Middletown Regional Airport,[2] also known as Hook Field,[3][4] (IATA: MWO, ICAO: KMWO, FAA LID: MWO) is a city-owned public-use airport located two nautical miles (3.7 km) north of the central business district of Middletown, a city in Butler County, Ohio, United States.

In late August 2008 the airport gained some national prominence when the Republican vice presidential nominee Sarah Palin flew into Hook to later attend a Dayton campaign rally where she was announced as Senator John McCain's running mate.

[5] The airport is home to the Ohio Challenge Hot Air Balloon Festival, an annual event for over 20 years.

[citation needed] The airport is home to facilities managed by Butler Tech, which provides technical training for adults in the area.

[9] For the 12-month period ending October 12, 2022, the airport had 40,150 aircraft operations, an average of 110 per day: 91% general aviation, 9% air taxi, and <% military.