Istanbul ▸ Constanţa
Constanţa ▸ Istanbul ⇄1 a dayfastest 10h10☾ 1 overnight busFlixBus🇹🇷 Türkiye → 🇷🇴 Romania
Direct buses · no change
IstanbulConstanţa· 353 km as the crow flies
- 19:00 → 04:10+1FlixBus 1998 ☾ Overnightİstanbul Esenler bus station → Constanța (Autogara Sud Herli-Sof)10h10nonstopRuns: DailyThe night the clocks change (Sun 18 Oct: 19:00 → 05:10+1; Mon 19 Oct: 19:00 → 05:10+1; Tue 20 Oct: 19:00 → 05:10+1; Wed 21 Oct: 19:00 → 05:10+1; Thu 22 Oct: 19:00 → 05:10+1; Fri 23 Oct: 19:00 → 05:10+1)Book on FlixBus ↗
Local times at each stop. Times from official open data: FlixBus (file of 11 Oct 2026) and FlixBus Türkiye (file of 11 Oct 2026). Checked Sun 18 Oct 2026; they cover 18 Oct to 14 Nov 2026. Timetables change, so check with the operator before you travel. Contains FlixBus timetable data (FlixMobility, transport.data.gouv.fr), ODbL 1.0. How we build this.
Quick answers
Is there a direct bus from Istanbul to Constanţa?
Yes. 1 a day on average, with FlixBus, no change of bus (18 Oct to 14 Nov 2026).
How long is the bus from Istanbul to Constanţa?
The fastest takes 10h10; the slowest 10h10, for 353 km as the crow flies.
Is there a night bus from Istanbul to Constanţa?
Yes: 1 overnight departure in the timetable, for example 19:00 arriving 04:10 the next morning.