Flight prices fluctuate based on real-time availability. Use our search tool above to find the latest fares for your specific departure and return dates.
Search More Deals ↑Ontario International Airport (ONT) is the preferred alternative for travelers looking to avoid the heavy congestion of LAX. Located in the heart of the Inland Empire, ONT offers a modern and efficient environment just 35 miles east of downtown Los Angeles. Whether you are visiting for the world-class shopping at Ontario Mills, attending a convention, or heading to the nearby mountain resorts, finding cheap flights to Ontario is simple with the right planning. This guide provides essential tips and route information to help you secure the best ONT flight deals.
As one of the fastest-growing airports in the region, Ontario sees high competition among airlines, which often leads to lower fares for travelers. To land the best rates, aim to book your tickets at least 3 to 5 weeks in advance. For those traveling from Western hubs like Seattle, Denver, or Phoenix, carriers frequently offer promotional fares for midweek departures.
Pro Tip: Late spring and early fall are often the "sweet spot" months for Ontario travel. During these times, airfare averages are lower than the summer peak, and the weather is ideal for exploring regional parks and outdoor attractions.
Ontario is a central hub with a variety of local experiences that highlight the heritage and entertainment of the Inland Empire:
Ontario is served by every major domestic carrier, including Southwest, American, Delta, United, and Frontier. The airport offers frequent nonstop service to dozens of major hubs:
If you are exploring different parts of Southern California, comparing ONT with nearby regional airports can help you find the most convenient and cost-effective route:
At Flight2fly, we monitor real-time data to bring you the latest ONT flight deals. From flexible fare searches to last-minute discounts, our platform is designed to make your Southern California travel simple and affordable. Book your Ontario flight today and enjoy the convenience of the Inland Empire's premier gateway!
By comparing multiple airlines on Flight2fly, you can quickly scan the 8 available routes to find the most competitive rates.
We suggest adding travel protection to your booking. It ensures you are covered for a variety of travel-related risks and delays.
Groups traveling to Ontario can often unlock special pricing. Contact us with your flight details to see if we can beat our standard 8 public deals.
We specialize specifically in airfare rates to Ontario, allowing you to choose your preferred hotel separately for better pricing and flexibility.
Seat selection is available for most flights. While basic fares may assign seats at check-in, you can usually upgrade to a specific seat for a fee.
Yes, we use 256-bit SSL encryption to ensure your personal and payment information is protected throughout the entire transaction.
Flight2fly specializes in finding 'hidden' fares. Our current $210 offer for Ontario is a result of our advanced data-scraping technology.
Fares fluctuate based on seat supply and global demand. Since we found 8 deals recently, the cheapest seats tend to be claimed first.
