<ACCESSION-NUMBER>0000902219-19-000471 <TYPE>SC 13G/A <PUBLIC-DOCUMENT-COUNT>1 <FILING-DATE>20191108 <DATE-OF-FILING-DATE-CHANGE>20191108 <SUBJECT-COMPANY> <COMPANY-DATA> <CONFORMED-NAME>Spirit Airlines, Inc. <CIK>0001498710 <ASSIGNED-SIC>4512 <IRS-NUMBER>381747023 <STATE-OF-INCORPORATION>DE <FISCAL-YEAR-END>1231 </COMPANY-DATA> <FILING-VALUES> <FORM-TYPE>SC 13G/A <ACT>34 <FILE-NUMBER>005-86262 <FILM-NUMBER>191202320 </FILING-VALUES> <BUSINESS-ADDRESS> <STREET1>2800 EXECUTIVE WAY <CITY>MIRAMAR <STATE>FL <ZIP>33025 <PHONE>954-447-7920 </BUSINESS-ADDRESS> <MAIL-ADDRESS> <STREET1>2800 EXECUTIVE WAY <CITY>MIRAMAR <STATE>FL <ZIP>33025 </MAIL-ADDRESS> </SUBJECT-COMPANY> <FILED-BY> <COMPANY-DATA> <CONFORMED-NAME>WELLINGTON MANAGEMENT GROUP LLP <CIK>0000902219 <ASSIGNED-SIC>0000 <IRS-NUMBER>042683227 <STATE-OF-INCORPORATION>MA <FISCAL-YEAR-END>1231 </COMPANY-DATA> <FILING-VALUES> <FORM-TYPE>SC 13G/A </FILING-VALUES> <BUSINESS-ADDRESS> <STREET1>C/O WELLINGTON MANAGEMENT COMPANY LLP <STREET2>280 CONGRESS STREET <CITY>BOSTON <STATE>MA <ZIP>02210 <PHONE>6179515000 </BUSINESS-ADDRESS> <MAIL-ADDRESS> <STREET1>C/O WELLINGTON MANAGEMENT COMPANY LLP <STREET2>280 CONGRESS STREET <CITY>BOSTON <STATE>MA <ZIP>02210 </MAIL-ADDRESS> <FORMER-COMPANY> <FORMER-CONFORMED-NAME>WELLINGTON MANAGEMENT CO LLP <DATE-CHANGED>19960930 </FORMER-COMPANY> <FORMER-COMPANY> <FORMER-CONFORMED-NAME>WELLINGTON MANAGEMENT CO <DATE-CHANGED>19930426 </FORMER-COMPANY> </FILED-BY>