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Cheap flights from Portsmouth to New York LaGuardia Airport from £474

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 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LGA
1 Aug — 8 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Portsmouth to LaGuardia

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to LaGuardia
Explore the most affordable flight options available from Portsmouth to LaGuardia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 2 July 2026.

Mon 24/809:15
SOU
-
LGA
2 stops18h 19m
Delta
Wed 9/917:05
LGA
-
SOU
2 stops18h 45m
Delta
Deal found 1/7£621
Mon 13/709:15
SOU
-
LGA
2 stops18h 06m
Delta
Mon 27/709:00
LGA
-
SOU
2 stops18h 45m
Delta
Deal found 28/6£628
Mon 2/1108:40
SOU
-
LGA
2 stops17h 49m
Delta
Sun 8/1111:50
LGA
-
SOU
2 stops15h 20m
Delta
Deal found 29/6£634
Mon 24/818:05
SOU
-
LGA
3 stops33h 30m
Multiple Airlines
Wed 9/908:45
LGA
-
SOU
2 stops21h 20m
Multiple Airlines
Deal found 2/7£646
Sat 29/809:15
SOU
-
LGA
2 stops15h 20m
Delta
Wed 9/908:59
LGA
-
SOU
2 stops18h 36m
Delta
Deal found 29/6£658
Sat 21/1109:25
SOU
-
LGA
2 stops15h 50m
Delta
Fri 27/1109:10
LGA
-
SOU
2 stops18h 45m
Delta
Deal found 29/6£679

Find flight deals from Portsmouth to LaGuardia

Keep the following information in mind while searching for Portsmouth to LaGuardia flight deals. Data was last updated 2 July 2026.

Round-trip from

£621

One-way from

£474

Popular in

June

Cheapest in

September

Average price

£525
Delta
  • Delta
  • 24/8-9/9
  • 4 total stops
  • 37h 04m total
  • Portsmouth to New York
Search Deals
British Airways
  • British Airways
  • 15/9
  • 2 total stops
  • 32h 48m total
  • Portsmouth to New York
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£64 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 LaGuardia 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 2 July 2026.
Use the filters below to find and compare flights from Portsmouth to New York LaGuardia Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Mon 24/8

09:15-22:34

2 stops18h 19m

New York LaGuardia

Wed 9/9

17:05-16:50

2 stops18h 45m

£621
Fastest return journey

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

Sat 29/8

09:15-19:35

2 stops15h 20m

New York LaGuardia

Wed 9/9

08:59-08:35

2 stops18h 36m

£658

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

£679
Cheapest one-way

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Tue 20/10

09:15-21:13

2 stops16h 58m

£483

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Mon 19/10

09:20-21:13

2 stops16h 53m

£529

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Fri 21/8

09:20-21:10

2 stops16h 50m

£569

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Sun 18/10

09:20-21:13

2 stops16h 53m

£570

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Thu 20/8

09:20-21:10

2 stops16h 50m

£675

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Sun 23/8

20:00-21:10

2 stops30h 10m

£892

Flights are sorted by cheapest return flights first.

Deals found on 29/6

Showing 1-10 of 15 resultsSorted by cheapest first
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Best time to book a flight from Portsmouth to LaGuardia

Have a flexible travel schedule? Discover the best time to fly to LaGuardia 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 New York LaGuardia Airport
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Portsmouth to LaGuardia. 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 New York LaGuardia Airport?

    For as low as £621, Delta can have you in New York LaGuardia Airport from Portsmouth in 18h 19m. The distance from Portsmouth to New York LaGuardia Airport is about 3412 mi.

  • Can I find deals for flights from Portsmouth to LaGuardia that include hotel bookings?

    Yes. In addition to deals on Portsmouth to LaGuardia flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Portsmouth to LaGuardia?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to LaGuardia.

  • Can I find deals for business class flights from Portsmouth to LaGuardia?

    Yes. Cheapflights offers flight deals from Portsmouth to LaGuardia 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

Travelling to a place near New York LaGuardia Airport?

Book flights to New York LaGuardia Airport if you plan to visit one of these locations
Queens
Ronkonkoma
Weehawken
Yonkers
Elizabeth
Mahwah
North Bergen
Bronx
North Wales
Rutherford
Garden City
Staten Island
Carlstadt
Norwalk
Fort Lee
Rahway
Carteret
Secaucus
West New York
Englewood

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Alternative routes for Portsmouth to LaGuardia

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Portsmouth to LaGuardia

Discover the top 5 airlines that operate flights from Portsmouth to LaGuardia. 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 2 July 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£278Average£499FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£326Average£423FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£328Average£344FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapest£340Average£603FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapest£351Average£529FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic 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 LaGuardia?

When you search for this flight from Portsmouth to LaGuardia, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Portsmouth to LaGuardia?

Cheapflights helps you find that perfect flight to LaGuardia 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 LaGuardia with no change fees?

Certainly. Search results for flights to LaGuardia from Portsmouth shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, Cheapflights offers price alerts on Portsmouth to LaGuardia 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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