There are direct flights to Scottish airports from Britain, lots of European countries, the Middle East, the US and Canada. From elsewhere, you'll probably have to fly into a European or Middle Eastern hub and get a connecting flight to a Scottish airport – London has the most connections. This will often be a cheaper option anyway if flying in from North America.
Scotland has four main international airports: Aberdeen, Edinburgh, Glasgow and Glasgow Prestwick, with a few short-haul international flights landing at Inverness. London is the main UK gateway for long-haul flights. Sumburgh on Shetland has summer service from Norway.
Aberdeen Airport Located at Dyce, 6 miles northwest of the city centre. There are regular flights to numerous Scottish and UK destinations, including Orkney and Shetland, and international flights to several European countries.
Edinburgh Airport Eight miles west of the city, this airport has numerous flights to other parts of Scotland and the UK, Ireland and mainland Europe, as well as long-haul flights to the US, Canada, the UAE and Qatar.
Glasgow Airport Glasgow's principal airport offers connections all over Scotland, Britain and Europe. Long-haul destinations include the US, Canada and Dubai.
Glasgow Prestwick Airport Southwest of Glasgow near Ayr, this airport is a Ryanair hub serving mainly holiday destinations in southern Europe.
Inverness Airport At Dalcross, east of the city, this airport has direct flights to several British and western-European destinations.
London Gatwick (www.gatwickairport.com) London's second airport, with numerous flights to Scotland.
London Heathrow (www.heathrow.com) Britain's principal international airport.
An Air Passenger Duty, essentially a departure tax, is payable for air travel originating in the UK. It's included in the ticket price. If you have to cancel a flight, you can reclaim it even if the rest of the ticket is nonrefundable.