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Portsmouth

$457+ Cheap flights from LaGuardia, NY (LGA) to Portsmouth, England

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
LGA — LHR
Aug 5 — Aug 121
Tue 8/5
Tue 8/12
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 July 31, 2025.

Round-trip from

$618
(Mytrip)

One-way from

$457
(Delta)

Popular in

December

Cheapest in

January

Average price

$634
From New York LaGuardia to Portsmouth
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One-way flight from New York LaGuardia to Portsmouth
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High demand for flights, 4% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 31, 2025.

This Mytrip deal was found by Cheapflights users on 7/29. 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.
Sun 9/145:45 pmLGA - SOU
2 stops20h 45mMultiple Airlines
Mon 9/228:00 pmSOU - LGA
2 stops23h 47mMultiple Airlines
Deal found 7/29$618
This Delta deal was found by Cheapflights users on 7/30. 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 8/241:59 pmLGA - SOU
2 stops13h 46mDelta
Fri 2/278:40 amSOU - LGA
2 stops16h 43mDelta
Deal found 7/30$680
This KLM deal was found by Cheapflights users on 7/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/612:55 pmLGA - SOU
2 stops14h 10mKLM
Sun 11/96:05 pmSOU - LGA
2 stops28h 39mKLM
Deal found 7/29$781

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 July 31, 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

Sun 9/14

5:45 pm-7:30 pm

2 stops20h 45m

Southampton Eastleigh

Mon 9/22

8:00 pm-2:47 pm

2 stops23h 47m

$618

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Sun 8/24

1:59 pm-8:45 am

2 stops13h 46m

Southampton Eastleigh

Fri 2/27

8:40 am-8:23 pm

2 stops16h 43m

$680

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Thu 11/6

12:55 pm-8:05 am

2 stops14h 10m

Southampton Eastleigh

Sun 11/9

6:05 pm-5:44 pm

2 stops28h 39m

$781

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Tue 8/12

12:59 pm-8:45 am

2 stops14h 46m

$457

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Tue 9/2

4:00 pm-8:45 am

2 stops11h 45m

$529

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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 July 31, 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.

Reviews of airlines servicing Portsmouth

Get insights into the airlines that provide service to Portsmouth. 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 Portsmouth. Reviews last updated July 31, 2025.
Read reviews from past customers who have flown Delta and KLM from New York LaGuardia Airport to Portsmouth. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,981 reviews

Overall

8.0

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

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.

  • 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.
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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 July 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$357Average$639FlexibilityNo cancel feeOn-time67%
DeltaCheapest$414Average$593FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$457Average$628FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$528Average$781FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$530Average$775FlexibilityNo cancel feeOn-time71%

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