Historical on-time performance
Seattle to Bozeman
543 miData through May 2026Source: US DOT · BTS
Flights on SEA–BZN arrive on time 81% of the time over the last 12 months.
On-time rate81%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.5%of scheduled flights
based on 1,481 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesbestOn-time87%Medianon timep9015 minCancel0.2%Flights858
- Alaska AirlinesOn-time72%Medianon timep9045 minCancel1.0%Flights623
Why flights run late
Delay causes
- Airline47%
- Weather12%
- Air traffic (NAS)13%
- Late aircraft28%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline38%
- Weather50%
- Air traffic (NAS)13%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 8 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly SEA → BZN
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 69% to 91% on time.
- Evenings91% on time · p90 10 min · 341 flights
- Mornings87% on time · p90 15 min · 370 flights
- Middays77% on time · p90 30 min · 1,332 flights
- Overnights74% on time · p90 35 min · 501 flights
- Afternoons69% on time · p90 45 min · 311 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 84% on time.
- Tuesdays84% on time · p90 25 min · 396 flights
- Wednesdays82% on time · p90 25 min · 393 flights
- Saturdays80% on time · p90 30 min · 384 flights
- Mondays78% on time · p90 30 min · 421 flights
- Sundays78% on time · p90 35 min · 420 flights
- Thursdays76% on time · p90 30 min · 418 flights
- Fridays72% on time · p90 40 min · 423 flights
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