Apart from trains, Jalandhar is easy accessible by buses plying from all over the North India. There are many interstate buses connecting Jalandhar to the major towns of Himachal Pradesh, Jammu and Kashmir, Haryana, Delhi and Rajasthan.
Jalandhar is well connected to all the major cities in Punjab by Public and Private buses. There are private buses connecting Jalandhar to the towns in other states but generally they don't have the legal permits and took much time as compared to state owned buses. However, these can be comfortable as compared to state buses depending upon the bus operator. There are air conditioned buses also which generally have valid permits.
There is no airport in Jalandhar but the nearest airport is in Amritsar at a distance of 100 km (90 mins). There are many airlines operating from Amritsar airport connecting it to Europe, North Ameica and Middle east. However the transport system connecting Airport to Jalandhar is poor, so it is advisable to book a taxi before you arrive.
Eat Aloo ka paratha with makhan(butter) and dahi(curd). If it's winter time, don't forget to have makki ki roti and sarson ka saag. And yes, make sure you taste the mast lassi.