    <SEC-DOCUMENT>0001193125-18-246222-index.html : 20180810
    <SEC-HEADER>0001193125-18-246222.hdr.sgml : 20180810
    <ACCEPTANCE-DATETIME>20180810171517
    ACCESSION NUMBER:		0001193125-18-246222
    CONFORMED SUBMISSION TYPE:	424B4
    PUBLIC DOCUMENT COUNT:		4
    FILED AS OF DATE:		20180810
    DATE AS OF CHANGE:		20180810

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			MESA AIR GROUP INC
    		CENTRAL INDEX KEY:			0000810332
    		STANDARD INDUSTRIAL CLASSIFICATION:	AIR TRANSPORTATION, SCHEDULED [4512]
    		IRS NUMBER:				850302351
    		STATE OF INCORPORATION:			NV
    		FISCAL YEAR END:			0930

    	FILING VALUES:
    		FORM TYPE:		424B4
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	333-226173
    		FILM NUMBER:		181009700

    	BUSINESS ADDRESS:
    		STREET 1:		410 NORTH 44TH STREET
    		STREET 2:		SUITE 700
    		CITY:			PHOENIX
    		STATE:			AZ
    		ZIP:			85008
    		BUSINESS PHONE:		602.685.4000

    	MAIL ADDRESS:
    		STREET 1:		410 NORTH 44TH STREET
    		STREET 2:		SUITE 700
    		CITY:			PHOENIX
    		STATE:			AZ
    		ZIP:			85008

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	MESA AIRLINES INC
    		DATE OF NAME CHANGE:	19950426
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>424B4
    <SEQUENCE>1
    <FILENAME>d573709d424b4.htm
    <DESCRIPTION>424B4
    <TEXT>
    Document 1 - file: d573709d424b4.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>g573709g23v66.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: g573709g23v66.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g573709g78f37.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g573709g78f37.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>g573709g82j83.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: g573709g82j83.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>