Flight Reliability
UA 4813 · United Airlines
Houston → BRO (IAH–BRO)
90
Nerd Approved
WanderNerd Reliability Score
- 87%
- Arrive within 15 minutes
- 2 min early
- Average arrival delay
- 1.1%
- Cancelled
- 12 min early
- Median arrival delay
Based on 359 historical flights. Data through May 2026.
What the data says
Tuesday has been the better bet.
A small edge: 90% on time on Tuesdays against 84% on Wednesdays.
A bit ahead of the IAH–BRO route.
UA 4813 arrived on time 87% of the time, versus 83% across the IAH–BRO route.
Better than the United Airlines network average.
UA 4813 arrived on time 87% of the time, versus 79% across the United Airlines network.
Recent months have been rougher.
UA 4813 arrived on time 80% of the time over the last three months in the data, compared with 89% in the three months before that.
The breakdown
- Mon85%(52 flights)
- Tue90%(52 flights)
- Wed84%(49 flights)
- Thu88%(50 flights)
- Fri88%(48 flights)
- Sat87%(52 flights)
- Sun87%(52 flights)
84%
May
Jun 80% → May 84% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 80% | 25 |
| July 2025 | 94% | 31 |
| August 2025 | 97% | 31 |
| September 2025 | 97% | 30 |
| October 2025 | 87% | 31 |
| November 2025 | 79% | 29 |
| December 2025 | 90% | 31 |
| January 2026 | 80% | 30 |
| February 2026 | 96% | 25 |
| March 2026 | 74% | 31 |
| April 2026 | 83% | 30 |
| May 2026 | 84% | 31 |
- Departures on time
- 89%
- Diverted
- 0%
- Flights flown
- 355
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 359 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.