Atlanta (ATL) to Dallas (DAL): On-Time Performance
Data through July 2026
The calendar drives reliability on ATL–DAL. October 2024 flights landed on schedule 90% of the time, but June 2025 dropped to 65% — a gap of 25 points. Across the full period the route averages 79% on-time against a national 78%. Morning departures also hold up better than evening ones (89% vs 69%), which matters most in the rough months.
- On-time
- 79%
- arrived <15 min late
- Avg delay
- 13 min
- completed flights
- Cancelled
- 1.6%
- Flights/day
- 9.2
- last 12 months
- Duration
- 2h 15m
- scheduled
- Distance
- 721 mi
Best airline from ATL to DAL
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Linesmost reliable | 82% | 13 min | 1.8% | 3,909 |
| Southwest Airlines | 77% | 14 min | 1.4% | 3,310 |
Monthly on-time trend
Best time to fly from ATL to DAL
Aim for departures around 6 a.m. (95% on-time); avoid 5 p.m. departures (63%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 79% | 14 min |
| Tuesday | 81% | 12 min |
| Wednesdaybest | 84% | 9 min |
| Thursday | 80% | 12 min |
| Friday | 79% | 16 min |
| Saturday | 79% | 14 min |
| Sunday | 73% | 16 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft38%
- Airline operations38%
- National airspace system20%
- Weather4%
Frequently asked questions
- How often are flights from ATL to DAL delayed?
- 21% of ATL–DAL 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 13 minutes.
- Which airline is most reliable from ATL to DAL?
- Delta Air Lines has the best on-time record on this route at 82%, based on 3,909 flights. 2 airlines flew ATL–DAL frequently enough to compare in this period.
- What is the best time of day to fly from ATL to DAL?
- Departures around 6 a.m. have the best record (95% on-time), while departures around 5 p.m. have the worst (63%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ATL to DAL?
- The scheduled ATL–DAL flight time averages 2h 15m over 721 miles. Actual arrival times vary — flights on this route land 15+ minutes late 21% of the time.
- How often are ATL to DAL flights cancelled?
- 1.6% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from ATL to DAL?
- June 2025 was the roughest month in this dataset, with only 65% of arrivals on time. The best was October 2024 at 90%. If your dates are flexible, that 25-point gap is worth planning around.
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Based on 7,219 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.