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 $183, however they can be found for as little as $56.

Where does the fastest flight to Portsmouth depart from?

For those looking to save time traveling to Portsmouth, New York offers the quickest one-way flight (9 hours 30 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).

$210+ Cheap Flights to Portsmouth

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Flights to Portsmouth in 2025

Popular in	December
Cheapest in	January
Average price	$515
Round-trip from	$422
One-way from	$210

Highest demand for flights based on searches. 3% potential increase in price.

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in September 2025

Search Deals

From New York to London

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One-way flight from New York to Portsmouth

Search Deals

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 September 11, 2025.

Mon 10/209:35 pmJFK - SOU

1 stop16h 55mMultiple Airlines

Tue 11/48:10 pmSOU - JFK

2 stops21h 45mMultiple Airlines

Deal found 9/11$511

Sun 10/266:05 amLGA - SOU

3 stops33h 35mMultiple Airlines

Sun 11/28:10 pmSOU - LGA

3 stops27h 53mMultiple Airlines

Deal found 9/11$532

Sun 10/264:25 pmEWR - SOU

2 stops23h 15mMultiple Airlines

Sun 11/28:10 pmSOU - EWR

2 stops28h 28mMultiple Airlines

Deal found 9/11$532

Mon 10/204:55 pmJFK - SOU

1 stop10h 20mAer Lingus

Tue 11/412:25 pmSOU - JFK

1 stop12h 00mAer Lingus

Deal found 9/11$552

Tue 10/77:00 pmJFK - SOU

2 stops19h 30mAer Lingus

Mon 10/208:00 pmSOU - JFK

2 stops26h 15mAer Lingus

Deal found 9/9$556

Mon 10/206:20 pmJFK - SOU

2 stops20h 10mMultiple Airlines

Mon 11/37:55 pmSOU - JFK

2 stops29h 10mMultiple Airlines

Deal found 9/10$566

Sat 10/254:55 pmJFK - SOU

1 stop11h 50mAer Lingus

Sat 11/19:30 amSOU - JFK

1 stop14h 55mAer Lingus

Deal found 9/10$571

Fri 10/244:55 pmJFK - SOU

1 stop10h 45mAer Lingus

Fri 10/319:30 amSOU - JFK

1 stop14h 55mAer Lingus

Deal found 9/9$606

Mon 10/201:45 pmEWR - SOU

2 stops24h 45mMultiple Airlines

Tue 11/45:30 pmSOU - EWR

3 stops32h 00mMultiple Airlines

Deal found 9/10$606

Mon 10/205:35 pmEWR - SOU

1 stop9h 40mMultiple Airlines

Mon 11/37:55 pmSOU - EWR

2 stops31h 15mMultiple Airlines

Deal found 9/10$617

Sun 10/266:45 pmEWR - SOU

1 stop10h 00mAer Lingus

Sun 11/29:30 amSOU - EWR

1 stop11h 45mAer Lingus

Deal found 9/11$627

Tue 9/235:35 pmEWR - SOU

1 stop9h 30mAer Lingus

Fri 9/269:40 amSOU - EWR

1 stop11h 25mAer Lingus

Deal found 9/10$670

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 September 11, 2025.

