HK$2,192+ Cheap flights to London

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 17-11. Fares are subject to change and may not be available on all flights or dates of travel.
— LON
16 Nov — 23 Nov1
1 adult
1 adult, Economy

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Cheapest flights to London
Explore the most affordable flight options available to London. Find the lowest fares based on data from user searches, with prices last updated on 17 October 2025.

Sat 25-1020:50HKG - LHR
1 stop29h 05mHainan Airlines
Fri 31-1021:00LHR - HKG
2 stops41h 45mHainan Airlines
Deal found 16-10HK$4,826
Tue 11-1120:20HKG - LGW
1 stop25h 40mChina Eastern
Sun 16-1110:30LGW - HKG
1 stop18h 10mChina Eastern
Deal found 16-10HK$4,826
Tue 4-1114:05HKG - LHR
1 stop36h 30mChina Southern
Fri 28-1121:30LHR - HKG
1 stop31h 20mChina Southern
Deal found 15-10HK$4,834
Wed 12-1120:15HKG - LTN
2 stops32h 40mMultiple Airlines
Mon 17-1107:50LTN - HKG
2 stops21h 15mMultiple Airlines
Deal found 16-10HK$4,834
Sun 19-1022:45HKG - LCY
1 stop16h 25mKLM
Thu 4-1217:05LCY - HKG
1 stop15h 15mKLM
Deal found 16-10HK$4,842
Thu 27-1108:30HKG - LHR
1 stop17h 20mAir China
Thu 27-1121:35LHR - HKG
1 stop30h 30mAir China
Deal found 17-10HK$4,857
Mon 27-1012:30HKG - LGW
1 stop26h 00mChina Eastern
Tue 6-110:30LGW - HKG
1 stop29h 45mChina Eastern
Deal found 16-10HK$4,857
Fri 24-1013:40HKG - LHR
1 stop35h 25mChina Southern
Mon 27-1021:30LHR - HKG
1 stop31h 20mChina Southern
Deal found 16-10HK$4,865
Wed 5-1113:40HKG - LGW
1 stop24h 50mChina Eastern
Tue 2-1210:30LGW - HKG
1 stop21h 50mChina Eastern
Deal found 16-10HK$4,865
Wed 3-1217:40HKG - LGW
1 stop20h 50mChina Eastern
Sun 21-1217:00LGW - HKG
1 stop18h 20mChina Eastern
Deal found 15-10HK$4,873
Thu 30-1016:10HKG - LHR
2 stops33h 25mHainan Airlines
Sun 2-1121:15LHR - HKG
1 stop33h 35mHainan Airlines
Deal found 15-10HK$4,881
Tue 4-1123:30HKG - LCY
1 stop17h 15mSWISS
Tue 25-1119:10LCY - HKG
1 stop14h 35mSWISS
Deal found 14-10HK$4,881

Flights to London in 2025

Find the latest flights to London 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 17 October 2025.

Return from

HK$4,826

One-way from

HK$2,192

Popular in

April

Cheapest in

November

Average price

HK$6,031

Good round-trip deal

HK$6,434 or less

Good one-way deal

HK$4,880 or less
Hainan Airlines
  • Hainan Airlines
  • 25-10-31-10
  • 3 total stops
  • 70h 50m total
  • Hong Kong to London
China Eastern
  • China Eastern
  • 17-11
  • 2 total stops
  • 28h 15m total
  • Hong Kong to London
Highest demand for flights based on searches. 0% potential increase in price (HK$32 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (HK$82 potential savings vs. average return price).
Average for return flights in October 2025
Price to beat on a round-trip flight from Hong Kong Intl to London.
Price to beat on a one-way flight from Hong Kong Intl to London.

Cheapflights Fare Finder

 
Locate flights to London 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 17 October 2025.
Use the filters below to find and compare flights to London that are best for you.

