Historical on-time performance
Rochester to Chicago
268 miData through May 2026Source: US DOT · BTS
Flights on RST–ORD arrive on time 62% of the time over the last 12 months.
On-time rate62%arrived within 15 min
p90 delay95 min1 in 10 flights is worse (tail risk)
Cancelled4.6%of scheduled flights
based on 973 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Envoy AirbestOn-time70%Medianon timep9060 minCancel5.5%Flights491
- SkyWest AirlinesOn-time55%Median5 minp90150 minCancel3.7%Flights482
Why flights run late
Delay causes
- Airline41%
- Weather17%
- Air traffic (NAS)21%
- Late aircraft22%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline2%
- Weather69%
- Air traffic (NAS)29%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 45 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 RST → ORD
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 80% on time.
- Mornings80% on time · p90 45 min · 671 flights
- Middays69% on time · p90 60 min · 445 flights
- Afternoons66% on time · p90 90 min · 215 flights
- Evenings54% on time · p90 115 min · 420 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 63% to 73% on time.
- Tuesdays73% on time · p90 70 min · 250 flights
- Saturdays72% on time · p90 65 min · 236 flights
- Wednesdays71% on time · p90 80 min · 240 flights
- Thursdays71% on time · p90 90 min · 256 flights
- Sundays69% on time · p90 90 min · 252 flights
- Mondays66% on time · p90 85 min · 259 flights
- Fridays63% on time · p90 70 min · 258 flights
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