Detroit (DTW) to Green Bay (GRB): On-Time Performance
Data through May 2026
The calendar drives reliability on DTW–GRB. September 2024 flights landed on schedule 90% of the time, but December 2025 dropped to 54% — a gap of 36 points. Across the full period the route averages 73% on-time against a national 78%. Morning departures also hold up better than evening ones (79% vs 71%), which matters most in the rough months.
- On-time
- 73%
- arrived <15 min late
- Avg delay
- 24 min
- completed flights
- Cancelled
- 1.3%
- Flights/day
- 2.2
- last 12 months
- Duration
- 1h 22m
- scheduled
- Distance
- 287 mi
Best airline from DTW to GRB
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlinesmost reliable | 74% | 25 min | 1.2% | 1,540 |
| Delta Air Lines | 68% | 19 min | 1.6% | 186 |
Monthly on-time trend
Best time to fly from DTW to GRB
Aim for departures around 10 a.m. (79% on-time); avoid 3 p.m. departures (66%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 71% | 25 min |
| Tuesday | 75% | 22 min |
| Wednesday | 75% | 21 min |
| Thursday | 76% | 22 min |
| Friday | 70% | 30 min |
| Saturdaybest | 80% | 17 min |
| Sunday | 68% | 34 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft2%
- Airline operations72%
- National airspace system8%
- Weather18%
Frequently asked questions
- How often are flights from DTW to GRB delayed?
- 27% of DTW–GRB flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 24 minutes.
- Which airline is most reliable from DTW to GRB?
- SkyWest Airlines has the best on-time record on this route at 74%, based on 1,540 flights. 2 airlines flew DTW–GRB frequently enough to compare in this period.
- What is the best time of day to fly from DTW to GRB?
- Departures around 10 a.m. have the best record (79% on-time), while departures around 3 p.m. have the worst (66%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from DTW to GRB?
- The scheduled DTW–GRB flight time averages 1h 22m over 287 miles. Actual arrival times vary — flights on this route land 15+ minutes late 27% of the time.
- How often are DTW to GRB flights cancelled?
- 1.3% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from DTW to GRB?
- December 2025 was the roughest month in this dataset, with only 54% of arrivals on time. The best was September 2024 at 90%. If your dates are flexible, that 36-point gap is worth planning around.
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Based on 1,727 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.