The best price found from United States to Tainan is on June 21st, 2017, travelling with ANA. See more options, compare prices and book: search flights.
Tainan Airport (www.tna.gov.tw) is located in South District of Tainan City. It has flights via China Airlines to Hong Kong and Osaka; via China Eastern Airlines to Wuhan in China; via Uni Air to Kinmen and Magong; and via VietJet Air to Ho Chi Minh City.
Bus 5 connects the airport with Tainan Train Station (NT$18, 20 minutes). HSR shuttle buses (route H31) connect the HSR station at the airport with Tainan City Government Station (free, 40 minutes, every 30 minutes).