Historical on-time performance
Spokane to Chicago
1,498 miData through May 2026Source: US DOT · BTS
Flights on GEG–ORD arrive on time 66% of the time over the last 12 months.
On-time rate66%arrived within 15 min
p90 delay50 min1 in 10 flights is worse (tail risk)
Cancelled0.7%of scheduled flights
based on 565 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesbestOn-time69%Medianon timep9030 minCancel1.1%Flights353
- American AirlinesOn-time60%Medianon timep9085 minCancel0.0%Flights212
Why flights run late
Delay causes
- Airline51%
- Weather6%
- Air traffic (NAS)16%
- Late aircraft27%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather100%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 4 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 → ORD
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Overnights are the most reliable time of day to fly this route — 88% on time.
- Overnights88% on time · p90 15 min · 250 flights
- Mornings79% on time · p90 25 min · 239 flights
- Middays59% on time · p90 75 min · 539 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 65% to 76% on time.
- Thursdays76% on time · p90 35 min · 153 flights · limited
- Tuesdays75% on time · p90 30 min · 140 flights · limited
- Sundays73% on time · p90 65 min · 157 flights · limited
- Wednesdays70% on time · p90 70 min · 139 flights · limited
- Fridays70% on time · p90 50 min · 162 flights · limited
- Saturdays69% on time · p90 45 min · 141 flights · limited
- Mondays65% on time · p90 70 min · 147 flights · limited
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