Travel Time from Bucharest to Transylvania, Romania

You do not "travel from Bucharest to Transylvania" as if they are separate places. Both are in Romania.

• Bucharest is the capital city, located in the southern region of Muntenia (Wallachia).
• Transylvania is a historical region in central/northwestern Romania, bounded by the Carpathian Mountains.

Travel Between Them

To reach Transylvanian cities from Bucharest:

• Brașov: ~170 km (105 mi) — 2.5–3 hours by car/train.
• Sibiu: ~280 km (174 mi) — 4–4.5 hours by car; ~5.5 hours by train.
• Cluj-Napoca: ~450 km (280 mi) — 6–7 hours by car; ~8–9 hours by train; 1h 15m flight.
• Sighișoara: ~300 km (186 mi) — 4.5 hours by car.

Transylvania begins roughly at the Carpathian passes (e.g., Predeal, Rucăr-Bran), about 1.5–2 hours north of Bucharest by car.