Flight Reliability
UA 4528 · United Airlines
Little Rock → Chicago (LIT–ORD)
81
Pretty Reliable
WanderNerd Reliability Score
- 85%
- Arrive within 15 minutes
- 7 min
- Average arrival delay
- 2.2%
- Cancelled
- 8 min early
- Median arrival delay
Based on 364 historical flights. Data through May 2026.
What the data says
Thursday comes out ahead.
A small edge: 89% on time on Thursdays against 82% on Sundays.
Well ahead of the LIT–ORD route.
UA 4528 arrived on time 85% of the time, versus 70% across the LIT–ORD route.
A bit ahead of the United Airlines network.
UA 4528 arrived on time 85% of the time, versus 79% across the United Airlines network.
The breakdown
- Mon84%(50 flights)
- Tue82%(51 flights)
- Wed84%(50 flights)
- Thu89%(52 flights)
- Fri88%(49 flights)
- Sat86%(50 flights)
- Sun82%(51 flights)
94%
May
Jun 93% → May 94% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 93% | 30 |
| July 2025 | 83% | 29 |
| August 2025 | 97% | 30 |
| September 2025 | 90% | 29 |
| October 2025 | 94% | 31 |
| November 2025 | 80% | 30 |
| December 2025 | 68% | 31 |
| January 2026 | 83% | 29 |
| February 2026 | 89% | 28 |
| March 2026 | 74% | 27 |
| April 2026 | 75% | 28 |
| May 2026 | 94% | 31 |
- Departures on time
- 90%
- Diverted
- 0.8%
- Flights flown
- 353
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 364 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.