Best Time to Fly SEA to BZN: On-Time Stats by Hour & Airline
Seattle/Tacoma International → Bozeman Yellowstone International
Data through July 2026 · Last updated October 18, 2026
1,574 flights were scheduled from Seattle (SEA) to Bozeman (BZN) in the last 12 months, and 82.4% of those that flew arrived on time, 4.8 points above the US average of 77.6%.
Among 2 airlines, SkyWest Airlines led with 86.0% on time and Alaska Airlines was last with 76.9%.
Over 24 months, Tuesday was the most reliable day (84% on time) and June the worst month (71%).
The cancellation rate was 0.4% (US average 1.8%).
SEA 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 |
|---|---|---|---|---|
| SkyWest Airlines | 86.0% | 55 min | 0.2% | 949 |
| Alaska Airlines | 76.9% | 50 min | 0.8% | 624 |
| Delta Air Lines | Limited data | 1 | ||
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SEA to BZN
On-time arrival % by scheduled departure hour (local time), 2,225 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | Limited data | 1 | |
| 8am–9am | 88.4% | 0.0% | 183 |
| 9am–10am | Limited data | 16 | |
| 11am–12pm | 76.2% | 0.8% | 723 |
| 12pm–1pm | 79.1% | 0.0% | 191 |
| 1pm–2pm | 91.2% | 0.0% | 113 |
| 2pm–3pm | Limited data | 21 | |
| 3pm–4pm | 62.1% | 0.6% | 175 |
| 4pm–5pm | 69.6% | 1.0% | 103 |
| 5pm–6pm | Limited data | 5 | |
| 7pm–8pm | 90.3% | 0.3% | 382 |
| 8pm–9pm | 65.3% | 0.0% | 101 |
| 9pm–10pm | 79.5% | 0.5% | 211 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SEA to BZN
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) | 83.3% | +1.9 pts | 3.2% | 31 |
| Christmas & New Year (Dec 20 - Jan 3) | 82.2% | +0.8 pts | 0.0% | 107 |
| Summer peak (Jun 15 - Aug 15) | 71.9% | -9.5 pts | 0.4% | 541 |
| All other days | 81.5% | — | 0.5% | 1,546 |
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).