Flight Reliability
UA 4286 · United Airlines
Washington → Huntsville (IAD–HSV)
69
Usually Fine
WanderNerd Reliability Score
- 74%
- Arrive within 15 minutes
- 26 min
- Average arrival delay
- 0.8%
- Cancelled
- 7 min early
- Median arrival delay
Based on 363 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
UA 4286 arrived on time 83% of the time on Saturdays and just 61% on Sundays. That gap is worth planning around.
A bit behind the IAD–HSV route.
UA 4286 arrived on time 74% of the time, versus 80% across the IAD–HSV route.
A bit behind the United Airlines network.
UA 4286 arrived on time 74% of the time, versus 79% across the United Airlines network.
Ticking up lately.
UA 4286 arrived on time 80% of the time over the last three months in the data, compared with 74% in the three months before that.
The breakdown
- Mon69%(51 flights)
- Tue80%(50 flights)
- Wed73%(52 flights)
- Thu77%(51 flights)
- Fri75%(52 flights)
- Sat83%(52 flights)
- Sun61%(51 flights)
71%
May
Jun 63% → May 71% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 63% | 30 |
| July 2025 | 53% | 30 |
| August 2025 | 81% | 31 |
| September 2025 | 83% | 29 |
| October 2025 | 71% | 31 |
| November 2025 | 73% | 30 |
| December 2025 | 57% | 30 |
| January 2026 | 72% | 29 |
| February 2026 | 93% | 28 |
| March 2026 | 80% | 30 |
| April 2026 | 90% | 30 |
| May 2026 | 71% | 31 |
- Departures on time
- 78%
- Diverted
- 0.3%
- Flights flown
- 359
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 363 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.