Smoking is allowed on flights to Europe, the Mideast, and Africa. Cathay Pacific has announced its intention to become a totally smoke-free airline, on all its routes worldwide, by the end of 1995. SFO-TPE and all flights within Asia. They also permit smoking on flights to Europe and Africa. Most CRS don't indicate which China Airlines flights are smoke-free, so call the airline to check specific flights.
Smoking is banned on some flights to the South Pacific.
Only flights originating or terminating in Japan will permit smoking. All flights worldwide except flights to Tokyo will be smoke-free as of May 1, 1995. The stated reasons were economic. Only the US leg of a multipart flight would be affected. All airlines would be affected, including foreign airlines.