Bozeman (BZN) to Seattle (SEA): On-Time Performance
Data through May 2026
Bozeman (BZN) to Seattle (SEA) effectively runs on two schedules. In November 2024, 93% of arrivals were on time; in June 2025 that fell to 60% — a 33-point seasonal swing. Across the full period the route averages 81% on-time against a national 78%. Morning departures also hold up better than evening ones (92% vs 71%), which matters most in the rough months.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 12 min
- completed flights
- Cancelled
- 0.7%
- Flights/day
- 4.1
- last 12 months
- Duration
- 2h 3m
- scheduled
- Distance
- 543 mi
Best airline from BZN to SEA
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlinesmost reliable | 87% | 10 min | 0.2% | 887 |
| Alaska Airlines | 76% | 14 min | 1.1% | 1,211 |
Monthly on-time trend
Best time to fly from BZN to SEA
Aim for departures around 6 a.m. (98% on-time); avoid 4 p.m. departures (60%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 81% | 12 min |
| Tuesdaybest | 84% | 9 min |
| Wednesday | 84% | 9 min |
| Thursday | 77% | 15 min |
| Friday | 79% | 13 min |
| Saturday | 83% | 14 min |
| Sunday | 77% | 13 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft35%
- Airline operations32%
- National airspace system23%
- Weather11%
Frequently asked questions
- How often are flights from BZN to SEA delayed?
- 19% of BZN–SEA flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-06 and 2026-05. The average arrival delay across completed flights was 12 minutes.
- Which airline is most reliable from BZN to SEA?
- SkyWest Airlines has the best on-time record on this route at 87%, based on 887 flights. 2 airlines flew BZN–SEA frequently enough to compare in this period.
- What is the best time of day to fly from BZN to SEA?
- Departures around 6 a.m. have the best record (98% on-time), while departures around 4 p.m. have the worst (60%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from BZN to SEA?
- The scheduled BZN–SEA flight time averages 2h 3m over 543 miles. Actual arrival times vary — flights on this route land 15+ minutes late 19% of the time.
- How often are BZN to SEA flights cancelled?
- 0.7% of scheduled flights on this route were cancelled between 2024-06 and 2026-05, at or below the national rate of 1.6%.
- What is the worst month to fly from BZN to SEA?
- June 2025 was the roughest month in this dataset, with only 60% of arrivals on time. The best was November 2024 at 93%. If your dates are flexible, that 33-point gap is worth planning around.
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Based on 2,099 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.