How long is the flight from Portsmouth to North America?

A quick flight from Portsmouth to North America can take about 11h 30m. Aer Lingus provides one of the quickest options available for as low as £423. The distance between Portsmouth and North America is about 3523 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 - Miami.

What are the cheapest flights from Portsmouth to North America?

On average you can expect to pay £2,278 for a flight from Portsmouth to North America. The cheapest flight overall is £319 while the most popular route, (Southampton Eastleigh - New York John F Kennedy Intl) is currently priced at £444.

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 (95%), Malaysia Airlines (92%) or Fiji Airways (89%) 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.

£276+ 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 4 September 2026.

Thu 15/1009:20 -

1 stop11h 30m

Thu 22/1017:35 -

1 stop10h 05m

Deal found 31/8£423

Sun 11/1009:20 -

1 stop18h 05m

Sun 25/1018:00 -

1 stop10h 50m

Deal found 3/9£444

Mon 28/909:20 -

1 stop18h 05m

Mon 5/1023:55 -

1 stop14h 35m

Deal found 31/8£446

Sat 31/1009:20 -

1 stop11h 30m

Sat 28/1117:20 -

1 stop13h 35m

Deal found 3/9£448

Thu 15/1009:20 -

1 stop18h 05m

Thu 22/1023:55 -

1 stop11h 55m

Deal found 31/8£454

Tue 29/909:15 -

1 stop11h 35m

Tue 20/1017:35 -

1 stop9h 30m

Deal found 1/9£454

Mon 5/1009:20 -

1 stop11h 45m

Tue 20/1017:35 -

1 stop9h 30m

Deal found 31/8£454

Sun 18/1020:00 -

1 stop24h 50m

Sun 25/1018:20 -

1 stop13h 35m

Deal found 3/9£458

Tue 13/1020:00 -

1 stop24h 50m

Tue 20/1017:35 -

1 stop9h 30m

Deal found 30/8£460

Mon 28/920:00 -

1 stop24h 50m

Mon 19/1017:35 -

1 stop10h 05m

Deal found 31/8£463

Thu 15/1009:20 -

1 stop11h 45m

Thu 22/1017:35 -

1 stop18h 15m

Deal found 31/8£471

Thu 15/1009:20 -

1 stop11h 30m

Thu 22/1013:15 -

2 stops14h 25m

Deal found 31/8£477

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 4 September 2026.

