HK$5,748+ Cheap flights to Portsmouth

— LHR
11 Oct — 18 Oct1
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

Mon 19-1022:20 -
2 stops25h 30m
Tue 1-1217:30 -
1 stop14h 50m
Deal found 8-9HK$6,195
Mon 19-1022:20 -
2 stops25h 30m
Wed 2-1217:30 -
2 stops41h 15m
Deal found 8-9HK$6,446
Tue 20-1014:05 -
2 stops33h 45m
Wed 2-1217:30 -
2 stops17h 15m
Deal found 8-9HK$6,666
Tue 20-1022:20 -
1 stop17h 25m
Tue 1-1217:30 -
1 stop14h 50m
Deal found 8-9HK$7,160
Tue 20-1022:20 -
1 stop17h 25m
Thu 3-1208:40 -
2 stops26h 05m
Deal found 8-9HK$7,419
Tue 22-920:20 -
2 stops30h 10m
Fri 25-920:00 -
2 stops30h 00m
Deal found 7-9HK$7,552
Fri 25-907:40 -
3 stops42h 50m
Mon 28-919:20 -
3 stops41h 45m
Deal found 11-9HK$7,638
Mon 19-1022:20 -
2 stops25h 30m
Thu 3-1217:30 -
1 stop14h 50m
Deal found 8-9HK$8,093
Wed 21-1022:20 -
2 stops25h 30m
Tue 1-1208:40 -
1 stop23h 40m
Deal found 8-9HK$8,140

Find flight deals to Portsmouth

Return from

HK$5,325

One-way from

HK$5,748

Popular in

September

Cheapest in

May

Average price

HK$7,873
6-10-13-10
  • 6-10-13-10
  • 4 total stops
  • 47h 25m total
  • Hong Kong to London
Search Deals
Qatar Airways
  • Qatar Airways
  • 25-10-31-12
  • 2 total stops
  • 33h 25m total
  • Hong Kong to Portsmouth
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (HK$408 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (HK$98 potential savings vs. average return price).
Search Deals
Average for return flights in September 2026
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Cheapflights Fare Finder

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

Fly from

Route

Departure

Return

Price

Cheapest return flight

Hong KongSouthampton

HKG Hong Kong Intl - SOU Southampton Eastleigh

HKGSOU

Hong Kong Intl

Sun 25-10

18:05-19:30

2 stops33h 25m

Southampton Eastleigh

Wed 31-12

00:00-07:00

Nonstop0h 00m

HK$5,748

Hong KongSouthampton

HKG Hong Kong Intl - SOU Southampton Eastleigh

HKGSOU

Hong Kong Intl

Mon 19-10

22:20-16:50

2 stops25h 30m

Southampton Eastleigh

Tue 1-12

17:30-16:20

1 stop14h 50m

HK$6,195

Hong KongSouthampton

HKG Hong Kong Intl - SOU Southampton Eastleigh

HKGSOU

Hong Kong Intl

Tue 20-10

22:20-08:45

1 stop17h 25m

Southampton Eastleigh

Tue 1-12

17:30-16:20

1 stop14h 50m

HK$7,160

Hong KongSouthampton

HKG Hong Kong Intl - SOU Southampton Eastleigh

HKGSOU

Hong Kong Intl

Tue 20-10

22:20-08:45

1 stop17h 25m

Southampton Eastleigh

Thu 3-12

08:40-18:45

2 stops26h 05m

HK$7,419

Hong KongSouthampton

HKG Hong Kong Intl - SOU Southampton Eastleigh

HKGSOU

Hong Kong Intl

Tue 22-9

20:20-19:30

2 stops30h 10m

Southampton Eastleigh

Fri 25-9

20:00-09:00

2 stops30h 00m

HK$7,552

Hong KongSouthampton

HKG Hong Kong Intl - SOU Southampton Eastleigh

HKGSOU

Hong Kong Intl

Wed 21-10

22:20-08:35

1 stop17h 15m

Southampton Eastleigh

Thu 3-12

17:30-18:45

2 stops17h 15m

HK$8,603

Hong KongSouthampton

HKG Hong Kong Intl - SOU Southampton Eastleigh

HKGSOU

Hong Kong Intl

Fri 25-9

11:05-16:50

2 stops36h 45m

Southampton Eastleigh

Mon 28-9

17:20-15:25

1 stop15h 05m

HK$8,901

Hong KongSouthampton

HKG Hong Kong Intl - SOU Southampton Eastleigh

HKGSOU

Hong Kong Intl

Thu 25-2

00:25-19:30

2 stops27h 05m

Southampton Eastleigh

Tue 2-3

09:20-21:40

2 stops28h 20m

HK$9,246

Hong KongSouthampton

HKG Hong Kong Intl - SOU Southampton Eastleigh

HKGSOU

Hong Kong Intl

Thu 17-9

01:25-19:30

2 stops49h 05m

Southampton Eastleigh

Wed 31-12

00:00-07:00

Nonstop0h 00m

HK$43,633
Fastest return journey

Hong KongSouthampton

HKG Hong Kong Intl - SOU Southampton Eastleigh

HKGSOU

Hong Kong Intl

Sat 19-9

01:25-19:30

2 stops25h 05m

Southampton Eastleigh

Wed 31-12

00:00-07:00

Nonstop0h 00m

HK$44,056

Flights are sorted by cheapest return flights first.

Deals found on 7-9

Showing 1-10 of 11 resultsSorted by cheapest first
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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 return price

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 45 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 (6 on average).

Rainfall in Portsmouth 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

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).

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, China Southern 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$1,184, however they can be found for as little as HK$1,115.

  • 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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