Historical on-time performance
Grand Rapids to Detroit
Flights on GRR–DTW arrive on time 76% of the time over the last 12 months.
based on 1,512 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesOn-time76%Medianon timep9085 minCancel1.1%Flights1,512
Why flights run late
Delay causes
- Airline69%
- Weather22%
- Air traffic (NAS)9%
- Late aircraft0%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather69%
- Air traffic (NAS)31%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 16 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly GRR → DTW
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 75% to 86% on time.
- Middays86% on time · p90 25 min · 1,008 flights
- Mornings85% on time · p90 25 min · 1,176 flights
- Afternoons80% on time · p90 55 min · 1,137 flights
- Evenings75% on time · p90 70 min · 1,153 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 78% to 85% on time.
- Saturdays85% on time · p90 25 min · 609 flights
- Wednesdays82% on time · p90 45 min · 635 flights
- Tuesdays82% on time · p90 35 min · 634 flights
- Thursdays82% on time · p90 40 min · 648 flights
- Sundays81% on time · p90 55 min · 651 flights
- Mondays79% on time · p90 55 min · 651 flights
- Fridays78% on time · p90 45 min · 647 flights
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