Best Time to Fly DTW to BOS: On-Time Stats by Hour & Airline
Detroit Metro Wayne County → Logan International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 74.3% of Detroit (DTW) to Boston (BOS) flights arrived on time (2,580 scheduled flights). That is 3.3 points below the national average of 77.6%.
Spirit Airlines was the most punctual of the 3 airlines on the route at 77.4%, while JetBlue trailed at 72.6%.
March has been the best month (83% on time) and Sunday the weakest day of the week (71%).
2.3% of flights were cancelled, versus 1.8% nationally.
DTW to BOS 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 |
|---|---|---|---|---|
| Spirit Airlines | 77.4% | 63 min | 0.0% | 133 |
| Delta Air Lines | 74.8% | 66 min | 1.9% | 1,711 |
| JetBlue | 72.6% | 85 min | 3.5% | 734 |
| Republic Airways | Limited data | 2 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly DTW to BOS
On-time arrival % by scheduled departure hour (local time), 5,397 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 13 | |
| 6am–7am | 86.7% | 0.0% | 128 |
| 7am–8am | 90.3% | 1.5% | 954 |
| 8am–9am | 82.2% | 1.9% | 103 |
| 9am–10am | 80.3% | 4.7% | 128 |
| 10am–11am | 83.8% | 0.7% | 849 |
| 11am–12pm | 80.0% | 1.2% | 162 |
| 12pm–1pm | 81.3% | 0.7% | 151 |
| 1pm–2pm | 75.5% | 0.6% | 164 |
| 2pm–3pm | 68.8% | 1.2% | 664 |
| 3pm–4pm | 66.7% | 1.9% | 52 |
| 4pm–5pm | 76.2% | 0.0% | 63 |
| 5pm–6pm | 54.8% | 2.8% | 571 |
| 6pm–7pm | 67.5% | 2.4% | 293 |
| 7pm–8pm | 71.6% | 5.3% | 208 |
| 8pm–9pm | 76.2% | 1.9% | 214 |
| 9pm–10pm | 68.5% | 2.1% | 656 |
| 10pm–11pm | 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 DTW to BOS
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) | 65.0% | -13.4 pts | 0.0% | 117 |
| Christmas & New Year (Dec 20 - Jan 3) | 70.6% | -7.7 pts | 3.5% | 201 |
| Summer peak (Jun 15 - Aug 15) | 67.7% | -10.7 pts | 4.4% | 991 |
| All other days | 78.3% | — | 1.0% | 4,088 |
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).