Atlanta (ATL) to Hartford (BDL): On-Time Performance
Data through May 2026
Atlanta (ATL) to Hartford (BDL) effectively runs on two schedules. In September 2025, 92% of arrivals were on time; in July 2025 that fell to 58% — a 34-point seasonal swing. Across the full period the route averages 78% on-time against a national 78%. Morning departures also hold up better than evening ones (86% vs 73%), which matters most in the rough months.
- On-time
- 78%
- arrived <15 min late
- Avg delay
- 15 min
- completed flights
- Cancelled
- 1.6%
- Flights/day
- 6.4
- last 12 months
- Duration
- 2h 16m
- scheduled
- Distance
- 859 mi
Best airline from ATL to BDL
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Linesmost reliable | 78% | 15 min | 1.5% | 4,313 |
| Frontier Airlines | 71% | 23 min | 2.2% | 270 |
Monthly on-time trend
Best time to fly from ATL to BDL
Aim for departures around 7 a.m. (94% on-time); avoid 4 p.m. departures (67%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 74% | 16 min |
| Tuesday | 81% | 12 min |
| Wednesday | 81% | 12 min |
| Thursday | 82% | 12 min |
| Friday | 74% | 19 min |
| Saturdaybest | 82% | 15 min |
| Sunday | 72% | 20 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 operations51%
- National airspace system15%
- Weather8%
Frequently asked questions
- How often are flights from ATL to BDL delayed?
- 22% of ATL–BDL flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 15 minutes.
- Which airline is most reliable from ATL to BDL?
- Delta Air Lines has the best on-time record on this route at 78%, based on 4,313 flights. 2 airlines flew ATL–BDL frequently enough to compare in this period.
- What is the best time of day to fly from ATL to BDL?
- Departures around 7 a.m. have the best record (94% on-time), while departures around 4 p.m. have the worst (67%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ATL to BDL?
- The scheduled ATL–BDL flight time averages 2h 16m over 859 miles. Actual arrival times vary — flights on this route land 15+ minutes late 22% of the time.
- How often are ATL to BDL flights cancelled?
- 1.6% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from ATL to BDL?
- July 2025 was the roughest month in this dataset, with only 58% of arrivals on time. The best was September 2025 at 92%. If your dates are flexible, that 34-point gap is worth planning around.
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Based on 4,583 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.