WASHINGTON — American Airlines spent $1.45 million in the third quarter to lobby for antitrust immunity of a joint venture with British Airways and other issues.

Details are in a recent disclosure report by Fort Worth-based American.

American said it lobbied Congress and the Transportation Department for antitrust immunity for a deal to cooperate with British Airways and Iberia Airlines on fares and schedules for trans-Atlantic service.

American disclosed the lobbying in a form filed Oct. 20 with the U.S. House clerk's office.

The airlines in August submitted their request for immunity.

Executives at American said they want the same immunity given to other airline alliances on trans-Atlantic flights.

But leaders of American's pilots union have said they fear the deal could cost jobs, and they want a decision delayed until after President-elect Barack Obama takes office in January.