Southwest Florida International Airport (IATA: RSW, ICAO: KRSW, FAA LID: RSW) is a major county-owned airport in the South Fort Myers area of unincorporated Lee County, Florida, United States.

The airport serves the Southwest Florida region, including the Cape Coral-Fort Myers, Naples-Marco Island, and Punta Gorda metropolitan areas, and is a U.S. Customs and Border Protection port of entry.

[7] Prior to the opening of the airport, the region was served by Page Field in Fort Myers.

By the 1970s, however, it had become clear that Page Field would be too small to handle increasing future demand for commercial flights into the region.

[8] A number of sites were considered for a new regional airport, including southern Charlotte County, Estero, and northeast Cape Coral near Burnt Store Marina.

The government of Lee County ultimately selected a site near the end of Daniels Parkway which was a dirt road at the time.

[9] Originally, the airport included a single 8400-ft runway and a passenger terminal with 14 gates on two concourses.

The name change coincided with the completion of a 55,000 square foot Federal Inspection facility annexed to the original terminal's Concourse A.

In 1998, the original terminal was expanded with a new wing added to Concourse B which included three additional gates, bringing the total to 17.

[16] It came in response to rising tourism from Germany, which Lee County had spent the past several years cultivating.

The county considered Germany a natural market to target, given the sizable German-American community that lived in Southwest Florida and maintained ties with its country of origin.

[26][27] A new $16 million Airport Rescue and Fire Fighting facility (Lee County Station 92) opened in July 2013.

[37] Customs and Immigration services for international flights are located on the lower level of Concourse B.

The concourses are each completely separate and are not currently connected Airside, though the expansion underway will consolidate the three checkpoints into one.