By plane The closest international airport is in Kaohsiung . From there you can take a train, bus, taxi, or rental car for a 45 minute to one hour journey to Tainan.
There is a domestic airport in Tainan, and the flights from Taipei take about 45 minutes.
By bus Tainan has good inter-city bus connections with other cities in Taiwan.
By train Tainan is a major stop on the Taipei - Kaohsiung express line.
For more detailed information see get around on the Taiwan page.