Dallas/Fort Worth International Airport may get more flights to London and a new nonstop flight to Madrid if regulators approve a proposed alliance of American Airlines Inc., British Airways PLC, Iberia and other carriers, a D/FW official suggested Thursday.

Joe Lopano, who heads up efforts to attract new service to the airport, said additional connecting traffic at hubs in Dallas/Fort Worth, Madrid and London would be likely to support more European flights.

"Nobody has made any promises. But we believe we can support five flights a day to London," Mr. Lopano told the D/FW Airport board.

"Given the fact that there will be more connectivity, more efficiency and joint pricing that they could do, we think American could support three flights a day and British Airways could support two a day," he said.

Currently, American offers two flights daily and British Airways one a day between Dallas/Fort Worth and London.

American, British Airways, Iberia and several other airlines announced last month that they were seeking antitrust immunity so they could jointly set pricing, schedules and marketing on trans-Atlantic service.

American spokesman Andrew Backover said the carriers can't discuss what routes and schedules they're planning until regulators approve their application.

"However, we expect the agreement to result in enhanced flying opportunities as American Airlines, British Airways and Iberia are able to align our networks and schedules," he said.

"We will be able to expand customer choice by supporting existing routes or launching new service that would not be economically viable for the individual airlines," he said.

Mr. Lopano, the airport's executive vice president for marketing and terminal management, also offered hope for nonstop flights to Madrid.

"We think there's an opportunity for us to get service from D/FW to Madrid and have connecting service over the Madrid hub on Iberia to all these points," he told board members.

American launched non-stop service between D/FW Airport and Madrid in 1988 but canceled the money-losing flights in 1993. It currently operates a daily flight between Miami and Madrid.

Virgin Atlantic Airways Ltd has come out vigorously against the American-British Airways alliance, and other carriers have said it shouldn't be approved unless American and British Airways surrender valuable landing and take-off slots at London's Heathrow Airport.