Chennai to Kolkata traces India's eastern seaboard — 1,660 km through Andhra and Odisha. The flight takes 2.5 hours. The train? Over a full day.
Comparison
Verdict
- ✈️ Fly: 24+ hours saved. Book 2-3 weeks early for ₹3,500
- 🚂 Coromandel Express: India's fastest long-distance train on this route — still 27 hours