Detroit (DTW) to Grand Rapids (GRR): On-Time Performance
Data through July 2026
The calendar drives reliability on DTW–GRR. September 2025 flights landed on schedule 90% of the time, but December 2025 dropped to 46% — a gap of 44 points. Across the full period the route averages 75% on-time against a national 78%. Morning departures also hold up better than evening ones (80% vs 71%), which matters most in the rough months.
- On-time
- 75%
- arrived <15 min late
- Avg delay
- 22 min
- completed flights
- Cancelled
- 0.7%
- Flights/day
- 4.4
- last 12 months
- Duration
- 57m
- scheduled
- Distance
- 120 mi
Best airline from DTW to GRR
3 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| Republic Airwaysmost reliable | 92% | 6 min | 0.0% | 145 |
| SkyWest Airlines | 75% | 24 min | 0.6% | 2,628 |
| Delta Air Lines | 72% | 19 min | 1.4% | 345 |
Monthly on-time trend
Best time to fly from DTW to GRR
Aim for departures around 10 a.m. (96% on-time); avoid 10 p.m. departures (63%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 73% | 27 min |
| Tuesday | 76% | 23 min |
| Wednesday | 77% | 19 min |
| Thursday | 75% | 21 min |
| Friday | 72% | 24 min |
| Saturdaybest | 80% | 15 min |
| Sunday | 74% | 26 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft4%
- Airline operations70%
- National airspace system10%
- Weather17%
Frequently asked questions
- How often are flights from DTW to GRR delayed?
- 25% of DTW–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 22 minutes.
- Which airline is most reliable from DTW to GRR?
- Republic Airways has the best on-time record on this route at 92%, based on 145 flights. 3 airlines flew DTW–GRR frequently enough to compare in this period.
- What is the best time of day to fly from DTW to GRR?
- Departures around 10 a.m. have the best record (96% on-time), while departures around 10 p.m. have the worst (63%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DTW to GRR?
- The scheduled DTW–GRR flight time averages 57m over 120 miles. Actual arrival times vary — flights on this route land 15+ minutes late 25% of the time.
- How often are DTW to GRR flights cancelled?
- 0.7% 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 DTW to GRR?
- December 2025 was the roughest month in this dataset, with only 46% of arrivals on time. The best was September 2025 at 90%. If your dates are flexible, that 44-point gap is worth planning around.
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Based on 3,135 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.