$325+ 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 2/22. Fares are subject to change and may not be available on all flights or dates of travel.
LGA — LHR
Mar 7 — Mar 141
1 adult, Economy
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Find cheap flights from LaGuardia to Portsmouth with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from LaGuardia to Portsmouth
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Cheapest flights from LaGuardia to PortsmouthExplore 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 February 5, 2026.
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 February 5, 2026.
This Delta deal was found by Cheapflights users on 2/1. 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.
Wed 3/1812:00 pm
LGA
- SOU
2 stops16h 20m
Delta
Wed 3/258:50 am
SOU
- LGA
2 stops18h 47m
Delta
Deal found 2/1![Delta logo]()
$697
This Delta deal was found by Cheapflights users on 2/3. 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 4/51:59 pm
LGA
- SOU
2 stops13h 36m
Delta
Mon 4/135:20 pm
SOU
- LGA
2 stops28h 55m
Delta
Deal found 2/3![Delta logo]()
$710
This Delta deal was found by Cheapflights users on 2/3. 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 3/231:00 pm
LGA
- SOU
2 stops24h 00m
Delta
Mon 4/135:20 pm
SOU
- LGA
2 stops28h 03m
Delta
Deal found 2/3![Delta logo]()
$711
This Mytrip deal was found by Cheapflights users on 2/4. 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.
Fri 5/225:40 pm
LGA
- SOU
2 stops20h 50m
Multiple Airlines
Wed 5/278:00 pm
SOU
- LGA
2 stops30h 26m
Multiple Airlines
Deal found 2/4![Multiple Airlines logo]()
$712
This Delta deal was found by Cheapflights users on 2/1. 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 2/91:05 pm
LGA
- SOU
2 stops14h 45m
Delta
Mon 2/238:50 am
SOU
- LGA
2 stops17h 10m
Delta
Deal found 2/1![Delta logo]()
$732
This Delta deal was found by Cheapflights users on 2/2. 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.
Fri 2/204:00 pm
LGA
- SOU
2 stops20h 00m
Delta
Tue 3/108:50 am
SOU
- LGA
2 stops17h 09m
Delta
Deal found 2/2![Delta logo]()
$747
This Delta deal was found by Cheapflights users on 2/3. 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 4/51:59 pm
LGA
- SOU
2 stops13h 36m
Delta
Tue 4/149:05 am
SOU
- LGA
2 stops15h 55m
Delta
Deal found 2/3![Delta logo]()
$770
This Delta deal was found by Cheapflights users on 2/3. 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 3/298:00 am
LGA
- SOU
2 stops19h 35m
Delta
Tue 4/149:05 am
SOU
- LGA
2 stops15h 55m
Delta
Deal found 2/3![Delta logo]()
$771
Best flights from LaGuardia to PortsmouthDiscover carefully curated flight deals from LaGuardia to Portsmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 5, 2026.
Discover carefully curated flight deals from LaGuardia to Portsmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 5, 2026.
This Delta deal was found by Cheapflights users on 2/1. 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.
Wed 3/1812:00 pm
LGA
- SOU
2 stops16h 20m
Delta
Wed 3/258:50 am
SOU
- LGA
2 stops18h 47m
Delta
Deal found 2/1![Delta logo]()
$697
This Mytrip deal was found by Cheapflights users on 2/4. 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.
Fri 5/225:40 pm
LGA
- SOU
2 stops20h 50m
Multiple Airlines
Wed 5/278:00 pm
SOU
- LGA
2 stops30h 26m
Multiple Airlines
Deal found 2/4![Multiple Airlines logo]()
$712
This Delta deal was found by Cheapflights users on 2/3. 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 3/231:00 pm
LGA
- SOU
2 stops24h 00m
Delta
Mon 4/135:20 pm
SOU
- LGA
2 stops28h 03m
Delta
Deal found 2/3![Delta logo]()
$711
This Delta deal was found by Cheapflights users on 2/3. 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.
Wed 3/252:00 pm
LGA
- SOU
2 stops23h 25m
Delta
Mon 4/135:20 pm
SOU
- LGA
2 stops28h 03m
Delta
Deal found 2/3![Delta logo]()
$711
This Delta deal was found by Cheapflights users on 2/3. 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 3/303:00 pm
LGA
- SOU
2 stops20h 50m
Delta
Mon 4/135:20 pm
SOU
- LGA
2 stops28h 03m
Delta
Deal found 2/3![Delta logo]()
$711
This Delta deal was found by Cheapflights users on 2/3. 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 3/298:00 am
LGA
- SOU
2 stops19h 35m
Delta
Mon 4/135:20 pm
SOU
- LGA
2 stops28h 03m
Delta
Deal found 2/3![Delta logo]()
$711
This Delta deal was found by Cheapflights users on 2/2. 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.
