Flight Special! Up to Rs.1,500 Cashback on Domestic Flight Bookings on ClearTrip.com. TnC : Book a domestic flight online or on the Cleartrip mobile app. Simply enter the coupon code CT2020 before making the payment with your debit/credit card or netbanking. The instant cashback amount will be instantly deducted from the total payable amount. The wallet cashback will be credited in your Cleartrip wallet within 24 hours.