Flights to Salzburg can be boarded at London Heathrow Airport, with British Airways, Airberlin and Germanwings operating on this route, among other providers. The first flight of the day departs at around 6:00 a.m., with the final flight leaving at roughly 10:30 p.m. Most flights across this route require a stopover with the most frequent destinations being Berlin and Dusseldorf International Airports. A direct flight between London and Salzburg takes about 2 hours over a distance of approximately 1,300 kilometres. On arrival you will land at Salzburg International Airport, located approximately 3 kilometres from the city centre. Most visitors complete their journey into Salzburg via taxi or hire car, however a shuttle bus operates every 10 minutes, connecting the airport with the city's other major transport links.
Salzburg is famous as the birth place of Mozart and renowned for its large student population and world class universities. One of the largest cities in Austria, Salzburg attracts a wide range of tourists every year and continues to enchant many who visit. The city's Old Town is a UNESCO World Heritage Site and home to some of the most spectacular Baroque architecture in the world. Perhaps the most famous structure here is Salzburg Cathedral, located in the heart of the Old Town. Completed in 1628 the Cathedral has been perfectly maintained and is still home to the Baptismal font of Mozart himself. If you prefer more contemporary attractions pay a visit to Red Bull's Hangar-7. With a Michelin starred restaurant and an expansive collection of historical planes, racing cars and helicopters it's the perfect place for car enthusiasts.
Here are some other resources that might have the information you need