Best Time to Fly ATL to GRR: On-Time Stats by Hour & Airline
Hartsfield-Jackson Atlanta International → Gerald R. Ford International
Data through July 2026 · Last updated October 18, 2026
1,426 flights were scheduled from Atlanta (ATL) to Grand Rapids (GRR) in the last 12 months, and 83.4% of those that flew arrived on time, 5.8 points above the US average of 77.6%.
Delta Air Lines was the most punctual of the 2 airlines on the route at 83.8%, while Frontier Airlines trailed at 70.7%.
October has been the best month (92% on time) and Sunday the weakest day of the week (79%).
1.5% of flights were cancelled, versus 1.8% nationally.
ATL to GRR 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 | 83.8% | 62 min | 1.4% | 1,384 |
| Frontier Airlines | 70.7% | 98 min | 2.4% | 42 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly ATL to GRR
On-time arrival % by scheduled departure hour (local time), 2,825 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 6am–7am | Limited data | 1 | |
| 7am–8am | Limited data | 4 | |
| 8am–9am | Limited data | 2 | |
| 9am–10am | 88.2% | 1.1% | 572 |
| 10am–11am | 89.0% | 2.5% | 196 |
| 11am–12pm | Limited data | 7 | |
| 1pm–2pm | 87.3% | 0.0% | 181 |
| 2pm–3pm | 85.2% | 1.3% | 302 |
| 3pm–4pm | 80.3% | 0.4% | 229 |
| 4pm–5pm | 83.7% | 0.7% | 142 |
| 5pm–6pm | 81.3% | 0.9% | 108 |
| 6pm–7pm | 83.6% | 0.9% | 111 |
| 7pm–8pm | 74.8% | 0.9% | 214 |
| 8pm–9pm | Limited data | 28 | |
| 9pm–10pm | 79.0% | 1.0% | 695 |
| 10pm–11pm | 71.9% | 3.0% | 33 |
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 GRR
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) | 81.5% | -3.3 pts | 0.0% | 54 |
| Christmas & New Year (Dec 20 - Jan 3) | 79.8% | -5.0 pts | 2.7% | 112 |
| Summer peak (Jun 15 - Aug 15) | 76.3% | -8.4 pts | 1.8% | 492 |
| All other days | 84.8% | — | 0.8% | 2,167 |
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).