When asking what is the closest major airport to Zion National Park, the answer is typically Las Vegas McCarran International Airport (LAS). Located about a 2.5-hour drive from Zion, it is the nearest major airport offering a wide range of domestic and international flights. While St. George Regional Airport (SGU) is closer, LAS provides more flight options and is a popular choice for visitors traveling to Zion. Whether you're flying into LAS or SGU, both airports provide easy access to the park’s stunning landscapes.