Route Reliability
Chicago → Birmingham
ORD–BHM · 584 miles · Chicago O'Hare International Airport to Birmingham–Shuttlesworth International Airport
- 73%
- Arrive within 15 minutes
- 15 min
- Average arrival delay
- 2.3%
- Cancelled
- 1,977
- Flights in the data
Data through May 2026.
Who flies it best
Ranked by on-time arrivals. Historical results, not predictions.
- 1.American Airlines79%960 flights
- 2.United Airlines68%1,017 flights
What the data says
Morning-you made the right choice.
ORD–BHM flights departing between 6–9 AM arrived on time 84% of the time, versus 67% between 6–9 PM.
Tuesday has been the better bet.
A small edge: 77% on time on Tuesdays against 71% on Wednesdays.
American Airlines runs this route best.
American Airlines arrived on time 79% of the time on this route; United Airlines managed 68%.
Trending in the right direction.
ORD–BHM flights arrived on time 73% of the time over the last three months in the data, compared with 65% in the three months before that.
Best historical flights
Ranked by on-time arrivals, minimum 100 flights. Past performance, not a promise.
Top flights by on-time rate
More flights on this route
The breakdown
- Mon73%(275 flights)
- Tue77%(254 flights)
- Wed71%(282 flights)
- Thu75%(280 flights)
- Fri72%(281 flights)
- Sat72%(270 flights)
- Sun74%(288 flights)
- 6–9 AM84%(272 flights)
- 9 AM–12 PM76%(415 flights)
- 12–3 PM73%(204 flights)
- 3–6 PM71%(372 flights)
- 6–9 PM67%(599 flights)
- 9 PM–12 AM77%(68 flights)
Jun 76% → May 77% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 76% | 139 |
| July 2025 | 66% | 141 |
| August 2025 | 84% | 154 |
| September 2025 | 86% | 165 |
| October 2025 | 76% | 205 |
| November 2025 | 73% | 165 |
| December 2025 | 56% | 146 |
| January 2026 | 67% | 144 |
| February 2026 | 73% | 153 |
| March 2026 | 67% | 172 |
| April 2026 | 74% | 175 |
| May 2026 | 77% | 171 |
Same trip, other airports
Keep nerding
Based on 1,977 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.