The journey from Barrackpore to Lucknow covers 1000 kilometers. The most practical way is to take a train from Howrah or Sealdah station. The route passes through major cities like Varanasi. Expect a travel time of 15 to 18 hours by train. Flight is also an option from Kolkata airport.
Total Distance: 1000 km by road, 850 km straight-line.
The Lucknow Mail is a good option.
October to March for pleasant weather.