$159 Cheap Delta flights Atlanta (ATL) to Tri-Cities (TRI)

You can discover affordable round-trip Delta Air Lines flights from $219 from ATL to TRI by filtering your results from "Price (lowest to highest)" on Expedia. Or search for deals from $159 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 cheap Delta Air Lines flights from Hartsfield-Jackson Atlanta Intl. Airport (ATL) to Tri-Cities Regional Airport (TRI) one to three months prior to your departure date. 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. No matter the fare type and itinerary, the best day to book a domestic flight is generally Sunday and the most expensive tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book 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 TRI with Delta Air Lines leaves at 8:37AM UTC-5. You'll touch down at 9:48AM UTC-5. The last Delta Air Lines flight of the day leaves at 9:20PM UTC-5 and arrives at 10:29PM UTC-5. With around 20% fewer cancellations for departures before noon, heading out early is typically the best option.**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.

Heading from ATL to TRI with Delta Air Lines comes with a host of benefits, including a rewarding loyalty program and an excellent in-flight experience. Plus, when you book through Expedia, One Key™ members can earn OneKeyCash™* to use on select future travel purchases. That's on top of the Delta SkyMiles points you can earn with Delta Air Lines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.