Historical on-time performance
Key West to Chicago
Flights on EYW–ORD arrive on time 66% of the time over the last 12 months.
based on 531 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.
- Republic AirwaysOn-time71%Medianon timep9065 minCancel2.2%Flights93
- Envoy AirOn-time66%Medianon timep9075 minCancel1.1%Flights372
- United AirlinesOn-time55%Median10 minp90140 minCancel3.0%Flights66
Why flights run late
Delay causes
- Airline30%
- Weather7%
- Air traffic (NAS)26%
- Late aircraft37%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline25%
- Weather63%
- Air traffic (NAS)13%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 8 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 EYW → ORD
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 63% to 67% on time.
- Middays67% on time · p90 55 min · 581 flights
- Afternoons65% on time · p90 75 min · 680 flights
- Evenings63% on time · p90 105 min · 115 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 63% to 70% on time.
- Mondays70% on time · p90 85 min · 200 flights
- Tuesdays69% on time · p90 45 min · 195 flights · limited
- Wednesdays69% on time · p90 65 min · 192 flights · limited
- Saturdays65% on time · p90 65 min · 223 flights
- Thursdays64% on time · p90 75 min · 195 flights · limited
- Sundays64% on time · p90 65 min · 203 flights
- Fridays63% on time · p90 75 min · 202 flights
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