Colombo Bandaranaike International Airport (CMB) serves Colombo, the largest city in Sri Lanka, and sits roughly 20 miles from the city center. The airport lies at an elevation of 29 feet above sea level, placing it close to sea level in line with its coastal setting on the island.

As the main international gateway to Sri Lanka, Colombo Bandaranaike International Airport connects the country to destinations across Asia, the Middle East, Europe, and beyond, reflecting Sri Lanka's position as a hub linking South Asia with other regions. The airport's traffic pattern is predominantly international in character, serving travelers moving between the island and a wide range of continents rather than focusing on short domestic hops. This makes it a key node for long-haul and regional connections alike, handling a mix of flights that span considerable distances across different climatic and geographic zones.

Travelers departing from or arriving at Colombo Bandaranaike International Airport should note its low-lying coastal location, which is typical of many major airports situated near tropical or subtropical shorelines. The 20-mile distance to the city center means ground transportation time should be factored into travel planning, particularly for connecting flights or time-sensitive arrivals. Given its role as a significant international hub for Sri Lanka, the airport accommodates a broad and varied volume of air traffic throughout the day.