United officials say it's too soon to know if the fallout from the incident that left Dr David Dao bloodied and suffering from facial injuries is hurting ticket sales.
Three staff members had been suspended over the incident.
The incident sparked an outrage that was further exacerbated by United CEO Oscar Munoz's form-letter apology and choice of words in his public statement.
"Whether it is overbooked planes, delayed flights or sky-high fees, the laws we have now in place to protect consumers have been frequently and flagrantly ignored by airlines more concerned with profits than passengers", said Blumenthal. The flight had been overbooked, as the airline was trying to make room for four crew members from a sister airline.
The Chicago-based United Airlines airline is reviewing policies with regard to handling oversold flights to prevent similar incidents, and talking to some passengers and employees on how the airline can take a more "common-sense approach". Security was called and after a violent tussle with the passenger in his economy class window seat, the medical practitioner was dragged off apparently unconscious with two teeth missing, a broken nose and concussion. Other airline stocks also declined in the same period.
Munoz and his top lieutenants indicated that it was too early to tell if bookings had been affected by the incident.
United's first-quarter financial results shows higher profits than those expected by analysts, which Munoz said gave the company "a lot of confidence about the foundation we're building".
'It was a system failure across various areas, so there was never a consideration for firing an employee or anyone around it, ' Munoz said during Tuesday's quarterly earnings conference call.
United spokeswoman Megan McCarthy said the airline looks "forward to meeting with the committee and sharing with them the comprehensive review and the customer-focused actions we will communicate next week".
And some United States politicians have called for a total ban on overselling flights.
"Many of us who fly frequently have experienced overbooking situations", Lipinski said, "but obviously how it was handled in this circumstance was unacceptable, and no passenger should ever be put through what this individual was".