Yes, Avianca offers a 24-hour refund policy, which allows you to receive a full refund if you cancel within 24 hours of booking 1-833-701-7575 If you need assistance, please contact our support team at any time 1-833-701-7575. 

Avianca Customer Support (US)
Phone: 1-833-701-7575
We are available 24/7 to assist you with any inquiries or cancellations.