How long is the flight from Portsmouth to North America?

A quick flight from Portsmouth to North America can take about 11h 30m. British Airways provides one of the quickest options available for as low as £482. 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 - Los Angeles. You may also consider Southampton Eastleigh - Miami or Southampton Eastleigh - New York John F Kennedy Intl.

What are the cheapest flights from Portsmouth to North America?

On average you can expect to pay £2,444 for a flight from Portsmouth to North America. The cheapest flight overall is £332 while the most popular route, (Southampton Eastleigh - Los Angeles) is currently priced at £485.

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 (89%) or Fiji Airways (86%) 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.

£274+ 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 19 September 2026.

Thu 8/1009:20 -

1 stop18h 05m

Sat 24/1016:55 -

1 stop11h 50m

Deal found 18/9£445

Thu 15/1009:20 -

1 stop11h 30m

Thu 5/1117:20 -

1 stop10h 30m

Deal found 17/9£455

Wed 14/1009:20 -

1 stop11h 30m

Wed 4/1117:20 -

1 stop10h 30m

Deal found 16/9£456

Fri 30/1009:20 -

1 stop11h 55m

Fri 6/1117:45 -

1 stop13h 10m

Deal found 15/9£456

Mon 16/1120:00 -

1 stop24h 50m

Sun 22/1117:20 -

1 stop10h 30m

Deal found 14/9£460

Tue 6/1020:00 -

1 stop24h 50m

Mon 12/1017:35 -

1 stop10h 05m

Deal found 18/9£464

Wed 18/1109:20 -

1 stop14h 15m

Tue 1/1217:20 -

1 stop18h 10m

Deal found 15/9£468

Thu 29/1020:00 -

1 stop25h 29m

Thu 5/1119:25 -

1 stop11h 30m

Deal found 14/9£476

Mon 2/1112:25 -

2 stops16h 21m

Mon 9/1117:20 -

1 stop10h 30m

Deal found 18/9£478

Thu 8/1009:05 -

1 stop13h 02m

Wed 21/1016:40 -

1 stop10h 55m

Deal found 18/9£478

Thu 8/1009:05 -

1 stop13h 02m

Sat 24/1010:20 -

2 stops18h 35m

Deal found 18/9£479

Mon 2/1108:40 -

1 stop11h 20m

Mon 9/1117:00 -

1 stop10h 10m

Deal found 18/9£479

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 19 September 2026.

