$119 Cheap Delta flights Harlingen (HRL) to Atlanta (ATL)

You’ll find cheap return Delta Air Lines flights from $237 from HRL to ATL by sorting your results from “Price (lowest to highest)” on Expedia. Or search for options from $119 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 Atlanta in January or February. You could find cheaper fares with Delta Air Lines during these quieter months.

To find cheap Delta Air Lines fares from Valley Intl. Airport (HRL) to Hartsfield-Jackson Atlanta Intl. Airport (ATL), start searching one to three months before your intended departure. Reserving 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 affect the cost. Sunday is typically 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.

Use our “Nonstop” filter when browsing for direct Delta Air Lines flights from HRL to ATL. You’ll also be able to compare other carriers servicing the same direct route.

Find Delta Air Lines’s earliest flights from HRL to ATL by checking our “Morning” and “Early Morning” filters. Not only will you arrive at your destination sooner, early departures also have a 20% less chance of being canceled.**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 flights from Valley Intl. Airport (HRL) to Atlanta arrive at Hartsfield-Jackson Atlanta Intl. Airport (ATL). This is the main entry point to this city.

With a rewarding loyalty program and an excellent in-flight experience, Delta Air Lines is the leading choice for many passengers heading from HRL to ATL. Plus, 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 getaways.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on your ticket type, a fee is typically charged if you modify or cancel your booking more than 24 hours after confirmation. To secure plane tickets with more flexibility, select our “Changes included” and “No cancel fee” boxes when looking for flights. For more details on modifying or canceling your reservation, visit “Trips,” select your flight and click on “Manage Booking.”