Historical on-time performance
Chicago to Johnstown
487 miData through Dec 2025Source: US DOT · BTS
Flights on ORD–JST arrive on time 67% of the time over the last 12 months.
On-time rate67%arrived within 15 min
p90 delay75 min1 in 10 flights is worse (tail risk)
Cancelled0.7%of scheduled flights
based on 276 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- SkyWest AirlinesOn-time67%Medianon timep9075 minCancel0.7%Flights276
Why flights run late
Delay causes
- Airline35%
- Weather11%
- Air traffic (NAS)11%
- Late aircraft43%
- 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 ORD → JST
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best day of week
On-time rates are fairly even by day on this route — ranging from 56% to 73% on time.
- Mondays73% on time · p90 65 min · 156 flights · limited
- Saturdays72% on time · p90 50 min · 156 flights · limited
- Tuesdays72% on time · p90 65 min · 157 flights · limited
- Thursdays69% on time · p90 65 min · 152 flights · limited
- Wednesdays67% on time · p90 80 min · 156 flights · limited
- Sundays61% on time · p90 80 min · 156 flights · limited
- Fridays56% on time · p90 85 min · 156 flights · limited
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