A spokesman for the carrier expanded on the proposal, which has previously been branded unworkable by rivals, and said that the flights could touch down in between 12 and 14 North American cities.“We would love to do transatlantic flights and the business plan is there,” a Ryanair spokesman said this morning. “The lowest fares would start from €10 and we would link 12 to 14 European cities with 12 to 14 US cities.”Ryanair said it requires the appropriate aircraft to go ahead with the proposal however.“It is entirely dependent on attaining long-haul aircraft at a viable cost and at the moment,” the spokesman said. “There is a shortage of available aircraft.”Last year O’Leary claimed that the €10 fees would not include baggage fees and extras.”There is an opportunity with the EU-US open skies to, on a fairly big scale, connect 15-20 European cities with 15 of the big U.S. cities almost from day one. But you need a fleet of 30, 40, 50 aircraft and not two, four or six,” he said.He added at the time that a long-haul service, for example, might feature a “premium” section, like those offered by Asia’s low-cost, long-haul carriers.Norwegian has recently claimed to be offering some of the cheapest transatlantic air fares on the market, with returns available, for fliers who can be flexible with their dates, from £149/€187 one-way.When it launched a new long-haul service from Oslo to New York in 2013, Norwegian faced criticism from passengers after it refused to serve food or water unless paid for using a credit card. The policy, used on Norwegian’s short-haul flights, was abandoned after some fliers were left hungry and thirsty for nearly 12 hours.Currently the carrier is offering a return from London Gatwick to New York from Tuesday, November 25 to Saturday, November 29, for £360.20/€452.