Aviation abbreviation
En Route Flight Advisory Service
EFAS
At a glance
Meaning of En Route Flight Advisory Service
EFAS stands for En Route Flight Advisory Service in FAA terminology.
More about En Route Flight Advisory Service
This abbreviation is used in flying and flight procedures. The English reference lists En Route Flight Advisory Service with the abbreviation EFAS.
FAA abbreviations reflect US aviation usage. Their meaning and permitted use can differ in documents from other countries.