Carrier route record
OOBZN→SEA
SkyWest Airlines · Bozeman to Seattle
- Flights
- 937
- Period
- September 2025 to August 2026
- Share of route
- 60%
- Carriers
- 2
Historical statistics for September 2025 to August 2026, not live status. For today’s flights, check with SkyWest Airlines.
SkyWest on BZN to SEA earns a B+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.3%. When something does go wrong the average delay runs about an hour. That rests on 937 flights, with a median arrival 7 minutes early.
Set against the rest of the country, SkyWest's BZN to SEA record is 7 points better than the US average of 77.3%. That gap is worth roughly 69 fewer late arrivals for every thousand flights.
Key figures
On time
84.2%
Arrivals under 15 minutes late, of 932 completed flights
Avg delay
64 min
Across delayed arrivals only, not all flights
Cancelled
0.21%
National rate is 1.89%
Whole route
84.1%
Every carrier on BZN to SEA, 1,565 flights
These figures cover 937 flights between September 2025 and August 2026. The median arrival is 7 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
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Carrier by carrier
SkyWest against every carrier on BZN to SEA
SkyWest flew 937 of the 1,565 flights on BZN to SEA, most of the route. Its 84.2% on time is about level with the route as a whole at 84.1%. Ranked by on-time rate it is first of two carriers on the route, where the range runs from SkyWest at 84.2% to Alaska at 83.9%.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| SkyWest Airlines (this page) | 937 | 84.2% | 64 min | 0.21% | B+ |
| Alaska Airlines | 628 | 83.9% | 65 min | 1.11% | B |
Flight by flight
SkyWest flight numbers on BZN to SEA
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Departure window
When SkyWest runs best on this route
Departure time matters more here than the choice of carrier. The gap between the best and worst window is 26 points, against half a point between the best and worst carrier.
- 5am–8am247 flights91.0%
- 8am–11am117 flights93.2%
- 11am–2pm121 flights84.2%
- 2pm–5pm314 flights83.7%
- 5pm–8pm118 flights66.9%
- 8pm–5am20 flights—
Scale runs 60% to 100%. Rows with fewer than 30 flights show a dash.
Book the morning departure. Flights leaving between 8am–11am arrive on time 93.2% of the time, against 66.9% for the evening window. That is 26 points of difference for no extra money, and it comes from the same aircraft having had no earlier flight to fall behind on. The 2pm–5pm window is the busiest, with 314 flights scheduled in it.
Across the year
SkyWest on BZN to SEA through the year
August is the worst month at 75.0% on time, 18 points below September, the best at 93.3%. Summer afternoon convection and peak-season schedules land on the same weeks every year, so this is a pattern you can book around rather than a run of bad luck. December was the busiest month here, with 101 flights.
Across the week, Wednesday is the strongest day at 88.2% on time and Friday the weakest at 79.7%, a spread of 9 points.
Arrival by arrival
How late SkyWest on BZN to SEA runs when it is late
SkyWest on BZN to SEA often beats the schedule: 306 of 932 completed flights, 33%, arrived 15 minutes or more early. The 147 late arrivals split 56 under half an hour, 47 between 30 and 60 minutes, and 44 an hour or more.
- 15+ min early306 flights32.8%
- Within 15 min479 flights51.4%
- 15–29 min late56 flights6.0%
- 30–59 min late47 flights5.0%
- 1–2 hours late26 flights2.8%
- 2+ hours late18 flights1.9%
Scale runs 0% to 100%.
Share of 932 completed flights by arrival against schedule.
13 of 105 late departures made up the time and arrived on time, 12% of them. In the other direction, 55 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at SEA.
The worst days
Worst days for SkyWest on BZN to SEA
The latest arrival of the period was on 21 February 2026, 13 hours 42 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 21 February 2026 | 13 hours 42 minutes | Carrier |
| 24 November 2025 | 7 hours 41 minutes | Extreme weather |
| 15 January 2026 | 5 hours 34 minutes | Extreme weather |
| 26 February 2026 | 5 hours 31 minutes | Carrier |
| 20 June 2026 | 4 hours 24 minutes | Carrier |
Delay causes
Why SkyWest runs late on this route
Carrier accounts for 45% of the 9,405 delay minutes carriers reported here, and the remaining four split what is left.
- 45%Carrier
- 20%Late-arriving aircraft
- 17%National Airspace System
- 17%Extreme weather
- 0%Security
Extreme weather accounts for 17% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 2.8 times the usual weather exposure. The split is drawn from 9,405 reported delay minutes.
The largest share of delay minutes, 45%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 4,271 of the 9,405 delay minutes reported here.
Cancellations are rare at 0.21%, below the national 1.89% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.
Connections and stage length
What a delay here costs
Badly late arrivals are rare here: only 4.7% land an hour or more behind schedule, against 8.3% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.
The 543 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
The return leg runs 84.2% on time across 937 flights, within half a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.
One caution: this is a thin sample. 937 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking SkyWest on BZN to SEA
Put together: treat all of this as provisional. 937 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 84.2% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 932 completed flights over 12 months sit behind that.
Related
Where to go next
- BZN to SEA, every carrier
- SkyWest on SEA to BZN, the return leg
- Alaska Airlines on BZN to SEA83.9%
- SkyWest Airlines network-wide record
- Seattle-Tacoma International (SEA) delay statistics
- Flying to ski country: which routes into the mountains run on time
- The best time of day to fly, according to 7.05 million flight records
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.