$249 Cheap Delta flights Atlanta (ATL) to Allentown (ABE)

You can discover affordable return Delta Air Lines flights from $339 from ATL to ABE by filtering your results from "Price (lowest to highest)" on Expedia. Or look for deals from $249 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.

Search for affordable Delta Air Lines flights from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Lehigh Valley Intl. Airport (ABE) one to three months before your departure day. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and journey, the best day of the week to book a domestic flight is usually Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**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.

The first flight from ATL to ABE with Delta Air Lines departs at 10:35AM UTC-5. You'll touch down at 12:38PM UTC-5. The final Delta Air Lines flight of the day takes off at 8:40PM UTC-5 and arrives at 10:39PM UTC-5. With 20% fewer cancellations for departures before noon, jetting out early is generally the best way to go.**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.

With an excellent in-flight experience and a rewarding loyalty program, Delta Air Lines is a top choice for many passengers heading from ATL to ABE. Also, if you're a Delta SkyMiles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be used on future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.