Aviation Capital Group Leases 13 Boeing 737-10s to WestJet

Strategic Expansion of the 737-10 Fleet

Aviation Capital Group (ACG) has finalized long-term lease agreements with WestJet to provide thirteen new Boeing 737-10 aircraft. This deal marks a significant expansion of the Canadian carrier’s narrowbody fleet, leveraging the largest variant of the Boeing 737 MAX family. The agreement is designed to support WestJet in its ongoing fleet renewal efforts, allowing the airline to scale operations to meet passenger demand while maintaining cost efficiency.

The Role of High-Capacity Narrowbodies

For WestJet, the addition of thirteen Boeing 737-10 jets represents a strategic shift toward higher-capacity, lower-unit-cost aircraft. According to technical data, the Boeing 737-10 offers approximately 20% more revenue potential and 20% lower fuel burn per seat compared to older-generation aircraft. The aircraft can seat up to 230 passengers and possesses a maximum range of 3,100 nautical miles, making it an efficient tool for the airline’s network requirements.

Thomas Baker, CEO and President of Aviation Capital Group, noted that the partnership underscores a shared commitment to the program, with the two companies holding a combined total of over 140 Boeing 737-10 aircraft on order. Mike Scott, CFO of WestJet Group, emphasized that the lease provides the airline with essential flexibility as it scales to meet guest demand, ensuring long-term operational reliability.

Market Demand and Regulatory Milestones

The Boeing 737-10 program has accumulated more than 1,400 orders to date, representing 30% of the entire 737 MAX order backlog. Despite this strong commercial interest, the aircraft is currently awaiting final type certification from the Federal Aviation Administration (FAA). This regulatory process is a prerequisite for the first deliveries to begin. While industry analysts have noted that continued delays in the FAA certification process pose operational risks to airlines planning for these deliveries, the current timeline anticipates completion later in 2026.

Historical Context and Fleet Modernization

This lease agreement builds upon a strong existing relationship between the parties. In September 2022, WestJet placed a direct order for 42 Boeing 737-10 aircraft, signaling its long-term strategy to modernize its fleet with the largest MAX variant. Aviation Capital Group has similarly bolstered its own portfolio, including an order for 25 737-10s placed in January 2026, which brought its total MAX orderbook to 121 aircraft. This pipeline allows lessors to provide carriers with necessary capacity, effectively bypassing some of the direct manufacturer backlog constraints.

Boeing 737-10 vs. Boeing 737-8: Key Specifications

FAA Certification Timeline

The delivery of the thirteen aircraft is expected to commence following the receipt of FAA type certification. Current industry expectations point to the certification process concluding in late 2026. Once the regulatory hurdle is cleared, Aviation Capital Group will begin the phased delivery of these units to WestJet, supporting the airline's growth trajectory through 2027.

Why This Matters for Capacity Growth

For WestJet, this agreement secures high-capacity assets without the immediate requirement for significant upfront capital expenditure. It signals a broader industry trend where airlines utilize leasing partners to maintain fleet growth in a constrained manufacturing environment. For the Boeing 737-10 program, the deal serves as a crucial validation of market demand, reinforcing the aircraft's role in the future narrowbody landscape as carriers seek to maximize revenue potential per slot.