Flight Reliability
UA 253 · United Airlines
Houston → Honolulu (IAH–HNL)
85
Pretty Reliable
WanderNerd Reliability Score
- 80%
- Arrive within 15 minutes
- 5 min
- Average arrival delay
- 0.3%
- Cancelled
- 2 min early
- Median arrival delay
Based on 365 historical flights. Data through May 2026.
What the data says
Friday is doing you no favors.
UA 253 arrived on time 87% of the time on Tuesdays. On Fridays: 75%.
It basically never cancels.
Out of 365 scheduled flights, only 0.3% were cancelled.
Slipping a little lately.
UA 253 arrived on time 77% of the time over the last three months in the data, compared with 84% in the three months before that.
The breakdown
- Mon79%(52 flights)
- Tue87%(52 flights)
- Wed86%(51 flights)
- Thu75%(52 flights)
- Fri75%(52 flights)
- Sat78%(51 flights)
- Sun77%(53 flights)
74%
May
Jun 62% → May 74% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 62% | 29 |
| July 2025 | 58% | 31 |
| August 2025 | 84% | 31 |
| September 2025 | 90% | 30 |
| October 2025 | 87% | 31 |
| November 2025 | 90% | 30 |
| December 2025 | 94% | 31 |
| January 2026 | 84% | 31 |
| February 2026 | 74% | 27 |
| March 2026 | 84% | 31 |
| April 2026 | 73% | 30 |
| May 2026 | 74% | 31 |
- Departures on time
- 72%
- Diverted
- 0.3%
- Flights flown
- 363
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 365 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.