Atlanta (ATL) to Chattanooga (CHA): On-Time Performance
Data through July 2026
The calendar drives reliability on ATL–CHA. October 2024 flights landed on schedule 94% of the time, but June 2025 dropped to 56% — a gap of 38 points. Across the full period the route averages 81% on-time against a national 78%. Morning departures also hold up better than evening ones (88% vs 77%), which matters most in the rough months.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 14 min
- completed flights
- Cancelled
- 1.8%
- Flights/day
- 3.7
- last 12 months
- Duration
- 52m
- scheduled
- Distance
- 106 mi
Best airline from ATL to CHA
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Endeavor Airmost reliable | 85% | 10 min | 0.8% | 760 |
| Delta Air Lines | 81% | 14 min | 2.0% | 2,479 |
| SkyWest Airlines | 70% | 32 min | 2.3% | 303 |
Monthly on-time trend
Best time to fly from ATL to CHA
Aim for departures around 10 a.m. (92% on-time); avoid 11 p.m. departures (68%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 79% | 15 min |
| Tuesday | 83% | 13 min |
| Wednesdaybest | 86% | 12 min |
| Thursday | 82% | 12 min |
| Friday | 80% | 18 min |
| Saturday | 83% | 13 min |
| Sunday | 73% | 18 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft27%
- Airline operations48%
- National airspace system13%
- Weather11%
Frequently asked questions
- How often are flights from ATL to CHA delayed?
- 19% of ATL–CHA flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 14 minutes.
- Which airline is most reliable from ATL to CHA?
- Endeavor Air has the best on-time record on this route at 85%, based on 760 flights. 3 airlines flew ATL–CHA frequently enough to compare in this period.
- What is the best time of day to fly from ATL to CHA?
- Departures around 10 a.m. have the best record (92% on-time), while departures around 11 p.m. have the worst (68%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ATL to CHA?
- The scheduled ATL–CHA flight time averages 52m over 106 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are ATL to CHA flights cancelled?
- 1.8% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, slightly above the national rate of 1.6%.
- What is the worst month to fly from ATL to CHA?
- June 2025 was the roughest month in this dataset, with only 56% of arrivals on time. The best was October 2024 at 94%. If your dates are flexible, that 38-point gap is worth planning around.
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Based on 3,542 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.