Historical on-time performance
Sacramento to Spokane
649 miData through Dec 2025Source: US DOT · BTS
Flights on SMF–GEG arrive on time 82% of the time over the last 12 months.
On-time rate82%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights
based on 679 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time82%Medianon timep9030 minCancel0.0%Flights679
Why flights run late
Delay causes
- Airline25%
- Weather0%
- Air traffic (NAS)4%
- Late aircraft70%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly SMF → GEG
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 94% on time.
- Mornings94% on time · p90 5 min · 404 flights
- Middays85% on time · p90 20 min · 665 flights
- Afternoons77% on time · p90 35 min · 473 flights
- Evenings70% on time · p90 45 min · 221 flights
- Overnights60% on time · p90 75 min · 184 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 78% to 86% on time.
- Saturdays86% on time · p90 20 min · 185 flights · limited
- Mondays82% on time · p90 25 min · 305 flights
- Sundays81% on time · p90 30 min · 289 flights
- Thursdays81% on time · p90 30 min · 303 flights
- Tuesdays80% on time · p90 30 min · 281 flights
- Wednesdays80% on time · p90 25 min · 277 flights
- Fridays78% on time · p90 35 min · 307 flights
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