Mon 10/209:35 pmJFK - SOU

1 stop16h 55mMultiple Airlines

Tue 11/48:10 pmSOU - JFK

2 stops21h 45mMultiple Airlines

Deal found 9/11$511

Mon 10/204:55 pmJFK - SOU

1 stop10h 20mAer Lingus

Tue 11/412:25 pmSOU - JFK

1 stop12h 00mAer Lingus

Deal found 9/11$552

Wed 11/196:50 pmJFK - SOU

1 stop32h 15mDelta

Thu 11/276:05 pmSOU - JFK

1 stop22h 15mDelta

Deal found 9/10$780

Sat 10/2511:29 amLGA - SOU

2 stops17h 21mKLM

Sat 11/19:25 amSOU - LGA

2 stops15h 38mKLM

Deal found 9/10$909

Sun 10/2612:45 pmLGA - SOU

2 stops26h 55mMultiple Airlines

Sun 11/28:10 pmSOU - LGA

3 stops25h 49mMultiple Airlines

Deal found 9/11$532

Tue 10/77:00 pmJFK - SOU

2 stops19h 30mAer Lingus

Mon 10/208:00 pmSOU - JFK

2 stops26h 15mAer Lingus

Deal found 9/9$556

Mon 10/205:35 pmEWR - SOU

1 stop9h 40mMultiple Airlines

Mon 11/37:55 pmSOU - EWR

2 stops31h 15mMultiple Airlines

Deal found 9/10$617

Wed 11/196:50 pmJFK - SOU

1 stop32h 15mDelta

Mon 12/16:05 pmSOU - JFK

1 stop22h 25mDelta

Deal found 9/10$780

Mon 10/205:35 pmEWR - SOU

3 stops20h 55mMultiple Airlines

Tue 11/43:20 pmSOU - EWR

3 stops29h 10mMultiple Airlines

Deal found 9/11$652

Wed 10/84:55 pmJFK - SOU

1 stop10h 45mAer Lingus

Sun 10/128:00 pmSOU - JFK

2 stops26h 15mAer Lingus

Deal found 9/9$730

Wed 11/262:50 pmJFK - SOU

2 stops21h 35mDelta

Mon 12/16:05 pmSOU - JFK

1 stop30h 15mDelta

Deal found 9/10$784

Mon 10/205:35 pmEWR - SOU

1 stop9h 40mAer Lingus

Tue 11/48:10 pmSOU - EWR

1 stop25h 05mAer Lingus

Deal found 9/11$775

Last-minute flights to Portsmouth
Discover last-minute flight deals to Portsmouth. Data last updated September 11, 2025 and is based on user searches.

Tue 9/235:35 pmEWR - SOU

1 stop9h 30mAer Lingus

Fri 9/269:40 amSOU - EWR

1 stop11h 25mAer Lingus

Deal found 9/10$670

Tue 10/77:00 pmJFK - SOU

2 stops19h 30mAer Lingus

Mon 10/208:00 pmSOU - JFK

2 stops26h 15mAer Lingus

Deal found 9/9$556

Mon 10/209:35 pmJFK - SOU

1 stop16h 55mMultiple Airlines

Tue 11/48:10 pmSOU - JFK

2 stops21h 45mMultiple Airlines

Deal found 9/11$511

Mon 10/204:55 pmJFK - SOU

1 stop10h 20mAer Lingus

Tue 11/412:25 pmSOU - JFK

1 stop12h 00mAer Lingus

Deal found 9/11$552

Mon 10/206:20 pmJFK - SOU

2 stops20h 10mMultiple Airlines

Mon 11/37:55 pmSOU - JFK

2 stops29h 10mMultiple Airlines

Deal found 9/10$566

Mon 10/201:45 pmEWR - SOU

2 stops24h 45mMultiple Airlines

Tue 11/45:30 pmSOU - EWR

3 stops32h 00mMultiple Airlines

Deal found 9/10$606

Mon 10/205:35 pmEWR - SOU

1 stop9h 40mMultiple Airlines

Mon 11/37:55 pmSOU - EWR

2 stops31h 15mMultiple Airlines

Deal found 9/10$617

Sat 10/254:55 pmJFK - SOU

1 stop11h 50mAer Lingus

Sat 11/19:30 amSOU - JFK

1 stop14h 55mAer Lingus

Deal found 9/10$571

Sun 10/266:05 amLGA - SOU

3 stops33h 35mMultiple Airlines

Sun 11/28:10 pmSOU - LGA

3 stops27h 53mMultiple Airlines

Deal found 9/11$532

Sun 10/269:45 amJFK - SOU

2 stops29h 55mMultiple Airlines

Sun 11/28:10 pmSOU - JFK

2 stops24h 59mMultiple Airlines

Deal found 9/11$532

Sun 10/264:25 pmEWR - SOU

2 stops23h 15mMultiple Airlines

Sun 11/28:10 pmSOU - EWR

2 stops28h 28mMultiple Airlines

Deal found 9/11$532

Sun 10/266:45 pmEWR - SOU

1 stop10h 00mAer Lingus

Sun 11/29:30 amSOU - EWR

1 stop11h 45mAer Lingus

Deal found 9/11$627

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 September 11, 2025.