Thu 15/1009:20 -

1 stop11h 30m

Thu 22/1017:35 -

1 stop10h 05m

Deal found 31/8£423

Tue 13/1020:00 -

1 stop24h 50m

Tue 20/1013:15 -

2 stops13h 50m

Deal found 30/8£481

Mon 19/1020:40 -

2 stops53h 25m

Mon 26/1022:20 -

1 stop30h 30m

Deal found 3/9£520

Thu 1/1009:05 -

1 stop12h 31m

Mon 5/1020:25 -

1 stop15h 25m

Deal found 30/8£547

Thu 29/1017:35 -

1 stop26h 10m

Fri 25/1213:50 -

1 stop19h 10m

Deal found 3/9£558

Thu 29/1008:40 -

2 stops20h 02m

Thu 5/1106:05 -

2 stops21h 05m

Deal found 3/9£679

Mon 28/909:20 -

1 stop18h 05m

Mon 5/1023:55 -

1 stop14h 35m

Deal found 31/8£446

Wed 18/1109:20 -

1 stop11h 30m

Sun 22/1117:20 -

1 stop13h 35m

Deal found 3/9£481

Sat 7/1109:20 -

1 stop11h 50m

Mon 16/1117:40 -

1 stop10h 00m

Deal found 31/8£483

Wed 28/1017:35 -

1 stop26h 10m

Thu 24/1214:25 -

2 stops18h 35m

Deal found 3/9£558

Thu 1/1009:20 -

2 stops14h 30m

Mon 5/1023:00 -

2 stops15h 30m

Deal found 30/8£560

Tue 27/1009:20 -

1 stop14h 45m

Sat 31/1018:15 -

1 stop10h 30m

Deal found 1/9£522

Sat 7/1109:20 -

1 stop12h 09m

Mon 16/1117:00 -

1 stop10h 40m

Deal found 31/8£483

Wed 28/1017:35 -

1 stop26h 10m

Fri 25/1213:50 -

1 stop19h 10m

Deal found 3/9£558

Wed 20/109:20 -

1 stop11h 50m

Mon 25/117:40 -

1 stop10h 00m

Deal found 1/9£484

Thu 29/1017:35 -

1 stop27h 20m

Thu 5/1117:45 -

1 stop18h 20m

Deal found 30/8£656

Tue 27/1017:35 -

1 stop26h 10m

Fri 25/1213:50 -

1 stop19h 10m

Deal found 3/9£558

Tue 20/1009:15 -

1 stop15h 05m

Thu 10/1217:00 -

1 stop10h 50m

Deal found 3/9£484

Thu 17/909:05 -

2 stops19h 09m

Mon 21/918:26 -

2 stops17h 24m

Deal found 30/8£659

Sat 31/1009:25 -

2 stops31h 25m

Thu 24/1223:59 -

2 stops33h 01m

Deal found 3/9£562

Tue 26/109:20 -

1 stop15h 09m

Sat 30/121:05 -

1 stop17h 25m

Deal found 1/9£484

Wed 30/909:15 -

1 stop14h 15m

Wed 7/1009:10 -

2 stops18h 25m

Deal found 2/9£563

Mon 12/1017:20 -

1 stop30h 35m

Mon 19/1013:10 -

2 stops19h 40m

Deal found 31/8£696

Wed 3/309:20 -

1 stop15h 09m

Wed 24/318:00 -

1 stop10h 50m

Deal found 2/9£484

Tue 2/309:20 -

1 stop15h 09m

Tue 23/318:00 -

1 stop10h 40m

Deal found 1/9£484

Thu 1/1020:00 -

1 stop22h 45m

Thu 22/1015:05 -

1 stop17h 45m

Deal found 3/9£872

Wed 30/909:15 -

2 stops19h 01m

Tue 6/1016:02 -

2 stops19h 48m

Deal found 2/9£639

Mon 28/909:20 -

1 stop17h 05m

Mon 19/1020:10 -

1 stop15h 20m

Deal found 31/8£486

Mon 12/1009:20 -

3 stops22h 55m

Mon 19/1008:45 -

3 stops26h 45m

Deal found 1/9£884

Mon 28/909:05 -

2 stops19h 30m

Mon 5/1011:05 -

2 stops16h 30m

Deal found 31/8£639

Find flight deals from Portsmouth to North America

Round-trip from	£423
One-way from	£276
Popular in	July
Cheapest in	February
Average price	£386

Aer Lingus
15/10-22/10
2 total stops
21h 35m total
Portsmouth to North America

Search Deals

6/12-31/12
1 total stop
23h 35m total
Portsmouth to North America

Search Deals

Highest demand for flights based on searches. 18% potential increase in price (£80 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 September 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

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - IAD Washington, D.C. Dulles Intl

SOUIAD

Southampton Eastleigh

Sat 12/12

15:25-20:35

3 stops34h 10m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£414

SouthamptonToronto

SOU Southampton Eastleigh - YYZ Toronto Pearson Intl

SOUYYZ

Southampton Eastleigh

Thu 15/10

09:20-15:50

1 stop11h 30m

Toronto Pearson Intl

Thu 22/10

17:35-08:40

1 stop10h 05m

£423

SouthamptonNew York

SOU Southampton Eastleigh - JFK New York John F Kennedy Intl

SOUJFK

Southampton Eastleigh

Fri 2/10

20:00-15:55

2 stops24h 55m

New York John F Kennedy Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£426

SouthamptonLos Angeles

SOU Southampton Eastleigh - LAX Los Angeles Los Angeles

SOULAX

Southampton Eastleigh

Sun 25/10

09:20-19:40

1 stop17h 20m

Los Angeles Los Angeles

Wed 31/12

00:00-09:00

Nonstop0h 00m

£436

SouthamptonToronto

SOU Southampton Eastleigh - YYZ Toronto Pearson Intl

SOUYYZ

Southampton Eastleigh

Mon 14/9

20:00-11:55

1 stop20h 55m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£442

SouthamptonLos Angeles

SOU Southampton Eastleigh - LAX Los Angeles Los Angeles

SOULAX

Southampton Eastleigh

Tue 8/12

20:00-18:40

1 stop30h 40m

Los Angeles Los Angeles

Wed 31/12

00:00-09:00

Nonstop0h 00m

£443

SouthamptonToronto

SOU Southampton Eastleigh - YYZ Toronto Pearson Intl

SOUYYZ

Southampton Eastleigh

Wed 23/9

20:00-11:55

1 stop20h 55m

Toronto Pearson Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£443

SouthamptonWashington, D.C.

