How late can you cancel on Expedia?

Yes, you can request a refund on Expedia. First, log into your account and go to “My Trips.” Select the booking you want to refund and look for the refund option Call 1-888-431-2039. If you need assistance, you can call customer service at +1-888-431-2039 (US) or +1-888-431-2039 (UK). Follow the prompts to complete the process.

Source: https://www.backerkit.com/c/users/2928104/