Get everything about 'How Long Does TUI Take to Refund? TUI is one of the best airlines that always returns your money as early as possible. If you cancel a flight with TUI and are looking forward to getting a refund, it depends on your original mode of payment.  If you want to know exactly 'How Long Does TUI Take to Refund?' It is 7-20 business days. For credit/debit/online payments, the...