The airport code for Outagamie County Regional Airport is ATW.
The airport code for Eagle County Regional Airport is EGE.
The airport code for Williamson County Regional Airport is MWA.
The airport code for Knox County Regional Airport is RKD.
The airport code for Oconee County Regional Airport is CEU.
The airport code for Porter County Regional Airport is VPZ.
The airport code for Grant County Regional Airport is JDA.
The airport code for Dare County Regional Airport is MEO.
The airport code for Garfield County Regional Airport is RIL.
The airport code for Lea County Regional Airport is HOB.
The airport code for Alpena County Regional Airport is APN.
The airport code for Marion County Regional Airport is FLP.
The airport code for Lorain County Regional Airport is LPR.