$290+ Cheap flights to Portsmouth
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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights 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
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Flights to Portsmouth in 2026
Find the latest flights to Portsmouth in 2026, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 2,558,603 searches and data was last updated on enero 15, 2026.
Popular in | December |
|---|---|
Cheapest in | September |
Average price | $568 |
Round-trip from | $474 |
One-way from | $290 |
Find flight deals to Portsmouth
Cheapest flights to PortsmouthExplore the most affordable flight options available to Portsmouth. Find the lowest fares based on data from user searches, with prices last updated on enero 15, 2026.
Explore the most affordable flight options available to Portsmouth. Find the lowest fares based on data from user searches, with prices last updated on enero 15, 2026.
This Mytrip deal was found by Cheapflights users on 1/15. 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.
This Mytrip deal was found by Cheapflights users on 1/13. 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.
This Mytrip deal was found by Cheapflights users on 1/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This lol.travel deal was found by Cheapflights users on 1/14. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Kiwi.com deal was found by Cheapflights users on 1/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 1/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 1/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 1/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip deal was found by Cheapflights users on 1/13. 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.
This Delta deal was found by Cheapflights users on 1/13. 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.
This Delta deal was found by Cheapflights users on 1/13. 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.
This Delta deal was found by Cheapflights users on 1/13. 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.
Cheapflights Fare Finder
Use the filters below to find and compare flights to Portsmouth that are best for you.
Fly from
Route
Depart
Return
Price
New YorkSouthampton
LGA - SOU
LGASOU
New York LaGuardia
dom. 3/1
10:10 am-7:40 pm
2 stops28h 30m
Southampton Eastleigh
dom. 3/8
8:10 pm-3:38 pm
2 stops23h 28m
NewarkSouthampton
EWR - SOU
EWRSOU
Newark
sáb. 2/28
5:45 pm-8:45 am
1 stop10h 00m
Southampton Eastleigh
sáb. 3/7
9:30 am-4:15 pm
1 stop11h 45m
New YorkSouthampton
LGA - SOU
LGASOU
New York LaGuardia
sáb. 2/28
3:30 pm-7:40 pm
2 stops23h 10m
Southampton Eastleigh
sáb. 3/7
5:30 pm-9:33 pm
3 stops33h 03m
NewarkSouthampton
EWR - SOU
EWRSOU
Newark
sáb. 2/28
5:30 pm-2:45 pm
2 stops16h 15m
Southampton Eastleigh
sáb. 3/7
3:25 pm-1:35 pm
2 stops27h 10m
New YorkSouthampton
JFK - SOU
JFKSOU
New York John F Kennedy Intl
mié. 2/18
9:20 pm-5:05 pm
1 stop14h 45m
Southampton Eastleigh
mié. 2/25
8:50 am-7:20 pm
1 stop15h 30m
New YorkSouthampton
JFK - SOU
JFKSOU
New York John F Kennedy Intl
mié. 2/18
1:59 pm-5:05 pm
2 stops22h 06m
Southampton Eastleigh
jue. 2/26
6:05 pm-11:25 am
1 stop22h 20m
New YorkSouthampton
JFK - SOU
JFKSOU
New York John F Kennedy Intl
mar. 2/17
6:00 am-8:50 am
2 stops21h 50m
Southampton Eastleigh
jue. 2/26
6:05 pm-3:45 pm
1 stop26h 40m
New YorkSouthampton
LGA - SOU
LGASOU
New York LaGuardia
mié. 2/11
11:30 am-8:25 am
2 stops15h 55m
Southampton Eastleigh
mié. 2/18
9:25 am-11:44 pm
2 stops19h 19m
New YorkSouthampton
LGA - SOU
LGASOU
New York LaGuardia
mié. 3/11
8:35 am-5:25 pm
2 stops28h 50m
Southampton Eastleigh
mié. 3/18
8:50 am-9:42 pm
2 stops16h 52m
New YorkSouthampton
JFK - SOU
JFKSOU
New York John F Kennedy Intl
mié. 5/6
11:14 am-8:35 am
2 stops16h 21m
Southampton Eastleigh
lun. 5/11
5:20 pm-5:05 pm
1 stop28h 45m
Best time to book a flight to Portsmouth
Have a flexible travel schedule? Discover the best time to fly to Portsmouth with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight to Portsmouth
How long is the flight to Portsmouth?
On average, a flight from New York to Portsmouth takes 17 hours 21 minutes. Flights to Portsmouth from other popular cities in USA will vary in length. Below are a few examples of popular routes and their flight times.
Weekly flight availability to Portsmouth
The most flights from New York to Portsmouth are scheduled on a Wednesday (140 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (96 on average).
What are the most popular airlines that fly to Portsmouth?
The most popular airlines flying from New York to Portsmouth are Aer Lingus and KLM.
What are the cheapest airlines that fly to Portsmouth?
The cheapest airlines flying from New York to Portsmouth are KLM and Aer Lingus.
Rainfall in Portsmouth by month
Plan your trip to Portsmouth by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Portsmouth ranges from 1.0 - 3.0 inches per month. December is typically the wettest month, when rainfall can reach 3.0 in. July is typically the driest time to visit Portsmouth when rainfall is around 1.0 in.
Temperature in Portsmouth by month
Plan your trip to Portsmouth by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Portsmouth, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 39.2 F).
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 enero 15, 2026.
Get a feel of what it's like to fly with KLM and Aer Lingus to the United Kingdom by reading reviews from past customers. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
Entertainment
Crew
Overall
Boarding
Comfort
Reviews
Snapyou,Jan 2026
TPA - LHR
Food
Entertainment
Crew
Overall
Boarding
Comfort
Reviews
Snapyou,Jan 2026
TPA - LHR
Food
Entertainment
Crew
Overall
Boarding
Comfort
Reviews
Snapyou,Jan 2026
TPA - LHR