Go to the IndiGo website or open the IndiGo app
Log in or use the Manage Booking option
Enter your booking reference and last name
Select the flight you want to reschedule
Choose the new date or time
Review the fare difference and any change fee
Confirm the changes and complete payment if required
Check your email or SMS for the updated itinerary
If needed, contact IndiGo customer support or visit the airport counter for assistance