Till the end of February 2019, Jet Airways and Vistara under mutual agreement used to honour each other’s tickets issued to passengers in case of cancellation of one of the companies’ flights. So a flier of Jet Airways could travel in Vistara and vice versa without worrying about the hassles in case of cancellation of the flight. Now the agreement doesn’t exist and fliers of Jet Airways are going through nightmares in the wake of mass cancellations and grounding of aircrafts.