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Route Reliability

Portland → Detroit

PDX–DTW · 1,953 miles · Portland International Airport to Detroit Metropolitan Wayne County Airport

82
Pretty Reliable
WanderNerd Reliability Score
79%
Arrive within 15 minutes
14 min
Average arrival delay
1.0%
Cancelled
396
Flights in the data

Data through May 2026.

Delta Air Lines is the only airline in this data on this route, arriving on time 79% of the time across 396 flights. No comparison to make.

What the data says

Morning flights do better here.

PDX–DTW flights departing between 9 AM–12 PM arrived on time 83% of the time, versus 60% between 12–3 PM.

Sunday scaries are real for this one.

PDX–DTW flights arrived on time 89% of the time on Tuesdays and just 71% on Sundays. That gap is worth planning around.

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
  • Mon79%(61 flights)
  • Tue89%(52 flights)
  • Wed79%(52 flights)
  • Thu72%(61 flights)
  • Fri87%(61 flights)
  • Sat81%(42 flights)
  • Sun71%(63 flights)
On-time by departure window
  • 9 AM–12 PM83%(138 flights)
  • 12–3 PM60%(15 flights)
  • 9 PM–12 AM78%(239 flights)
On-time trend by month
67%
May

Jun 82% → May 67% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202582%49
July 202574%57
August 202578%50
September 202588%42
October 202590%48
November 202579%29
December 202563%30
March 202674%23
April 202693%30
May 202667%30

Keep nerding

Based on 396 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.