Major Dellinger attended Pensacola Christian College in Pensacola, Florida from August 2004 to December 2007. During this time he attended Platoon Leaders Class Juniors and Seniors courses during the summers of 2006 and 2007.
Major Dellinger was commissioned in January 2008 and worked for the Officer Selection Station in Norman, Oklahoma until he began training at The Basic School in April 2008. Major Dellinger graduated from The Basic School in November 2008 and began flight training in Pensacola in January 2009. Following advanced flight training in Pensacola, Major Dellinger was selected to fly the UH-1Y Venom and subsequently completed the Fleet Replacement Squadron syllabus in Camp Pendleton, California in June 20011.
Major Dellinger reported to Marine Light Attack Helicopter Squadron (HMLA) 469 Vengeance in June 2011. At HMLA-469 he served as an S-5 Officer, and deployed in April 2012 in support of Operation Enduring Freedom (OEF) 12.1-12.2 where he flew 264 combat flight hours and earned five Strike/Flight Air Medals. With HMLA-469 he progressed through the flight syllabus serving as a squadron Functional Check Pilot and Section Leader. During his time at HMLA-469 Major Dellinger served as an Assistant S-5 Officer, UH NATOPS Officer, S-1 Assistant Officer in Charge, and Flight Equipment Officer in Charge (OIC). In November 2014 he deployed with Vengeance to Okinawa, Japan as part of the Unit Deployment Program (UDP).
After returning from the UDP Major Dellinger was assigned to Marine Aircraft Group 39 (MAG-39) as the S-5 OIC. While at MAG-39 Major Dellinger held numerous collateral billets and was awarded the Navy and Marine Corps Commendation Medal for his accomplishments as an officer and pilot at MAG-39 from November 2010 to March 2016.
In March 2016 Major Dellinger reported to Recruiting Station Orlando to serve as the Officer Selection Officer. During his time on recruiting duty Major Dellinger recruited and contracted an impressive 125 officer candidates achieving 139% of his assigned mission over three years. Major Dellinger was awarded the Navy and Marine Corps Achievement Medal for his accomplishments on recruiting duty.
In 2019 Major Dellinger was assigned to Task Force Anbar as the Deputy Commander. In March of 2020 the Anbar mission was canceled and Maj Dellinger was reassigned to the 13th Marine Expeditionary Unit (MEU) to serve as the Tactical Recovery of Aircraft and Personnel (TRAP) detachment OIC based in Djibouti, Africa. Major Dellinger was awarded the Navy and Marine Corps Commendation Medal for his service as the TRAP detachment OIC.
In March of 2021 Major Dellinger checked back in to HMLA-469 to begin the UH-1Y refresh syllabus and take over as the Director of Safety and NATOPS. After completing the UH-1Y refresh syllabus in June of 2021 Major Dellinger was transferred to Marine Medium Tiltrotor Squadron (VMM) 362, the Ugly Angels, to be the Executive Officer.