1 stop14h 50m

Thu 8/1017:50 -

1 stop30h 55m

Deal found 17/8£715

Wed 18/1109:20 -

1 stop17h 10m

Wed 9/1220:50 -

2 stops27h 35m

Deal found 19/8£716

Wed 18/1108:40 -

2 stops17h 45m

Wed 9/1212:55 -

2 stops14h 15m

Deal found 19/8£617

Fri 2/1009:20 -

1 stop15h 50m

Fri 9/1019:10 -

1 stop13h 40m

Deal found 18/8£696

Thu 1/1017:20 -

1 stop26h 55m

Thu 8/1011:19 -

2 stops15h 16m

Deal found 17/8£700

Mon 16/1109:20 -

1 stop17h 10m

Mon 7/1220:50 -

2 stops27h 35m

Deal found 17/8£716

Mon 14/909:05 -

2 stops19h 27m

Sun 20/916:15 -

1 stop18h 35m

Deal found 15/8£718

Wed 30/909:15 -

2 stops28h 35m

Tue 6/1001:00 -

3 stops26h 35m

Deal found 16/8£673

Mon 28/917:20 -

1 stop24h 12m

Wed 7/1016:40 -

1 stop10h 55m

Deal found 15/8£644

Sat 3/1017:20 -

2 stops29h 17m

Sat 10/1018:30 -

2 stops17h 20m

Deal found 20/8£716

Mon 16/1117:05 -

1 stop27h 45m

Mon 7/1217:20 -

1 stop10h 20m

Deal found 17/8£724

Sat 5/909:15 -

1 stop11h 00m

Wed 9/916:50 -

1 stop18h 00m

Deal found 20/8£756

Mon 28/917:20 -

1 stop24h 12m

Thu 8/1016:40 -

1 stop10h 55m

Deal found 15/8£644

Sat 3/1020:00 -

1 stop24h 00m

Sat 10/1015:45 -

1 stop19h 05m

Deal found 19/8£782

Tue 17/1120:00 -

1 stop30h 30m

Tue 8/1220:50 -

2 stops27h 35m

Deal found 18/8£724

Mon 14/917:20 -

2 stops49h 40m

Mon 21/909:40 -

2 stops23h 10m

Deal found 17/8£731

Sat 3/1009:20 -

2 stops16h 10m

Sat 10/1015:48 -

2 stops34h 52m

Deal found 19/8£771

Wed 30/909:15 -

1 stop10h 20m

Wed 7/1016:40 -

1 stop10h 55m

Deal found 15/8£644

Find flight deals from Portsmouth to North America

Round-trip from	£447
One-way from	£299
Popular in	July
Cheapest in	February
Average price	£545

29/9-6/10
4 total stops
58h 05m total
Portsmouth to North America

Search Deals

13/12
2 total stops
32h 50m total
Portsmouth to North America

Search Deals

Highest demand for flights based on searches. 18% potential increase in price (£79 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Cheapflights Fare Finder

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

SouthamptonLos Angeles

SOU Southampton Eastleigh - LAX Los Angeles Los Angeles

SOULAX

Southampton Eastleigh

Tue 15/9

09:15-18:25

1 stop17h 10m

Los Angeles Los Angeles

Tue 22/9

20:10-19:30

1 stop15h 20m

£541

SouthamptonNewark

SOU Southampton Eastleigh - EWR Newark

SOUEWR

Southampton Eastleigh

Fri 9/10

09:20-13:15

2 stops32h 55m

Newark

Sun 25/10

18:30-19:30

3 stops21h 00m

£551

SouthamptonLos Angeles

SOU Southampton Eastleigh - LAX Los Angeles Los Angeles

SOULAX

Southampton Eastleigh

Wed 30/9

09:15-14:45

1 stop13h 30m

Los Angeles Los Angeles

Wed 7/10

06:00-08:35

2 stops18h 35m

£608

SouthamptonLos Angeles

SOU Southampton Eastleigh - LAX Los Angeles Los Angeles

SOULAX

Southampton Eastleigh

Thu 1/10

09:05-22:39

2 stops21h 34m

Los Angeles Los Angeles

Thu 8/10

12:00-16:50

2 stops20h 50m

£611

SouthamptonNew York

SOU Southampton Eastleigh - JFK New York John F Kennedy Intl

SOUJFK

Southampton Eastleigh

Wed 18/11

08:40-15:00

1 stop11h 20m

New York John F Kennedy Intl

Wed 9/12

12:59-08:10

2 stops14h 11m

£614

SouthamptonNew York

SOU Southampton Eastleigh - LGA New York LaGuardia

SOULGA

Southampton Eastleigh

Wed 18/11

08:40-21:25

2 stops17h 45m

New York LaGuardia

Wed 9/12

12:55-08:10

2 stops14h 15m

£617

SouthamptonNew York

SOU Southampton Eastleigh - JFK New York John F Kennedy Intl

SOUJFK

Southampton Eastleigh

Wed 30/9

09:15-22:52

2 stops18h 37m

New York John F Kennedy Intl

Wed 7/10

13:15-08:35

2 stops14h 20m

£619

SouthamptonLos Angeles

SOU Southampton Eastleigh - LAX Los Angeles Los Angeles

SOULAX

Southampton Eastleigh

Wed 14/10

09:15-14:45

1 stop13h 30m

Los Angeles Los Angeles

Mon 19/10

06:00-08:35

2 stops18h 35m

£633

SouthamptonNew York

SOU Southampton Eastleigh - JFK New York John F Kennedy Intl

SOUJFK

Southampton Eastleigh

Mon 28/9

17:20-12:32

1 stop24h 12m

New York John F Kennedy Intl

Wed 7/10

16:40-08:35

1 stop10h 55m

£644

SouthamptonNew York

SOU Southampton Eastleigh - JFK New York John F Kennedy Intl

SOUJFK

Southampton Eastleigh

Mon 28/9

17:20-12:32

1 stop24h 12m

New York John F Kennedy Intl

Thu 8/10

16:40-08:35

1 stop10h 55m

£644

Flights are sorted by cheapest return flights first.

