NEW YORK (Standard&Poor's) Aug. 1, 2013--Standard&Poor's Ratings Services today assigned its preliminary 'A- (sf)' rating to United Airlines Inc.'s (United's) series 2013-1 Class A pass-through certificates with an expected maturity of Aug. 15, 2025, and its preliminary 'BB+ (sf)' rating to United's series 2013-1 Class B pass-through certificates with an expected maturity of Aug. 15, 2021. The final legal maturities will be 18 months after the expected maturity. United is issuing the certificates under a Rule 415 shelf registration. We will assign final ratings once we complete our legal and structural review. The preliminary 'A- (sf)' and 'BB+ (sf)' ratings are based on the credit quality of United's parent, United Continental Holdings Inc. (United Continental; B/Stable/--);
