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

Detroit, MI (DTW) to Buffalo, NY (BUF) flight delay odds

Historically, 77.5% of scheduled reportable flights on this direction arrived on time in July 2025–June 2026. The sample includes 1,091 flights.

HISTORICAL ROUTE SIGNALGenerally reliable
77.5%arrived on time
16.1%30+ min late
1.7%cancelled
1,091scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late10.2%all scheduled flights
120+ minutes late5.2%all scheduled flights
Diverted0.1%did not reach as scheduled
Average arrival+14.3 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
Early morning16581.8%13.9%1.2%
Late morning19176.4%16.2%2.6%
Afternoon25577.3%16.1%2.7%
Evening11777.8%16.2%0.9%
Night36376.0%17.1%1.1%

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
Monday16173.9%14.3%2.5%
Tuesday15877.2%19.0%1.3%
Wednesday15481.8%12.3%0.6%
Thursday15683.3%14.1%0.6%
Friday15474.7%16.9%3.2%
Saturday15180.8%14.6%0.0%
Sunday15770.7%21.7%3.8%

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 Airlines64178.0%15.9%1.6%
Delta Air Lines44376.5%16.7%1.8%
Republic Airways785.7%0.0%14.3%

Monthly trend

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

MonthFlightsOn time30+ minCancelled
July 20253452.9%32.4%0.0%
August 20253865.8%26.3%0.0%
September 20255488.9%5.6%0.0%
October 202512889.1%7.8%0.0%
November 202510880.6%12.0%3.7%
December 20259857.1%29.6%4.1%
January 20266259.7%27.4%6.5%
February 20268078.8%16.2%1.2%
March 202611877.1%17.8%2.5%
April 202612987.6%10.1%0.0%
May 202610776.6%15.0%0.9%
June 202613582.2%14.8%1.5%

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.

Airline65.8%
Late aircraft7.3%
National airspace8.8%
Weather18.1%
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.