Sit on the Right side of the plane for the best views on flights from Budapest to Sofia. Right side dominates both segments—Budapest's Danube and hills on departure, then the Carpathians and Rila Mountains during cruise and descent. Left side has merit only during final approach to Sofia.

During takeoff from Ferihegy (BUD), sit on the Right side for the best views. Right side captures the Danube River as it curves through Budapest's districts, plus the Southern Plain extending southward toward the Carpathian foothills. Left side faces northwest toward flatter terrain with less visual interest. Notable sights include: Danube River (multiple bends through Budapest), Margaret Island, Buda Hills (western bank), Southern Plain extending to horizon.

When landing at Sofia (SOF), sit on the Left side for the best views. Left side offers views of the Rila Mountains and Vitosha Mountain as you descend toward Sofia, plus the Sofia Basin's urban layout. Right side faces toward less distinctive terrain to the east. Notable sights include: Vitosha Mountain (dominant peak south of Sofia), Rila Mountains (southwestern range), Sofia Basin urban grid, Iskar River valley.

The flight from Ferihegy (BUD) to Sofia (SOF) takes Approximately 1 hour 15 minutes.

The flight path crosses the Southern Plain and approaches the Carpathian Mountains' southern foothills. Around the midpoint (roughly over central Serbia/northern Bulgaria border region), you'll see the transition from flat Hungarian plains to increasingly hilly terrain. The Carpathian range's southern edge becomes visible as a distant ridge. As you approach Sofia, the Rila and Pirin Mountains become prominent on the left, while Vitosha Mountain dominates the approach to Sofia's basin.