DALLAS (AP) - Southwest Airlines is defending a $120 million payment for two gates at Dallas Love Field, saying the deal was legal and cheaper than the price of access at other airports.

DALLAS (AP) Southwest Airlines is defending a $120 million payment for two gates at Dallas Love Field, saying the deal was legal and cheaper than the price of access at other airports.

The payment to United Airlines is emerging as a key issue in a fight between Southwest and Delta Air Lines, which is trying to keep a toehold at the Southwest-dominated airport.

A federal judge heard three days of testimony and will decide whether Delta gets to stay at the airport by using a Southwest gate. The judge indicated Wednesday that he could rule in about a week. The loser is likely to appeal, and a jury trial is possible.