I travelled by indigo many times .its one of the comfort domestic airline . I travelled by indigo more then 10 times but according to my experience they fly always on the time .staff members are also very helpful and good. they have very frequent flight .i have seen many flight on igi airport I think in igi airport almost idigo flights . indigo is the finest domestic airline in india I personally recomend to everone to fly by indigo atleast once .