$154 Cheap Delta flights Charlotte (CLT) to Ontario (ONT)

Make use of the “Price (lowest to highest)” filter on Expedia to search for cheap Delta Air Lines round-trip flights from $307 from CLT to ONT. Affordable one-way tickets from $154 are available too.**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.

January is one of the most affordable months to jet away to Ontario with Delta Air Lines. You could also find great prices on one-way and round-trip tickets in April.

To find cheap Delta Air Lines fares from Charlotte-Douglas Intl. Airport (CLT) to Los Angeles - Ontario Intl. Airport (ONT), start searching one to three months before your planned departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also impact the price you pay. Sunday tends to be the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your flight on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

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

Browse Delta Air Lines’s earliest flights from CLT to ONT by checking our “Early Morning” and “Morning” filters. Not only will you get to where you’re going 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.

Los Angeles - Ontario Intl. Airport (ONT) is the primary Ontario gateway for Delta Air Lines flights from Charlotte-Douglas Intl. Airport (CLT).

Offering a rewarding loyalty program and an excellent in-flight experience, Delta Air Lines is a top choice for many passengers heading from CLT to ONT. What’s more, if you’re a Delta SkyMiles and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which you can put toward future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the type of fare you purchased, a fee will generally apply if you modify or cancel your booking more than 24 hours after it’s been confirmed. To find flexible plane tickets, select our “No cancel fee” or “Changes included” filter when searching for flights. For more information on changing or canceling your reservation, visit “Trips,” select your flight and click on “Manage Booking.”