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Lima Allen County Airport lies six miles southeast of Lima, Ohio, and serves as the region's primary general aviation field with a long, chequered history of scheduled airline service. Today it offers a full-length ILS-equipped runway, a fixed-base operator with round-the-clock facilities, and steady light aircraft and air taxi traffic.
Lima Allen County Airport (KAOH) is a publicly owned, public-use aerodrome serving Lima, Ohio, and is operated by the Allen County Regional Airport Authority. It is primarily a general aviation field today, though it once hosted a succession of scheduled airline operators, and it remains of interest to visiting pilots for its long hard-surfaced runway, ILS approach, and full-service fixed-base operation.
The airport sits at coordinates 40.7075, -84.0271, at an elevation of 961 feet, roughly six miles southeast of the city of Lima in Allen County, Ohio, near the junction of Hanthorn Road and State Route 117. No specific controlled airspace classification or neighbouring controlled fields are detailed in the available material.
The airport has two physical runways. The primary runway, 10/28, is a hard-surfaced, lit strip measuring approximately 5,965 to 5,966 feet, with an ILS serving runway 28. A secondary runway, 14/32, is 4,415 feet long with a dirt surface and is not lit.
Weather is available via ASOS on 108.4 MHz. Common traffic advisory and unicom calls are made on 122.7 MHz. Indianapolis Center can be reached on 128.075 MHz. The field is equipped with an instrument landing system serving runway 28.
No specific published circuit heights, joining instructions, or noise abatement procedures are detailed in the available material; pilots should use standard traffic pattern procedures and monitor the CTAF/UNICOM frequency of 122.7 MHz for local traffic.
The airport lies near the corner of Hanthorn Road and State Route 117, southeast of the city of Lima, which can serve as a general visual reference for orientation when approaching from the northwest.
Lima's original airport was located a few miles northwest of the city near the village of Elida. Airline service using Lake Central Airlines DC-3s began there in 1953-54. In November 1958 a bond issue was passed to fund two new paved runways and a terminal, but by May 1960 the county had instead selected a cheaper 525-acre site east of the city, prompting a legal challenge that was ultimately decided in the county's favour. Groundbreaking for the new facility, including a planned 5,150 by 150 foot runway, took place in June 1961, and the airport was dedicated on 3 September 1962. Lake Central's service was maintained by Civil Aeronautics Board decision in 1965, and after a period without a fixed-base operator, Reed Thompson took over operations in January 1966. A succession of airlines attempted scheduled service over the following two decades, including Northern Airlines from 1969, Apollo Aviation (part of the Allegheny Commuter network) from 1973, the short-lived Mid-Continent Airlines in 1976, and Trans Midwest Airlines from August 1983, each ultimately withdrawing due to insufficient passenger numbers or financial difficulty. The facility was renamed Lima-Allen County Airport effective 1 January 1983, and a contract for the installation of an instrument landing system was awarded that year, with construction nearing completion by September 1984. The runway was extended to 6,000 feet following approval granted in August 2009. The airport originally had a second runway, 14/32, which was closed during winter months and whose grass portion was removed in 2013 owing to lack of use, maintenance requirements, and poor wind alignment. In 2022 the airport completed lighting upgrades, including new runway and taxiway edge lights, runway end identifier lights, and PAPI lights for runway 10, along with pavement seal coating and apron rehabilitation, funded in part by federal COVID-19 relief money.
The airport is a general aviation facility with a fixed-base operator providing fuel, general aircraft maintenance, catering, hangars, courtesy transportation, conference rooms, pilot supplies, a crew lounge, snooze rooms, and a 24-hour terminal. In the year ending August 2022 the field recorded around 32,500 aircraft operations, averaging 89 per day, with the majority general aviation traffic alongside air taxi and a small proportion of military movements; 37 aircraft were then based there, comprising 30 single-engine and 6 multi-engine airplanes and one jet.
