$521 Find Cheap Flights from Hong Kong to London – Compare and Save

These are the earliest and latest flight times available from Hong Kong to London:

• Earliest: departs at 00:15 and lands at 14:46
• Latest: departs at 23:15 and lands at 13:46.

The flight takes about 14h 31m.

Three cabin classes are available on flights from Hong Kong to London:

• Economy class
• Premium Economy Class
• Business Class

A direct flight from Hong Kong to London takes 14h 31m, covering 15,454 km.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Return flights from Hong Kong to London range from $1,059 to $1,518, with an average of $1,256 over the past 12 months. Anything below $1,059 counts as a good deal.

Last-minute fares on this route (booked within two weeks of departure) run 0% above the $1,256 route average. Book 11 weeks before departure for the lowest fares.

On this route, stopover flights are cheaper than direct options on average. Stopover fares average $826 return via Chengdu Tianfu Intl (TFU), compared with $1,461 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge $144–$144 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

Night is the busiest departure period on Hong Kong to London flights, with 50% leaving in that window. Morning departures account for 34%, Afternoon flights for 16%, and Evening flights for 0%.

Cathay Pacific is the only airline on the Hong Kong to London route offering in-flight Wi-Fi. Pricing depends on fare class.

One-way fares from Hong Kong to London are currently lower than usual. Average one-way flight prices are about $689, which is 10% below the typical average for this route.

Since London is served by multiple airports, car hire options and rates can vary depending on which one you fly into.
Near London Heathrow Airport (LHR) – daily rates from around $10:

• GREEN MOTION
• DRIVALIA
• Europcar
• Alamo
• Hertz

Near London Gatwick Airport (LGW) – daily rates from around $12:

• GREEN MOTION
• DRIVALIA
• U-Save
• Europcar
• Alamo

Near London City Airport (LCY) – daily rates from around $15:

• GREEN MOTION
• Budget
• Hertz
• Avis
• Sixt

Near London Luton Airport (LTN) – daily rates from around $16:

• GREEN MOTION
• DRIVALIA
• Alamo
• Europcar
• Budget

Near London Stansted Airport (STN) – daily rates from around $14:

• GREEN MOTION
• DRIVALIA
• Europcar
• Alamo
• U-Save

Flights from Hong Kong to London usually depart from Hong Kong Intl (HKG) and may arrive at several airports in London area, including London City (LCY), London Gatwick (LGW), London Heathrow (LHR), London Luton (LTN), London Southend (SEN) and London Stansted (STN).

Afternoon flights have the fewest delays on this route, while morning departures tend to have the most.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Hong Kong to London route, 23% of flights were delayed in the past three months, with delays averaging 1h 46m.

One-stop flights from Hong Kong to London most commonly connect through:

• Shanghai Pu Dong (PVG) – 19% of one-stop connections
• Beijing Capital (PEK) – 15% of one-stop connections
• Zurich (ZRH) – 15% of one-stop connections
• Doha Hamad Intl (DOH) – 9% of one-stop connections

Yes. Flexible dates can save you up to 13% on flights from Hong Kong to London. Wednesday is the cheapest departure day at $1,215 return on average, while Saturday is the most expensive at $1,391, a difference of $176.

KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

2 airlines operate flights between Hong Kong and London. The airlines offering direct flights on this route include:

• Cathay Pacific
• British Airways

Flying via Zurich (ZRH) gives the shortest average 1-stop total travel time of 15h 55m, compared to 15h 58m via Frankfurt am Main (FRA) and 16h 24m via Paris Charles de Gaulle (CDG).

London is 7 hours behind Hong Kong (British Time vs Hong Kong Time). Plan for the time shift when scheduling connections or first-day activities.

Hyde Park is one of the most viewed places in London on KAYAK.

Among airlines operating Hong Kong to London flights:

• Cathay Pacific: offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

Here are some options for this route, based on selected ticket types and cabin classes:

• Cathay Pacific: a cabin bag and a checked bag in Economy class
• British Airways: a cabin bag and a checked bag in Economy class

Baggage allowance can vary by ticket type, cabin class, route, and airline, so always check the fare details before booking.

The Airline offering the best Business Class experience on this route is Cathay Pacific. Their Business Flex options include flat beds, elegant dining, partitioned areas and special crew attention.

Air China is very generous with their baggage policies, allowing 32 kg per passenger. You will be charged excess baggage costs if you are overweight. If you are planning on taking more baggage, then check it in online before your flight as the airport costs are pricier.

There are four leading airlines when it comes to offsetting carbon emissions on their flights. The four airlines leading the way are British Airways, Vietnam Airlines, Finnair and Cathay Pacific. All of these airlines are reducing their carbon load by at least 52% per passenger.

If you are pregnant and travelling, you are safe to travel with medical clearance within 32 weeks of the pregnancy. If you are over 36 weeks or expecting your baby within seven days, you are not allowed to fly due to safety concerns. You also cannot fly seven days after your delivery.