Atlanta (ATL) to Grand Rapids (GRR): On-Time Performance
Data through July 2026
The calendar drives reliability on ATL–GRR. October 2024 flights landed on schedule 94% of the time, but June 2025 dropped to 66% — a gap of 28 points. Across the full period the route averages 83% on-time against a national 78%. Morning departures also hold up better than evening ones (88% vs 78%), which matters most in the rough months.
- On-time
- 83%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 1.4%
- Flights/day
- 3.9
- last 12 months
- Duration
- 1h 52m
- scheduled
- Distance
- 640 mi
Best airline from ATL to GRR
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Linesmost reliable | 83% | 12 min | 1.3% | 2,865 |
| Frontier Airlines | 69% | 23 min | 2.2% | 90 |
Monthly on-time trend
Best time to fly from ATL to GRR
Aim for departures around 10 a.m. (89% on-time); avoid 10 p.m. departures (73%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 83% | 12 min |
| Tuesday | 85% | 10 min |
| Wednesdaybest | 88% | 7 min |
| Thursday | 82% | 11 min |
| Friday | 80% | 16 min |
| Saturday | 83% | 14 min |
| Sunday | 78% | 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 aircraft27%
- Airline operations48%
- National airspace system16%
- Weather9%
Frequently asked questions
- How often are flights from ATL to GRR delayed?
- 17% of ATL–GRR 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 12 minutes.
- Which airline is most reliable from ATL to GRR?
- Delta Air Lines has the best on-time record on this route at 83%, based on 2,865 flights. 2 airlines flew ATL–GRR frequently enough to compare in this period.
- What is the best time of day to fly from ATL to GRR?
- Departures around 10 a.m. have the best record (89% on-time), while departures around 10 p.m. have the worst (73%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from ATL to GRR?
- The scheduled ATL–GRR flight time averages 1h 52m over 640 miles. Actual arrival times vary — flights on this route land 15+ minutes late 17% of the time.
- How often are ATL to GRR flights cancelled?
- 1.4% 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 GRR?
- June 2025 was the roughest month in this dataset, with only 66% of arrivals on time. The best was October 2024 at 94%. If your dates are flexible, that 28-point gap is worth planning around.
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Based on 2,955 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.