Best Time to Fly ATL to BDL: On-Time Stats by Hour & Airline
Hartsfield-Jackson Atlanta International → Bradley International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 79.5% of Atlanta (ATL) to Hartford (BDL) flights arrived on time (2,318 scheduled flights). That is 1.8 points above the national average of 77.6%.
Among 2 airlines, Delta Air Lines led with 79.6% on time and Frontier Airlines was last with 76.5%.
Over 24 months, Wednesday was the most reliable day (83% on time) and July the worst month (59%).
The cancellation rate was 2.1% (US average 1.8%).
ATL to BDL on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Lines | 79.6% | 59 min | 2.1% | 2,214 |
| Frontier Airlines | 76.5% | 81 min | 1.9% | 104 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ATL to BDL
On-time arrival % by scheduled departure hour (local time), 4,601 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | Limited data | 16 | |
| 7am–8am | 93.5% | 0.0% | 31 |
| 8am–9am | 90.0% | 1.1% | 647 |
| 9am–10am | 77.0% | 1.4% | 141 |
| 10am–11am | 86.3% | 0.0% | 146 |
| 11am–12pm | 83.7% | 1.6% | 562 |
| 12pm–1pm | 74.0% | 1.4% | 74 |
| 1pm–2pm | 80.2% | 1.6% | 566 |
| 2pm–3pm | 76.5% | 1.9% | 156 |
| 3pm–4pm | 73.8% | 1.7% | 534 |
| 4pm–5pm | 65.8% | 0.0% | 73 |
| 5pm–6pm | 74.7% | 0.6% | 159 |
| 6pm–7pm | 75.0% | 0.9% | 339 |
| 7pm–8pm | 71.5% | 1.7% | 358 |
| 8pm–9pm | 68.6% | 1.0% | 103 |
| 9pm–10pm | 71.1% | 1.8% | 618 |
| 10pm–11pm | 77.9% | 1.3% | 78 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on ATL to BDL
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 75.6% | -5.9 pts | 0.0% | 90 |
| Christmas & New Year (Dec 20 - Jan 3) | 75.7% | -5.7 pts | 3.3% | 180 |
| Summer peak (Jun 15 - Aug 15) | 65.1% | -16.4 pts | 1.5% | 815 |
| All other days | 81.5% | — | 1.3% | 3,516 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).