American Airlines received the green light from the bankruptcy judge on Wednesday to buy new airplanes from Airbus and Boeing.
The judge also approved American's request to purchase engines for the planes as well.
"We are pleased to achieve this significant milestone in our restructuring related to our fleet plan," said American spokesman Sean Collins. "By receiving these approvals from the Court, we expect to continue to build the most modern, fuel-efficient fleet among U.S. network carriers in less than five years."
Earlier this month, American announced it had restructured its purchase agreements with the two aircraft manufacturers that gave the carrier more favorable terms. In July 2011, American unveiled its plans to purchase 460 aircraft over the next decade.