Peak season:
Hong Kong is extremely popular in February because of the Chinese New year, so book your flights to Hong Kong as early as possible if you want to experience the magical event. Practically all year is mild or hot, making it an ideal destination for escaping the cold Winters of the UK. You'll struggle to find cheap flights to Hong Kong between October and February as this is the peak season, however with a bit of forward planning deals can be found on flight tickets.
Off season
The south-eastern city gets much hotter during the summer months, so tourists don't flock in such high numbers on flights to Hong Kong between February and September. That said, Hong Kong is the kind of place that can accurately be described as a year-round destination, so there is always a good deal on flight tickets, although February to September is when you'll find the cheapest flights to Hong Kong.
You'll find the cheapest flights to Hong Kong during the off season, although the cost of flight tickets will drastically increase if you wish to attend the Chinese New Year in February. Make sure you book two, three or even four months in advance if you can, or earlier. Flights to Hong Kong are readily available though, and even during the peak months you can find good deals on your flight tickets. Flexibility is your best friend when trying to find the cheapest flights to Hong Kong, and because the weather is nice all year round you can go pretty much anytime and have a great time.
Flights from London to Hong Kong: 11 hours 42 minutes
Flights from Manchester to Hong Kong: 11 hours 42 minutes
Flights from Birmingham to Hong Kong: 11 hours 45 minutes
Flights from Glasgow to Hong Kong: 11 hours 39 minutes
British Airways, China Eastern, Virgin Atlantic, KLM and Cathay Pacific are amongst the major airlines that operate flights to Hong Kong throughout the year, so compare a few together and weigh up which is best for you. Virgin offer high comfort and great infight entertainment, but British Airways provide complimentary snacks and drinks throughout the flight.
Hong Kong International Airport (HKG) is around 37km from the city centre, but after your long flights to Hong Kong you don't have a lot of hassle waiting after you arrive. The Airport Express is the quickest and easiest way to get from the airport to the city, it runs as frequently as every 10 minutes and takes 25 minutes or so. You can also opt for a taxi service, although these can be very expensive and you have to pay extra for each piece of luggage you wish to take with you.