Three new 72-seater airplanes will join Aurigny's fleet.
Guernsey's local airline will invest around £46.4 million in the three new aircraft to replace older versions.
The planes will be used on the Gatwick and other UK routes.
Each of the new aircrafts will have a new system called 'ClearVision' to enable them to operate despite poor visibility.
The States' Trading Supervisory Board (STSB), who look after Aurigny, is seeking States’ approval to allow Policy & Resources Committee to provide a Letter of Guarantee for the loan that Aurigny will take out to buy the aircraft.
The airline say that replacing the older aircraft will save more than £4 million over 10 years.
Aurigny's business case will be debated in December.
If approved, the aircraft will arrive on the island in the second half of 2019.