Fri 2/204:00 pm
LGA
- SOU
2 stops20h 00m
Delta
Wed 3/118:50 am
SOU
- LGA
2 stops17h 09m
Delta
Deal found 2/2![Delta logo]()
$747
This Delta deal was found by Cheapflights users on 2/2. 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.
Fri 2/204:00 pm
LGA
- SOU
2 stops20h 00m
Delta
Tue 3/108:50 am
SOU
- LGA
2 stops17h 09m
Delta
Deal found 2/2![Delta logo]()
$747
This Delta deal was found by Cheapflights users on 2/2. 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.
Fri 2/204:00 pm
LGA
- SOU
2 stops20h 00m
Delta
Thu 3/58:50 am
SOU
- LGA
2 stops17h 10m
Delta
Deal found 2/2![Delta logo]()
$747
This Delta deal was found by Cheapflights users on 2/2. 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.
Fri 2/204:00 pm
LGA
- SOU
2 stops20h 00m
Delta
Fri 3/68:50 am
SOU
- LGA
2 stops17h 10m
Delta
Deal found 2/2![Delta logo]()
$747
This Delta deal was found by Cheapflights users on 2/3. 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 4/51:59 pm
LGA
- SOU
2 stops13h 36m
Delta
Tue 4/149:05 am
SOU
- LGA
2 stops15h 55m
Delta
Deal found 2/3![Delta logo]()
$770
Last-minute flights from LaGuardia to PortsmouthDiscover last-minute flight deals from LaGuardia to Portsmouth. Data last updated February 5, 2026 and is based on user searches.
Discover last-minute flight deals from LaGuardia to Portsmouth. Data last updated February 5, 2026 and is based on user searches.
This KLM deal was found by Cheapflights users on 2/1. 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 2/51:05 pm
LGA
- SOU
2 stops14h 20m
KLM
Sat 2/79:25 am
SOU
- LGA
2 stops16h 05m
KLM
Deal found 2/1![KLM logo]()
$1,166
This Delta deal was found by Cheapflights users on 2/1. 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 2/91:05 pm
LGA
- SOU
2 stops14h 45m
Delta
Mon 2/238:50 am
SOU
- LGA
2 stops17h 10m
Delta
Deal found 2/1![Delta logo]()
$732
This Delta deal was found by Cheapflights users on 2/2. 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.
Fri 2/204:00 pm
LGA
- SOU
2 stops20h 00m
Delta
Tue 3/108:50 am
SOU
- LGA
2 stops17h 09m
Delta
Deal found 2/2![Delta logo]()
$747
This Delta deal was found by Cheapflights users on 2/1. 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.
Fri 3/611:30 am
LGA
- SOU
2 stops16h 20m
Delta
Thu 3/198:50 am
SOU
- LGA
2 stops18h 47m
Delta
Deal found 2/1![Delta logo]()
$1,083
This Mytrip deal was found by Cheapflights users on 2/1. 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.
Fri 3/611:30 am
LGA
- SOU
2 stops24h 30m
Multiple Airlines
Thu 3/198:10 pm
SOU
- LGA
3 stops26h 53m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$1,291
This Delta deal was found by Cheapflights users on 2/1. 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.
Wed 3/1812:00 pm
LGA
- SOU
2 stops16h 20m
Delta
Wed 3/258:50 am
SOU
- LGA
2 stops18h 47m
Delta
Deal found 2/1![Delta logo]()
$697
This Mytrip deal was found by Cheapflights users on 2/1. 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.
Wed 3/186:05 am
LGA
- SOU
3 stops33h 35m
Multiple Airlines
Wed 3/2512:25 pm
SOU
- LGA
3 stops23h 12m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$1,284
This Booking.com deal was found by Cheapflights users on 2/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/209:55 am
LGA
- SOU
3 stops24h 55m
Multiple Airlines
Fri 3/275:35 pm
SOU
- LGA
3 stops31h 57m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$1,301
This Delta deal was found by Cheapflights users on 2/3. 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 3/231:00 pm
LGA
- SOU
2 stops24h 00m
Delta
Mon 4/135:20 pm
SOU
- LGA
2 stops28h 03m
Delta
Deal found 2/3![Delta logo]()
$711
This Delta deal was found by Cheapflights users on 2/3. 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 3/297:00 am
LGA
- SOU
2 stops20h 35m
Delta
Fri 4/109:05 am
SOU
- LGA
2 stops16h 25m
Delta
Deal found 2/3![Delta logo]()
$771
This Delta deal was found by Cheapflights users on 2/3. 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 3/304:00 pm
LGA
- SOU
2 stops19h 50m
Delta
Sun 4/125:20 pm
SOU
- LGA
2 stops28h 03m
Delta
Deal found 2/3![Delta logo]()
$821
One-way flights from LaGuardia to PortsmouthSearch for one-way flight options from LaGuardia to Portsmouth. Find affordable one-way fares based on user searches. Data last updated February 5, 2026.
