Best way to travel between Delhi and Kathmandu

A: Delhi

B: Kathmandu

Travel Modes: Price; Distance; Duration; CO2

bus: $36.0; 1162.8 km; 38h 7mins; 34.88 kgs

train: $39.0; 1268.96 km; 30h 31mins; 67.25 kgs

flight: $85.0; 877.76 km; 3h 56mins; 94.8 kgs

drive: $120.0; 1053.69 km; 15h 27mins; 134.87 kgs

Tranport	Distance	Time(hrs)	Cost(local)	Cost(usd)
Bus	1162.8 km	38h 7mins	3,596 NPR	36.0
Train	1268.96 km	30h 31mins	3,896 NPR	39.0
Flight	877.76 km	3h 56mins	8,492 NPR	85.0
Drive	1053.69 km	15h 27mins	11,988 NPR	120.0

Take Train from Chandni Chowk to Jahangirpuri: Time: 22mins Cost: 100 NPR; $ 0.9 - 1.1 USD CO2 Emission: 0.59 kgs
Take Bus from New Delhi to Pokhara: Time: 30h 36mins Cost: 2,697 NPR; $ 24.3 - 29.7 USD CO2 Emission: 28.4 kgs
Take Bus from Pokhara to Kathmandu: Time: 5h 6mins Cost: 899 NPR; $ 8.1 - 9.9 USD CO2 Emission: 6.16 kgs

Source: Rome2rio

Mode of travel comparision chart

The best and cheapest way to get from Delhi and Kathmandu is to travel by bus, which will cost about 3,596 NPR or 32.40 USD.