Historical on-time performance
Chicago to Spokane
1,498 miData through Dec 2025Source: US DOT · BTS
Flights on ORD–GEG arrive on time 72% of the time over the last 12 months.
On-time rate72%arrived within 15 min
p90 delay65 min1 in 10 flights is worse (tail risk)
Cancelled0.2%of scheduled flights
based on 412 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- SkyWest AirlinesOn-time76%Medianon timep9055 minCancel0.4%Flights230
- American AirlinesOn-time68%Medianon timep9075 minCancel0.0%Flights182
Why flights run late
Delay causes
- Airline34%
- Weather9%
- Air traffic (NAS)13%
- Late aircraft43%
- Security1%
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 ORD → 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 — 83% on time.
- Mornings83% on time · p90 20 min · 202 flights
- Middays70% on time · p90 70 min · 198 flights · limited
- Evenings63% on time · p90 85 min · 173 flights · limited
- Overnights62% on time · p90 60 min · 206 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 67% to 71% on time.
- Thursdays71% on time · p90 75 min · 115 flights · limited
- Saturdays71% on time · p90 65 min · 110 flights · limited
- Wednesdays70% on time · p90 50 min · 101 flights · limited
- Fridays69% on time · p90 70 min · 120 flights · limited
- Sundays69% on time · p90 55 min · 116 flights · limited
- Mondays69% on time · p90 60 min · 118 flights · limited
- Tuesdays67% on time · p90 60 min · 99 flights · limited
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