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Portsmouth

$318+ 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
Jul 11 — Jul 181
Sat 7/11
Sat 7/18
1 adult, Economy
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Flights to Portsmouth in 2026

Cheapest flights to Portsmouth
Explore the most affordable flight options available to Portsmouth. Find the lowest fares based on data from user searches, with prices last updated on June 11, 2026.

This Trip.com deal was found by Cheapflights users on 6/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/18:25 pm
EWR
-
SOU
2 stops18h 05m
Multiple Airlines
Mon 10/59:20 am
SOU
-
EWR
2 stops14h 55m
Multiple Airlines
Deal found 6/7$678
This Mytrip deal was found by Cheapflights users on 6/9. 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 8/3011:10 pm
JFK
-
SOU
2 stops12h 40m
Multiple Airlines
Sun 9/69:20 am
SOU
-
JFK
2 stops15h 00m
Multiple Airlines
Deal found 6/9$737
This Mytrip deal was found by Cheapflights users on 6/9. 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 8/298:30 pm
JFK
-
SOU
2 stops15h 20m
Multiple Airlines
Sun 9/69:20 am
SOU
-
JFK
2 stops15h 00m
Multiple Airlines
Deal found 6/9$751
This Vliegwinkel deal was found by Cheapflights users on 6/8. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/34:55 pm
JFK
-
SOU
1 stop18h 55m
Aer Lingus
Wed 8/199:20 am
SOU
-
JFK
1 stop18h 05m
Aer Lingus
Deal found 6/8$769
This Mytrip deal was found by Cheapflights users on 6/7. 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 10/18:30 pm
JFK
-
SOU
2 stops18h 00m
Multiple Airlines
Mon 10/59:20 am
SOU
-
JFK
2 stops15h 00m
Multiple Airlines
Deal found 6/7$777
This Vliegwinkel deal was found by Cheapflights users on 6/8. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/35:35 pm
EWR
-
SOU
1 stop18h 15m
Aer Lingus
Wed 8/199:20 am
SOU
-
EWR
1 stop11h 45m
Aer Lingus
Deal found 6/8$781
This Mytrip deal was found by Cheapflights users on 6/8. 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 9/26:30 am
LGA
-
SOU
2 stops32h 00m
Multiple Airlines
Fri 9/118:00 pm
SOU
-
LGA
2 stops23h 36m
Multiple Airlines
Deal found 6/8$784
This Mytrip deal was found by Cheapflights users on 6/9. 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 10/78:30 pm
JFK
-
SOU
2 stops18h 00m
Multiple Airlines
Sat 10/179:20 am
SOU
-
JFK
2 stops15h 00m
Multiple Airlines
Deal found 6/9$811
This Mytrip deal was found by Cheapflights users on 6/8. 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 8/33:30 pm
LGA
-
SOU
2 stops20h 20m
Multiple Airlines
Wed 8/196:05 pm
SOU
-
LGA
3 stops25h 32m
Multiple Airlines
Deal found 6/8$850
This Trip.com deal was found by Cheapflights users on 6/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/218:30 pm
JFK
-
SOU
2 stops15h 20m
Multiple Airlines
Tue 7/289:15 am
SOU
-
JFK
2 stops15h 05m
Multiple Airlines
Deal found 6/6$850
This Trip.com deal was found by Cheapflights users on 6/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/111:55 pm
JFK
-
SOU
1 stop14h 35m
Aer Lingus
Mon 10/59:20 am
SOU
-
JFK
1 stop18h 05m
Aer Lingus
Deal found 6/7$851
This Mytrip deal was found by Cheapflights users on 6/7. 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 7/223:30 pm
LGA
-
SOU
2 stops23h 00m
Multiple Airlines
Wed 7/296:05 pm
SOU
-
LGA
3 stops32h 25m
Multiple Airlines
Deal found 6/7$853

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 June 11, 2026.

