Grand Rapids (GRR) to Atlanta (ATL): On-Time Performance
Data through July 2026
The calendar drives reliability on GRR–ATL. October 2024 flights landed on schedule 97% of the time, but January 2026 dropped to 69% — a gap of 28 points. Across the full period the route averages 87% on-time against a national 78%.
- On-time
- 87%
- arrived <15 min late
- Avg delay
- 10 min
- completed flights
- Cancelled
- 1.3%
- Flights/day
- 3.9
- last 12 months
- Duration
- 2h 5m
- scheduled
- Distance
- 640 mi
Best airline from GRR to ATL
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Delta Air Linesmost reliable | 87% | 10 min | 1.3% | 2,863 |
| Frontier Airlines | 66% | 26 min | 2.2% | 90 |
Monthly on-time trend
Best time to fly from GRR to ATL
Aim for departures around 6 a.m. (91% on-time); avoid 6 p.m. departures (82%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Mondaybest | 88% | 13 min |
| Tuesday | 87% | 9 min |
| Wednesday | 87% | 9 min |
| Thursday | 86% | 7 min |
| Friday | 87% | 10 min |
| Saturday | 88% | 10 min |
| Sunday | 83% | 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 aircraft28%
- Airline operations48%
- National airspace system20%
- Weather4%
Frequently asked questions
- How often are flights from GRR to ATL delayed?
- 14% of GRR–ATL 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 10 minutes.
- Which airline is most reliable from GRR to ATL?
- Delta Air Lines has the best on-time record on this route at 87%, based on 2,863 flights. 2 airlines flew GRR–ATL frequently enough to compare in this period.
- What is the best time of day to fly from GRR to ATL?
- Departures around 6 a.m. have the best record (91% on-time), while departures around 6 p.m. have the worst (82%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from GRR to ATL?
- The scheduled GRR–ATL flight time averages 2h 5m over 640 miles. Actual arrival times vary — flights on this route land 15+ minutes late 14% of the time.
- How often are GRR to ATL flights cancelled?
- 1.3% 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 GRR to ATL?
- January 2026 was the roughest month in this dataset, with only 69% of arrivals on time. The best was October 2024 at 97%. If your dates are flexible, that 28-point gap is worth planning around.
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Based on 2,953 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.