Historical on-time performance
Chicago to Johnstown
487 miData through May 2026Source: US DOT · BTS
Flights on ORD–JST arrive on time 62% of the time over the last 12 months.
On-time rate62%arrived within 15 min
p90 delay75 min1 in 10 flights is worse (tail risk)
Cancelled3.6%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-time62%Medianon timep9075 minCancel3.6%Flights276
Why flights run late
Delay causes
- Airline35%
- Weather18%
- Air traffic (NAS)17%
- Late aircraft30%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather90%
- Air traffic (NAS)10%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 10 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 ORD → JST
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best day of week
On-time rates are fairly even by day on this route — ranging from 54% to 69% on time.
- Saturdays69% on time · p90 60 min · 157 flights · limited
- Tuesdays69% on time · p90 100 min · 156 flights · limited
- Wednesdays66% on time · p90 95 min · 155 flights · limited
- Thursdays66% on time · p90 70 min · 153 flights · limited
- Mondays65% on time · p90 85 min · 155 flights · limited
- Sundays60% on time · p90 80 min · 156 flights · limited
- Fridays54% on time · p90 85 min · 157 flights · limited
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