Popular in

June

Cheapest in

September

Average price

$840

Round-trip from

$723

One-way from

$318
Highest demand for flights based on searches. 18% potential increase in price ($136 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
From New York to London
Search Deals
One-way flight from New York to Portsmouth
Search Deals

Cheapflights Fare Finder

 
Locate flights to Portsmouth that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 2,558,603 searches and data was last updated on June 11, 2026.
Use the filters below to find and compare flights to Portsmouth that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest round-trip

NewarkSouthampton

EWR - SOU

EWRSOU

Newark

Thu 10/1

5:35 pm-7:30 pm

1 stop20h 55m

Southampton Eastleigh

Mon 10/5

9:20 am-4:05 pm

1 stop11h 45m

$918

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Sat 8/15

6:30 am-7:30 pm

3 stops32h 00m

Southampton Eastleigh

Sat 8/22

9:20 am-9:30 pm

3 stops17h 10m

$966

NewarkSouthampton

EWR - SOU

EWRSOU

Newark

Mon 8/3

3:45 pm-1:45 pm

2 stops17h 00m

Southampton Eastleigh

Wed 8/19

6:05 pm-7:05 pm

3 stops30h 00m

$969

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Mon 8/3

3:30 pm-1:45 pm

2 stops17h 15m

Southampton Eastleigh

Wed 8/19

6:05 pm-9:30 pm

3 stops32h 25m

$971

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Wed 7/22

5:40 pm-8:45 pm

3 stops22h 05m

Southampton Eastleigh

Wed 7/29

8:00 pm-2:59 pm

2 stops23h 59m

$1,006

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Wed 8/19

10:59 am-8:45 am

2 stops16h 46m

Southampton Eastleigh

Sun 8/30

9:15 am-9:28 pm

2 stops17h 13m

$1,144

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Wed 10/7

12:00 pm-8:35 am

2 stops15h 35m

Southampton Eastleigh

Sat 10/17

9:20 am-8:15 pm

2 stops15h 55m

$1,144

NewarkSouthampton

EWR - SOU

EWRSOU

Newark

Sun 6/21

10:25 am-7:30 pm

3 stops28h 05m

Southampton Eastleigh

Wed 6/24

2:20 pm-12:50 pm

3 stops27h 30m

$1,147

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Tue 7/21

6:50 am-12:00 pm

2 stops24h 10m

Southampton Eastleigh

Tue 7/28

9:15 am-8:55 am

2 stops28h 40m

$1,159

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Wed 10/7

9:55 am-11:05 am

2 stops20h 10m

Southampton Eastleigh

Sat 10/17

6:15 pm-7:25 pm

3 stops30h 10m

$1,164

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/6

Showing 1-10 of 60 resultsSorted by cheapest first
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6

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.
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 to Portsmouth

How long is the flight to Portsmouth?

On average, a flight from New York to Portsmouth takes 16 hours 41 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 (157 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (147 on average).

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 June 11, 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.
KLM
7.8
Good
1,527 reviews

Boarding

7.8

Overall

7.8

Crew

8.4

Entertainment

7.2

Comfort

7.7

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
KLM
7.8
Good
1,527 reviews
KLM
7.8
Good
1,527 reviews

Boarding

7.8

Overall

7.8

Crew

8.4

Entertainment

7.2

Comfort

7.7

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful
Aer Lingus
7.3
Good
1,603 reviews
KLM
7.8
Good
1,527 reviews

Boarding

7.8

Overall

7.8

Crew

8.4

Entertainment

7.2

Comfort

7.7

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

FAQs about flying to Portsmouth

  • Can I find cheaper flights to Portsmouth if I am willing to have layovers?

    Yes, flights with layovers are often cheaper than direct flights. Keep an eye out for flight deals to Portsmouth on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to Portsmouth?

    Based on reviews from Cheapflights users, JetBlue is rated the highest out of the airlines that fly to Portsmouth.

  • How much is a round-trip flight to Portsmouth?

    A round-trip flight to Portsmouth will typically cost around $387, however they can be found for as little as $81.

  • Where does the fastest flight to Portsmouth depart from?

    For those looking to save time traveling to Portsmouth, Boston Logan Intl offers the quickest one-way flight (9 hours 50 minutes).

  • Does London Heathrow have rental cars?

    Yes. Those touching down at London Heathrow can take advantage of the rental car services offered upon their arrival.

  • Are there hotels close to London Heathrow?

    Yes. London Heathrow has hotels nearby for those requiring accommodations. Aeropartment & Aerotel, London Heathrow Airport, Terminal 4, Ev Stations & Cheap Parking On Site! is the closest property to London Heathrow (0.0 mi away from London Heathrow).

See more FAQs

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