Aerospace Engineering in Illinois

📊 Employment Overview

Illinois employs 2,470 aerospace engineering professionals, representing approximately 3.1% of the national workforce in this field. Illinois ranks #7 nationally for aerospace engineering employment.

💰 Salary Information

Aerospace Engineering professionals in Illinois earn competitive salaries across all experience levels, with an average annual salary of $122,000.

Note: Salaries are adjusted for cost of living and local market conditions. Data based on BLS statistics and industry surveys (2024-2025).

🎓 Schools Offering Aerospace Engineering

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🚀 Career Insights

Key information for aerospace engineering professionals in Illinois.

🏢 Industry Landscape & Top Employers

Illinois ranks #7 nationally in aerospace engineering — 2,470 engineers earning an average of $122,000 — with a market anchored by Boeing's corporate headquarters, one of the world's most important aerospace research laboratories, and a dense cluster of aviation electronics and systems companies that make Chicago's O'Hare corridor one of the more significant aerospace engineering employment zones in the Midwest. Illinois's aerospace engineering community works across commercial aviation manufacturing support, military aircraft systems, and advanced research in propulsion and aerodynamics.

Major Employers: Boeing's corporate headquarters (Arlington, Virginia — moved from Chicago in 2022, but Boeing's Chicago-area engineering operations remain substantial) maintains engineering and supply chain operations in the Chicago area that employ aerospace engineers for commercial and defense programs. United Airlines (Chicago) employs aerospace maintenance engineers for its extensive fleet, making O'Hare's maintenance operations one of the largest commercial aviation engineering workforces in the Midwest. Argonne National Laboratory (Lemont) conducts advanced propulsion research — including hypersonic aerothermodynamics, combustion science, and electric propulsion — employing aerospace engineers at the frontier of propulsion technology. Fermi National Accelerator Laboratory (Batavia) develops precision instrumentation and detector systems with aerospace engineering applications. Motorola Solutions (Chicago) develops communications systems used in aviation and defense applications. Collins Aerospace (formerly Rockwell Collins, Lisle/Burr Ridge operations) develops navigation systems, displays, and flight deck technology employing aerospace engineers for avionics product development. Sikorsky Aircraft (Stratford, CT parent but Illinois engineering programs), Bell (Fort Worth, TX parent), and various defense contractors maintain Illinois engineering presences for Midwest region program support. The Scott Air Force Base (Belleville, near St. Louis border) hosts Air Mobility Command headquarters, employing aerospace engineers for airlift doctrine and systems analysis. Gulfstream, Cessna, and business aviation companies have Midwest sales and support operations that employ technical engineering staff.

O'Hare Aviation Hub: Chicago O'Hare International Airport — one of the world's busiest — creates a substantial commercial aviation engineering ecosystem. United Airlines' maintenance base, American Airlines' significant O'Hare presence, and the airport's ground operations require ongoing aerospace engineering support for aircraft performance, maintenance planning, and fleet management. The concentration of airline operations in Chicago makes it a significant center for commercial aviation engineering that often goes unrecognized against Illinois's non-aviation economic identity.

📈 Career Growth & Pathways

Illinois's aerospace engineering careers offer advancement tracks in commercial aviation fleet management engineering, propulsion research at Argonne, defense systems at Collins Aerospace, and Air Mobility Command doctrine development — within the Midwest's largest metropolitan aerospace market.

Typical Career Trajectory:

• Junior Aerospace Engineer (0–2 years): $82,000–$106,000 — Entry at United Airlines engineering, Collins Aerospace, Argonne National Laboratory, or Boeing's remaining Illinois engineering operations. University of Illinois Urbana-Champaign (one of the top aerospace programs nationally) feeds directly into Illinois's major aerospace employers.
• Mid-Level Engineer (3–7 years): $106,000–$140,000 — Collins Aerospace avionics engineers with navigation system design expertise, Argonne propulsion researchers with hypersonic aerodynamics depth, and United Airlines senior maintenance engineers advance strongly. Air Mobility Command contractor engineers with airlift doctrine expertise build unique credentials.
• Senior Engineer (7–12 years): $140,000–$178,000 — Technical authority at Collins Aerospace on major avionics product lines, Argonne principal scientists leading propulsion research programs, or United Airlines chief maintenance engineers managing fleet-wide engineering programs.
• Principal/Fellow Engineer (12+ years): $178,000–$255,000+ — Collins Aerospace Distinguished Engineers, Argonne Laboratory Fellows, and Boeing senior program engineers represent Illinois's aerospace apex.

