Cheap Flights to San Francisco from HK$245

We've got the lowdown on how to make your flight as pain-free as possible. Follow our tips and tricks and you'll be speeding through airport security and discovering San Francisco before you know it. What to pack in your hand luggage:

• It's easy — first, pack your passport, important documents, cash and daily medications. Next, you'll want some entertainment to while away the hours. A thrilling novel and a laptop filled with your favourite movies are some terrific options. If you intend to catch a few z's, a neck pillow and some noise-cancelling headphones will also be useful. Finally, find room for a few toiletry items to ensure you arrive at your destination looking fresh and raring to go.

Do not pack the following items in your hand luggage:

• While the list of restricted items can differ between airlines, the general rule to follow is nothing flammable, sharp or explosive. This includes tools, metal cutlery, spray paint and fireworks. Sporting equipment like ice skates, and objects that could harm other people, such as firearms and ammunition, can't come on board with you either.

What to wear on a flight:

• Comfort should be your main priority when deciding what to wear on board. Loose, breathable clothing is a sensible option, as are enclosed shoes like sneakers.
• Deep vein thrombosis (DVT), a blood clotting condition caused by lengthy periods of inactivity, can be a risk on long-haul flights. Wander around the cabin and stretch your legs or do some gentle exercises in your seat to promote better circulation.

The simple answer is — be prepared. We've rounded up some tips and tricks for a speedy trip through airport security. Look out San Francisco, here you come:

• Be sure to have your passport and boarding pass easily accessible. They're the first items you'll be asked for by airport security.
• Your jacket, belt, keys and other items in your pocket, like your headphones, will need to go on a tray through the X-ray machine. Make the whole process easier by removing them as it gets closer to your turn.
• For just a few moments, you'll need to unplug from the digital world. Your phone, tablet and any other electronic devices will also need to be sent through the scanner.
• Travelling with a new perfume or cologne? Not a problem. As long as it's in a container no larger than 3.4 ounces (100 millilitres) and it's stored in a zip-close bag, you can bring it with you in your carry-on luggage.
• Lightweight sneakers are a practical footwear choice as you're less likely to be required to remove them when going through security. Hiking boots and heavier-style shoes are often subjected to extra screening.
• Take all prohibited items out of your carry-on bag. If you have any sharp objects like a pocket knife or tools, pack them in your checked luggage. They won't be allowed on board.