Luton Airport says it has replied to almost 16,500 customer queries after a fire ripped through one of the car parks.
Terminal Car Park Two was severely damaged by the blaze on Tuesday.
There were up to 1,500 cars in the structure when the blaze broke out and many passengers have said they are still waiting to hear if their car has been damaged or destroyed.
A spokesman for the airport said they are working hard to provide details.
APCOA parking, which manages the airport's car parks, is working with the airport to respond to customer queries.
The car park suffered a "significant structural collapse" as a result of the fire.
A spokesman for the airport said: "Dealing with such a large volume of questions has naturally taken longer than we would have liked.
"Although we don't have all the answers at this stage, we are working hard to provide more details as soon as possible.
"The Motor Insurers' Bureau will be co-ordinating claims with all insurers and we continue to provide all information requested.
"We recognise this has been a distressing situation for all concerned and we would like to thank our customers for their patience and understanding."
The driverless shuttle link, Luton Direct Air-Rail Transit (Dart), that connects Luton Airport Parkway railway station to the airport remains shut.
While the Dart was undamaged by the fire, there were still safety concerns and the service was expected to remain closed until next week.
