Flight Reliability
UA 4445 · United Airlines
Chicago → Birmingham (ORD–BHM)83% of its flights flew this route. The rest (ORD–SYR, BTV–EWR) are included in these numbers.
71
Usually Fine
WanderNerd Reliability Score
- 72%
- Arrive within 15 minutes
- 16 min
- Average arrival delay
- 1.5%
- Cancelled
- 8 min early
- Median arrival delay
Based on 332 historical flights. Data through May 2026.
What the data says
Mornings have a slight edge.
Departures between 6–9 AM arrived on time 76% of the time, against 71% between 9 AM–12 PM.
Wednesday is the weak spot.
UA 4445 arrived on time 77% of the time on Mondays. On Wednesdays: 64%.
Lagging the United Airlines network.
UA 4445 arrived on time 72% of the time, versus 79% across the United Airlines network.
The breakdown
- Mon77%(48 flights)
- Tue73%(45 flights)
- Wed64%(45 flights)
- Thu69%(48 flights)
- Fri71%(48 flights)
- Sat72%(46 flights)
- Sun77%(47 flights)
- 6–9 AM76%(29 flights)
- 9 AM–12 PM71%(272 flights)
- 12–3 PM—(4 flights)
- 3–6 PM71%(21 flights)
- 6–9 PM—(1 flights)
73%
May
Jun 83% → May 73% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 83% | 30 |
| July 2025 | 65% | 31 |
| August 2025 | 77% | 30 |
| October 2025 | 71% | 31 |
| November 2025 | 70% | 30 |
| December 2025 | 60% | 30 |
| January 2026 | 67% | 30 |
| February 2026 | 90% | 20 |
| March 2026 | 57% | 28 |
| April 2026 | 79% | 29 |
| May 2026 | 73% | 30 |
- Departures on time
- 77%
- Diverted
- 0%
- Flights flown
- 327
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 332 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.