$184 Cheap Delta flights Jacksonville (OAJ) to Ontario (ONT)

Finding cheap one-way Delta Air Lines flights from OAJ to ONT from $184 on Expedia couldn’t be simpler — just filter by “Price (lowest to highest).” Or check out our affordable return fares from $367 for your next exciting getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Delta Air Lines flights to Ontario are generally more affordable in the low-season months of January and April. Whether you’re in search of a round-trip or one-way ticket, you could score a better deal then.

Fill in your dates, hit search and check the “Nonstop” filter on Expedia to browse any direct flights from OAJ to ONT with Delta Air Lines or other carriers.

Find Delta Air Lines’s earliest flights from OAJ to ONT by checking our “Morning” and “Early Morning” filters. Not only will you arrive sooner, early departures also experience 20% fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Delta Air Lines flights from Albert J. Ellis Airport (OAJ) to Ontario come in to land at Los Angeles - Ontario Intl. Airport (ONT). This is the main entry point here.

Flying from OAJ to ONT with Delta Air Lines means enjoying a host of perks, including an excellent in-flight experience and a rewarding loyalty program. Plus, when booking through Expedia, One Key™ members can collect OneKeyCash™* to spend on select future travel purchases. That’s in addition to the Delta SkyMiles points you can earn with Delta Air Lines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are typically free within 24 hours of booking, but your airline may add a charge after that time. For more information about altering your reservation, go to your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to change your plans without extra charges, check the “Changes included” and “No cancel fee” filters when planning your next adventure.