Internal Auditing Intern (Summer 2027)

Internal Audit Intern  

Location: Denver, CO 
Internship dates: June 7–August 27, 2027 
Pay: $20.00–$24.50/hour based on class year 
Application deadline: April 16, 2027, at 11:59 p.m. MT 

Build real-world experience in internal audit 

As an Internal Audit Intern, you’ll work alongside experienced audit professionals on financial, operational and internal-controls compliance assignments. 

You’ll gain hands-on experience evaluating Frontier’s internal-control environment, documenting audit work, identifying potential issues and supporting efforts to strengthen business processes and controls. 

This internship also gives you the opportunity to work with business partners and key stakeholders across Frontier while developing practical experience in the internal-audit process.  

Why this internship matters 

Strong internal controls help organizations manage risk, maintain accurate financial processes and operate effectively. 

Your work will help Frontier evaluate how controls are designed and operating, identify areas that may require attention and support business teams as they address audit findings and improve processes. 

What you’ll do 

Evaluate internal controls 

• Prepare documentation supporting Frontier’s internal-control environment. 
• Evaluate and assess the design and operating effectiveness of internal controls. 
• Document audit procedures, results and conclusions. 
• Apply your understanding of financial reporting, application controls, IT general controls and audit processes to assigned work. 

Support audit findings and remediation 

• Identify and discuss potential audit findings with the Internal Audit team. 
• Document reportable issues and associated risk exposure. 
• Support management and process owners in maintaining efficient and effective internal controls. 
• Assist with efforts to remediate identified findings. 

Partner across the business 

• Build and maintain relationships with business partners and key stakeholders. 
• Participate in process audits, compliance initiatives and other company projects as needed. 
• Manage assigned projects and responsibilities independently while maintaining confidentiality. 

What you’ll bring 

• Current enrollment in a post-secondary educational institution. 
• At least two years of completed post-secondary education. 
• Major in Accounting or a related field. 
• Experience using Microsoft Office, including strong Excel skills. 
• Quantitative and analytical skills. 
• Strong written and verbal communication skills. 
• Strong attention to detail and organizational skills. 
• Ability to prioritize multiple assignments, work independently and take initiative. 
• Ability to maintain confidentiality. 
• Positive approach to learning and contributing as part of a team. 

Knowledge that will help you succeed 

• Application controls 
• IT general controls 
• Financial reporting concepts 
• Internal audit processes 
• External audit processes 

How you’ll work 
This internship is based in Denver, Colorado, in a typical office environment. You’ll work with experienced audit professionals while taking increasing ownership of assigned projects and responsibilities throughout the internship. 

Internship compensation 
Hourly pay is based on class year: 

Class year 

Hourly rate 

Freshman 

$20.00 

Sophomore 

$20.50 

Junior 

$21.50 

Senior 

$22.50 

Graduate Program 

$24.50 

 Support for work, life and travel 

Frontier offers benefits, programs and travel privileges designed to support eligible employees at work and beyond. Availability may vary by role, employment status, eligibility, location, schedule, applicable policies and current plan details. 

Depending on role and eligibility, available benefits and programs may include: 

• Medical, dental and vision coverage 
• 401(k) retirement savings options 
• Paid holidays, vacation time and sick time 
• Travel privileges on Frontier Airlines and participating partner airlines, based on current program rules and availability 
• Buddy passes, based on eligibility and program rules 
• Travel-related discounts and employee discounts on select products, services and vendors 
• Employee support programs and resources, including the HOPE League, Frontier Airlines’ nonprofit organization 

Working at Frontier Airlines 

At Frontier Airlines, our mission is to Make Every Flight Count. Whether you support flights, customers, aircraft or the teams behind the operation, your work helps deliver a safe, reliable and value-focused travel experience. 

Our work is guided by four core values: customer first, safety always, operational excellence and one team. 

About Frontier Airlines 

Frontier Airlines is a Denver-based airline serving destinations across the United States and select international markets. Our teams span flight crews, airport operations, aircraft maintenance, customer support, corporate functions and more. 

We focus on making travel accessible, practical and easy to personalize while supporting a safe, reliable and efficient airline operation. 

Workplace Policies 

At Frontier Airlines, we wholeheartedly support and have a strong commitment to Equal Employment Opportunity (EEO) and Affirmative Action. Frontier is committed to providing equal employment opportunities for all persons regardless of race, color, religion, gender, gender variance, sexual orientation, age, genetic information, marital status, national origin, citizenship status, disability, military, veteran status, and any other basis protected by federal, state, or local laws.  

Diversity is an essential part of our success. Our company flourishes because of the unique backgrounds, skills and ideas that our team members contribute every day. We salute and actively recruit veterans. Military experience is valuable and transferable to many of the positions essential to the operations of our airline.  

Frontier Airlines is a Zero Tolerance Drug-Free Workplace. All prospective DOT safety-sensitive employees are subject to pre-employment testing for the following drugs and their metabolites: Marijuana, Cocaine, Amphetamines, Opioids and Phencyclidine (PCP). Further, any DOT safety-sensitive job applicant who is found to have tested positive on any required drug or alcohol test at a former employer will be considered ineligible for employment with Frontier.  

Disclaimer: The above statements are intended only to describe the general nature and level of work required of the referenced position; they are not intended to be an exhaustive list of all responsibilities, duties, and skills required of individuals in this position. Please be advised that duties and expectations of this position may be subject to change.  

Colorado Residents: In any materials you submit, you may redact or remove age-identifying information such as age, date of birth, or dates of school attendance or graduation. You will not be penalized for redacting or removing this information.