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

Portland, OR (PDX) to Detroit, MI (DTW) flight delay odds

77.4% of 390 official scheduled PDX-to-DTW flights arrived on time; 12.3% arrived at least 30 minutes late and 0.8% 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
77.4%arrived on time
12.3%30+ min late
0.8%cancelled
390scheduled flights
Based on July 2025–June 2026; on time means arrival less than 15 minutes late.
60+ minutes late6.9%all scheduled flights
120+ minutes late2.6%all scheduled flights
Diverted0.0%did not reach as scheduled
Average arrival+16.0 mincompleted flights

Which departure time was most reliable for PDX to DTW?

Among qualifying PDX-to-DTW departure window results, Late morning had the highest on-time rate: 82.4% of 142 flights. Night was lowest at 75.5% across 233 flights.

Departure windowFlightsOn time30+ minCancelled
Late morning14282.4%9.9%0.0%
Night23375.5%13.7%1.3%

Which weekday was most reliable for PDX to DTW?

Among qualifying PDX-to-DTW weekday results, Friday had the highest on-time rate: 83.9% of 62 flights. Sunday was lowest at 71.4% across 63 flights.

DayFlightsOn time30+ minCancelled
Monday6280.6%11.3%1.6%
Tuesday5082.0%6.0%0.0%
Wednesday4973.5%12.2%0.0%
Thursday6172.1%21.3%0.0%
Friday6283.9%4.8%1.6%
Saturday4379.1%14.0%0.0%
Sunday6371.4%15.9%1.6%

Which airline was most reliable for PDX to DTW?

Only Delta Air Lines met the PDX-to-DTW airline threshold: 77.4% of 390 scheduled flights arrived on time during July 2025–June 2026.

AirlineFlightsOn time30+ minCancelled
Delta Air Lines39077.4%12.3%0.8%

Which month was most reliable for PDX to DTW?

Among qualifying PDX-to-DTW month results, April 2026 had the highest on-time rate: 93.3% of 30 flights. December 2025 was lowest at 58.1% across 31 flights.

MonthFlightsOn time30+ minCancelled
July 20255771.9%17.5%0.0%
August 20255076.0%10.0%0.0%
September 20254285.7%7.1%0.0%
October 20254889.6%8.3%0.0%
November 20252979.3%13.8%0.0%
December 20253158.1%16.1%3.2%
March 20262470.8%16.7%4.2%
April 20263093.3%0.0%0.0%
May 20263164.5%19.4%3.2%
June 20264479.5%13.6%0.0%

What drove PDX to DTW delay minutes?

Airline was the largest recorded PDX-to-DTW delay category, accounting for 51.8% of 8,448 BTS-attributed delay minutes during July 2025–June 2026.

Airline51.8%
Late aircraft43.1%
National airspace5.1%
Weather0.0%
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.