Best Time to Fly PWM to DTW: On-Time Stats by Hour & Airline
Portland International Jetport → Detroit Metro Wayne County
Data through July 2026 · Last updated October 18, 2026
613 flights were scheduled from Portland (PWM) to Detroit (DTW) in the last 12 months, and 79.7% of those that flew arrived on time, 2.1 points above the US average of 77.6%.
Republic Airways was the most punctual of the 3 airlines on the route at 82.9%, while SkyWest Airlines trailed at 71.2%.
April has been the best month (92% on time) and Sunday the weakest day of the week (71%).
1.0% of flights were cancelled, versus 1.8% nationally.
PWM to DTW on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Republic Airways | 82.9% | 81 min | 1.3% | 77 |
| Delta Air Lines | 81.9% | 103 min | 1.2% | 404 |
| SkyWest Airlines | 71.2% | 93 min | 0.0% | 132 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly PWM to DTW
On-time arrival % by scheduled departure hour (local time), 1,235 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 88.5% | 0.6% | 157 |
| 6am–7am | Limited data | 1 | |
| 7am–8am | Limited data | 22 | |
| 11am–12pm | Limited data | 14 | |
| 12pm–1pm | 79.1% | 0.6% | 504 |
| 1pm–2pm | Limited data | 25 | |
| 2pm–3pm | Limited data | 1 | |
| 4pm–5pm | 76.1% | 0.9% | 343 |
| 5pm–6pm | 75.5% | 0.7% | 144 |
| 6pm–7pm | Limited data | 24 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on PWM to DTW
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 24 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 67.3% | -15.9 pts | 0.0% | 52 |
| Summer peak (Jun 15 - Aug 15) | 69.0% | -14.2 pts | 1.6% | 253 |
| All other days | 83.2% | — | 0.4% | 906 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).