Fly from

Hong Kong

Route

Departure

Return

Price

Hong KongLondon

HKG - LHR

HKGLHR

Hong Kong Intl

Mon 1-12

23:25-10:45

1 stop19h 20m

London Heathrow

Mon 8-12

17:05-18:30

2 stops17h 25m

HK$4,888

Hong KongLondon

HKG - LCY

HKGLCY

Hong Kong Intl

Sun 1-2

23:30-08:35

1 stop17h 05m

London City

Tue 10-2

17:45-17:45

1 stop16h 00m

HK$4,958

Hong KongLondon

HKG - LCY

HKGLCY

Hong Kong Intl

Tue 3-2

23:30-08:45

1 stop17h 15m

London City

Tue 10-2

17:45-17:45

1 stop16h 00m

HK$4,958

Hong KongLondon

HKG - LHR

HKGLHR

Hong Kong Intl

Thu 5-3

19:35-12:05

1 stop24h 30m

London Heathrow

Sun 8-3

20:55-08:30

1 stop27h 35m

HK$5,020

Hong KongLondon

HKG - LHR

HKGLHR

Hong Kong Intl

Tue 3-2

23:30-08:05

1 stop16h 35m

London Heathrow

Tue 10-2

14:25-17:45

2 stops19h 20m

HK$5,028

Hong KongLondon

HKG - LCY

HKGLCY

Hong Kong Intl

Mon 1-12

23:25-08:10

1 stop16h 45m

London City

Mon 8-12

17:05-18:30

2 stops17h 25m

HK$5,106

Hong KongLondon

HKG - LGW

HKGLGW

Hong Kong Intl

Fri 13-3

23:30-17:50

1 stop26h 20m

London Gatwick

Tue 17-3

18:40-17:45

1 stop15h 05m

HK$5,129

Hong KongLondon

HKG - LTN

HKGLTN

Hong Kong Intl

Sat 15-11

12:55-14:00

3 stops33h 05m

London Luton

Sat 22-11

06:00-17:35

2 stops27h 35m

HK$5,176

Hong KongLondon

HKG - LTN

HKGLTN

Hong Kong Intl

Fri 14-11

08:30-20:55

2 stops20h 25m

London Luton

Fri 21-11

09:15-19:00

2 stops25h 45m

HK$5,199

Hong KongLondon

HKG - LHR

HKGLHR

Hong Kong Intl

Thu 25-12

21:45-20:40

1 stop30h 55m

London Heathrow

Sat 10-1

07:30-19:05

1 stop27h 35m

HK$5,292

Flights are sorted by cheapest return flights first.

Deals found on 15-10

Showing 1-10 of 60 results
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Best time to book a flight to London

Have a flexible travel schedule? Discover the best time to fly to London 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 London

When is the best time to book a flight to London?

Use this chart to determine the optimal time to book a return flight from Hong Kong to London. Price data was last updated on 10 October 2025.

The best time to book flights to London is 70 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

How long is the flight to London?

On average, a flight from Hong Kong to London takes 17 hours 45 minutes. Flights to London 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 London?

Use this chart to determine the cheapest time to fly return from Hong Kong to London. Price data was last updated on 18 November 2024.

Users looking for the lowest fares to London 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 London

The most flights from Hong Kong to London 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 cheapest airlines that fly to London?

The cheapest airlines flying from Hong Kong to London are SWISS, Lufthansa and China Southern.

Rainfall in London by month

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

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 mm per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

Temperature in London by month

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

If weather is an important factor for your trip to London, 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 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 17 October 2025.
Read through reviews of airlines serving the United Kingdom, such as Cathay Pacific, SWISS, andChina Eastern. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

7.6

Comfort

7.6

Crew

8.1

Entertainment

7.8

Boarding

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Mei Lin,Sept 2025

HKG - LHR

Overall, it was good. The flight was smooth, and the service was good. Unfortunately, the food was mediocre. The toilet could have been in a better condition throughout the flight.

Overall

7.6

Comfort

7.6

Crew

8.1

Entertainment

7.8

Boarding

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Mei Lin,Sept 2025

HKG - LHR

Overall, it was good. The flight was smooth, and the service was good. Unfortunately, the food was mediocre. The toilet could have been in a better condition throughout the flight.

Overall

7.6

Comfort

7.6

Crew

8.1

Entertainment

7.8

Boarding

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Mei Lin,Sept 2025

HKG - LHR

Overall, it was good. The flight was smooth, and the service was good. Unfortunately, the food was mediocre. The toilet could have been in a better condition throughout the flight.

Overall

7.6

Comfort

7.6

Crew

8.1

Entertainment

7.8

Boarding

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Mei Lin,Sept 2025

HKG - LHR

Overall, it was good. The flight was smooth, and the service was good. Unfortunately, the food was mediocre. The toilet could have been in a better condition throughout the flight.

