London Gatwick is Brighton’s closest international airport. It’s about 25 mins away from Brighton and is easily accessible by road and rail (the airport lies just off the Brighton to London motorway & the airport’s train station is on the main Brighton to London line). London Heathrow is also reasonably close (45 mins – 1 hour away by car) but a bit more of a pain to get to via train as you need to travel into and across central london.