https://techcrunch.com/2020/09/03/spirit-airlines-starts-testing-biometric-check-ins/

Discount carrier Spirit Airlines today announced that it is introducing biometric check-ins in its ticket lobby at Chicago’s O’Hare airport to streamline the check-in process and reduce face-to-face interactions between its employees and passengers during the pandemic.

The new process is straightforward, though it still involves one customer service agent at the beginning, who will check the flier’s ID before approaching the new check-in/bag drop units. If passengers opt in to the biometric procedure — and this remains optional — they scan their ID and the system will compare the photo with a facial scan captured by the machine.