$110 Cheap Frontier Airlines flights Orlando (MCO) to Ontario (ONT)

You can discover cheap return Frontier Airlines flights from $198 from MCO to ONT by organizing your results from “Price (lowest to highest)” on Expedia. Or search for bargains from $110 for a one-way trip.**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.

Look for return or one-way flights to Ontario in January or April. You could find a cheap fare with Frontier Airlines during these off-peak travel months.

For cheap Frontier Airlines fares from Orlando Intl. Airport (MCO) to Los Angeles - Ontario Intl. Airport (ONT), start searching one to three months before your intended departure. Securing 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 how much you pay. Sunday is typically the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your journey 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.

Simply enter your dates, press search and tick the “Nonstop” filter on Expedia to browse any direct flights from MCO to ONT with Frontier Airlines or other carriers.

To find the earliest departure from MCO to ONT with Frontier Airlines, sort your results by “Morning” and “Early Morning.” Choosing an early flight usually means cancellations are less likely.**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.

Frontier Airlines flights from Orlando Intl. Airport (MCO) to Ontario touch down at Los Angeles - Ontario Intl. Airport (ONT). This is the main gateway to this city.

A rewarding loyalty program and the ability to rack up points through Frontier Miles are the start of the reasons to leave from MCO to ONT with Frontier Airlines. Plus, when you join our One Key™ program, you can receive OneKeyCash™* alongside any airline loyalty program earnings. It’s yours to spend on your next adventure.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

It’s generally possible to change or cancel your flight, although additional charges may apply if you booked more than 24 hours ago. Need to keep your options open? Use Expedia’s “No cancel fee” and “Changes included” filters to find flights that won’t penalize you if you need to adjust your plans. To update your itinerary, visit “Trips,” select your flight and click on “Manage Booking” for more details.