Representational Image Worried about losing money on your IndiGo flight cancelation? Plans change, and we get that. The good news is that IndiGo lets you cancel your flight for free within 24 hours of booking, as long as your travel date is at least 7 days away. The cancelation fees change by a lot after this window, based on when you cancel and where you're flying to. For international flights , you'll pay between ₹3,300 and ₹6,000 to cancel flights within the subcontinent.