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Cheap flights from Portsmouth to North America from £284

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 13/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAX
9 Jul — 16 Jul1
1 adult

Cheap 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 4 July 2025.

Round-trip from

£438

One-way from

£284

Popular in

August

Cheapest in

September

Average price

£478
KLM
  • KLM
  • 11/8-25/8
  • 2 total stops
  • 44h 30m total
  • Portsmouth to North America
Search Deals
13/8
  • 13/8
  • 2 total stops
  • 29h 01m total
  • Portsmouth to North America
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£30 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 July 2025
Search Deals

Find flight deals from Portsmouth to North America

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 July 2025.

Mon 11/818:25SOU - JFK
1 stop29h 40mKLM
Mon 25/821:10JFK - SOU
1 stop14h 50mKLM
Deal found 3/7£438
Mon 11/809:20SOU - LGA
2 stops16h 10mDelta
Mon 25/813:59LGA - SOU
2 stops13h 51mDelta
Deal found 3/7£440
Mon 11/809:20SOU - JFK
2 stops18h 05mDelta
Mon 25/817:30JFK - SOU
1 stop10h 20mDelta
Deal found 3/7£440
Mon 11/818:25SOU - JFK
1 stop29h 40mMultiple Airlines
Sun 24/800:50JFK - SOU
1 stop11h 10mMultiple Airlines
Deal found 3/7£455
Mon 3/1109:00SOU - BOS
1 stop15h 05mDelta
Tue 18/1119:05BOS - SOU
1 stop16h 45mDelta
Deal found 3/7£462
Sun 2/1117:20SOU - BOS
1 stop30h 45mKLM
Sun 9/1121:05BOS - SOU
1 stop30h 20mKLM
Deal found 2/7£465
Sat 4/1008:55SOU - YYZ
2 stops34h 15mMultiple Airlines
Thu 16/1023:55YYZ - SOU
1 stop14h 35mMultiple Airlines
Deal found 3/7£505
Sun 21/918:25SOU - LAX
1 stop25h 25mVirgin Atlantic
Sat 4/1013:50LAX - SOU
1 stop20h 00mVirgin Atlantic
Deal found 2/7£536
Sun 5/1018:25SOU - MIA
2 stops29h 14mDelta
Wed 8/1019:30MIA - SOU
2 stops32h 15mDelta
Deal found 2/7£541
Sat 4/1018:05SOU - YYZ
1 stop30h 50mKLM
Thu 16/1016:45YYZ - SOU
1 stop11h 00mKLM
Deal found 3/7£555
Wed 13/809:20SOU - MCO
2 stops18h 55mVirgin Atlantic
Wed 20/807:00MCO - SOU
2 stops20h 45mVirgin Atlantic
Deal found 3/7£560
Mon 14/718:25SOU - YYZ
2 stops28h 08mDelta
Tue 22/722:10YYZ - SOU
1 stop14h 40mDelta
Deal found 3/7£574

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 4 July 2025.
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

Mon 11/8

18:25-19:05

1 stop29h 40m

New York John F Kennedy Intl

Mon 25/8

21:10-17:00

1 stop14h 50m

£438

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Mon 11/8

09:20-20:30

2 stops16h 10m

New York LaGuardia

Mon 25/8

13:59-08:50

2 stops13h 51m

£440

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Mon 11/8

09:20-22:25

2 stops18h 05m

New York John F Kennedy Intl

Mon 25/8

17:30-08:50

1 stop10h 20m

£440

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Mon 11/8

18:25-19:05

1 stop29h 40m

New York John F Kennedy Intl

Sun 24/8

00:50-17:00

1 stop11h 10m

£455

SouthamptonBoston

SOU - BOS

SOUBOS

Southampton Eastleigh

Mon 3/11

09:00-19:05

1 stop15h 05m

Boston Logan Intl

Tue 18/11

19:05-16:50

1 stop16h 45m

£462

SouthamptonBoston

SOU - BOS

SOUBOS

Southampton Eastleigh

Sun 2/11

17:20-19:05

1 stop30h 45m

Boston Logan Intl

Sun 9/11

21:05-08:25

1 stop30h 20m

£465

SouthamptonToronto

SOU - YYZ

SOUYYZ

Southampton Eastleigh

Sat 4/10

08:55-14:10

2 stops34h 15m

Toronto Pearson Intl

Thu 16/10

23:55-19:30

1 stop14h 35m

£505

SouthamptonLos Angeles

SOU - LAX

SOULAX

Southampton Eastleigh

Sun 21/9

18:25-11:50

1 stop25h 25m

Los Angeles

Sat 4/10

13:50-17:50

1 stop20h 00m

£536

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Sun 5/10

18:25-18:39

2 stops29h 14m

Miami

Wed 8/10

19:30-08:45

2 stops32h 15m

£541

SouthamptonToronto

SOU - YYZ

SOUYYZ

Southampton Eastleigh

Sat 4/10

18:05-19:55

1 stop30h 50m

Toronto Pearson Intl

Thu 16/10

16:45-08:45

1 stop11h 00m

£555

Flights are sorted by cheapest return flights first.

Deals found on 1/7

Showing 1-10 of 51 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, January is the cheapest month in which you can book a flight from Portsmouth to North America (average of £575). Flying from Portsmouth to North America in July is currently the most expensive (average of £811). 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 4 July 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portsmouth to North America as you normally would.

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 4 July 2025.

The most flights from P0R to 0NA are scheduled on a Friday (54 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (45 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 4 July 2025.
Get a feel of what it's like to fly with Delta, KLM, andVirgin Atlantic 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.
Delta
8.0
Very Good
7,982 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very Good
7,982 reviews
Delta
8.0
Very Good
7,982 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,367 reviews
Delta
8.0
Very Good
7,982 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
652 reviews
Delta
8.0
Very Good
7,982 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Aer Lingus
7.1
Good
1,144 reviews
Delta
8.0
Very Good
7,982 reviews
Check prices

Overall

8.0

Food

7.3

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

  • What are the cheapest airlines to fly from Portsmouth to North America one-way?

    £414 is the cheapest one-way deal found within the past few days, from Aer Lingus. You may also be able to find cheap deals on Delta and KLM, with prices starting from £1,089 and £1,177, respectively.

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

    The most popular route from Portsmouth to North America is Southampton Eastleigh - Miami. You may also consider Southampton Eastleigh - San Francisco 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 (94%), KLM (88%) or Air France (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 £3,462 for a flight from Portsmouth to North America. The cheapest flight overall is £363 while the most popular route, (Southampton Eastleigh - Miami) is currently priced at £601.

  • 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, January is the cheapest month in which you can book a flight from Portsmouth to North America (average of £575). Flying from Portsmouth to North America in July is currently the most expensive (average of £811). 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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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 4 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£7Average£534FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
DeltaCheapest£234Average£598FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
PLAYCheapest£258Average£375FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
SWISSCheapest£273Average£439FlexibilityNo cancel feeOn-time79%
Search SWISS flights
TAP AIR PORTUGALCheapest£277Average£460FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IcelandairCheapest£287Average£524FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
United AirlinesCheapest£289Average£532FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Scandinavian AirlinesCheapest£303Average£533FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
American AirlinesCheapest£304Average£595FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Air CanadaCheapest£305Average£511FlexibilityNo cancel feeOn-time67%
Search Air Canada flights

Fly with Cheapflights

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

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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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