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Portsmouth

$257+ 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 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Flights to Portsmouth in 2025

Find the latest flights to Portsmouth in 2025, 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 October 28, 2025.

Popular in

December

Cheapest in

January

Average price

$550

Round-trip from

$470

One-way from

$257
Highest demand for flights based on searches. 4% potential increase in price.
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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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From New York to London
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One-way flight from New York to Portsmouth
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Find flight deals to Portsmouth

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 October 28, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/27. 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 12/711:45 pmJFK - SOU
1 stop14h 35mMultiple Airlines
Mon 12/157:55 pmSOU - JFK
1 stop31h 05mMultiple Airlines
Deal found 10/27$592
This Trip.com deal was found by Cheapflights users on 10/26. 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.
Wed 12/104:25 pmJFK - SOU
2 stops22h 15mMultiple Airlines
Wed 12/1712:25 pmSOU - JFK
2 stops29h 40mMultiple Airlines
Deal found 10/26$614
This Mytrip deal was found by Cheapflights users on 10/27. 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 12/711:05 amEWR - SOU
2 stops23h 30mMultiple Airlines
Mon 12/158:10 pmSOU - EWR
2 stops24h 50mMultiple Airlines
Deal found 10/27$615
This Mytrip deal was found by Cheapflights users on 10/27. 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 12/71:05 pmLGA - SOU
2 stops25h 15mMultiple Airlines
Mon 12/158:10 pmSOU - LGA
3 stops27h 52mMultiple Airlines
Deal found 10/27$657
This Delta deal was found by Cheapflights users on 10/26. 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 11/235:45 pmJFK - SOU
1 stop9h 25mDelta
Tue 12/25:30 pmSOU - JFK
1 stop23h 00mDelta
Deal found 10/26$665
This Delta deal was found by Cheapflights users on 10/28. 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 11/510:30 amJFK - SOU
2 stops25h 55mDelta
Mon 11/176:05 pmSOU - JFK
1 stop22h 20mDelta
Deal found 10/28$670
This Delta deal was found by Cheapflights users on 10/25. 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.
Tue 11/2510:15 amJFK - SOU
2 stops16h 55mDelta
Fri 12/58:40 amSOU - JFK
2 stops18h 43mDelta
Deal found 10/25$680
This Delta deal was found by Cheapflights users on 10/26. 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.
Sat 11/225:40 pmJFK - SOU
2 stops42h 45mDelta
Tue 12/25:30 pmSOU - JFK
1 stop24h 45mDelta
Deal found 10/26$681
This Delta deal was found by Cheapflights users on 10/27. 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 12/25:45 pmJFK - SOU
1 stop9h 25mDelta
Tue 1/65:30 pmSOU - JFK
1 stop24h 50mDelta
Deal found 10/27$690
This lastminute.com deal was found by Cheapflights users on 10/27. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/115:45 pmEWR - SOU
1 stop10h 00mAer Lingus
Thu 12/189:30 amSOU - EWR
1 stop11h 45mAer Lingus
Deal found 10/27$693
This Delta deal was found by Cheapflights users on 10/27. 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 12/210:08 amJFK - SOU
2 stops25h 52mDelta
Wed 1/79:25 amSOU - JFK
1 stop31h 15mDelta
Deal found 10/27$695
This Mytrip deal was found by Cheapflights users on 10/27. 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 12/1110:05 amJFK - SOU
3 stops28h 35mMultiple Airlines
Thu 12/188:10 pmSOU - JFK
3 stops24h 30mMultiple Airlines
Deal found 10/27$714

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 October 28, 2025.
Use the filters below to find and compare flights to Portsmouth that are best for you.

Fly from

New York

Route

Depart

Return

Price

NewarkSouthampton

EWR - SOU

EWRSOU

Newark

Sun 12/7

11:05 am-3:35 pm

2 stops23h 30m

Southampton Eastleigh

Mon 12/15

8:10 pm-4:00 pm

2 stops24h 50m

$615

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Sun 12/7

1:05 pm-7:20 pm

2 stops25h 15m

Southampton Eastleigh

Mon 12/15

8:10 pm-7:02 pm

3 stops27h 52m

$657

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

Wed 12/10

4:40 pm-8:20 am

1 stop10h 40m

Southampton Eastleigh

Wed 12/17

8:40 am-7:20 pm

1 stop15h 40m

$665

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

Wed 12/3

9:20 pm-5:25 pm

1 stop15h 05m

Southampton Eastleigh

Thu 1/8

5:30 pm-11:35 am

1 stop23h 05m

$665

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

Tue 12/2

10:08 am-5:00 pm

2 stops25h 52m

Southampton Eastleigh

Thu 1/8

5:30 pm-11:35 am

1 stop23h 05m

$670

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

Wed 12/10

10:52 am-8:20 am

2 stops16h 28m

Southampton Eastleigh

Wed 12/17

8:40 am-9:29 pm

2 stops17h 49m

$680

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

Sat 11/22

5:40 pm-5:25 pm

2 stops42h 45m

Southampton Eastleigh

Tue 12/2

5:30 pm-1:15 pm

1 stop24h 45m

$681

NewarkSouthampton

EWR - SOU

EWRSOU

Newark

Mon 3/16

6:59 pm-8:10 am

2 stops33h 11m

Southampton Eastleigh

Tue 3/24

5:30 pm-7:37 am

2 stops42h 07m

$688

NewarkSouthampton

EWR - SOU

EWRSOU

Newark

Wed 3/11

10:25 am-8:05 am

2 stops41h 40m

Southampton Eastleigh

Wed 3/18

8:40 am-7:37 am

2 stops26h 57m

$688

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

Tue 12/2

9:20 pm-5:00 pm

1 stop14h 40m

Southampton Eastleigh

Wed 1/7

9:25 am-11:40 am

1 stop31h 15m

$690

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 46 results
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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 28 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.

When is the cheapest time to fly to Portsmouth?

Use this chart to determine the cheapest time to fly round-trip from New York to Portsmouth. Price data was last updated on December 16, 2024.

Users looking for the lowest fares to Portsmouth should consider flying on Monday at noon, when prices are typically cheapest. Budget-minded travelers will want to avoid Saturday evenings, when prices are usually at their highest.

Weekly flight availability to Portsmouth

The most flights from New York to Portsmouth are scheduled on a Monday (146 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (117 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.

Aer Lingus
Aer Lingus
From $623
Delta
Delta
From $546
KLM
KLM
From $656
Virgin Atlantic
Virgin Atlantic
From $802

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 October 28, 2025.
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
7.7
Good
1,406 reviews

Overall

7.7

Comfort

7.7

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,406 reviews
KLM
7.7
Good
1,406 reviews

Overall

7.7

Comfort

7.7

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Aer Lingus
7.2
Good
1,360 reviews
KLM
7.7
Good
1,406 reviews

Overall

7.7

Comfort

7.7

Entertainment

7.1

Food

7.3

Boarding

7.8

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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 $254, however they can be found for as little as $46.

  • Where does the fastest flight to Portsmouth depart from?

    For those looking to save time traveling to Portsmouth, Chicago offers the quickest one-way flight (9 hours 55 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. Aerotel London Heathrow T2 & T3 is the closest property to London Heathrow (0.0 mi away from London Heathrow).

See more FAQs

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