Sonepur Town doesn’t have an Airport, hence there is no flight connectivity. The nearest Airport is Lok Nayak Jayaprakash Airport at Patna (PAT, VEPT) which is hardly 25 km by Road.
Patna is connected to Cities like New Delhi, Kolkata, Mumbai, Bangalore, Ranchi, Kathmandu (Nepal) through direct flights. Connecting Flights are also available for Goa, Srinagar, Pune, Chennai, Lucknow, Hyderabad, Vishakhapatnam, Jammu, Indore and Ahmedabad.
During Peak Seasons (November-March), Lord Buddha International Airport, Gaya (GAY, VEGO) has regular flight connectivities to neighbouring countries like Nepal, Sri Lanka, Myanmar Thailand, Bhutan. Gaya Airport would be around 120 km from Sonepur. See the List of Flights to BodhGaya
Regular Taxis and Autorickshaw are available connecting Sonepur to Patna Airport.