SOU Southampton Eastleigh - IAD Washington, D.C. Dulles Intl

SOUIAD

Southampton Eastleigh

Mon 23/11

08:40-15:55

1 stop12h 15m

Washington, D.C. Dulles Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£443

SouthamptonNewark

SOU Southampton Eastleigh - EWR Newark

SOUEWR

Southampton Eastleigh

Fri 2/10

20:00-21:00

2 stops30h 00m

Newark

Wed 31/12

00:00-06:00

Nonstop0h 00m

£444

SouthamptonLos Angeles

SOU Southampton Eastleigh - LAX Los Angeles Los Angeles

SOULAX

Southampton Eastleigh

Mon 28/12

09:20-18:40

1 stop17h 20m

Los Angeles Los Angeles

Wed 31/12

00:00-09:00

Nonstop0h 00m

£446

Flights are sorted by cheapest return flights first.

Deals found on 2/9

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-YYZ

SOU-BOS

SOU-LAX

SOU-IAD

SOU-JFK

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-YYZ

SOU-BOS

SOU-LAX

SOU-IAD

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 18% on airfare.

Weekly flight availability from Portsmouth to North America

The most flights from P0R to 0NA are scheduled on a Wednesday (57 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (39 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

1,571 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

KLM

7.8

Good

1,571 reviews

KLM

7.8

Good

1,571 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

Aer Lingus

7.3

Good

1,744 reviews

KLM

7.8

Good

1,571 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

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 11h 30m. Aer Lingus provides one of the quickest options available for as low as £423. The distance between Portsmouth and North America is about 3523 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 - Miami.
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 (95%), Malaysia Airlines (92%) or Fiji Airways (89%) 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 £2,278 for a flight from Portsmouth to North America. The cheapest flight overall is £319 while the most popular route, (Southampton Eastleigh - New York John F Kennedy Intl) is currently priced at £444.
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.

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

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	Cheapest£116	Average£567	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Iberia	Cheapest£199	Average£630	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
TAP AIR PORTUGAL	Cheapest£224	Average£481	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Delta	Cheapest£260	Average£621	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Icelandair	Cheapest£285	Average£445	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
SWISS	Cheapest£304	Average£492	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Aer Lingus	Cheapest£314	Average£640	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Hahn Air	Cheapest£315	Average£699	FlexibilityNo cancel fee	On-timeN/A	Search Hahn Air flights
Finnair	Cheapest£336	Average£617	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Scandinavian Airlines	Cheapest£343	Average£509	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines 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!

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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Cheap flights from Portsmouth to North America from £276

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/12. 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 4 September 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 4 September 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 4 September 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 4 September 2026.

Last-minute flights from Portsmouth to North AmericaDiscover last-minute flight deals from Portsmouth to North America. Data last updated 4 September 2026 and is based on user searches.

Discover last-minute flight deals from Portsmouth to North America. Data last updated 4 September 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 4 September 2026.

Search for one-way flight options from Portsmouth to North America. Find affordable one-way fares based on user searches. Data last updated 4 September 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 4 September 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 18% on airfare.

Weekly flight availability from Portsmouth to North America

The most flights from P0R to 0NA are scheduled on a Wednesday (57 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (39 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 29 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.

Direct flights to

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

Search flights from Portsmouth to North America by cabin class

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

Portsmouth and North America flights

Browse other Portsmouth and North America flight options. Last updated on 4 September 2026.

Popular flight searches

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Fly to North America countries

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Top 10 airlines flying from Portsmouth to North America

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How does Cheapflights help users find flights from Portsmouth to North America?

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

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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 4 September 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 4 September 2026.

Last-minute flights from Portsmouth to North America
Discover last-minute flight deals from Portsmouth to North America. Data last updated 4 September 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 4 September 2026.