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HK$9,006+ Cheap flights to Portsmouth

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29-3. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

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 70,647 searches and data was last updated on 30 October 2025.

Return from

HK$4,584

Popular in

April

Cheapest in

November

Average price

HK$6,037
SWISS
  • SWISS
  • 25-11-2-12
  • 2 total stops
  • 31h 50m total
  • Hong Kong to London
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (HK$38 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (HK$83 potential savings vs. average return price).
Search Deals
Average for return flights in October 2025
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Find flight deals to Portsmouth

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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 30 October 2025.

Tue 11-1100:25HKG - SOU
2 stops27h 15mQatar Airways
Wed 19-1120:10SOU - HKG
2 stops41h 30mQatar Airways
Deal found 29-10HK$9,938
Sun 16-1118:05HKG - SOU
2 stops33h 35mQatar Airways
Wed 26-1120:10SOU - HKG
2 stops41h 30mQatar Airways
Deal found 30-10HK$12,541

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 70,647 searches and data was last updated on 30 October 2025.
Use the filters below to find and compare flights to Portsmouth that are best for you.

Fly from

Hong Kong

Route

Departure

Return

Price

Hong KongSouthampton

HKG - SOU

HKGSOU

Hong Kong Intl

Sun 29-3

01:25-19:30

2 stops25h 05m

Southampton Eastleigh

Tue 7-4

09:10-21:55

2 stops29h 45m

HK$9,006

Hong KongSouthampton

HKG - SOU

HKGSOU

Hong Kong Intl

Tue 11-11

00:25-19:40

2 stops27h 15m

Southampton Eastleigh

Wed 19-11

20:10-21:40

2 stops41h 30m

HK$9,938

Hong KongSouthampton

HKG - SOU

HKGSOU

Hong Kong Intl

Sun 15-3

18:05-19:40

2 stops33h 35m

Southampton Eastleigh

Wed 18-3

12:25-14:50

2 stops42h 25m

HK$10,194

Hong KongSouthampton

HKG - SOU

HKGSOU

Hong Kong Intl

Sat 14-3

22:40-17:15

2 stops26h 35m

Southampton Eastleigh

Wed 18-3

17:30-18:30

2 stops41h 00m

HK$10,474

Hong KongSouthampton

HKG - SOU

HKGSOU

Hong Kong Intl

Fri 13-3

00:25-19:40

2 stops51h 15m

Southampton Eastleigh

Wed 18-3

12:25-14:50

2 stops42h 25m

HK$11,181

Hong KongSouthampton

HKG - SOU

HKGSOU

Hong Kong Intl

Sat 15-11

00:25-19:40

2 stops51h 15m

Southampton Eastleigh

Wed 26-11

20:10-21:40

2 stops41h 30m

HK$12,557

Hong KongSouthampton

HKG - SOU

HKGSOU

Hong Kong Intl

Sun 15-3

23:25-08:20

1 stop16h 55m

Southampton Eastleigh

Wed 18-3

17:30-18:30

2 stops41h 00m

HK$15,742

Flights are sorted by cheapest return flights first.

Deals found on 30-10

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 return 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 Hong Kong to Portsmouth takes 33 hours 35 minutes. Flights to Portsmouth from other popular cities in Hong Kong 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 return from Hong Kong to Portsmouth. Price data was last updated on 18 November 2024.

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

Weekly flight availability to Portsmouth

The most flights from Hong Kong to Portsmouth are scheduled on a Tuesday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 on average).

What are the most popular airlines that fly to Portsmouth?

The most popular airline flying from Hong Kong to Portsmouth is KLM.

KLM
KLM
From HK$5,254

What are the cheapest airlines that fly to Portsmouth?

The cheapest airline flying from Hong Kong to Portsmouth is KLM.

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 25.0 - 76.0 mm per month. December is typically the wettest month, when rainfall can reach 76.0 mm. July is typically the driest time to visit Portsmouth when rainfall is around 25.0 mm.

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 18.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 4.0 C).

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 30 October 2025.
See what other customers who have flown with KLM to the United Kingdom have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,406 reviews
Check prices

Comfort

7.7

Food

7.3

Crew

8.4

Overall

7.7

Entertainment

7.1

Boarding

7.8

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
Check prices

Comfort

7.7

Food

7.3

Crew

8.4

Overall

7.7

Entertainment

7.1

Boarding

7.8

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 stopovers?

    Yes, flights with stopovers 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, SWISS is rated the highest out of the airlines that fly to Portsmouth.

  • How much is a return flight to Portsmouth?

    A return flight to Portsmouth will typically cost around HK$1,769, however they can be found for as little as HK$1,039.

  • Does London Heathrow have rental cars?

    Yes. Those touching down at London Heathrow can take advantage of the car hire 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 km away from London Heathrow).

See more FAQs

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