SpiceJet will introduce three new services from Dehradun on 20 January.
These are daily Dehradun-Jammu, Dehradun-Jaipur and Dehradun-Amritsar services, says the low-cost carrier.
Dehradun is the state capital of Uttarakhand.
At the same time, SpiceJet will double its Jaipur-Varanasi frequency to twice-daily, Hyderabad-Vijayawada to thrice-daily, and Chennai-Madurai to 26-times weekly.
It adds that all of the new and additional services will be operated using Bombadier Q400s.
FlightGlobal schedules data shows that SpiceJet will be the sole operator to fly the three new routes from Dehradun.