Air France joins most of its European counterparts in banning smoking on all trans-Atlantic flights. Flights to and from the United States and Canada will be completely smoke-free as of March 29, as will flights between Los Angeles and Tahiti. (Flights from Miami to the Caribbean will still have smoking sections.)

Last month Air France eliminated smoking sections on all flights within Europe. Flights to Africa, Asia and South America will still offer "air pur," its enclosed and ventilated smoking bars.British Airways and Virgin Atlantic have already banned smoking on flights to North America. British Airways allows smoking on flights between London and Eastern Europe, South America, Spain, Russia and Tokyo. Virgin Atlantic has smoking sections only on its London to Tokyo route. But by April 1, smoking sections will have been eliminated on all routes of both airlines.

Last month Lufthansa became completely smoke-free, joining a list that includes Aer Lingus, Finnair, Icelandair and Scandinavian Airlines.

Many other European airlines permit smoking only on flights to Latin America, Asia and Africa.