Search for one-way flight options from LaGuardia to Portsmouth. Find affordable one-way fares based on user searches. Data last updated February 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/222:00 pm
LGA
- SOU
3 stops37h 50m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$325
This Delta deal was found by Cheapflights users on 2/2. 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.
Tue 6/211:00 am
LGA
- SOU
2 stops16h 35m
Delta
Deal found 2/2![Delta logo]()
$652
Find flight deals from LaGuardia to Portsmouth
Keep the following information in mind while searching for LaGuardia to Portsmouth flight deals. Data was last updated February 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $710 (Delta) |
One-way from | $325 (Kiwi.com) |
Popular in | December |
Cheapest in | September |
Average price | $569 |
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 February 5, 2026.
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
Wed 3/18
12:00 pm-8:20 am
2 stops16h 20m
Southampton Eastleigh
Wed 3/25
8:50 am-11:37 pm
2 stops18h 47m
$697
New YorkSouthampton
LGA - SOU
LGASOU
New York LaGuardia
Mon 3/23
1:00 pm-5:00 pm
2 stops24h 00m
Southampton Eastleigh
Mon 4/13
5:20 pm-4:23 pm
2 stops28h 03m
$711
New YorkSouthampton
LGA - SOU
LGASOU
New York LaGuardia
Wed 3/25
2:00 pm-5:25 pm
2 stops23h 25m
Southampton Eastleigh
Mon 4/13
5:20 pm-4:23 pm
2 stops28h 03m
$711
New YorkSouthampton
LGA - SOU
LGASOU
New York LaGuardia
Mon 3/30
3:00 pm-4:50 pm
2 stops20h 50m
Southampton Eastleigh
Mon 4/13
5:20 pm-4:23 pm
2 stops28h 03m
$711
New YorkSouthampton
LGA - SOU
LGASOU
New York LaGuardia
Sun 3/29
8:00 am-8:35 am
2 stops19h 35m
Southampton Eastleigh
Mon 4/13
5:20 pm-4:23 pm
2 stops28h 03m
$711
New YorkSouthampton
LGA - SOU
LGASOU
New York LaGuardia
Fri 5/22
5:40 pm-7:30 pm
2 stops20h 50m
Southampton Eastleigh
Wed 5/27
8:00 pm-9:26 pm
2 stops30h 26m
$712
New YorkSouthampton
LGA - SOU
LGASOU
New York LaGuardia
Fri 2/20
4:00 pm-5:00 pm
2 stops20h 00m
Southampton Eastleigh
Wed 3/11
8:50 am-9:59 pm
2 stops17h 09m
$747
New YorkSouthampton
LGA - SOU
LGASOU
New York LaGuardia
Fri 2/20
4:00 pm-5:00 pm
2 stops20h 00m
Southampton Eastleigh
Tue 3/10
8:50 am-9:59 pm
2 stops17h 09m
$747
New YorkSouthampton
LGA - SOU
LGASOU
New York LaGuardia
Fri 2/20
4:00 pm-5:00 pm
2 stops20h 00m
Southampton Eastleigh
Thu 3/5
8:50 am-9:00 pm
2 stops17h 10m
$747
New YorkSouthampton
LGA - SOU
LGASOU
New York LaGuardia
Fri 2/20
4:00 pm-5:00 pm
2 stops20h 00m
Southampton Eastleigh
Fri 3/6
8:50 am-9:00 pm
2 stops17h 10m
$747
Showing 1-10 of 13 results
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.
LGA-SOU
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
LGA-P0R
LGA-SOU
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 $392). Flying from New York LaGuardia Airport to Portsmouth in December is currently the most expensive (average of $905). 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 LaGuardia to Portsmouth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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LaGuardia and Portsmouth flights
Browse other LaGuardia and Portsmouth flight options. Last updated on February 5, 2026.
Other flights from LaGuardia
Browse through other flights departing from LaGuardia. Flights are based on user searches made on Cheapflights and were last updated on February 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
LaGuardia to Portsmouth flights
Consider these flights traveling from LaGuardia to Portsmouth.
Top 4 airlines flying from LaGuardia to Portsmouth
Discover the top 4 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 February 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$478 | Average$662 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$514 | Average$593 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$516 | Average$630 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$530 | Average$775 | FlexibilityNo cancel fee | On-time71% |