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Route Reliability

GRB → Detroit

GRB–DTW · 287 miles · GRB Airport to Detroit Metropolitan Wayne County Airport

83
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
6 min
Average arrival delay
1.8%
Cancelled
1,082
Flights in the data

Data through May 2026.

Delta Air Lines is the only airline in this data on this route, arriving on time 83% of the time across 1,082 flights. No comparison to make.

What the data says

Morning-you made the right choice.

GRB–DTW flights departing between 6–9 AM arrived on time 89% of the time, versus 76% between 6–9 PM.

Tuesday has been the better bet.

A small edge: 86% on time on Tuesdays against 80% on Saturdays.

Best historical flights

Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.

Top flights by on-time rate

More flights on this route

The breakdown

On-time by weekday
  • Mon84%(149 flights)
  • Tue86%(153 flights)
  • Wed81%(152 flights)
  • Thu86%(151 flights)
  • Fri81%(151 flights)
  • Sat80%(150 flights)
  • Sun84%(153 flights)
On-time by departure window
  • 6–9 AM89%(359 flights)
  • 9 AM–12 PM80%(355 flights)
  • 12–3 PM—(4 flights)
  • 3–6 PM81%(316 flights)
  • 6–9 PM76%(25 flights)
On-time trend by month
83%
May

Jun 89% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202589%85
July 202588%85
August 202591%91
September 202596%91
October 202591%96
November 202583%83
December 202572%86
January 202670%90
February 202685%84
March 202669%86
April 202680%90
May 202683%92

Keep nerding

Based on 1,082 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.