I
- IA - Information Assurance
- IAW - In Accordance With
- ICBM - Intercontinental Ballistic Missile
- IFE - In-Flight Emergency
- IFF - Identification Friend or Foe or Introduction to Fighter Fundamentals
- IFFCC - Integrated Flight and Fire Control Computer
- IFT - Introductory Flight Training
- IG - Inspector General
- ILS - Instrument landing system
- IMDS - Integrated Maintenance Database System
- IMINT - Imagery Intelligence
- INOSC - Integrated Network Operations and Security Center
- IP - Instructor Pilot
- IPB - Intelligence Preparation of the Battlespace
- IO - Information Operations
- IOIC - Information Operations Integration Course
- IS - Intelligence Squadron
- ISR - Intelligence, Surveillance, and Reconnaissance
- ITT - Information, Tickets, and Travel
- IYAAYAS - If You Ain't Ammo, You Ain't Shit
Read more about this topic: List Of U.S. Air Force Acronyms And Expressions