Historical on-time performance
Chicago to Rochester
268 miData through Dec 2025Source: US DOT · BTS
Flights on ORD–RST arrive on time 62% of the time over the last 12 months.
On-time rate62%arrived within 15 min
p90 delay85 min1 in 10 flights is worse (tail risk)
Cancelled2.9%of scheduled flights
based on 804 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.
- Envoy AirOn-time68%Medianon timep9040 minCancel6.1%Flights147
- SkyWest AirlinesOn-time61%Medianon timep9095 minCancel2.1%Flights657
Why flights run late
Delay causes
- Airline42%
- Weather30%
- Air traffic (NAS)10%
- Late aircraft18%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly ORD → RST
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 58% to 80% on time.
- Middays80% on time · p90 30 min · 492 flights
- Mornings79% on time · p90 30 min · 193 flights · limited
- Evenings66% on time · p90 60 min · 164 flights · limited
- Afternoons64% on time · p90 90 min · 409 flights
- Overnights58% on time · p90 130 min · 427 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 65% to 73% on time.
- Tuesdays73% on time · p90 55 min · 235 flights
- Wednesdays71% on time · p90 45 min · 230 flights
- Saturdays71% on time · p90 45 min · 223 flights
- Mondays69% on time · p90 70 min · 252 flights
- Thursdays68% on time · p90 70 min · 252 flights
- Sundays66% on time · p90 80 min · 250 flights
- Fridays65% on time · p90 60 min · 243 flights
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