Seattle (SEA) to Bozeman (BZN): On-Time Performance
Data through May 2026
When you fly SEA to BZN matters as much as anything else about the booking: the route swung from 100% on-time in November 2024 to just 44% in June 2025. Across the full period the route averages 79% on-time against a national 78%.
- On-time
- 79%
- arrived <15 min late
- Avg delay
- 11 min
- completed flights
- Cancelled
- 0.5%
- Flights/day
- 4.1
- last 12 months
- Duration
- 1h 43m
- scheduled
- Distance
- 543 mi
Best airline from SEA to BZN
2 airlines flew this route regularly between 2024-06 and 2026-05.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlinesmost reliable | 88% | 8 min | 0.2% | 888 |
| Alaska Airlines | 72% | 14 min | 0.7% | 1,211 |
Monthly on-time trend
Best time to fly from SEA to BZN
Aim for departures around 7 p.m. (92% on-time); avoid 8 p.m. departures (62%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 80% | 12 min |
| Tuesdaybest | 83% | 9 min |
| Wednesday | 82% | 10 min |
| Thursday | 75% | 13 min |
| Friday | 76% | 11 min |
| Saturday | 80% | 10 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 aircraft34%
- Airline operations42%
- National airspace system15%
- Weather9%
Frequently asked questions
- How often are flights from SEA to BZN delayed?
- 21% of SEA–BZN 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 11 minutes.
- Which airline is most reliable from SEA to BZN?
- SkyWest Airlines has the best on-time record on this route at 88%, based on 888 flights. 2 airlines flew SEA–BZN frequently enough to compare in this period.
- What is the best time of day to fly from SEA to BZN?
- Departures around 7 p.m. have the best record (92% on-time), while departures around 8 p.m. have the worst (62%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SEA to BZN?
- The scheduled SEA–BZN flight time averages 1h 43m over 543 miles. Actual arrival times vary — flights on this route land 15+ minutes late 21% of the time.
- How often are SEA to BZN flights cancelled?
- 0.5% 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 SEA to BZN?
- June 2025 was the roughest month in this dataset, with only 44% of arrivals on time. The best was November 2024 at 100%. If your dates are flexible, that 56-point gap is worth planning around.
Explore related pages
More routes from SEA
Based on 2,100 flights, 2024-06–2026-05. Source: US DOT Bureau of Transportation Statistics. Updated 2026-07-01.