Historical on-time performance
Birmingham to Chicago
Flights on BHM–ORD arrive on time 77% of the time over the last 12 months.
based on 922 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-time87%Medianon timep9015 minCancel0.0%Flights123
- Envoy AirOn-time76%Medianon timep9050 minCancel1.3%Flights759
- SkyWest AirlinesOn-time53%Median5 minp90155 minCancel5.0%Flights40
Why flights run late
Delay causes
- Airline23%
- Weather13%
- Air traffic (NAS)27%
- Late aircraft37%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline8%
- Weather58%
- Air traffic (NAS)33%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 12 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 BHM → 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 61% to 85% on time.
- Mornings85% on time · p90 30 min · 620 flights
- Middays82% on time · p90 30 min · 881 flights
- Afternoons71% on time · p90 60 min · 377 flights
- Evenings61% on time · p90 90 min · 366 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 73% to 83% on time.
- Tuesdays83% on time · p90 35 min · 268 flights
- Thursdays79% on time · p90 40 min · 335 flights
- Wednesdays79% on time · p90 40 min · 317 flights
- Fridays77% on time · p90 45 min · 347 flights
- Mondays76% on time · p90 40 min · 341 flights
- Saturdays75% on time · p90 45 min · 286 flights
- Sundays73% on time · p90 60 min · 354 flights
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