Kolkata to Patna

flight price shown is indicative one-way fares, actual may vary | train price shown is for reserved seat / berth | layover time mentioned is for the fastest route in the layover category, it might change as per your traveling dates.
Fare of Rajdhani, Shatabdi & Duronto may change due to Railways' surge pricing. Know more
If Patna was closer by, I would go there every weekend !
Kolkata (West Bengal) to Patna (Bihar) distance is 581 km and you can get there by train in just over 10 hours and 13 minutes with fares starting from ₹ 953. The weather at Patna is varying from "nice" to "hotter than nice".
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