Thu 10/1612:15 amJFK - SOU

1 stop13h 40mMultiple Airlines

Deal found 9/10$210

Tue 9/306:20 pmJFK - SOU

2 stops33h 20mMultiple Airlines

Deal found 9/10$223

Wed 9/246:20 pmJFK - SOU

2 stops43h 35mMultiple Airlines

Deal found 9/9$232

Sat 9/2011:00 pmEWR - SOU

1 stop27h 35mMultiple Airlines

Deal found 9/11$254

Tue 9/304:55 pmJFK - SOU

1 stop10h 10mAer Lingus

Deal found 9/10$275

Tue 9/305:35 pmEWR - SOU

1 stop9h 30mAer Lingus

Deal found 9/10$275

Tue 9/3010:45 pmEWR - SOU

3 stops28h 55mMultiple Airlines

Deal found 9/10$280

Thu 9/1811:00 pmEWR - SOU

1 stop14h 55mMultiple Airlines

Deal found 9/11$304

Mon 9/2211:00 pmEWR - SOU

2 stops28h 05mMultiple Airlines

Deal found 9/11$308

Tue 9/235:35 pmEWR - SOU

1 stop9h 30mAer Lingus

Deal found 9/11$382

Sun 9/2111:00 pmEWR - SOU

2 stops28h 15mMultiple Airlines

Deal found 9/11$383

Mon 9/225:35 pmEWR - SOU

1 stop9h 40mAer Lingus

Deal found 9/11$388

Fly from

Route

Depart

Return

Price

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

Mon 10/20

9:35 pm-7:30 pm

1 stop16h 55m

Southampton Eastleigh

Tue 11/4

8:10 pm-12:55 pm

2 stops21h 45m

$511

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Sun 10/26

12:45 pm-7:40 pm

2 stops26h 55m

Southampton Eastleigh

Sun 11/2

8:10 pm-4:59 pm

3 stops25h 49m

$532

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

Mon 10/20

4:55 pm-8:15 am

1 stop10h 20m

Southampton Eastleigh

Tue 11/4

12:25 pm-7:25 pm

1 stop12h 00m

$552

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

Tue 10/7

7:00 pm-7:30 pm

2 stops19h 30m

Southampton Eastleigh

Mon 10/20

8:00 pm-5:15 pm

2 stops26h 15m

$556

NewarkSouthampton

EWR - SOU

EWRSOU

Newark

Mon 10/20

5:35 pm-8:15 am

1 stop9h 40m

Southampton Eastleigh

Mon 11/3

7:55 pm-10:10 pm

2 stops31h 15m

$617

NewarkSouthampton

EWR - SOU

EWRSOU

Newark

Mon 10/20

5:35 pm-7:30 pm

3 stops20h 55m

Southampton Eastleigh

Tue 11/4

3:20 pm-3:30 pm

3 stops29h 10m

$652

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

Wed 10/8

4:55 pm-8:40 am

1 stop10h 45m

Southampton Eastleigh

Sun 10/12

8:00 pm-5:15 pm

2 stops26h 15m

$730

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

Mon 10/20

4:50 pm-7:30 pm

2 stops21h 40m

Southampton Eastleigh

Tue 11/4

8:10 pm-3:38 pm

2 stops24h 28m

$746

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

Fri 10/24

6:20 pm-9:45 am

2 stops34h 25m

Southampton Eastleigh

Fri 10/31

8:10 pm-8:25 pm

1 stop28h 15m

$748

NewarkSouthampton

EWR - SOU

EWRSOU

Newark

Mon 10/20

5:35 pm-8:15 am

1 stop9h 40m

Southampton Eastleigh

Tue 11/4

8:10 pm-4:15 pm

1 stop25h 05m

$775

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 52 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 16 hours 36 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 Wednesday (167 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (151 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 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

1,385 reviews

Reviews

1 / 20

4.0

Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

KLM

7.8

Good

1,385 reviews

KLM

7.8

Good

1,385 reviews

Reviews

1 / 20

4.0

Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

Aer Lingus

7.2

Good

1,271 reviews

KLM

7.8

Good

1,385 reviews

Reviews

1 / 20

4.0

Okay

Mark,Sep 2025

AMS - BHX

Crew and snacks were good, boarding wasn't great as busses were used rather than boarding tunnels. Also endured a one hour delay.

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 $183, however they can be found for as little as $56.
Where does the fastest flight to Portsmouth depart from?
For those looking to save time traveling to Portsmouth, New York offers the quickest one-way flight (9 hours 30 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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$210+ 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.

Find cheap flights to Portsmouth with Cheapflights

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2. Select your favorite providers

3. Compare prices and book

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 September 11, 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 September 11, 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 September 11, 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 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.

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 September 11, 2025.