Regional jets undertake the pivotal role of connecting smaller markets and regions across the globe while offering airlines a high level of flexibility in route planning, long having made them a popular category of civil aircraft. Two standout aircraft in this sector that have dominated the market for decades are the Embraer ERJ 145 and the Bombardier CRJ200, both models supporting airlines worldwide with dependable performance. While these aircraft share similarities in size and mission profile, they differ in several ways that affect operational efficiency, passenger experience, and maintenance demands.