$279 Cheap Delta flights Atlanta (ATL) to Harrisburg (MDT)

You can find budget-friendly return Delta Air Lines flights from $399 from ATL to MDT by sorting your results from "Price (lowest to highest)" on Expedia. Or look for deals from $279 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.

Start searching one to three months ahead of your departure date to score cheap fares on Delta Air Lines flights from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Harrisburg Intl. Airport (MDT). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it's 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing spot on, and you can enjoy significant savings on domestic trips.*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 Delta Air Lines flight from ATL to MDT departs at 10:25AM UTC-5, arriving at 12:15PM UTC-5. If you'd like to head off later in the day, the last Delta Air Lines flight leaves ATL at 9:55PM UTC-5 and lands at MDT at 11:42PM UTC-5. Flying before midday is often a smart option as morning and mid-morning flights are least likely to face 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.

Delta Air Lines makes flying from ATL to MDT more enjoyable with an excellent in-flight experience and a rewarding loyalty program. You could even start earning points with Delta SkyMiles. Make sure you sign up to Expedia's free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.