Cheap flights from Hong Kong to London from $365

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Hong Kong to London departing on 9/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Hong Kong to London (HKG-LON)

Cheap round-trip flights

 Logo
11:45 pm - 8:45 amHKG-LHR
17h 00m1 stop
 Logo
5:10 pm - 5:45 pmLHR-HKG
16h 35m1 stop
Sat, Jan 17 - Thu, Feb 5
China Eastern Logo
1:55 pm - 6:30 amHKG-LGW
23h 35m1 stop
China Eastern Logo
10:30 am - 7:20 pmLGW-HKG
24h 50m1 stop
$689China Eastern
Find Deal
Wed, Oct 15 - Fri, Nov 21
 Logo
3:30 pm - 10:20 pmHKG-LGW
37h 50m2 stops
 Logo
11:35 am - 11:50 amLGW-HKG
17h 15m1 stop
Tue, Sep 16 - Sun, Sep 21
SWISS Logo
11:15 pm - 4:35 pmHKG-LHR
24h 20m2 stops
SWISS Logo
2:25 pm - 5:45 pmLHR-HKG
19h 20m2 stops
$694SWISS
Find Deal
Sun, Oct 12 - Sat, Nov 29
SWISS Logo
11:15 pm - 1:40 pmHKG-LHR
21h 25m2 stops
SWISS Logo
2:25 pm - 5:45 pmLHR-HKG
19h 20m2 stops
$695SWISS
Find Deal
Tue, Oct 14 - Thu, Nov 6
Finnair Logo
8:55 pm - 8:40 pmHKG-LHR
30h 45m1 stop
Finnair Logo
7:30 am - 7:05 pmLHR-HKG
27h 35m1 stop
$701Finnair
Find Deal
Wed, Sep 10 - Fri, Oct 31
British Airways Logo
11:00 pm - 6:30 amHKG-LHR
14h 30mnonstop
British Airways Logo
5:55 pm - 2:50 pmLHR-HKG
12h 55mnonstop
$738British Airways
Find Deal
Tue, Oct 14 - Mon, Oct 27
British Airways Logo
10:45 pm - 5:35 amHKG-LHR
14h 50mnonstop
British Airways Logo
5:55 pm - 2:50 pmLHR-HKG
12h 55mnonstop
$739British Airways
Find Deal
Thu, Nov 6 - Sun, Nov 23
Air China Logo
10:30 am - 8:30 pmHKG-LHR
17h 00m1 stop
Air China Logo
8:25 pm - 7:00 pmLHR-HKG
15h 35m1 stop
$758Air China
Find Deal
Tue, Sep 16 - Sun, Sep 21
Air China Logo
3:25 pm - 5:35 amHKG-LGW
22h 10m2 stops
Air China Logo
11:40 am - 6:10 pmLGW-HKG
22h 30m2 stops
$790Air China
Find Deal
Thu, Dec 25 - Sun, Jan 4

SWISS flights from Hong Kong to London

Our best SWISS deals on Hong Kong to London flight tickets
SWISS
Oct 12
HKG11:15 pmHong Kong Intl
24h 20m
2 stops
LHR4:35 pmLondon Heathrow
Nov 29
LHR2:25 pmLondon Heathrow
19h 20m
2 stops
HKG5:45 pmHong Kong Intl
SWISS
Oct 14
HKG11:15 pmHong Kong Intl
21h 25m
2 stops
LHR1:40 pmLondon Heathrow
Nov 6
LHR2:25 pmLondon Heathrow
19h 20m
2 stops
HKG5:45 pmHong Kong Intl
SWISS
Nov 4
HKG11:30 pmHong Kong Intl
25h 10m
2 stops
LHR4:40 pmLondon Heathrow
Nov 18
LHR2:25 pmLondon Heathrow
19h 20m
2 stops
HKG5:45 pmHong Kong Intl

