Edinburgh Airport (EDI) is the busiest airport in Scotland, located 9km (almost 6 miles) west of the city centre. With trains and buses going into town at all hours, the airport is a convenient gateway to the UK's Festival City. If you’re planning on booking a flight to Edinburgh during Fringe season do it as far in advance as possible.
The original terminal was built in the 1970s, however it has been upgraded in recent years and a programme of expansion is underway. The arrivals and departure terminals are under one roof, albeit on different floors, so connecting to other flights is fairly hassle-free. However, the security check points are often over capacity at peak times.
There are several restaurants, book shops and an art gallery, and the facilities are generally clean and well-maintained. The airport is also well-signed, so you should have no trouble getting around the building.