$451+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
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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 January 26, 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 January 26, 2026.
This Kiwi.com deal was found by Cheapflights users on 1/24. 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 Delta deal was found by Cheapflights users on 1/24. 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 1/24. 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 Mytrip deal was found by Cheapflights users on 1/25. 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 1/25. 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 1/24. 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 KLM deal was found by Cheapflights users on 1/25. 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.
This Delta deal was found by Cheapflights users on 1/25. 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 Mytrip deal was found by Cheapflights users on 1/25. 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 Connections by easyJet deal was found by Cheapflights users on 1/25. 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 Connections by easyJet 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 1/24. 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 Expedia deal was found by Cheapflights users on 1/24. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Find flight deals to Portsmouth
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 January 26, 2026.
Popular in | December |
|---|---|
Cheapest in | September |
Average price | $561 |
Round-trip from | $465 |
One-way from | $451 |
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
JFK - SOU
JFKSOU
New York John F Kennedy Intl
Sun 3/8
7:45 pm-5:05 pm
1 stop17h 20m
Southampton Eastleigh
Tue 3/24
8:50 am-4:45 pm
1 stop11h 55m
NewarkSouthampton
EWR - SOU
EWRSOU
Newark
Wed 3/11
8:35 pm-5:20 pm
2 stops16h 45m
Southampton Eastleigh
Wed 3/18
9:25 am-7:25 pm
2 stops14h 00m
New YorkSouthampton
JFK - SOU
JFKSOU
New York John F Kennedy Intl
Sat 3/7
4:40 pm-8:50 am
1 stop11h 10m
Southampton Eastleigh
Tue 3/24
8:50 am-4:45 pm
1 stop11h 55m
New YorkSouthampton
JFK - SOU
JFKSOU
New York John F Kennedy Intl
Thu 3/12
5:40 pm-5:00 pm
1 stop19h 20m
Southampton Eastleigh
Thu 3/19
8:50 am-4:45 pm
1 stop11h 55m
New YorkSouthampton
JFK - SOU
JFKSOU
New York John F Kennedy Intl
Thu 3/5
9:20 pm-8:50 am
1 stop30h 30m
Southampton Eastleigh
Tue 3/24
5:35 pm-9:29 pm
2 stops31h 54m
New YorkSouthampton
JFK - SOU
JFKSOU
New York John F Kennedy Intl
Sun 3/8
5:40 pm-8:20 am
1 stop10h 40m
Southampton Eastleigh
Mon 3/23
5:40 pm-8:20 pm
1 stop30h 40m
New YorkSouthampton
LGA - SOU
LGASOU
New York LaGuardia
Wed 2/11
1:00 pm-5:05 pm
2 stops23h 05m
Southampton Eastleigh
Sun 2/22
5:45 pm-7:00 pm
2 stops30h 15m
New YorkSouthampton
LGA - SOU
LGASOU
New York LaGuardia
Wed 2/11
2:00 pm-5:05 pm
2 stops22h 05m
Southampton Eastleigh
Mon 2/23
8:50 am-11:44 pm
2 stops19h 54m
New YorkSouthampton
JFK - SOU
JFKSOU
New York John F Kennedy Intl
Thu 3/12
5:40 pm-8:20 am
1 stop10h 40m
Southampton Eastleigh
Thu 3/19
8:50 am-12:45 am
2 stops19h 55m
New YorkSouthampton
JFK - SOU
JFKSOU
New York John F Kennedy Intl
Wed 3/4
9:20 pm-8:20 am
1 stop30h 00m
Southampton Eastleigh
Fri 3/20
8:50 am-9:29 pm
2 stops16h 39m
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 16 hours 45 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 Friday (153 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (128 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 January 26, 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.
Boarding
Overall
Entertainment
Food
Comfort
Crew
Reviews
Snapyou,Jan 2026
TPA - LHR
Boarding
Overall
Entertainment
Food
Comfort
Crew
Reviews
Snapyou,Jan 2026
TPA - LHR
Boarding
Overall
Entertainment
Food
Comfort
Crew
Reviews
Snapyou,Jan 2026
TPA - LHR