The Ontario Municipal Airport (ONO) is classified as a core, Category 3 Regional General Aviation airport. It is part of the National Plan of Integrated Airport Systems. Runway 15/33 is 5011 feet long by 100 feet wide. It has a full length parallel taxiway, pilot controlled medium intensity runway lights, a rotating beacon, and PAPI and REIL's on Runways 15/33. The instrument approaches include NDB, GPS, and LPV with 250-foot minimums on Runway 33.
There is 24-hour self-serve 100LL and jet fuel, along with business hours and call-out truck fueling. Truck jet fuel is over the wing and single point. There is on-field aircraft and helicopter maintenance. The Fixed Base Operator (FBO) has a courtesy car that can be reserved. Tie downs are available starting at a weekly rate. The airport is very friendly with a strong EAA presence. There are 79 based aircraft and a Life Flight base on field.