 In 2004 , the company was acquired by Ajay Singh and the airline planned to restart operations as SpiceJet following the low @-@ cost model . SpiceJet leased two Boeing 737 @-@ 800 aircraft in 2005 and planned to order 10 new aircraft for expansion . SpiceJet opened bookings on 18 May 2005 and the first flight was operated between Delhi and Mumbai on 24 May 2005 . By July 2008 , it was India 's third @-@ largest low @-@ cost carrier in terms of market share after Air Deccan and IndiGo . Indian media baron Kalanidhi Maran acquired 37 @.@ 7 % stake in SpiceJet in June 2010 through Sun Group . The airline ordered 30 Boeing 737 @-@ 8 aircraft worth US $ 2 @.@ 7 billion July 2010 and a further 15 Bombardier Q4 Dash short @-@ haul aircraft worth US $ 446 million in December 2010 . 
