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

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.

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.

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

• Cathay Pacific
• British Airways

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).

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

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

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

• Economy class
• Business Class

On this route, stopover flights are cheaper than direct options on average. Stopover fares average S$ 725 return via Chengdu Tianfu Intl (TFU), compared with S$ 1,283 for direct.

There is no standard. Checked bag policies vary by airline on this route. Most carriers charge S$ 126–S$ 126 for the first checked bag in Economy. Premium fares and elite status bookings typically include a free checked bag.

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

Shanghai Pu Dong (PVG) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 13% on the Hong Kong to London route. Wednesday is the cheapest departure day at S$ 1,068 return on average, while Saturday is the most expensive at S$ 1,222, a difference of S$ 154. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

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 3 months, with delays averaging 1 hour 53 minutes.

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%.

Some of the most popular sights in London are Paddington Station, St Pancras Railway Station, and Central London. These are among the most viewed places in London on KAYAK.

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

• Earliest: departs at 00:25 and lands at 14:49
• Latest: departs at 23:55 and lands at 14:19.

The flight takes about 14h 24m.

Last-minute fares on this route (booked within 2 weeks of departure) run 0% above the route average of S$ 1,104. Book 11 weeks before departure for the lowest fares.

A direct flight from Hong Kong to London takes 14h 24m, 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.

Afternoon flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

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.

Since London is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
Near London Heathrow Airport (LHR) – daily rates from around S$ 9:

· GREEN MOTION
· DRIVALIA
· Europcar
· Alamo
· Hertz

Near London Gatwick Airport (LGW) – daily rates from around S$ 11:

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

Near London City Airport (LCY) – daily rates from around S$ 13:

· GREEN MOTION
· Budget
· Hertz
· Avis
· Sixt

Near London Luton Airport (LTN) – daily rates from around S$ 14:

· GREEN MOTION
· DRIVALIA
· Alamo
· Europcar
· Budget

Near London Stansted Airport (STN) – daily rates from around S$ 12:

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

Return flights from Hong Kong to London range from S$ 930 to S$ 1,333, with an average of S$ 1,104 over the past 12 months. Anything below S$ 930 counts as a good deal.