What is the cheapest month to fly to Portsmouth?

Currently, the cheapest month for flights to Portsmouth is November . The most expensive month for flights is June . The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

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 $464, however they can be found for as little as $47.

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 0 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 is the closest property to London Heathrow (0.0 mi away from London Heathrow).

$225+ Flights to Portsmouth

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Flights to Portsmouth in 2025

Popular in	December
Cheapest in	January
Average price	$634
Round-trip from	$442
One-way from	$225

Highest demand for flights based on searches. 4% potential increase in price.

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in July 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 July 29, 2025.

Thu 11/611:45 pmJFK - SOU

1 stop14h 50mMultiple Airlines

Sun 11/98:10 pmSOU - JFK

2 stops30h 50mMultiple Airlines

Deal found 7/29$564

Mon 9/85:35 pmEWR - SOU

1 stop10h 05mAer Lingus

Wed 9/249:10 amSOU - EWR

1 stop11h 55mAer Lingus

Deal found 7/27$567

Mon 9/88:25 pmEWR - SOU

2 stops18h 05mMultiple Airlines

Wed 9/248:00 pmSOU - EWR

2 stops28h 10mMultiple Airlines

Deal found 7/27$609

Mon 9/85:45 pmLGA - SOU

2 stops20h 45mMultiple Airlines

Wed 9/248:00 pmSOU - LGA

2 stops30h 30mMultiple Airlines

Deal found 7/27$620

Sun 9/712:50 amJFK - SOU

1 stop11h 10mVirgin Atlantic

Wed 9/245:35 pmSOU - JFK

1 stop10h 15mVirgin Atlantic

Deal found 7/27$627

Mon 9/84:55 pmJFK - SOU

1 stop10h 45mAer Lingus

Wed 9/249:10 amSOU - JFK

1 stop15h 10mAer Lingus

Deal found 7/28$629

Sun 8/1012:50 amJFK - SOU

1 stop12h 00mDelta

Wed 8/206:25 pmSOU - JFK

1 stop22h 50mDelta

Deal found 7/29$666

Mon 9/81:00 pmLGA - SOU

2 stops14h 50mDelta

Wed 9/249:20 amSOU - LGA

2 stops15h 09mDelta

Deal found 7/28$672

Wed 9/33:40 pmEWR - SOU

2 stops12h 05mKLM

Tue 9/169:20 amSOU - EWR

2 stops15h 10mKLM

Deal found 7/29$681

Wed 9/34:00 pmLGA - SOU

2 stops11h 45mKLM

Tue 9/169:20 amSOU - LGA

2 stops15h 09mKLM

Deal found 7/27$682

Fri 10/173:40 pmEWR - SOU

2 stops12h 05mDelta

Sat 11/19:25 amSOU - EWR

2 stops17h 45mDelta

Deal found 7/28$782

Best flights to Portsmouth
Discover carefully curated flight deals to Portsmouth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Thu 11/611:45 pmJFK - SOU

