We all know those airplane headphones they hand out aren't fit for purpose. You need to bring your own headphones if you want to hear anything properly. But even if you're not planning to use in-flight entertainment, it's worth packing noise-cancelling headphones. They'll dramatically reduce the buzzing noise you get on planes, not to mention blocking out the travellers around you. Over-ear styles will be comfier if you're wearing them for a long time. These Sony Overhead Noise Cancelling Headphones (£32) are affordable, comfortable, and surprisingly compact, as they fold inwards to sit flat in your bag.