Sultanpur Junction railway station is a largest and most important railway station in Sultanpur district, Uttar Pradesh. Its code is SLN. It serves Sultanpur city. The station consists of four platforms. The main line of the Oudh and Rohilkhand Railway from Lucknow to Rae Bareli, Varanasi, Faizabad, Jaunpur, Mughal Sarai and Allahabad serves the south-western portion.

Some of the trains that runs from Sultanpur are:

• Lucknow–Mau Express
• Ghazipur City–Shri Mata Vaishno Devi Katra Weekly Express
• Upper India Express
• Lokmanya Tilak Terminus–Sultanpur Express
• Mahamana Express
• Suhaildev Superfast Express
• Begampura Express
• Himgiri Superfast Express
• Akal Takht Express
• Indore–Patna Express
• Marudhar Express (via Sultanpur)
• Dr. Ambedkar Nagar–Kamakhya Weekly Express
• Varanasi–Sultanpur Passenger
• Howrah–Amritsar Express
• Patliputra–Chandigarh Superfast Express
• Manwar Sangam Express
• Saryu Express

• Kerakat railway station
• Varanasi Junction railway station
• Ghazipur City railway station
• Varanasi–Jaunpur City–Sultanpur–Lucknow line

• SLN/Sultanpur Junction