Often, swollen ankles due to flying are harmless and go away on their own. In rare cases, however, ankle swelling may be a sign of deeper vein thrombosis (DVT), which is more serious and requires ...

Swollen ankles, also known as edema, are brought about by the buildup of fluid around the ankles, feet and legs. Most of the time, swollen ankles are temporary and not a cause for concern.

If your ankles and feet look swollen, it could be a temporary case of diminished circulation. It could also be the result of a mild injury, such as a sprained ankle that you can treat at home.