Collins Aerospace Navigation Systems: Collins Aerospace's Illinois operations develop navigation technology — including GPS receivers, inertial navigation systems, and integrated avionics suites — that flies on commercial airliners, military aircraft, and spacecraft worldwide. Engineers who develop deep navigation system design expertise at Collins build credentials recognized across the global avionics community.

💰 Salary vs. Cost of Living

Illinois's $122,000 average aerospace salary is the second-highest in this batch, reflecting Chicago's premium labor market. The city's cost of living is elevated but significantly below coastal markets, creating reasonable purchasing power for aerospace engineers.

Chicago Metro (O'Hare Area / Northern Suburbs): The primary aerospace employment center, with cost of living roughly 15–25% above the national average. Median home prices vary significantly by community — from $250,000 in outer suburbs to $600,000+ in desirable North Shore communities near Collins Aerospace campuses. Property taxes in Cook County and surrounding collar counties are among the highest nationally, adding $8,000–$15,000+ annually to homeownership costs beyond the purchase price.

Belleville / St. Louis Metro (Scott AFB): Dramatically more affordable — cost of living near or below the national average, with median homes of $180,000–$290,000. Aerospace engineers at Scott AFB and supporting contractors achieve strong purchasing power in the Illinois-Missouri border region.

Tax Note: Illinois's flat 4.95% income tax is moderate, but very high property taxes in the Chicago area add meaningfully to the overall cost burden. Engineers in suburban Chicago should carefully model property tax costs when evaluating homeownership decisions. Engineers in downstate Illinois (Argonne, Scott AFB) face a more favorable overall cost environment.

📜 Licensing & Professional Development

Illinois's aerospace professional development reflects its commercial aviation, avionics, propulsion research, and Air Mobility Command sectors — with FAA certification expertise, Argonne research credentials, and Collins Aerospace avionics qualifications being the most career-relevant.

The Illinois Department of Financial and Professional Regulation (IDFPR) administers PE licensure via the standard pathway.

High-Value Credentials in Illinois's Aerospace Market:

• FAA Part 121 Engineering / Continued Airworthiness (United Airlines): For airline maintenance engineers, deep familiarity with FAA Part 121 continued airworthiness requirements, airline maintenance programs, and the engineering substantiation required for major repairs and alterations is foundational. United Airlines' engineering team develops expertise in managing large, diverse fleets across multiple aircraft types — valuable across every major airline worldwide.
• DO-178C / DO-254 Navigation Systems (Collins Aerospace): For Collins engineers developing avionics software and hardware, aviation design assurance standards for safety-critical navigation systems are mandatory credentials. Collins's navigation products must meet the highest design assurance levels for catastrophic failure conditions — making their certification processes among the most rigorous in commercial avionics.
• AIAA Propulsion and Energy (Argonne): For Argonne propulsion researchers, active participation in AIAA's propulsion community — through technical papers on hypersonic aerothermodynamics, scramjet combustion, or electric propulsion — builds professional standing alongside classified research contributions. Argonne researchers regularly publish in top-tier aerospace journals and contribute to the global propulsion knowledge base.
• Air Mobility Command Doctrine (Scott AFB): For Scott AFB contractor aerospace engineers, deep familiarity with AMC's airlift and air refueling doctrine, fleet utilization modeling, and strategic mobility planning creates a uniquely military logistics aerospace credential valued in defense analysis and planning organizations.

