Planning a trip from Kolkata to Delhi? With more than 65 daily direct flights, this is a highly linked line. Among the major airlines running often are IndiGo, Vistara, and Air India. From early morning to late night, flights go. Kolkata provides great cuisine, colonial architecture, and a rich cultural scene. Among the top attractions are Howrah Bridge and Victoria Memorial. Book early, choose weekdays, and look at rates online for optimum discounts and simple travel.