Slovakia has four international airports. Bratislava's M. R. Štefánik Airport is the main and largest international airport. It is located northeast of the city centre. It serves civil and governmental, scheduled and unscheduled domestic and international flights. The current runways support the landing of all common types of aircraft currently used. The airport has enjoyed rapidly growing passenger traffic in recent years; it served 279,028 passengers in 2000 and 2,292,712 in 2018. Košice International Airport is an airport serving Košice. It is the second-largest international airport in Slovakia. The Poprad-Tatry Airport is the third busiest airport, the airport is located 5 km east—northeast of ski resort town Poprad. It is an airport with one of the highest elevations in Central Europe, at 718 m, which is 150 m higher than Innsbruck Airport in Austria. The Sliač Airport is the smallest international airport and currently operates only summer charter flights to popular sea resort destinations.