Assume one has a flight scheduled with Scoot, but owing to crucial work, he needs to change the flight date on Scoot. So he can modify the travel date because the airline allows him to do so, but the airline will charge him for it. You can also use a free flight change, but you must follow the airline's flight change policy and meet the free flight change criteria. Scoot Airlines Flight Change

https://www.airmonks.com/flight-change/scoot-airlines-flight-change