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Portsmouth

$507+ 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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
LGA — LHR
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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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 October 30, 2025.

This Mytrip deal was found by Cheapflights users on 10/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2710:10 amLGA - SOU
2 stops28h 30mMultiple Airlines
Thu 12/48:10 pmSOU - LGA
2 stops27h 53mMultiple Airlines
Deal found 10/30$538
This Delta deal was found by Cheapflights users on 10/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2412:15 pmLGA - SOU
2 stops14h 55mDelta
Tue 12/98:40 amSOU - LGA
2 stops15h 40mDelta
Deal found 10/29$770
This Mytrip deal was found by Cheapflights users on 10/29. 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.
Mon 11/245:35 pmLGA - SOU
2 stops16h 15mMultiple Airlines
Tue 12/912:25 pmSOU - LGA
3 stops36h 17mMultiple Airlines
Deal found 10/29$923
This Mytrip deal was found by Cheapflights users on 10/29. 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.
Sat 12/1311:30 amLGA - SOU
2 stops23h 05mMultiple Airlines
Sat 12/209:30 amSOU - LGA
2 stops18h 03mMultiple Airlines
Deal found 10/29$1,202
This KLM deal was found by Cheapflights users on 10/29. 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.
Sun 11/212:55 pmLGA - SOU
2 stops14h 15mKLM
Tue 11/48:40 amSOU - LGA
2 stops15h 48mKLM
Deal found 10/29$1,240
This Delta deal was found by Cheapflights users on 10/30. 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 11/212:55 pmLGA - SOU
2 stops14h 15mDelta
Tue 11/48:40 amSOU - LGA
2 stops15h 48mDelta
Deal found 10/30$1,440

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 October 30, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$538
(Mytrip)

One-way from

$507
(Delta)

Popular in

December

Cheapest in

January

Average price

$550
Provider with most accurate pricing for New York (NYC)-London (LON) flight deals.
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Provider most trusted by Cheapflights users for New York (NYC)-London (LON) flights.
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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. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 October 30, 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 11/27

10:10 am-7:40 pm

2 stops28h 30m

Southampton Eastleigh

Thu 12/4

8:10 pm-7:03 pm

2 stops27h 53m

$538

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Mon 11/24

12:15 pm-8:10 am

2 stops14h 55m

Southampton Eastleigh

Tue 12/9

8:40 am-11:40 pm

2 stops20h 00m

$770

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Mon 11/24

5:35 pm-2:50 pm

2 stops16h 15m

Southampton Eastleigh

Tue 12/9

12:25 pm-7:42 pm

3 stops36h 17m

$923

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Sat 12/13

11:30 am-3:35 pm

2 stops23h 05m

Southampton Eastleigh

Sat 12/20

9:30 am-10:33 pm

2 stops18h 03m

$1,202

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Fri 11/7

11:30 am-8:50 am

2 stops16h 20m

$507

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

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 $376). Flying from New York LaGuardia Airport to Portsmouth in June is currently the most expensive (average of $621). 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 October 30, 2025.

A simple way to save on the total cost of your ticket is to fly from New York LaGuardia Airport to Portsmouth in the morning. If you’re flexible enough to do this you can expect to save up to 12% on your trip compared to booking a flight at noon.

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 55m. 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 $376). Flying from New York LaGuardia Airport to Portsmouth in June is currently the most expensive (average of $621). 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air CanadaCheapest$357Average$646FlexibilityNo cancel feeOn-time67%
DeltaCheapest$406Average$530FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$514Average$736FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$530Average$863FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$547Average$630FlexibilityNo cancel feeOn-time69%

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