1 stop14h 50mMultiple Airlines

Sun 11/98:10 pmSOU - JFK

2 stops30h 50mMultiple Airlines

Deal found 7/29$564

Mon 9/85:35 pmEWR - SOU

1 stop10h 05mAer Lingus

Wed 9/249:10 amSOU - EWR

1 stop11h 55mAer Lingus

Deal found 7/27$567

Sun 9/712:50 amJFK - SOU

1 stop11h 10mVirgin Atlantic

Wed 9/245:35 pmSOU - JFK

1 stop10h 15mVirgin Atlantic

Deal found 7/27$627

Sun 8/1012:50 amJFK - SOU

1 stop12h 00mDelta

Wed 8/206:25 pmSOU - JFK

1 stop24h 00mDelta

Deal found 7/29$666

Wed 9/33:40 pmEWR - SOU

2 stops12h 05mKLM

Tue 9/169:20 amSOU - EWR

2 stops15h 10mKLM

Deal found 7/29$681

Mon 9/88:25 pmEWR - SOU

2 stops18h 05mMultiple Airlines

Wed 9/248:00 pmSOU - EWR

2 stops28h 10mMultiple Airlines

Deal found 7/27$609

Mon 9/84:55 pmJFK - SOU

1 stop10h 45mAer Lingus

Wed 9/249:10 amSOU - JFK

1 stop15h 10mAer Lingus

Deal found 7/28$629

Mon 9/81:00 pmLGA - SOU

2 stops14h 50mDelta

Wed 9/249:20 amSOU - LGA

2 stops15h 09mDelta

Deal found 7/28$672

Mon 9/85:45 pmLGA - SOU

2 stops20h 45mMultiple Airlines

Wed 9/248:00 pmSOU - LGA

2 stops30h 30mMultiple Airlines

Deal found 7/27$620

Wed 9/34:00 pmLGA - SOU

2 stops11h 45mKLM

Tue 9/169:20 amSOU - LGA

2 stops15h 09mKLM

Deal found 7/27$682

Fri 10/173:40 pmEWR - SOU

2 stops12h 05mDelta

Sat 11/19:25 amSOU - EWR

2 stops17h 45mDelta

Deal found 7/28$782

Last-minute flights to Portsmouth
Discover last-minute flight deals to Portsmouth. Data last updated July 29, 2025 and is based on user searches.

Sun 8/34:55 pmJFK - SOU

1 stop11h 15mBritish Airways

Fri 8/88:55 amSOU - JFK

2 stops16h 00mBritish Airways

Deal found 7/27$1,315

Wed 8/66:29 amJFK - SOU

2 stops21h 16mDelta

Wed 8/206:25 pmSOU - JFK

1 stop24h 00mDelta

Deal found 7/27$672

Thu 8/71:59 pmLGA - SOU

2 stops13h 46mDelta

Mon 8/186:25 pmSOU - LGA

2 stops26h 29mDelta

Deal found 7/29$731

Fri 8/85:30 pmJFK - SOU

1 stop10h 15mKLM

Tue 8/126:25 pmSOU - JFK

1 stop29h 40mKLM

Deal found 7/29$806

Fri 8/85:59 pmEWR - SOU

2 stops18h 01mDelta

Tue 8/129:20 amSOU - EWR

2 stops18h 44mDelta

Deal found 7/29$1,005

Fri 8/85:55 pmEWR - SOU

2 stops13h 00mBritish Airways

Tue 8/129:10 amSOU - EWR

1 stop11h 55mBritish Airways

Deal found 7/29$1,879

Sun 8/1012:50 amJFK - SOU

1 stop12h 00mDelta

Wed 8/206:25 pmSOU - JFK

1 stop24h 00mDelta

Deal found 7/29$666

Sun 8/1010:59 amLGA - SOU

2 stops16h 46mDelta

Mon 8/186:25 pmSOU - LGA

2 stops26h 29mDelta

Deal found 7/29$681

Fri 8/225:35 pmEWR - SOU

1 stop10h 05mAer Lingus

Mon 9/18:00 pmSOU - EWR

1 stop25h 05mAer Lingus

Deal found 7/27$971

Fri 8/223:35 pmEWR - SOU

2 stops12h 10mKLM

Mon 9/19:20 amSOU - EWR

2 stops15h 10mKLM

Deal found 7/28$2,011

Wed 8/2711:10 pmJFK - SOU

2 stops12h 25mMultiple Airlines

Wed 9/39:10 amSOU - JFK

2 stops18h 00mMultiple Airlines

Deal found 7/28$617

Wed 8/279:00 amEWR - SOU

2 stops29h 30mMultiple Airlines

Wed 9/38:00 pmSOU - EWR

2 stops30h 00mMultiple Airlines

Deal found 7/28$728

One-way flights to Portsmouth
Search for one-way flight options to Portsmouth. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Tue 10/1411:25 pmJFK - SOU

