$53 Cheap Frontier Airlines flights Atlanta (ATL) to Trenton (TTN)

You’ll discover affordable return Frontier Airlines flights from $106 from ATL to TTN by sorting your results from “Price (lowest to highest)” on Expedia. Or search for deals from $53 for a one-way journey.**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 round-trip or one-way flights to Trenton in February or January. You could find cheaper fares with Frontier Airlines during these quieter months.

To find cheap Frontier Airlines fares from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Mercer Airport (TTN), 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 influence the overall cost. Sunday is usually the most affordable, 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.

To see if there’s a direct route from ATL to TTN with Frontier Airlines or another carrier, check the “Nonstop” box when searching for flights.

To find the earliest departures from ATL to TTN with Frontier Airlines, sort your results by “Early Morning” and “Morning.” Booking an early flight generally means you’ll experience 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.

Catch a Frontier Airlines flight from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Trenton, and you’ll probably come in to Mercer Airport (TTN). This is the airline’s primary hub in this city.

Offering a rewarding loyalty program, Frontier Airlines is a popular choice for many travelers departing from ATL to TTN. Plus, if you’re a Frontier Miles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

You can usually cancel or modify your flight, although additional charges may apply if you made your booking more than 24 hours ago. Want to keep your options open? Apply the “Changes included” and “No cancel fee” filters to find flights that won’t charge you extra if you need to adjust your plans. To make changes, visit “Trips,” select your flight and click on “Manage Booking” for more information.