South Arkansas Regional Airport at Goodwin Field (IATA: ELD, ICAO: KELD, FAA LID: ELD) is nine miles west of El Dorado, in Union County, Arkansas, United States. It was served by SeaPort Airlines, a service subsidized by the federal government's Essential Air Service program at a cost of $1,977,153 (per year). SeaPort Airlines ceased operations on September 20, 2016.

The National Plan of Integrated Airport Systems for 2021–2025 categorized it as a general aviation airport (the commercial service category requires at least 2,500 enplanements per year).

The first airline flights were on Chicago and Southern in 1945; Trans-Texas arrived in 1953 and Delta/C&S soon pulled out. The last TI Convair 600 left in 1977.

In May 2024, the main runway was repaved. Also, the runway numbers were updated to 05 / 23.