Orlando Sanford International Airport (SFB) is considered a "medium-busy" airport in 2026, significantly less crowded than its massive neighbor, Orlando International (MCO). While SFB handles nearly 3 million passengers annually, its operations are primarily focused on "leisure" and "ultra-low-cost" carriers like Allegiant Air. This means that while the terminal can feel very busy during "peak banks" (when several flights depart at once in the morning or early evening), it often feels like a quiet regional airport during the midday lull. In 2026, SFB is a popular choice for travelers who want to avoid the 2-hour security lines and massive terminal walking distances of MCO. However, "busy" at SFB can be frustrating because the airport has fewer amenities and smaller waiting areas; a single delayed flight can quickly fill a gate area to capacity. If you are flying Allegiant or a seasonal international charter from the UK, expect a "bustling but manageable" environment that offers a much faster "curb-to-gate" time than the primary Orlando hub.