---
title: "En Route Flight Advisory Service — aviation glossary — OnlyPlanes"
description: "EFAS stands for En Route Flight Advisory Service in FAA terminology."
canonical_url: "https://onlyplanes.ru/en/learn/en-route-flight-advisory-service"
locale: en
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  "og:title": "En Route Flight Advisory Service — aviation glossary"
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Aviation abbreviation

# En Route Flight Advisory Service

EFAS

ABBR · Flying skills

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.

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