Vienna Sofia - Cheap flights

Sofia is the capital of Bulgaria, located in the western part of the country at the foot of the Vitosha Mountain. The city is situated along the Boyana River and is home to about 1.3 million people. Its history dates back to Thracian times when it was known as Serdica. Don't miss the Alexander Nevsky Cathedral and the ancient ruins of Serdica. The temperate continental climate makes spring and autumn the best times to visit, with mild and pleasant temperatures.