2 stops32h 20mMultiple Airlines

Deal found 7/27$225

Tue 10/1410:50 pmEWR - SOU

3 stops32h 55mMultiple Airlines

Deal found 7/27$263

Tue 10/144:55 pmJFK - SOU

1 stop10h 10mAer Lingus

Deal found 7/27$319

Tue 9/25:35 pmEWR - SOU

1 stop9h 30mAer Lingus

Deal found 7/29$319

Wed 8/2710:15 amLGA - SOU

2 stops28h 15mMultiple Airlines

Deal found 7/28$321

Mon 8/1112:50 amJFK - SOU

1 stop12h 00mDelta

Deal found 7/28$452

Tue 9/24:00 pmLGA - SOU

2 stops11h 45mKLM

Deal found 7/29$457

Tue 8/121:16 pmEWR - SOU

2 stops23h 34mDelta

Deal found 7/28$457

Sat 8/165:00 pmLGA - SOU

2 stops43h 50mDelta

Deal found 7/29$469

Fly from

Route

Depart

Return

Price

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

Thu 11/6

11:45 pm-7:35 pm

1 stop14h 50m

Southampton Eastleigh

Sun 11/9

8:10 pm-10:00 pm

2 stops30h 50m

$564

NewarkSouthampton

EWR - SOU

EWRSOU

Newark

Mon 9/8

5:35 pm-8:40 am

1 stop10h 05m

Southampton Eastleigh

Wed 9/24

9:10 am-4:05 pm

1 stop11h 55m

$567

NewarkSouthampton

EWR - SOU

EWRSOU

Newark

Mon 9/8

8:25 pm-7:30 pm

2 stops18h 05m

Southampton Eastleigh

Wed 9/24

8:00 pm-7:10 pm

2 stops28h 10m

$609

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Mon 9/8

5:45 pm-7:30 pm

2 stops20h 45m

Southampton Eastleigh

Wed 9/24

8:00 pm-9:30 pm

2 stops30h 30m

$620

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

Sun 9/7

12:50 am-5:00 pm

1 stop11h 10m

Southampton Eastleigh

Wed 9/24

5:35 pm-10:50 pm

1 stop10h 15m

$627

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

Mon 9/8

4:55 pm-8:40 am

1 stop10h 45m

Southampton Eastleigh

Wed 9/24

9:10 am-7:20 pm

1 stop15h 10m

$629

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

Sun 8/10

12:50 am-5:50 pm

1 stop12h 00m

Southampton Eastleigh

Wed 8/20

6:25 pm-1:25 pm

1 stop24h 00m

$666

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Mon 9/8

1:00 pm-8:50 am

2 stops14h 50m

Southampton Eastleigh

Wed 9/24

9:20 am-7:29 pm

2 stops15h 09m

$672

NewarkSouthampton

EWR - SOU

EWRSOU

Newark

Wed 9/3

3:40 pm-8:45 am

2 stops12h 05m

Southampton Eastleigh

Tue 9/16

9:20 am-7:30 pm

2 stops15h 10m

$681

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Wed 9/3

4:00 pm-8:45 am

2 stops11h 45m

Southampton Eastleigh

Tue 9/16

9:20 am-7:29 pm

2 stops15h 09m

$682

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 20 results

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 13 hours 27 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?

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 (171 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (143 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

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

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 a feel of what it's like to fly with Delta, KLM, and Virgin Atlantic 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.

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kymberlee,Oct 2024

JFK - ATL

Overall it was good on the flight. Before the flight with checking the bag at JFK was a nightmare. It took way too long and the Delta concierge was very rude to everyone. But other than that it was fine.

Delta

8.0

Very good

7,977 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kymberlee,Oct 2024

JFK - ATL

KLM

7.8

Good

1,383 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kymberlee,Oct 2024

JFK - ATL

Virgin Atlantic

7.4

Good

655 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kymberlee,Oct 2024

JFK - ATL

Aer Lingus

7.1

Good

1,190 reviews

Delta

8.0

Very good

7,977 reviews

Reviews

1 / 20

10.0

Excellent

Kymberlee,Oct 2024

JFK - ATL

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 $464, however they can be found for as little as $47.
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 0 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 is the closest property to London Heathrow (0.0 mi away from London Heathrow).

See more FAQs

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$225+ 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights to Portsmouth with Cheapflights

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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 July 29, 2025.

Popular in

Cheapest in

Average price

Round-trip from

One-way from

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 July 29, 2025.

Explore the most affordable flight options available to Portsmouth. Find the lowest fares based on data from user searches, with prices last updated on July 29, 2025.

Cheapflights Fare Finder

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

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?

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 September 8, 2024.

Weekly flight availability to Portsmouth

What are the most popular airlines that fly to Portsmouth?

What are the cheapest airlines that fly to Portsmouth?

Rainfall in Portsmouth by month

Plan your trip to Portsmouth by taking into account the average rainfall totals by month.

Temperature in Portsmouth by month

Plan your trip to Portsmouth by taking into account the average temperature totals by month.

Reviews of airlines servicing Portsmouth

Get a feel of what it's like to fly with Delta, KLM, and Virgin Atlantic 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.

FAQs about flying to Portsmouth

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

What is the best airline to fly to Portsmouth?

How much is a round-trip flight to Portsmouth?

Where does the fastest flight to Portsmouth depart from?

Does London Heathrow have rental cars?

Are there hotels close to London Heathrow?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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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 July 29, 2025.