Deals found on 17/8

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

SOU-JFK

SOU-MIA

SOU-LAX

SOU-YYZ

SOU-SFO

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

P0R-0NA

SOU-JFK

SOU-MIA

SOU-LAX

SOU-YYZ

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

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 evening tend to be the most expensive. A flight in the morning could potentially save you up to 16% on airfare.

Weekly flight availability from Portsmouth to North America

The most flights from P0R to 0NA are scheduled on a Monday (57 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (57 on average).

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

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. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing North America

Get a feel of what it's like to fly with KLM and Aer 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

1,560 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Bobby,Sept 2025

EDI - ATL

Food was above average but could be better, The flight was operated by Delta and was excellent

KLM

7.8

Good

1,560 reviews

KLM

7.8

Good

1,560 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Bobby,Sept 2025

EDI - ATL

Food was above average but could be better, The flight was operated by Delta and was excellent

Aer Lingus

7.3

Good

1,711 reviews

KLM

7.8

Good

1,560 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Bobby,Sept 2025

EDI - ATL

Food was above average but could be better, The flight was operated by Delta and was excellent

Related info for your journey

How long is the flight from Portsmouth to North America?
A quick flight from Portsmouth to North America can take about 13h 30m. Aer Lingus provides one of the quickest options available for as low as £608. The distance between Portsmouth and North America is about 5434 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 - Seattle/Tacoma 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 (92%), Malaysia Airlines (92%) or Fiji Airways (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 £2,295 for a flight from Portsmouth to North America. The cheapest flight overall is £309 while the most popular route, (Southampton Eastleigh - New York John F Kennedy Intl) is currently priced at £498.
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.

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Alternative routes for Portsmouth to North America

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Top 10 airlines flying from Portsmouth to North America

Airline	Cheapest	Average	Flexibility	On-time
Iberia	Cheapest£198	Average£572	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
Delta	Cheapest£219	Average£617	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
TAP AIR PORTUGAL	Cheapest£222	Average£483	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
JetBlue	Cheapest£255	Average£598	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
ITA Airways	Cheapest£260	Average£597	FlexibilityNo cancel fee	On-time81%	Search ITA Airways flights
Icelandair	Cheapest£268	Average£436	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
SWISS	Cheapest£301	Average£474	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Aer Lingus	Cheapest£311	Average£624	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Hahn Air	Cheapest£313	Average£674	FlexibilityNo cancel fee	On-timeN/A	Search Hahn Air flights
Air Transat	Cheapest£326	Average£557	FlexibilityNo cancel fee	On-time50%	Search Air Transat flights

Fly with Cheapflights

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!

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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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Cheap flights from Portsmouth to North America from £299

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 13/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Portsmouth to North America

Cheapest flights from Portsmouth to North AmericaExplore 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 21 August 2026.

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 21 August 2026.

Best flights from Portsmouth to North AmericaDiscover carefully curated flight deals from Portsmouth to North America that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 August 2026.

Discover carefully curated flight deals from Portsmouth to North America that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 August 2026.

Last-minute flights from Portsmouth to North AmericaDiscover last-minute flight deals from Portsmouth to North America. Data last updated 21 August 2026 and is based on user searches.

Discover last-minute flight deals from Portsmouth to North America. Data last updated 21 August 2026 and is based on user searches.

One-way flights from Portsmouth to North AmericaSearch for one-way flight options from Portsmouth to North America. Find affordable one-way fares based on user searches. Data last updated 21 August 2026.

Search for one-way flight options from Portsmouth to North America. Find affordable one-way fares based on user searches. Data last updated 21 August 2026.

Find flight deals from Portsmouth to North America

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portsmouth to North America that are best for you.

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.

Cheapflights Insights

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 21 August 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 evening tend to be the most expensive. A flight in the morning could potentially save you up to 16% on airfare.

Weekly flight availability from Portsmouth to North America

The most flights from P0R to 0NA are scheduled on a Monday (57 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (57 on average).

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 15 August 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. Tuesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing North America

Get a feel of what it's like to fly with KLM and Aer 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.

Related info for your journey

How long is the flight from Portsmouth to North America?

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

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

What are the cheapest flights from Portsmouth to North America?

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portsmouth to North America

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to North America by adding a car hire and/or hotel booking to your travel itinerary.

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Book a non-stop flight to one of these other cities located in .

Search flights from Portsmouth to North America by cabin class

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Portsmouth and North America flights

Browse other Portsmouth and North America flight options. Last updated on 21 August 2026.

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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 21 August 2026.

Best flights from Portsmouth to North America
Discover carefully curated flight deals from Portsmouth to North America that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 August 2026.

Last-minute flights from Portsmouth to North America
Discover last-minute flight deals from Portsmouth to North America. Data last updated 21 August 2026 and is based on user searches.

One-way flights from Portsmouth to North America
Search for one-way flight options from Portsmouth to North America. Find affordable one-way fares based on user searches. Data last updated 21 August 2026.