Thu 8/1009:20 -

1 stop18h 05m

Sat 24/1016:55 -

1 stop11h 50m

Deal found 16/9£448

Tue 6/1020:00 -

1 stop24h 50m

Mon 12/1017:35 -

1 stop10h 05m

Deal found 18/9£464

Thu 8/1009:05 -

1 stop13h 02m

Sat 24/1010:20 -

2 stops18h 35m

Deal found 16/9£482

Sat 30/117:30 -

1 stop26h 25m

Sun 7/219:30 -

2 stops16h 30m

Deal found 14/9£589

Sun 1/1117:30 -

3 stops32h 30m

Sun 8/1116:00 -

3 stops32h 10m

Deal found 17/9£673

Sun 1/1117:30 -

1 stop29h 20m

Sun 8/1107:00 -

2 stops26h 05m

Deal found 17/9£719

Sat 31/1009:20 -

1 stop14h 15m

Wed 4/1117:20 -

1 stop18h 10m

Deal found 18/9£484

Wed 14/1009:20 -

1 stop18h 05m

Sun 18/1016:55 -

1 stop18h 55m

Deal found 19/9£485

Sat 31/1009:25 -

2 stops21h 01m

Wed 4/1106:00 -

2 stops18h 10m

Deal found 18/9£537

Wed 2/1209:20 -

1 stop17h 20m

Mon 7/1220:25 -

1 stop15h 05m

Deal found 16/9£487

Wed 18/1108:40 -

2 stops22h 51m

Mon 30/1113:50 -

1 stop19h 10m

Deal found 15/9£541

Sat 14/1109:20 -

1 stop11h 30m

Mon 23/1117:20 -

1 stop10h 30m

Deal found 14/9£487

Thu 1/1009:05 -

2 stops15h 53m

Mon 5/1012:00 -

2 stops15h 35m

Deal found 15/9£541

Tue 13/1017:20 -

1 stop30h 35m

Mon 19/1017:50 -

1 stop30h 55m

Deal found 14/9£665

Wed 18/1109:20 -

1 stop11h 30m

Sun 22/1117:20 -

1 stop10h 30m

Deal found 14/9£487

Fri 13/1108:40 -

2 stops19h 56m

Sun 15/1123:39 -

2 stops24h 31m

Deal found 14/9£543

Thu 8/1009:20 -

1 stop18h 05m

Sat 24/1016:55 -

1 stop11h 50m

Deal found 15/9£488

Wed 17/308:40 -

1 stop13h 10m

Tue 23/309:15 -

2 stops24h 45m

Deal found 15/9£715

Mon 12/1009:05 -

1 stop34h 45m

Sun 13/1207:20 -

2 stops16h 50m

Deal found 18/9£559

Fri 8/109:20 -

1 stop11h 50m

Tue 12/117:40 -

1 stop13h 10m

Deal found 13/9£488

Thu 1/1009:05 -

2 stops20h 05m

Tue 6/1007:20 -

2 stops25h 30m

Deal found 15/9£740

Mon 2/1117:45 -

1 stop26h 00m

Mon 11/105:30 -

2 stops27h 30m

Deal found 17/9£562

Tue 3/1109:20 -

1 stop12h 09m

Tue 10/1121:15 -

1 stop17h 15m

Deal found 14/9£488

Wed 4/1117:35 -

1 stop26h 10m

Wed 3/313:50 -

1 stop19h 10m

Deal found 15/9£564

Thu 29/1017:35 -

2 stops34h 15m

Thu 5/1108:40 -

2 stops42h 15m

Deal found 14/9£1,033

Thu 7/109:20 -

1 stop12h 09m

Mon 11/117:00 -

1 stop13h 50m

Deal found 14/9£488

Mon 2/1108:40 -

1 stop35h 05m

Sat 6/322:45 -

2 stops25h 25m

Deal found 15/9£564

Thu 10/1220:00 -

1 stop25h 15m

Sun 13/1217:45 -

1 stop10h 05m

Deal found 17/9£493

Tue 3/1117:35 -

1 stop26h 10m

Thu 4/313:50 -

1 stop19h 10m

Deal found 15/9£564

Mon 12/1020:00 -

1 stop30h 25m

Mon 19/1020:10 -

1 stop15h 20m

Deal found 18/9£495

Find flight deals from Portsmouth to North America

Round-trip from	£445
One-way from	£274
Popular in	July
Cheapest in	February
Average price	£455

Aer Lingus
8/10-24/10
2 total stops
29h 55m total
Portsmouth to North America

Search Deals

8/11-31/12
2 total stops
45h 25m total
Portsmouth to North America

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£75 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

