Historical on-time performance
Spokane to San Francisco
Flights on GEG–SFO arrive on time 76% of the time over the last 12 months.
based on 772 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesOn-time76%Medianon timep9045 minCancel0.1%Flights772
Why flights run late
Delay causes
- Airline22%
- Weather12%
- Air traffic (NAS)42%
- Late aircraft24%
- Security0%
Most delay minutes here are attributed to Air traffic (NAS).
When flights don't go
Why flights were cancelled
- Airline0%
- Weather0%
- Air traffic (NAS)100%
- Security0%
Most cancellations here are attributed to Air traffic (NAS). Shares are among 1 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 GEG → SFO
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 78% to 83% on time.
- Afternoons83% on time · p90 40 min · 665 flights
- Evenings81% on time · p90 55 min · 136 flights · limited
- Middays79% on time · p90 55 min · 420 flights
- Mornings78% on time · p90 30 min · 962 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 76% to 84% on time.
- Tuesdays84% on time · p90 30 min · 305 flights
- Saturdays83% on time · p90 25 min · 284 flights
- Wednesdays81% on time · p90 40 min · 312 flights
- Sundays80% on time · p90 30 min · 322 flights
- Fridays78% on time · p90 40 min · 320 flights
- Thursdays77% on time · p90 45 min · 322 flights
- Mondays76% on time · p90 50 min · 318 flights
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