Finnair flights from Hong Kong to London

Our best Finnair deals on Hong Kong to London flight tickets
Finnair
Sep 10
HKG8:55 pmHong Kong Intl
30h 45m
1 stop
LHR8:40 pmLondon Heathrow
Oct 31
LHR7:30 amLondon Heathrow
27h 35m
1 stop
HKG7:05 pmHong Kong Intl
Finnair
Sep 10
HKG8:55 pmHong Kong Intl
25h 15m
1 stop
LHR3:10 pmLondon Heathrow
Sep 19
LHR7:30 amLondon Heathrow
27h 10m
1 stop
HKG5:40 pmHong Kong Intl
Finnair
Sep 10
HKG8:55 pmHong Kong Intl
30h 45m
1 stop
LHR8:40 pmLondon Heathrow
Oct 31
LHR7:30 amLondon Heathrow
27h 35m
1 stop
HKG7:05 pmHong Kong Intl

momondo Fare Finder

 
Customize your flight search to find flights from Hong Kong to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 28, 2025.
Use the filters below to find and compare flights from Hong Kong to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Hong KongLondon

HKG - LHR

HKGLHR

Hong Kong Intl

Sat 1/17

11:45 pm-8:45 am

1 stop17h 00m

London Heathrow

Thu 2/5

5:10 pm-5:45 pm

1 stop16h 35m

$685

Hong KongLondon

HKG - LGW

HKGLGW

Hong Kong Intl

Wed 10/15

1:55 pm-6:30 am

1 stop23h 35m

London Gatwick

Fri 11/21

10:30 am-7:20 pm

1 stop24h 50m

$689

Hong KongLondon

HKG - LGW

HKGLGW

Hong Kong Intl

Tue 9/16

3:30 pm-10:20 pm

2 stops37h 50m

London Gatwick

Sun 9/21

11:35 am-11:50 am

1 stop17h 15m

$690

Hong KongLondon

HKG - LHR

HKGLHR

Hong Kong Intl

Sun 10/12

11:15 pm-4:35 pm

2 stops24h 20m

London Heathrow

Sat 11/29

2:25 pm-5:45 pm

2 stops19h 20m

$694

Hong KongLondon

HKG - LHR

HKGLHR

Hong Kong Intl

Tue 10/14

11:15 pm-1:40 pm

2 stops21h 25m

London Heathrow

Thu 11/6

2:25 pm-5:45 pm

2 stops19h 20m

$695

Hong KongLondon

HKG - LHR

HKGLHR

Hong Kong Intl

Wed 9/10

8:55 pm-8:40 pm

1 stop30h 45m

London Heathrow

Fri 10/31

7:30 am-7:05 pm

1 stop27h 35m

$701

Hong KongLondon

HKG - LHR

HKGLHR

Hong Kong Intl

Tue 10/14

11:00 pm-6:30 am

Nonstop14h 30m

London Heathrow

Mon 10/27

5:55 pm-2:50 pm

Nonstop12h 55m

$738

Hong KongLondon

HKG - LHR

HKGLHR

Hong Kong Intl

Thu 11/6

10:45 pm-5:35 am

Nonstop14h 50m

London Heathrow

Sun 11/23

5:55 pm-2:50 pm

Nonstop12h 55m

$739

Hong KongLondon

HKG - LHR

HKGLHR

Hong Kong Intl

Tue 9/16

10:30 am-8:30 pm

1 stop17h 00m

London Heathrow

Sun 9/21

8:25 pm-7:00 pm

1 stop15h 35m

$758

Hong KongLondon

HKG - LGW

HKGLGW

Hong Kong Intl

Thu 12/25

3:25 pm-5:35 am

2 stops22h 10m

London Gatwick

Sun 1/4

11:40 am-6:10 pm

2 stops22h 30m

$790

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Hong Kong to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Hong Kong and London?

What is the cheapest month to fly to London?

The cheapest month to fly to London from Hong Kong is in November. Flight prices, which tend to average around $594, are often lower during this time because this is during the off-season. The month of December is another great option to travel to London, with average flight prices from Hong Kong averaging around $645.

What is the cheapest day to depart on your flight to London?

The cheapest day to depart from Hong Kong to London is on a Friday. Travelers who choose to depart for London on a Friday will often find tickets for as low as $962. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,016. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

What is the cheapest time of day to depart on your flight to London?

Flying to London from Hong Kong in the evening is the least expensive time of day to depart. momondo users have found prices as low as $969 when looking at flights departing in the evening. Flights to London are more costly at noon, with an average ticket price of $1,036. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Hong Kong Intl to London flight route?

Fly from Hong Kong Intl to London Heathrow for the best Hong Kong Intl - London flight prices

How far in advance should I book a flight to London?

