SPIRIT AIRLINES, INC. Pass Through Certificates, Series 2017-1 UNDERWRITING AGREEMENTUnderwriting Agreement • November 15th, 2017 • Spirit Airlines, Inc. • Air transportation, scheduled • New York
Spirit Airlines, Inc., a Delaware corporation (the “Company”), proposes that Wilmington Trust, National Association (“Wilmington Trust”), acting not in its individual capacity but solely as pass through trustee (the “Trustee”) under the Pass Through Trust Agreement, dated as of August 11, 2015 (the “Basic Agreement”), and supplemented by the Class AA Trust Supplement, the Class A Trust Supplement and the Class B Trust Supplement (each as defined below), between the Company and the Trustee, issue and sell to the Underwriters named in Schedule I hereto (each, an “Underwriter” and, collectively, the “Underwriters”), the Spirit Airlines Pass Through Certificates, Series 2017-1-AA (the “Class AA Certificates”), the Spirit Airlines Pass Through Certificates, Series 2017-1-A (the “Class A Certificates”), and the Spirit Airlines Pass Through Certificates, Series 2017-1-B (the “Class B Certificates” and, together with the Class AA Certificates and the Class A Certificates, the “Certificates”) i
