Ontario International Airport Sees Steady April Traffic, 3% Year-to-Date Growth
Event summary
- Ontario International Airport (ONT) reported 574,504 passengers in April 2026, a slight 0.2% decrease from April 2025.
- Year-to-date passenger volumes increased by 2.9%, with international travelers up 56.9% compared to 2025.
- Cargo tonnage rose 5.3% in April and 8.1% year-to-date, driven by a 10.2% increase in freight.
- Southwest Airlines held the largest passenger share at 37.4% in April.
- ONT claims to be the fastest-growing of the 10 largest airports in California since the pandemic.
The big picture
Ontario International Airport's steady performance in April, despite industry volatility, underscores its resilience as a regional hub. The airport's significant growth in international travel and cargo tonnage reflects broader trends in post-pandemic aviation recovery and the increasing importance of logistics in Southern California. ONT's claim as the fastest-growing among California's largest airports positions it as a key player in the state's aviation sector.
What we're watching
- International Growth
- Whether ONT can sustain its 56.9% year-to-date increase in international travelers amid global travel volatility.
- Cargo Dynamics
- The pace at which freight growth will continue, given the 12% year-to-date increase in cargo tonnage.
- Competitive Positioning
- How ONT's strategic location and modern facilities will affect its standing as a Southern California gateway.
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