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Cheap flights from Portsmouth to North America from £209

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 21/8. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LAX
8 Aug — 15 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to North America

Enter your travel dates to find the best prices.

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 9 July 2026.

Thu 27/809:20
SOU
-
JFK
3 stops35h 20m
Multiple Airlines
Wed 9/917:10
JFK
-
SOU
2 stops18h 40m
Multiple Airlines
Deal found 8/7£461
Tue 25/809:15
SOU
-
EWR
3 stops33h 00m
Multiple Airlines
Sun 30/817:45
EWR
-
SOU
3 stops33h 50m
Multiple Airlines
Deal found 5/7£514
Thu 27/809:20
SOU
-
JFK
1 stop18h 05m
Aer Lingus
Wed 9/923:55
JFK
-
SOU
1 stop14h 35m
Aer Lingus
Deal found 8/7£517
Thu 27/809:20
SOU
-
EWR
1 stop12h 00m
Multiple Airlines
Wed 9/919:40
EWR
-
SOU
1 stop18h 50m
Multiple Airlines
Deal found 8/7£539
Thu 20/820:00
SOU
-
YYZ
1 stop24h 50m
Multiple Airlines
Mon 24/823:55
YYZ
-
SOU
1 stop11h 55m
Multiple Airlines
Deal found 4/7£542
Tue 25/809:15
SOU
-
JFK
1 stop18h 10m
Aer Lingus
Sun 30/816:55
JFK
-
SOU
1 stop10h 45m
Aer Lingus
Deal found 5/7£545
Wed 19/809:20
SOU
-
JFK
1 stop18h 05m
Aer Lingus
Wed 26/816:55
JFK
-
SOU
1 stop10h 45m
Aer Lingus
Deal found 4/7£548
Wed 19/809:20
SOU
-
EWR
3 stops32h 55m
Multiple Airlines
Wed 26/817:45
EWR
-
SOU
2 stops20h 45m
Multiple Airlines
Deal found 4/7£560
Tue 25/809:15
SOU
-
JFK
2 stops18h 10m
Multiple Airlines
Sun 30/816:55
JFK
-
SOU
1 stop10h 45m
Multiple Airlines
Deal found 5/7£575
Tue 18/809:15
SOU
-
EWR
2 stops14h 01m
Multiple Airlines
Tue 25/820:25
EWR
-
SOU
3 stops31h 20m
Multiple Airlines
Deal found 5/7£580
Sun 11/1009:15
SOU
-
LAX
1 stop13h 30m
Delta
Tue 20/1014:00
LAX
-
SOU
2 stops18h 50m
Delta
Deal found 4/7£612
Mon 2/1108:40
SOU
-
LGA
2 stops17h 49m
Delta
Sun 8/1111:50
LGA
-
SOU
2 stops15h 20m
Delta
Deal found 9/7£634

Find 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 9 July 2026.

Round-trip from

£461

One-way from

£209

Popular in

June

Cheapest in

September

Average price

£529
27/8-9/9
  • 27/8-9/9
  • 5 total stops
  • 54h 00m total
  • Portsmouth to North America
Search Deals
21/8
  • 21/8
  • 2 total stops
  • 26h 15m total
  • Portsmouth to North America
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£66 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 9 July 2026.
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 - LAX

SOULAX

Southampton Eastleigh

Sun 11/10

09:15-20:40

2 stops19h 25m

Los Angeles

Tue 20/10

08:20-08:45

2 stops16h 25m

£616

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Mon 2/11

08:40-19:20

1 stop15h 40m

New York John F Kennedy Intl

Sun 8/11

10:30-08:10

2 stops16h 40m

£626

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Mon 2/11

08:40-21:29

2 stops17h 49m

New York LaGuardia

Sun 8/11

11:50-08:10

2 stops15h 20m

£634

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Thu 27/8

09:15-21:20

2 stops17h 05m

New York LaGuardia

Wed 9/9

17:05-16:50

2 stops18h 45m

£643

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Sat 21/11

09:25-19:20

1 stop14h 55m

New York John F Kennedy Intl

Fri 27/11

22:45-17:00

1 stop13h 15m

£655

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Sat 21/11

09:25-19:20

1 stop14h 55m

New York John F Kennedy Intl

Fri 27/11

14:55-08:55

2 stops13h 00m

£656

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Tue 18/8

09:15-22:35

2 stops18h 20m

New York LaGuardia

Tue 25/8

11:35-10:15

2 stops17h 40m

£672

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Sat 22/8

07:50-22:35

2 stops19h 45m

New York LaGuardia

Sat 29/8

11:35-16:50

2 stops24h 15m

£678

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Sat 21/11

09:25-20:15

2 stops15h 50m

New York LaGuardia

Fri 27/11

09:10-08:55

2 stops18h 45m

£680

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Fri 28/8

18:05-14:45

1 stop25h 40m

Miami

Thu 3/9

11:24-08:35

2 stops16h 11m

£685

Flights are sorted by cheapest return flights first.

Deals found on 8/7

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
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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 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 9 July 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 14% on airfare.

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 9 July 2026.

The most flights from P0R to 0NA are scheduled on a Wednesday (53 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (49 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 4 July 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 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 9 July 2026.
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
1,533 reviews
Check prices

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.2

Comfort

7.7

Overall

7.8

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
1,533 reviews
KLM
7.8
Good
1,533 reviews
Check prices

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.2

Comfort

7.7

Overall

7.8

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
1,652 reviews
KLM
7.8
Good
1,533 reviews
Check prices

Crew

8.4

Food

7.3

Boarding

7.8

Entertainment

7.2

Comfort

7.7

Overall

7.8

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

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.

  • How long is the flight from Portsmouth to North America?

    A quick flight from Portsmouth to North America can take about 14h 55m. Delta provides one of the quickest options available for as low as £655. The distance between Portsmouth and North America is about 3414 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 - Miami. You may also consider Southampton Eastleigh - New York John F Kennedy Intl or Southampton Eastleigh - Newark.

  • 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 Air Canada (89%), Austrian Airlines (89%) or United Airlines (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 £3,019 for a flight from Portsmouth to North America. The cheapest flight overall is £314 while the most popular route, (Southampton Eastleigh - Miami) is currently priced at £783.

  • 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 9 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest£117Average£558FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapest£148Average£613FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
IberiaCheapest£164Average£679FlexibilityNo cancel feeOn-time77%
Search Iberia flights
A.P.G.Cheapest£219Average£469FlexibilityNo cancel feeOn-timeN/A
Search A.P.G. flights
TAP AIR PORTUGALCheapest£226Average£489FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Norse Atlantic UKCheapest£256Average£473FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
IcelandairCheapest£289Average£461FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
SWISSCheapest£298Average£419FlexibilityNo cancel feeOn-time79%
Search SWISS flights
AeromexicoCheapest£298Average£726FlexibilityNo cancel feeOn-timeN/A
Search Aeromexico flights
Aer LingusCheapest£304Average£671FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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