The president's proposal will force all U.S. airlines to compensate customers when they are responsible for cancellations or delays.

Only Alaska Airlines commits to compensating with miles in such cases, but no airline in the country guarantees cash compensation. The new rules could force airlines to "proactively" inform passengers about the compensation to which they are entitled when there are changes of more than three hours. They may also be required to offer travel vouchers that do not expire when a person is unable to travel due to a contagious disease.