Flight Reliability
UA 4307 · United Airlines
Houston → MOB (IAH–MOB)98% of its flights flew this route. The rest (BTV–IAD) are included in these numbers.
85
Pretty Reliable
WanderNerd Reliability Score
- 85%
- Arrive within 15 minutes
- 3 min
- Average arrival delay
- 2.0%
- Cancelled
- 10 min early
- Median arrival delay
Based on 358 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
UA 4307 arrived on time 92% of the time on Thursdays. On Sundays: 79%.
A bit ahead of the United Airlines network.
UA 4307 arrived on time 85% of the time, versus 79% across the United Airlines network.
Slipping a little lately.
UA 4307 arrived on time 85% of the time over the last three months in the data, compared with 89% in the three months before that.
The breakdown
- Mon84%(50 flights)
- Tue83%(48 flights)
- Wed88%(49 flights)
- Thu92%(51 flights)
- Fri81%(52 flights)
- Sat88%(48 flights)
- Sun79%(53 flights)
- 12–3 PM85%(343 flights)
- 6–9 PM—(8 flights)
81%
May
Jun 75% → May 81% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 75% | 28 |
| July 2025 | 73% | 30 |
| August 2025 | 81% | 31 |
| September 2025 | 90% | 30 |
| October 2025 | 94% | 31 |
| November 2025 | 88% | 25 |
| December 2025 | 89% | 26 |
| January 2026 | 77% | 31 |
| February 2026 | 100% | 28 |
| March 2026 | 80% | 30 |
| April 2026 | 93% | 30 |
| May 2026 | 81% | 31 |
- Departures on time
- 85%
- Diverted
- 0%
- Flights flown
- 351
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 358 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.