Short-term international commuters could be hit by a proposed Conservative tax on air travel. Tory leader David Cameron recently announced plans for a higher rate of aviation tax for anyone who makes more than one short-haul flight a year. Some 400,000 people who currently own a second home abroad would also be affected, as would those who regularly fly out to see relatives abroad. Mr Cameron stressed that any money gained from air tax would be spent on tax breaks for families.