Airlines aren’t making it easy to use covid credits

A credit from a store is usually straightforward. A credit from an airline can be anything but: It’s often hard to use, and you may never get back all your money.

With billions of dollars tied up in vouchers for a pandemic’s worth of canceled flights, some airlines have created new classes of vouchers. Some have new restrictions that limit their use and value.

United, a target of many customer complaints, has two types of credits: travel credits and flight credits. They may sound nearly identical, but they’re quite different.