Southwest Airlines will launch daily nonstop flights from Ontario International Airport to Honolulu starting June 4, 2026, offering Southern California residents a smoother, more convenient way to reach Hawaii. Operated on Boeing 737 MAX 8 aircraft with modern amenities, the service enhances comfort, connectivity, and affordability. This new route strengthens Ontario Airport’s growing role as a key travel hub, making tropical getaways easier for both leisure and business travelers.