Alaska Airlines, Inc. Midway Airlines Muse Air Corporation v. United Airlines, Inc., Alaska Airlines, Inc, and Northwest Airlines, Inc. v. United Airlines, Inc., and American Airlines, Inc.

948 F.2d 536 60 USLW 2327 , 1991-2 Trade Cases P 69,624 ALASKA AIRLINES, INC.; Midway Airlines; Muse Air Corporation, Plaintiffs-Appellants, v. UNITED AIRLINES, INC., Defendant-Appellee. ALASKA AIRLINES, INC, Plaintiff, and Northwest Airlines, Inc., Plaintiff-Appellant, v. UNITED AIRLINES, INC., Defendant, and American Airlines, Inc., Defendant-Appellee. Nos. 90-55162, 90-55163. United States Court of Appeals, Ninth Circuit. Argued and Submitted April 5, 1991. Decided Oct. 29, 1991. Maxwell M. Blecher, Blecher & Collins, Los Angeles, Cal., for plaintiffs-appellants. Roberts B. Owen, Covington & Burling, Washington, D.C., Robert E. Cooper, Gibson, Dunn & Crutcher, Los Angeles, Cal., for defendants-appellees. Appeal from the United States District Court for the Central District of California. Before NORRIS, HALL and TROTT, Circuit Judges. CYNTHIA HOLCOMB HALL, Circuit Judge: 1 Alaska Airlines, Muse Air Corporation, Midway Airlines, Inc., and Northwest Airlines, Inc. (collectively "plaintiffs") brought suit against their two largest competitors, United Airlines and American Airlines (collectively "defendants"), alleging that defendants had individually violated the…