Overall

7.6

Comfort

7.6

Crew

8.1

Entertainment

7.8

Boarding

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Mei Lin,Sept 2025

HKG - LHR

Overall, it was good. The flight was smooth, and the service was good. Unfortunately, the food was mediocre. The toilet could have been in a better condition throughout the flight.

Overall

7.6

Comfort

7.6

Crew

8.1

Entertainment

7.8

Boarding

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Mei Lin,Sept 2025

HKG - LHR

Overall, it was good. The flight was smooth, and the service was good. Unfortunately, the food was mediocre. The toilet could have been in a better condition throughout the flight.

FAQs about flying to London

London climate

July and August are usually the warmest months, however, the Great British summer has a reputation for being a washout. January is the coolest month with temperatures in the low single digits (Celsius). Spring and autumn can be very pleasant, as the temperatures are usually higher than the rest of the UK. The rain is heaviest during November when the city averages 6cm (2.5 inches). 

Getting around London

There are tons of options, the best being the Tube. London’s underground system is the fastest and easiest way to get around. Avoid rush hour though unless you like the sardine-in-a-can crush.

London’s iconic double-decker red buses are slower, but they can be found everywhere and won’t be as crowded. Look into getting an Oyster card or Travelcard for travelling on London’s public transport – it will save you money. You can find them at tube stops or newsagents.

Black cabs are everywhere and very comfortable, but very expensive. Minicabs are a cheaper taxi option, but you have to order them ahead of time. Watch out for illegal minicabs that trawl the theatres and nightspots. They might seem like the only late-night option, but single women or those unfamiliar with the area should and find a different way to stay safe.

London is a big city, but many of the tourist attractions are within walking distance or along the River Thames. Take advantage of a sunny day by walking or taking a riverboat.

Driving is not recommended, as parking is near impossible to find and a Congestion Charge will cost you extra when driving into the city’s centre Monday to Friday between 7am and 6pm. Rent a car only if you’d like to head out into the country. You will need to be over 25 and have a licence and a credit card.

What is good to know if travelling to London?

  • Major museums and art galleries are free to visit. These include the world-renowned British Museum, Natural History and Science Museums, Victoria and Albert Museum, Imperial War Museum and National Maritime Museum. There are also smaller, quirkier museums such as The Geffrye Museum, restored 18th-century almshouses with a number of period rooms from 1600 to the present day.
  • The Changing of the Guard at Buckingham Palace is when the new guard exchanges duty with the old guard. It’s a fantastic sight.
  • Hoxton is one of the coolest places in London. It was once the centre of the rag trade. Now, its large factory spaces have been transformed in to uber-cool galleries and artists’ studios.
  • The best place to get a curry is Brick Lane in East London. Jellied eels are not as popular as they once were but if you’d like to try them, the best place, bar none, is M Manze Pie and Eel Shop, the oldest pie-and-mash shop in London.
  • The London Eye, situated on the South Bank of the Thames, offers great views of London. Another vantage point is the gallery of the Monument to the Great Fire of London in the City of London. It was built between 1671 and 1677; its 311 steps leading to an observation deck beneath the shining gold “flame”.
  • When is the best time to fly to London?

    Peak season: Most visitors arrive on flights to London between June and September. Christmas and Easter are other peak times. School holidays – half-term weeks in October, February and May – are very busy. Families flock to the museums and attractions. Shoulder season: Shoulder season is from April to May (excluding Easter) and early September to October. September/October is a great time of year to get cheaper flights and it can be the best time to visit: fewer crowds, cheaper hotel rooms, and better light for photography and bringing out the scenery. Off season: As London is a four-season destination there’s not much of an off-season. The weeks following Christmas and New Year until Easter are fairly quiet.

  • Can I find cheaper flights to London 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 London on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to London?

    Based on reviews from Cheapflights users, SWISS is rated the highest out of the airlines that fly to London.

  • What is the cheapest airport to fly to in London?

    London Luton is currently the cheapest airport to fly to in London. One-way flights to London Luton typically cost HK$150, while return flights cost around HK$53.

  • How much is a return flight to London?

    A return flight to London will typically cost around HK$138, however they can be found for as little as HK$130.

  • Where does the fastest flight to London depart from?

    For those looking to save time traveling to London, Hong Kong Intl offers the quickest one-way flight (14 hours 0 minutes).

  • 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

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Kingston upon Thames
Slough
Buckingham
Gatwick
Richmond
Wembley
Hatfield
Guildford
Maidstone
Enfield
Luton
Croydon
Hounslow
Newmarket
Southall

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