BTS DATA COMPLETE THROUGH JUNE 2026HISTORICAL ODDS · NOT LIVE FLIGHT STATUS
DelayOddsKnow the route before you book
GRB→DTW

Green Bay, WI (GRB) to Detroit, MI (DTW) flight delay odds

78.3% of 812 official scheduled GRB-to-DTW flights arrived on time; 14.8% arrived at least 30 minutes late and 2.1% were cancelled during July 2025–June 2026.

Source: U.S. Bureau of Transportation Statistics · Reporting window: July 2025–June 2026 · Updated September 16, 2026

HISTORICAL ROUTE SIGNALGenerally reliable
78.3%arrived on time
14.8%30+ min late
2.1%cancelled
812scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late10.7%all scheduled flights
120+ minutes late5.9%all scheduled flights
Diverted0.2%did not reach as scheduled
Average arrival+9.1 mincompleted flights

Which departure time was most reliable for GRB to DTW?

Among qualifying GRB-to-DTW departure window results, Early morning had the highest on-time rate: 85.1% of 269 flights. Late morning was lowest at 72.9% across 266 flights.

Departure windowFlightsOn time30+ minCancelled
Early morning26985.1%10.4%1.9%
Late morning26672.9%19.5%3.0%
Afternoon5174.5%19.6%2.0%
Evening22677.4%13.3%1.3%

Which weekday was most reliable for GRB to DTW?

Among qualifying GRB-to-DTW weekday results, Thursday had the highest on-time rate: 84.2% of 114 flights. Friday was lowest at 73.9% across 115 flights.

DayFlightsOn time30+ minCancelled
Monday12077.5%11.7%5.8%
Tuesday11882.2%15.3%1.7%
Wednesday11478.9%14.9%0.9%
Thursday11484.2%9.6%0.9%
Friday11573.9%20.0%1.7%
Saturday11675.9%16.4%0.9%
Sunday11575.7%15.7%2.6%

Which airline was most reliable for GRB to DTW?

Among qualifying GRB-to-DTW airline results, Delta Air Lines had the highest on-time rate: 79.1% of 187 flights. SkyWest Airlines was lowest at 78.1% across 625 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines62578.1%15.4%2.2%
Delta Air Lines18779.1%12.8%1.6%

Which month was most reliable for GRB to DTW?

Among qualifying GRB-to-DTW month results, June 2026 had the highest on-time rate: 97.1% of 68 flights. March 2026 was lowest at 62.2% across 90 flights.

MonthFlightsOn time30+ minCancelled
September 20252495.8%0.0%0.0%
October 20258488.1%8.3%0.0%
November 20258877.3%14.8%6.8%
December 20259068.9%24.4%4.4%
January 20268867.0%21.6%0.0%
February 20268184.0%11.1%0.0%
March 20269062.2%23.3%6.7%
April 20269080.0%14.4%0.0%
May 20269381.7%12.9%1.1%
June 20266897.1%1.5%0.0%

What drove GRB to DTW delay minutes?

Airline was the largest recorded GRB-to-DTW delay category, accounting for 63.5% of 16,343 BTS-attributed delay minutes during July 2025–June 2026.

Airline63.5%
Late aircraft12.2%
National airspace6.1%
Weather18.2%
Security0.0%
This is historical evidence, not a forecast.

Weather, schedules and operations change. For a trip you have already booked, use the airline or airport for live status.