5 Cheapest Cities to Visit in Europe

2. Sofia, Bulgaria

Round-trip Cost for One Adult Traveler: $663

With a round-trip costing $663 for one adult traveler as of 2024, Sofia ranks second on our list. It is the capital of the Balkan nation of Bulgaria and is located in the west of the country. The city is renowned for the remnants of Greek, Ottoman, Roman, and Soviet occupation that dot its skyline. Peter Pan Guest House offers the most affordable three-star accommodation in Sofia with a rating of 7.4/10.