US Helicopter Corp. announced it has extended its agreement with Worldspan, so that its fares and inventory are available in the technology company's global distribution system. The company provides airport transportation between some of New York's major airports, including John F. Kennedy International, Newark Liberty, the Downtown Manhattan Heliport and the Atlantic Metroport at East 34th Street. Due to this new agreement agents can book US Helicopter segments simultaneously with flight arrangements, under one itinerary and fee, the company said.