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!
Absolutely. Interest in Ontario is peaking, with many travelers taking advantage of the $259 round-trip deals we've recently indexed.
In the event of a disruption, the airline is responsible for re-accommodating you. Our team is also available to help you navigate your options.
For maximum savings, we recommend comparing various departure times. Often, an early morning or late-night flight can secure a much lower price than a midday trip.
Flexibility is key. Our engine allows you to compare last-minute availability across all 8 routes to find the absolute lowest remaining fare.
With our streamlined checkout, you can go from searching 8 deals to a confirmed booking for Ontario in just a few clicks.
Check in online via the airline's website or mobile app 24 hours before departure using the booking reference provided in your confirmation.
Searching across various carriers on our platform is the most reliable method to secure the $259 lead-in price for your trip to Ontario.
We suggest adding travel protection to your booking. It ensures you are covered for a variety of travel-related risks and delays.