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HK$6,456+ 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 18-2. Fares are subject to change and may not be available on all flights or dates of travel.
— LHR
21 Feb — 28 Feb1
1 adult
1 adult, Economy, 0 bags

Flights to Portsmouth in 2026

Enter your travel dates to find the best prices.

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 22 January 2026.

Sat 7-322:55
HKG
-
SOU
2 stops50h 10m
Multiple Airlines
Sat 14-317:30
SOU
-
HKG
2 stops41h 00m
Multiple Airlines
Deal found 21-1HK$8,366
Thu 5-223:20
HKG
-
SOU
2 stops28h 00m
Multiple Airlines
Tue 10-216:05
SOU
-
HKG
3 stops29h 30m
Multiple Airlines
Deal found 21-1HK$8,834
Tue 3-217:40
HKG
-
SOU
3 stops33h 25m
Multiple Airlines
Fri 6-219:50
SOU
-
HKG
2 stops28h 30m
Multiple Airlines
Deal found 20-1HK$9,637
Wed 28-100:25
HKG
-
SOU
2 stops27h 15m
Qatar Airways
Mon 2-209:30
SOU
-
HKG
2 stops28h 10m
Qatar Airways
Deal found 21-1HK$10,596
Thu 5-222:40
HKG
-
SOU
2 stops42h 05m
KLM
Tue 10-217:35
SOU
-
HKG
1 stop14h 45m
KLM
Deal found 21-1HK$11,212

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 70,647 searches and data was last updated on 22 January 2026.

Return from

HK$4,195

One-way from

HK$6,456

Popular in

April

Cheapest in

February

Average price

HK$6,908
Hainan Airlines
  • Hainan Airlines
  • 3-3-13-3
  • 3 total stops
  • 51h 55m total
  • Hong Kong to London
Search Deals
Qatar Airways
  • Qatar Airways
  • 18-2
  • 2 total stops
  • 33h 35m total
  • Hong Kong to Portsmouth
Search Deals
Highest demand for flights based on searches. 1% potential increase in price.
Search Deals
Cheapest flight prices on average. 1% potential price decrease (HK$79 potential savings vs. average return price).
Search Deals
Average for return flights in January 2026
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 70,647 searches and data was last updated on 22 January 2026.
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

Sat 7-3

22:55-17:05

2 stops50h 10m

Southampton Eastleigh

Sat 14-3

17:30-18:30

2 stops41h 00m

HK$8,366

Hong KongSouthampton

HKG - SOU

HKGSOU

Hong Kong Intl

Thu 5-2

23:20-19:20

2 stops28h 00m

Southampton Eastleigh

Tue 10-2

16:05-05:35

3 stops29h 30m

HK$8,834

Hong KongSouthampton

HKG - SOU

HKGSOU

Hong Kong Intl

Tue 3-2

17:40-19:05

3 stops33h 25m

Southampton Eastleigh

Fri 6-2

19:50-08:20

2 stops28h 30m

HK$9,637

Hong KongSouthampton

HKG - SOU

HKGSOU

Hong Kong Intl

Thu 5-2

22:40-08:45

2 stops42h 05m

Southampton Eastleigh

Tue 10-2

17:35-16:20

1 stop14h 45m

HK$11,212

Hong KongSouthampton

HKG - SOU

HKGSOU

Hong Kong Intl

Tue 21-7

19:40-19:30

2 stops30h 50m

Southampton Eastleigh

Tue 4-8

09:10-21:55

2 stops29h 45m

HK$13,169

Hong KongSouthampton

HKG - SOU

HKGSOU

Hong Kong Intl

Wed 18-2

18:05-19:40

2 stops33h 35m

HK$6,456

Flights are sorted by cheapest return flights first.

Deals found on 21-1

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 28 hours 0 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.

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 (5 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$5,345

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 22 January 2026.
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
1,442 reviews
Check prices

Food

7.3

Comfort

7.6

Crew

8.4

Boarding

7.8

Entertainment

7.1

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,442 reviews
KLM
7.7
Good
1,442 reviews
Check prices

Food

7.3

Comfort

7.6

Crew

8.4

Boarding

7.8

Entertainment

7.1

Overall

7.7

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

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$1,756, however they can be found for as little as HK$902.

  • 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 is the closest property to London Heathrow (0.0 km away from London Heathrow).

See more FAQs

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Yes, we can. To see specific flights to Portsmouth with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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