Flight Reliability
UA 4232 · United Airlines
HRL → Houston (HRL–IAH)91% of its flights flew this route. The rest (MFE–IAH, BTV–IAD) are included in these numbers.
85
Pretty Reliable
WanderNerd Reliability Score
- 81%
- Arrive within 15 minutes
- 9 min
- Average arrival delay
- 0.8%
- Cancelled
- 5 min early
- Median arrival delay
Based on 357 historical flights. Data through May 2026.
What the data says
Tuesday is the weak spot.
UA 4232 arrived on time 87% of the time on Mondays. On Tuesdays: 78%.
Recent months have been rougher.
UA 4232 arrived on time 73% of the time over the last three months in the data, compared with 81% in the three months before that.
The breakdown
- Mon87%(52 flights)
- Tue78%(49 flights)
- Wed81%(47 flights)
- Thu82%(51 flights)
- Fri78%(51 flights)
- Sat78%(51 flights)
- Sun85%(52 flights)
- 6–9 AM82%(323 flights)
- 12–3 PM80%(25 flights)
- 3–6 PM—(1 flights)
- 6–9 PM—(4 flights)
74%
May
Jun 82% → May 74% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 82% | 27 |
| July 2025 | 84% | 31 |
| August 2025 | 90% | 31 |
| September 2025 | 87% | 30 |
| October 2025 | 87% | 31 |
| November 2025 | 83% | 30 |
| December 2025 | 74% | 31 |
| January 2026 | 87% | 30 |
| February 2026 | 83% | 23 |
| March 2026 | 68% | 28 |
| April 2026 | 77% | 30 |
| May 2026 | 74% | 31 |
- Departures on time
- 88%
- Diverted
- 0.3%
- Flights flown
- 353
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 357 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.