Ontario International Airport Hits 4M Passengers YTD, Cargo Volumes Rise 7%
Event summary
- Ontario International Airport (ONT) served 673,413 passengers in July 2026, with year-to-date volumes surpassing 4 million.
- International passenger volume grew 36.9% year-to-date, despite broader headwinds in U.S. international travel.
- Air cargo volumes increased 7% year-to-date, with freight tonnage up 10% compared to 2025.
- Southwest Airlines held the largest passenger share at 34.4% in July 2026.
The big picture
Ontario International Airport's strong year-to-date performance highlights its growing importance in Southern California's aviation landscape. The 36.9% increase in international passengers, despite broader travel headwinds, underscores the region's economic strength and ONT's strategic role as a global supply chain hub. The airport's ability to attract major airlines and maintain cargo growth positions it as a critical player in both passenger travel and logistics.
What we're watching
- Market Resilience
- Whether ONT can sustain international passenger growth amid broader U.S. travel challenges.
- Cargo Demand
- The pace at which air cargo volumes will grow as global supply chains adapt.
- Airline Partnerships
- How airline partnerships will evolve to support ONT's emergence as a key Southern California gateway.