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Portsmouth

$520+ Cheap flights from LaGuardia, NY (LGA) to Portsmouth, England

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
LGA — LHR
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from LaGuardia to Portsmouth

Keep the following information in mind while searching for LaGuardia to Portsmouth flight deals. Data was last updated September 16, 2025.

Round-trip from

$520
(Mytrip)

Popular in

December

Cheapest in

January

Average price

$516
From New York LaGuardia to Portsmouth
Search Deals
High demand for flights, 3% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
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Find flight deals from LaGuardia to Portsmouth

Cheapest flights from LaGuardia to Portsmouth
Explore the most affordable flight options available from LaGuardia to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Mytrip deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3010:35 amLGA - SOU
3 stops29h 05mMultiple Airlines
Thu 11/68:10 pmSOU - LGA
2 stops26h 48mMultiple Airlines
Deal found 9/15$520
This lastminute.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2012:59 pmLGA - SOU
2 stops14h 46mMultiple Airlines
Tue 11/45:30 pmSOU - LGA
2 stops35h 07mMultiple Airlines
Deal found 9/15$687
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/302:29 pmLGA - SOU
2 stops13h 36mDelta
Thu 11/68:50 amSOU - LGA
2 stops18h 52mDelta
Deal found 9/14$869
This Delta deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/283:00 pmLGA - SOU
2 stops12h 45mDelta
Fri 10/39:20 amSOU - LGA
2 stops15h 09mDelta
Deal found 9/15$954

Cheapflights Fare Finder

 
Customize your flight search to find flights from LaGuardia to Portsmouth 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 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from New York LaGuardia Airport to Portsmouth that are best for you.

Fly from

LaGuardia

Fly to

Portsmouth

Route

Depart

Return

Price

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Thu 10/30

10:35 am-7:40 pm

3 stops29h 05m

Southampton Eastleigh

Thu 11/6

8:10 pm-5:58 pm

2 stops26h 48m

$520

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Mon 10/20

12:59 pm-8:45 am

2 stops14h 46m

Southampton Eastleigh

Tue 11/4

5:30 pm-11:37 pm

2 stops35h 07m

$687

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Tue 1/6

1:00 pm-8:50 am

2 stops14h 50m

Southampton Eastleigh

Fri 1/9

9:00 am-7:49 pm

2 stops15h 49m

$867

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Thu 10/30

2:29 pm-8:05 am

2 stops13h 36m

Southampton Eastleigh

Thu 11/6

8:50 am-10:42 pm

2 stops18h 52m

$869

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Tue 1/6

1:00 pm-8:50 am

2 stops14h 50m

Southampton Eastleigh

Thu 1/8

9:00 am-7:35 pm

2 stops15h 35m

$902

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Sun 9/28

3:00 pm-8:45 am

2 stops12h 45m

Southampton Eastleigh

Fri 10/3

9:20 am-7:29 pm

2 stops15h 09m

$954

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Sun 12/21

12:00 pm-5:25 pm

2 stops24h 25m

$665

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Mon 12/22

5:00 pm-5:00 pm

2 stops19h 00m

$980

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Best time to book a flight from LaGuardia to Portsmouth

Have a flexible travel schedule? Discover the best time to fly to Portsmouth from LaGuardia with our price prediction graph.
Estimated round-trip 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 New York LaGuardia Airport to Portsmouth

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

Currently, November is the cheapest month in which you can book a flight from New York LaGuardia Airport to Portsmouth (average of $661). Flying from New York LaGuardia Airport to Portsmouth in June is currently the most expensive (average of $1,097). 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 LGA to P0R?

Find hourly flight availability from LaGuardia to Portsmouth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

When flying from New York LaGuardia Airport to Portsmouth, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

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

    Delta can get you from New York LaGuardia Airport to Portsmouth in just under 14h 50m. Your travel time can differ by up to . The distance between New York LaGuardia Airport and Portsmouth is about 3412 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from LaGuardia to Portsmouth 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 New York LaGuardia Airport to Portsmouth?

    Currently, November is the cheapest month in which you can book a flight from New York LaGuardia Airport to Portsmouth (average of $661). Flying from New York LaGuardia Airport to Portsmouth in June is currently the most expensive (average of $1,097). 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 LaGuardia to Portsmouth

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
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Stewart to Stansted flights
LaGuardia to Southampton flights
Stewart to Edinburgh flights
John F Kennedy Intl to Darlington flights
John F Kennedy Intl to Newquay flights
John F Kennedy Intl to East Midlands flights
Newark to East Midlands flights

Top 5 airlines flying from LaGuardia to Portsmouth

Discover the top 5 airlines that operate flights from LaGuardia to Portsmouth. 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 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$357Average$634FlexibilityNo cancel feeOn-time67%
DeltaCheapest$406Average$593FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$457Average$628FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$514Average$793FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$530Average$863FlexibilityNo cancel feeOn-time71%

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