You are more likely to see cheaper flights to London from Hong Kong when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $852 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Hong Kong for as low as $828 on momondo.

What cabin class options are available on Hong Kong Intl to London flights?

There are 3 cabin classes available to choose from on Hong Kong Intl to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Hong Kong to London flights?

You could potentially save up to 29% on your flight if you consider stops on a Hong Kong to London flight.

How have Hong Kong to London flight prices changed over time?

As of August 2025, prices for Hong Kong to London flights are approximately 31% cheaper when compared to flights at the same time last year.

When to book flights from Hong Kong to London

Are you open to changing your travel dates? Check out the ideal times to fly from Hong Kong to London according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Hong Kong to London (HKG to LON) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Hong Kong to London

Best Price Found

$707

Fastest flight time

14h 00m

Direct flights

Every day

Airports in London

1 airport
The best one-way flight to London from Hong Kong in the past 72 hours is $707. The best round-trip flight deal from Hong Kong to London found on momondo in the last 72 hours is $796.
The fastest flight from Hong Kong to London takes 14h 00m
Direct flights go from Hong Kong to London every day.
There is 1 airport near London: London Heathrow (LHR)
  • How far is Hong Kong Intl to London by plane?

    The straight-line distance from Hong Kong Intl to London is 5975.1 mi. Flights usually cover this in 14h 30m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Hong Kong Intl Airport to London?

    Prices for flights from Hong Kong Intl Airport to London were last updated today.

  • How many operators does momondo search for flights from Hong Kong Intl Airport to London?

  • How old do you have to be to fly from Hong Kong Intl Airport to London?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Hong Kong Intl Airport to London.

  • What documentation or ID do you need to fly to London?

    The necessary travel and health documents for your London trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Hong Kong to London?

  • What is the most popular airline from Hong Kong to London?

Best airlines flying from Hong Kong to London

Compare and see reviews for airlines that fly from Hong Kong to London with momondo
Airline
Rating
Free Cancellation
Price
SWISSPriceFrom $300Free CancellationRating
7.6
1,712 reviews
Search SWISS flights
China EasternPriceFrom $467Free CancellationRating
7.2
164 reviews
Search China Eastern flights
Air ChinaPriceFrom $471Free CancellationRating
7.3
95 reviews
Search Air China flights
China SouthernPriceFrom $479Free CancellationRating
7.5
109 reviews
Search China Southern flights
LufthansaPriceFrom $485Free CancellationRating
6.8
7,368 reviews
Search Lufthansa flights
FinnairPriceFrom $534Free CancellationRating
7.6
1,321 reviews
Search Finnair flights
Thai AirwaysPriceFrom $633Free CancellationRating
7.8
345 reviews
Search Thai Airways flights
British AirwaysPriceFrom $713Free CancellationRating
6.7
7,316 reviews
Search British Airways flights
Cathay PacificPriceFrom $788Free CancellationRating
7.6
977 reviews
Search Cathay Pacific flights
  • Cathay Pacific Flights From Hong Kong to London

    The lowest priced Cathay Pacific flight from Hong Kong to London from the last 72 hours was $788. Generally, Cathay Pacific has 33 flights on this route every week with an average price of $1,039. Cathay Pacific is rated 7.6/10 by our users.

  • British Airways Flights From Hong Kong to London

    British Airways (6.7/10 from 7,316 reviews) operates around 7 flights from Hong Kong to London in any given week. The average British Airways airfare for this route is around $916, with deals from around $713 rare but found on momondo. Referenced prices are for round-trip Hong Kong to London flight searches in the last 72 hours.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Hounslow
Gatwick
Luton
Dover
Slough
Milton Keynes
Guildford
Dartford
Crawley
Stansted
Hayes
Chelmsford
Brentwood
Ilford
Folkestone
Colchester
Watford
Canterbury
Richmond
Wembley

Why use momondo?

Why should I use momondo to find a flight deal from Hong Kong to London?

It is quick and easy to find Hong Kong to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

Can I find flights from Hong Kong to London with flexible booking policies on momondo?

Flights from Hong Kong to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Hong Kong to London?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from Hong Kong.

I’m not ready to book a flight from Hong Kong to London right now. Can momondo alert me if prices change?

Price alerts on flights to London from Hong Kong are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your London trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 9/2
Tue 9/9

Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London