Southwest Florida International Airport has one passenger terminal with three concourses –  B, C  & D.
The lower level of the passenger terminal has a baggage claim area.
The main level of the terminal has a good selection of food & drink establishments, a newsstand and some stores. 
The upper level has three sections of ticket counters, corresponding to the airlines served by Concourses (use entrance door 1 & 2 for Concourse B airline ticket counters 13-17; use doors 3 and 4 to ticket counters 5-12 for Concourse C; and use Doors 5 & 6 for ticket counters 1-4 for Concourse D). Elevators and escalators take you to the security checkpoints of Concourses B, C & D and their gates.

Concourse B of the passenger terminal is presently served by Air Berlin, Air Canada, AirTran, Frontier, Midwest, Spirit, Sun Country, United, USA 3000 & WestJet, with gates B1 to B9, and a few food & drink establishments, stores & an ATM machine
Concourse C of the passenger terminal is presently served by Continental, Delta/Delta Connection airlines, with gates C1 to C9, and a few food & drink establishments, stores.
Concourse D of the passenger terminal is presently served by American/American Eagle, JeBlue, Southwest & US Airways airlines, with gates D1 to D10, and a few food & drink establishments, stores & an ATM machine.

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