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Cheap flights from Portsmouth to North America from £192

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAX
18 Jun — 25 Jun1
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 13 June 2025.

Round-trip from

£420

One-way from

£192

Popular in

August

Cheapest in

September

Average price

£389
KLM
  • KLM
  • 2/7-8/7
  • 2 total stops
  • 28h 45m total
  • Portsmouth to North America
Search Deals
10/10
  • 10/10
  • 2 total stops
  • 31h 15m total
  • Portsmouth to North America
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£32 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in June 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 13 June 2025.

Sun 22/618:25SOU - JFK
1 stop23h 55mKLM
Sun 6/700:50JFK - SOU
1 stop27h 00mKLM
Deal found 12/6£397
Wed 2/709:20SOU - JFK
2 stops18h 01mDelta
Tue 8/710:30JFK - SOU
2 stops17h 15mDelta
Deal found 11/6£428
Sun 22/618:25SOU - JFK
1 stop29h 40mVirgin Atlantic
Mon 7/717:30JFK - SOU
1 stop10h 20mVirgin Atlantic
Deal found 12/6£429
Mon 10/1117:20SOU - YYZ
1 stop27h 20mKLM
Mon 17/1114:30YYZ - SOU
2 stops12h 55mKLM
Deal found 10/6£484
Mon 10/1117:20SOU - YYZ
1 stop27h 20mVirgin Atlantic
Mon 17/1118:00YYZ - SOU
1 stop9h 25mVirgin Atlantic
Deal found 10/6£485
Mon 1/917:35SOU - YUL
1 stop28h 20mDelta
Mon 8/918:50YUL - SOU
1 stop17h 10mDelta
Deal found 12/6£486
Thu 14/818:25SOU - YYZ
1 stop30h 30mDelta
Sun 7/922:10YYZ - SOU
1 stop29h 40mDelta
Deal found 11/6£489
Sat 26/708:25SOU - YYZ
1 stop31h 35mMultiple Airlines
Sat 2/819:15YYZ - SOU
1 stop20h 45mMultiple Airlines
Deal found 11/6£510
Tue 19/818:25SOU - MIA
2 stops31h 57mDelta
Wed 3/912:30MIA - SOU
2 stops15h 15mDelta
Deal found 12/6£564
Thu 19/609:20SOU - FLL
2 stops18h 56mDelta
Mon 23/612:30FLL - SOU
2 stops15h 20mDelta
Deal found 12/6£564
Tue 8/718:25SOU - ORD
1 stop26h 15mKLM
Tue 15/716:20ORD - SOU
1 stop19h 30mKLM
Deal found 11/6£585
Sun 27/709:10SOU - JFK
1 stop15h 10mAer Lingus
Sun 3/816:55JFK - SOU
1 stop11h 15mAer Lingus
Deal found 12/6£612

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 13 June 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

Wed 2/7

09:20-22:50

1 stop18h 30m

New York John F Kennedy Intl

Tue 8/7

17:30-08:45

1 stop10h 15m

£420

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Wed 2/7

09:20-22:21

2 stops18h 01m

New York John F Kennedy Intl

Tue 8/7

10:30-08:45

2 stops17h 15m

£428

SouthamptonToronto

SOU - YYZ

SOUYYZ

Southampton Eastleigh

Mon 10/11

17:20-15:40

1 stop27h 20m

Toronto Pearson Intl

Mon 17/11

14:30-08:25

2 stops12h 55m

£484

SouthamptonToronto

SOU - YYZ

SOUYYZ

Southampton Eastleigh

Mon 10/11

17:20-15:40

1 stop27h 20m

Toronto Pearson Intl

Mon 17/11

18:00-08:25

1 stop9h 25m

£485

SouthamptonMontreal

SOU - YUL

SOUYUL

Southampton Eastleigh

Mon 1/9

17:35-16:55

1 stop28h 20m

Montreal Pierre Elliott Trudeau Intl

Mon 8/9

18:50-17:00

1 stop17h 10m

£486

SouthamptonToronto

SOU - YYZ

SOUYYZ

Southampton Eastleigh

Thu 14/8

18:25-19:55

1 stop30h 30m

Toronto Pearson Intl

Sun 7/9

22:10-08:50

1 stop29h 40m

£489

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Wed 16/7

09:20-22:50

1 stop18h 30m

New York John F Kennedy Intl

Wed 23/7

18:10-17:50

1 stop18h 40m

£503

SouthamptonToronto

SOU - YYZ

SOUYYZ

Southampton Eastleigh

Sat 26/7

08:25-11:00

1 stop31h 35m

Toronto Pearson Intl

Sat 2/8

19:15-21:00

1 stop20h 45m

£510

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Tue 19/8

18:25-21:22

2 stops31h 57m

Miami

Tue 2/9

12:30-08:45

2 stops15h 15m

£564

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Tue 8/7

18:25-14:40

1 stop26h 15m

Chicago O'Hare Intl

Tue 15/7

16:20-17:50

1 stop19h 30m

£585

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 45 results
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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 13 June 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 13 June 2025.

The most flights from P0R to 0NA are scheduled on a Monday (53 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (48 on average).

Rainfall in North America by month

Plan your trip to North America by taking into account the average rainfall totals by month.

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.

Temperature in North America by month

Plan your trip to North America by taking into account the average temperature totals by month.

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).

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 13 June 2025.
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

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
7,950 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

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
1,358 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

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
7,950 reviews
Check prices

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

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
1,118 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

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?

    £406 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 Virgin Atlantic, with prices starting from £1,081 and £1,155, respectively.

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

    The most popular route from Portsmouth to North America is Southampton Eastleigh - Montreal Pierre Elliott Trudeau Intl. You may also consider Southampton Eastleigh - Mexico City Benito Juarez or Southampton Eastleigh - Vancouver 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%), Iberia (91%) or KLM (90%) 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 £3,508 for a flight from Portsmouth to North America. The cheapest flight overall is £351 while the most popular route, (Southampton Eastleigh - Montreal Pierre Elliott Trudeau Intl) is currently priced at £486.

  • 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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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 13 June 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£7Average£537FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
DeltaCheapest£235Average£606FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
PLAYCheapest£259Average£415FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
SWISSCheapest£274Average£465FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Air CanadaCheapest£275Average£518FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
TAP AIR PORTUGALCheapest£279Average£463FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
IcelandairCheapest£289Average£564FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
United AirlinesCheapest£291Average£542FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Scandinavian AirlinesCheapest£305Average£540FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
American AirlinesCheapest£305Average£609FlexibilityNo cancel feeOn-time71%
Search American Airlines 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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