- E-LSA
Experimental light-sport aircraft
- EADI
Electronic Attitude Director Indicator
- EAG
European Action Group
- EAS
Equivalent airspeed
- EASA
European Aviation Safety Agency
- EASO
European Aviation Suppliers Organisation
- EATCHIP
European ATC Harmonisation and Integration Programme
- EBAA
European Business Aviation Association
- ECAC
European Civil Aviation Conference
- ECAM
Electronic Centralised Aircraft Monitor
- ECET
End of civil evening twilight
- ECTAA
Group of National Travel Agents' and Tour Operators' Associations within the EU
- EDI
Electronic Data Interchange
- EFD
Electronic Flight Display
- EFIS
Electronic Flight Instrument System
- EFIS
Electronic Flight Instrument System
- EGPWS
Enhanced Ground Proximity Warning System
- EGPWS
Enhanced Ground Proximity Warning System
- EGT
Exhaust Gas Temperature
- EHSI
Electronic Horizontal Situation Indicator
- EICAS
Engine Indication Crew Alerting System
- EICAS
Engine Indicator and Crew Alert System
- ELT
Emergency Locator Transmitter
- ELT
Emergency Locator Transmitter
- ENC
Electronic Noise Canceling
- ENR
Electronic Noise Reduction
- EPR
Engine Pressure Ratio
- EPR
Engine Pressure Ratio
- ERA
European Regions Airlines Association
- ESA
Emergency Safe Altitude
- ET
Electronic Ticketing
- ETOP
Extended Range Twin Engine Operation
- ETP
Equal Time Point
- ETS
Emissions Trading Scheme
- EU
European Union
- EUROCAE
European Organisation for Civil Aviation Equipment
- EUROCONTROL
European Organisation for the Safety of Air Navigation