https://intellij-support.jetbrains.com/hc/en-us/community/posts/21702257125650--%F0%9D%9F%AD-%F0%9D%9F%96%F0%9D%9F%96%F0%9D%9F%96-%F0%9D%9F%B4%F0%9D%9F%90%F0%9D%9F%97-%F0%9D%9F%99%F0%9D%9F%9C%F0%9D%9F%9E%F0%9D%9F%9F-united-airline-cancellation-policy
Yes, united provides a 24-hour risk-free cancellation policy at [𝟭-(𝟖𝟖𝟖)-𝟴𝟐𝟗-1𝟜𝟞𝟟>]. You can cancel any ticket within 24 hours of booking for a full refund, as long as the flight was booked at least 7 days before departure, by calling [𝟭-(𝟖𝟖𝟖)-𝟴𝟐𝟗-1𝟜𝟞𝟟>].