Nut Tree Airport (ICAO: KVCB, FAA LID: VCB, formerly O45) is a county-owned public-use airport located two nautical miles (3.7 km) northeast of the central business district of Vacaville, in Solano County, California, United States.

[2] It is adjacent to the Nut Tree retail/commercial development, which replaced a historic US 40 highway stop from which both derive their name.

[4] Nut Tree Airport covers an area of 262 acres (106 ha) at an elevation of 117 feet (36 m) above mean sea level.

[1] For the 12-month period ending March 21, 2022, the airport had 87,000 aircraft operations, an average of 238 per day: 97% general aviation and 2% air taxi.

At that time there were 214 aircraft based at this airport: 189 single-engine, 19 multi-engine and 6 helicopters.