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

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

Historically, 70.4% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 812 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
70.4%arrived on time
20.3%30+ min late
2.2%cancelled
812scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late13.9%all scheduled flights
120+ minutes late7.6%all scheduled flights
Diverted0.4%did not reach as scheduled
Average arrival+18.7 mincompleted flights

When is this route most reliable?

The same route can behave differently through the day. These are scheduled departure windows, not actual departure times. Small time windows with fewer than 40 flights are withheld.

Departure windowFlightsOn time30+ minCancelled
Late morning26773.4%18.7%3.4%
Afternoon25268.3%19.0%1.6%
Evening29369.6%22.9%1.7%

Weekday comparison

Day-of-week results use at least 30 scheduled flights per row. Look for broad patterns, not tiny percentage differences.

DayFlightsOn time30+ minCancelled
Monday11963.9%21.0%3.4%
Tuesday11872.0%21.2%1.7%
Wednesday11466.7%23.7%0.9%
Thursday11481.6%10.5%0.9%
Friday11661.2%29.3%2.6%
Saturday11580.9%13.9%1.7%
Sunday11667.2%22.4%4.3%

Airline comparison

Marketing-carrier results make codeshare flights easier to compare as travelers buy them. Dedicated route-airline reports require at least 160 flights.

AirlineFlightsOn time30+ minCancelled
SkyWest Airlines62671.6%20.6%2.4%
Delta Air Lines18666.7%19.4%1.6%

Monthly trend

Month-by-month results show whether a twelve-month average hides an unusual period.

MonthFlightsOn time30+ minCancelled
July 20252100.0%0.0%0.0%
August 20251566.7%26.7%0.0%
September 20252475.0%16.7%0.0%
October 20258386.7%9.6%0.0%
November 20258872.7%13.6%8.0%
December 20259052.2%33.3%3.3%
January 20268856.8%31.8%0.0%
February 20268174.1%18.5%0.0%
March 20269057.8%28.9%7.8%
April 20269071.1%22.2%0.0%
May 20269376.3%15.1%1.1%
June 20266891.2%5.9%0.0%

What drove reported delay minutes?

BTS cause minutes are reported for qualifying delayed flights. These shares describe recorded delay minutes—not the chance that a particular cause will affect your next flight.

Airline68.8%
Late aircraft4.4%
National airspace8.5%
Weather18.4%
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.