Comparison

Chennai to Delhi — 2,200 km. India's N-S Marathon Route.

Updated June 25, 2026 | 3 min read

Chennai to Delhi is India's longest practical north-south route — 2,200 km through the heart of the country. The Grand Trunk Express takes 33 hours. The flight? 2.5 hours.

Comparison

Factor	✈️ Flight	🚂 Train
Journey	2.5 hrs	33 hrs
Cost	₹3,500-₹8,000	₹1,000-₹3,000
Frequency	10+ daily	3 daily

Verdict

✈️ Fly. Always. 30+ hours saved. ₹3,500 flights are common on weekdays
🚂 GT Express: Historic route but 33 hours is a very long train ride

South to North

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