Education: University of Illinois Urbana-Champaign (UIUC — consistently top-5 aerospace nationally) is the premier program, with world-class aerodynamics and propulsion research directly connected to Illinois's industry. Illinois Institute of Technology (Chicago) provides an additional strong pathway with urban industry connections. Northwestern University adds elite research engineering capacity.

📊 Job Market Outlook

Illinois's aerospace market is expected to grow modestly, with commercial aviation recovery driving United Airlines engineering growth, Collins Aerospace's avionics product pipeline, and Argonne's expanding research mission providing sustained demand.

Commercial Aviation Fleet Renewal: United Airlines' fleet renewal program — replacing older 757s and 767s with Boeing 787s and 737 MAXs, and evaluating new narrowbody options — creates engineering demand for fleet transition planning, maintenance program development, and avionics modification engineering. Each new aircraft type entering service requires months of engineering work to integrate into the airline's maintenance program.

Collins Aerospace Next-Generation Navigation: Collins Aerospace is developing next-generation navigation systems — including multi-constellation GNSS receivers, quantum inertial navigation sensors, and resilient navigation for GPS-denied environments — that will define avionics technology for the next generation of commercial and military aircraft. Illinois engineers at Collins are at the forefront of these development programs.

Argonne Advanced Propulsion Research: Argonne National Laboratory's propulsion research portfolio is expanding — with federal investment in hypersonic vehicle aerothermodynamics, electric aviation propulsion, and hydrogen combustion for sustainable aviation growing proportionally with national interest in these technologies. Illinois-based Argonne engineers are contributing foundational research that will eventually shape operational aerospace systems.

Air Mobility Modernization: Scott AFB's role as Air Mobility Command headquarters means Illinois's defense aerospace community will be involved in every major airlift modernization decision — including the KC-Y tanker competition (potential replacement for KC-135), C-130 recapitalization planning, and C-17 fleet management. These programs sustain contractor engineering employment in the Belleville area for years.

🕐 Day in the Life

Aerospace engineering in Illinois ranges from managing the maintenance programs for one of America's largest airline fleets to developing the navigation systems that guide aircraft worldwide to researching the propulsion technology that will define the next generation of high-speed flight — within a state whose world-class city, diverse industrial economy, and Great Lakes access create a genuinely rich professional and personal life.

At United Airlines Engineering (O'Hare): Fleet maintenance engineers managing 787 Dreamliner operations develop engineering dispositions for in-service anomalies, review Boeing service bulletins for mandatory and recommended incorporation, and prepare engineering orders that govern how mechanics will address specific maintenance requirements across the fleet. The scale of United's operation — hundreds of aircraft flying millions of passengers — means that engineering decisions have immediate, measurable operational impact. When an engineering analysis allows a fleet to remain in service through a maintenance interval rather than requiring unscheduled groundings, the operational and financial significance is directly observable.

At Collins Aerospace (Lisle): Navigation systems engineers develop GPS/INS integrated navigation solutions for commercial and military aircraft. A day might involve analyzing pseudorange residuals from a new multi-constellation GNSS receiver design in a signal-in-space simulation, reviewing DO-178C compliance evidence for a navigation mode transition logic update, or participating in a pilot-in-the-loop evaluation of a new flight deck display for navigation situation awareness. The products being developed in Lisle eventually fly in cockpits on six continents — creating a global reach for Illinois aerospace engineering that its inland location might not suggest.

Lifestyle: Chicago is simply one of America's greatest cities — the Art Institute, Chicago Symphony Orchestra, a restaurant scene of world-class diversity (more Michelin-starred restaurants than any other US city), professional sports in every major league, and the lakefront's summer energy create a cultural and recreational richness matched by few peers. The Illinois aerospace employment centers are distributed across the metro's suburbs, with most engineers commuting 30–50 minutes from communities that offer genuinely good schools, manageable housing costs, and community character. The winters are genuinely cold — Chicago's wind chill can be brutal — but the spring and summer seasons are magnificent, and Illinois engineers tend to embrace the seasonal variety with the resigned enthusiasm of Midwesterners who have learned to love every season for what it offers.

🔄 Compare with Other States

See how Illinois compares to other top states for aerospace engineering: