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Cheap flights from Portsmouth to New York LaGuardia Airport from £354

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 20/6. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — LGA
10 May — 17 May1
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 10 April 2026.

Tue 12/518:10
SOU
-
LGA
3 stops30h 15m
Multiple Airlines
Tue 19/509:55
LGA
-
SOU
3 stops28h 35m
Multiple Airlines
Deal found 5/4£602
Mon 4/509:05
SOU
-
LGA
2 stops17h 15m
Delta
Mon 18/511:54
LGA
-
SOU
2 stops15h 41m
Delta
Deal found 4/4£632
Wed 20/509:20
SOU
-
LGA
2 stops15h 05m
Multiple Airlines
Wed 27/506:30
LGA
-
SOU
2 stops32h 00m
Multiple Airlines
Deal found 6/4£654
Wed 20/509:05
SOU
-
LGA
2 stops17h 16m
Delta
Wed 27/511:54
LGA
-
SOU
2 stops15h 41m
Delta
Deal found 5/4£658
Tue 12/509:05
SOU
-
LGA
2 stops17h 16m
Delta
Tue 19/511:54
LGA
-
SOU
2 stops15h 41m
Delta
Deal found 5/4£668
Fri 22/509:20
SOU
-
LGA
2 stops15h 05m
Multiple Airlines
Fri 29/509:55
LGA
-
SOU
3 stops25h 55m
Multiple Airlines
Deal found 7/4£678

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 10 April 2026.

Round-trip from

£602

One-way from

£354

Popular in

July

Cheapest in

September

Average price

£446
12/5-19/5
  • 12/5-19/5
  • 6 total stops
  • 58h 50m total
  • Portsmouth to New York
Search Deals
20/6
  • 20/6
  • 3 total stops
  • 40h 35m total
  • Portsmouth to New York
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£19 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 April 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 10 April 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 4/5

09:05-21:20

2 stops17h 15m

New York LaGuardia

Mon 18/5

11:54-08:35

2 stops15h 41m

£632

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Wed 20/5

09:20-19:25

2 stops15h 05m

New York LaGuardia

Wed 27/5

06:30-19:30

2 stops32h 00m

£654

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Wed 20/5

09:05-21:21

2 stops17h 16m

New York LaGuardia

Wed 27/5

11:54-08:35

2 stops15h 41m

£658

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Tue 12/5

09:05-21:21

2 stops17h 16m

New York LaGuardia

Tue 19/5

11:54-08:35

2 stops15h 41m

£668

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Tue 12/5

18:10-22:36

3 stops33h 26m

New York LaGuardia

Tue 19/5

20:25-19:30

2 stops18h 05m

£669

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Mon 4/5

09:20-21:30

3 stops17h 10m

New York LaGuardia

Mon 18/5

09:55-19:30

2 stops28h 35m

£698

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Sun 24/5

09:15-22:20

2 stops18h 05m

New York LaGuardia

Sun 31/5

11:54-08:35

2 stops15h 41m

£732

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Thu 7/5

09:05-21:21

2 stops17h 16m

New York LaGuardia

Thu 14/5

11:54-08:35

2 stops15h 41m

£734
Fastest return journey

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Thu 21/5

09:05-21:14

2 stops17h 09m

New York LaGuardia

Thu 28/5

11:54-08:35

2 stops15h 41m

£738
Cheapest one-way

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Sat 20/6

07:50-19:25

3 stops40h 35m

£354

Flights are sorted by cheapest return flights first.

Deals found on 8/4

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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

What is the cheapest month to book a flight from Portsmouth to New York LaGuardia Airport?

Currently, May is the cheapest month in which you can book a flight from Portsmouth to New York LaGuardia Airport (average of £300). Flying from Portsmouth to New York LaGuardia Airport in July is currently the most expensive (average of £362). 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.

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 £632, Delta can have you in New York LaGuardia Airport from Portsmouth in 17h 15m. 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.

  • What is the cheapest month to book a flight from Portsmouth to New York LaGuardia Airport?

    Currently, May is the cheapest month in which you can book a flight from Portsmouth to New York LaGuardia Airport (average of £300). Flying from Portsmouth to New York LaGuardia Airport in July is currently the most expensive (average of £362). 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

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
Secaucus
Yonkers
Bronx
Mahwah
North Bergen
Staten Island
North Wales
Rutherford
Carlstadt
Fort Lee
Norwalk
Carteret
Elizabeth
West New York
Englewood
Edgewater
Mount Laurel

Browse thousands of different options on Cheapflights for your next trip

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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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Heathrow to Stewart flights
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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 10 April 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£288Average£420FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£322Average£418FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£326Average£355FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Air CanadaCheapest£336Average£480FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapest£347Average£501FlexibilityNo 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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