Guernsey Ports say the majority of Blue Islands' outstanding debt it is owed has been recovered.
Two ATR-72s have been impounded at Guernsey Airport since Blue Islands ceased operations in November.
Guernsey Ports says they have now been released after a settlement was reached with the aircraft owners, recovering "the majority of Blue Islands’ outstanding debt to Guernsey Ports."
A claim will be made to the airline’s liquidators to recover the remaining unpaid fees.
The amount that was owed to Guernsey remains undisclosed - Jersey's government is owed millions.
STSB President, Deputy Mark Helyar, said the settlements represented a very positive result:
“Following the sudden collapse of Blue Islands, Guernsey Ports moved quickly to protect the island’s interest and recover money owed by the airline.
"It has involved some very complex, detailed discussions with the owners of these aircraft, with expert legal assistance being provided by the Law Officers.
"As a result we have now reached a settlement that is very positive for the island, which is a credit to the team involved.”

Man arrested over 'threats to kill' in Guernsey
Jersey and Guernsey both lift trophies in Siam and Muratti weekend
Men pretending to be police arrested for £10K Guernsey convent fraud
Channel Islands' 10 wealthiest residents revealed
85 home planned for Forest site in Guernsey
Sewage outfall failure on Guernsey's east coast
Guernsey's airline sets up Southampton base
Cuts to services in Guernsey considered under tax review