Under what condition may Frontier deny boarding to a customer with a disability?

Frontier may deny boarding to a customer with a disability if they require medical oxygen onboard due to safety regulations and operational requirements. Airlines have specific protocols regarding medical equipment and the transportation of oxygen, which can stem from concerns about the safety and health of all passengers onboard. If a passenger needs medical oxygen, they may need to provide advance notification, and in some instances, if the airline cannot accommodate their oxygen requirements safely, boarding may be denied.

In contrast, customers who cannot travel unassisted, those with non-visible disabilities, or those traveling with pets do not typically fall into categories that justify denial of boarding under the Air Carrier Access Act. Airlines are often required to provide reasonable accommodations to assist passengers with disabilities, regardless of the nature of their disability, as long as the accommodations do not pose a safety risk. Additionally, traveling with a pet does not limit the travel rights of a person with a disability; airlines have separate policies for service animals versus pets, and a passenger's pet status would not inherently result in denial of boarding based on their disability.