Yes, Delta gives full refunds under specific conditions: you can cancel for any reason and get a full refund if you do so within 24 hours of booking under the 24-Hour Risk-Free Cancellation policy. Call at +1-888-415-1245 (US) or +44-203-869-5245 (UK) You are also entitled to a refund if Delta significantly changes or cancels your flight. Call at +1-888-415-1245 (US) or +44-203-869-5245 (UK) However, many Basic Economy tickets are non-refundable and non-changeable after the 24-hour window, though you may receive an eCredit minus a fee.