Best Time to Fly BOS to BZN: On-Time Stats by Hour & Airline
Logan International → Bozeman Yellowstone International
Data through July 2026 · Last updated October 18, 2026
207 flights were scheduled from Boston (BOS) to Bozeman (BZN) in the last 12 months, and 69.9% of those that flew arrived on time, 7.7 points below the US average of 77.6%.
JetBlue was the most punctual of the 2 airlines on the route at 70.9%, while Delta Air Lines trailed at 67.7%.
August has been the best month (93% on time) and Saturday the weakest day of the week (68%).
5.3% of flights were cancelled, versus 1.8% nationally.
BOS to BZN 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 |
|---|---|---|---|---|
| JetBlue | 70.9% | 50 min | 5.6% | 142 |
| Delta Air Lines | 67.7% | 58 min | 4.6% | 65 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly BOS to BZN
On-time arrival % by scheduled departure hour (local time), 367 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 73.4% | 2.5% | 162 |
| 8am–9am | 75.9% | 5.7% | 88 |
| 9am–10am | 71.8% | 2.5% | 40 |
| 10am–11am | 68.6% | 3.8% | 53 |
| 12pm–1pm | 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 BOS to BZN
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Christmas & New Year (Dec 20 - Jan 3) | 54.0% | -20.4 pts | 5.1% | 39 |
| Summer peak (Jun 15 - Aug 15) | 77.5% | +3.0 pts | 4.0% | 148 |
| All other days | 74.4% | — | 2.2% | 180 |
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).