Historical on-time performance
Sacramento to Spokane
649 miData through May 2026Source: US DOT · BTS
Flights on SMF–GEG arrive on time 78% of the time over the last 12 months.
On-time rate78%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled0.0%of scheduled flights
based on 657 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time78%Medianon timep9035 minCancel0.0%Flights657
Why flights run late
Delay causes
- Airline21%
- Weather0%
- Air traffic (NAS)4%
- Late aircraft75%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline94%
- Weather6%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 18 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 SMF → GEG
All airlines · rolling 36 months (2023-06 .. 2026-05).
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 · 424 flights
- Middays86% on time · p90 20 min · 576 flights
- Afternoons77% on time · p90 30 min · 348 flights
- Evenings73% on time · p90 45 min · 255 flights
- Overnights62% on time · p90 75 min · 297 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 77% to 86% on time.
- Saturdays86% on time · p90 20 min · 187 flights · limited
- Mondays82% on time · p90 25 min · 299 flights
- Wednesdays82% on time · p90 25 min · 254 flights
- Tuesdays81% on time · p90 30 min · 259 flights
- Sundays80% on time · p90 35 min · 294 flights
- Thursdays79% on time · p90 35 min · 301 flights
- Fridays77% on time · p90 35 min · 306 flights
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