$129 Cheap Delta flights Ontario (ONT) to West Palm Beach (PBI)

Use the “Price (lowest to highest)” filter on Expedia to search for cheap Delta Air Lines round-trip flights from $285 from ONT to PBI. Affordable one-way options from $129 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.

Delta Air Lines flights to West Palm Beach are generally more affordable in the quieter months of September and June. Whether you need a one-way or round-trip ticket, you could land a better deal then.

Begin your search one to three months ahead of your departure date to find cheaper fares on Delta Air Lines flights from Los Angeles - Ontario Intl. Airport (ONT) to Palm Beach Intl. Airport (PBI). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also reduce costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Time it well, and you can enjoy significant savings on domestic journeys.*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.

Click on our “Nonstop” filter when searching for direct Delta Air Lines flights from ONT to PBI. You can also compare other airlines servicing the same nonstop route.

Sort your results by “Early Morning” and “Morning” to browse the earliest departures from ONT to PBI. Taking off early means you’re 20% less likely to experience 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.

Palm Beach Intl. Airport (PBI) is the primary West Palm Beach hub for Delta Air Lines flights from Los Angeles - Ontario Intl. Airport (ONT).

Offering an excellent in-flight experience and a rewarding loyalty program, Delta Air Lines is a top choice for many passengers flying from ONT to PBI. Also, 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 can be spent on future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on your fare type, a fee is typically charged if you modify or cancel your booking more than 24 hours after it’s confirmed. To find flexible fares, select our “No cancel fee” or “Changes included” filter while looking for flights. For more details on modifying or canceling your reservation, head to “Trips,” select your flight and click on “Manage Booking.”