Route · ORD → BHM · 2020–2025 BTS data
Chicago to Birmingham
The ORD–BHM corridor (Chicago, IL → Birmingham, AL) runs ahead of the national average, served by 19 carriers across roughly 584 miles.
Data updated 2026-06-13
- 81.3%
- On-time
- +2.3 pts
- vs US avg
- 64 min
- Delay when late
- 3,664
- Flights
Cancelled
1.0%
Best Month
Oct 2024 97%
Worst Month
Jun 2024 60%
Distance
584 mi
Carriers
19
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 73 | 26 | 0 | 0 | YX,OH,MQ |
| Nov 2025 | 84 | 16 | 4 | 0 | MQ,YX |
| Oct 2025 | 114 | 28 | 0 | 0 | OO,YX,MQ |
| Sep 2025 | 121 | 11 | 0 | 0 | MQ,OO,YX |
| Aug 2025 | 108 | 10 | 2 | 0 | YX,MQ |
| Jul 2025 | 83 | 18 | 2 | 0 | YX,MQ |
| Jun 2025 | 79 | 21 | 0 | 0 | OO,YX,MQ |
| May 2025 | 61 | 17 | 0 | 0 | OO,MQ |
| Apr 2025 | 42 | 9 | 0 | 0 | MQ |
| Dec 2024 | 31 | 4 | 0 | 0 | MQ,YX |
| Nov 2024 | 60 | 8 | 0 | 0 | YX,MQ,OO |
| Oct 2024 | 94 | 3 | 0 | 0 | MQ,YX |
| Sep 2024 | 90 | 13 | 0 | 0 | YX,UA,AA,MQ |
| Jun 2024 | 55 | 22 | 2 | 0 | MQ,OO |
| May 2024 | 49 | 17 | 0 | 0 | MQ,OO |
| Dec 2023 | 72 | 12 | 0 | 0 | OO,MQ,YX |
| Nov 2023 | 57 | 7 | 0 | 0 | MQ,YX,OO |
| Oct 2023 | 73 | 8 | 0 | 0 | MQ,OO |
| Sep 2023 | 73 | 18 | 0 | 1 | MQ,OO,UA |
| Aug 2023 | 83 | 16 | 1 | 1 | OO,YX |
| Jul 2023 | 60 | 16 | 3 | 1 | YX,OO |
| Jun 2023 | 60 | 12 | 1 | 0 | OO |
| May 2023 | 75 | 13 | 0 | 0 | MQ,YX,OO |
| Apr 2023 | 86 | 14 | 3 | 0 | OO,MQ |
Cancellation Rate
1.0%
18 of 1,783 flights
Diversion Rate
0.2%
3 of 1,783 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
ORD - Chicago
Full on-time, delay-cause, and seasonal performance for Chicago, IL.
Origin airport →BHM - Birmingham
Full on-time, delay-cause, and seasonal performance for Birmingham, AL.
Destination airport →Compare the two airports
See ORD and BHM side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to ORD–BHM.
Routes with a similar on-time rate
What the Data Says About ORD to BHM
3,664 tracked flights put the ORD to BHM pairing (Chicago to Birmingham) at a 81.3% on-time rate, squarely in line with the wider network. Delays that do occur run 64.3 minutes on average. Across the 584-mile route and its 19 carriers, the trailing 24 months show 1.0% cancelled and 0.2% diverted (1,783 flights sampled).
The monthly split is wide on this route: Oct 2024 posted the strongest performance at 97% on-time, while Jun 2024 came in at just 60% - a 37-point swing worth factoring into travel timing.
Frequently Asked Questions
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Data source
Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.