SouthamptonVancouver

SOU Southampton Eastleigh - YVR Vancouver Intl

SOUYVR

Southampton Eastleigh

Wed 7/10

15:35-22:10

3 stops38h 35m

Vancouver Intl

Wed 31/12

00:00-09:00

Nonstop0h 00m

£381

SouthamptonMiami

SOU Southampton Eastleigh - MIA Miami

SOUMIA

Southampton Eastleigh

Tue 15/12

09:20-19:35

3 stops39h 15m

Miami

Wed 31/12

00:00-06:00

Nonstop0h 00m

£385

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

£444

SouthamptonCancún

SOU Southampton Eastleigh - CUN Cancun

SOUCUN

Southampton Eastleigh

Thu 10/12

13:55-19:20

3 stops34h 25m

Cancun

Wed 31/12

00:00-07:00

Nonstop0h 00m

£446

SouthamptonLos Angeles

SOU Southampton Eastleigh - LAX Los Angeles

SOULAX

Southampton Eastleigh

Thu 25/2

09:20-18:40

1 stop17h 20m

Los Angeles

Wed 31/12

00:00-09:00

Nonstop0h 00m

£446

SouthamptonNew York

SOU Southampton Eastleigh - JFK New York John F Kennedy Intl

SOUJFK

Southampton Eastleigh

Thu 8/10

09:20-22:25

1 stop18h 05m

New York John F Kennedy Intl

Sat 24/10

16:55-09:45

1 stop11h 50m

£448

SouthamptonLos Angeles

SOU Southampton Eastleigh - LAX Los Angeles

SOULAX

Southampton Eastleigh

Tue 23/2

20:00-18:40

1 stop30h 40m

Los Angeles

Wed 31/12

00:00-09:00

Nonstop0h 00m

£454

Fastest return journey

SouthamptonNewark

SOU Southampton Eastleigh - EWR Newark

SOUEWR

Southampton Eastleigh

Mon 7/12

09:20-16:15

1 stop11h 55m

Newark

Wed 31/12

00:00-06:00

Nonstop0h 00m

£455

SouthamptonNew York

SOU Southampton Eastleigh - JFK New York John F Kennedy Intl

SOUJFK

Southampton Eastleigh

Mon 7/12

09:20-19:29

1 stop15h 09m

New York John F Kennedy Intl

Wed 31/12

00:00-06:00

Nonstop0h 00m

£455

SouthamptonNewark

SOU Southampton Eastleigh - EWR Newark

SOUEWR

Southampton Eastleigh

Mon 23/11

09:20-16:15

1 stop11h 55m

Newark

Wed 31/12

00:00-06:00

Nonstop0h 00m

£455

Flights are sorted by cheapest return flights first.

Deals found on 14/9

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-YVR

SOU-IAD

SOU-LAX

SOU-MIA

SOU-CUN

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-YVR

SOU-IAD

SOU-LAX

SOU-MIA

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 13% on airfare.

Weekly flight availability from Portsmouth to North America

The most flights from P0R to 0NA are scheduled on a Monday (56 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (48 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 Tuesday mornings 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

1,577 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

1,577 reviews

KLM

7.8

Good

1,577 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

1,768 reviews

KLM

7.8

Good

1,577 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. British Airways provides one of the quickest options available for as low as £482. 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 - Los Angeles. You may also consider Southampton Eastleigh - Miami or Southampton Eastleigh - New York John F Kennedy 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 (95%), Malaysia Airlines (89%) or Fiji Airways (86%) 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 £2,444 for a flight from Portsmouth to North America. The cheapest flight overall is £332 while the most popular route, (Southampton Eastleigh - Los Angeles) is currently priced at £485.
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
Frontier	Cheapest£67	Average£199	FlexibilityNo cancel fee	On-time62%	Search Frontier flights
Air Canada	Cheapest£117	Average£607	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
TAP AIR PORTUGAL	Cheapest£226	Average£485	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
JetBlue	Cheapest£260	Average£611	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Delta	Cheapest£263	Average£623	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Icelandair	Cheapest£288	Average£457	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
SWISS	Cheapest£307	Average£506	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Hahn Air	Cheapest£319	Average£706	FlexibilityNo cancel fee	On-timeN/A	Search Hahn Air flights
Brussels Airlines	Cheapest£335	Average£616	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
Scandinavian Airlines	Cheapest£336	Average£529	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 £274

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/11. 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 19 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 19 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 19 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 19 September 2026.

Last-minute flights from Portsmouth to North AmericaDiscover last-minute flight deals from Portsmouth to North America. Data last updated 19 September 2026 and is based on user searches.

Discover last-minute flight deals from Portsmouth to North America. Data last updated 19 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 19 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 19 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 19 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 13% on airfare.

Weekly flight availability from Portsmouth to North America

The most flights from P0R to 0NA are scheduled on a Monday (56 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (48 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 12 September 2026.

Travellers seeking maximum savings on their Portsmouth to North America flight should consider departing on Tuesday mornings 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 19 September 2026.

Popular flight searches

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Top 10 airlines flying 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 19 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 19 September 2026.

Last-minute flights from Portsmouth to North America
Discover last-minute flight deals from Portsmouth to North America. Data last updated 19 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 19 September 2026.