Domestic Flights while visitor visa extension is in process

[blossomgreen]

My dad's visa extension has been recently applied and we haven't got the receipt yet. Would he be allowed to fly within US with expired i94?

[inadmissible]

For domestic flights, TSA only needs valid recognized ID. See https://www.tsa.gov/trip-cancellation-insurance/security-screening/identification

[blossomgreen]

For domestic flights, TSA only needs valid recognized ID. See https://www.tsa.gov/trip-cancellatio...identification

Thanks for the reply.