Year-round direct route · 423 km
Istanbul (IST) to Kastamonu (KFS)
Nonstop service operated by Turkish Airlines. Around 1h 10m gate to gate over 423 km (263 mi).
Route facts
| Airlines | Turkish Airlines |
| Service | Year-round |
| Distance | 423 km / 263 mi |
| Est. flight time | about 1h 10m |
| Return direction | KFS to IST |
Times are estimates from distance; days of operation and schedules change. Verify with the airline before booking.