Flight Reliability
UA 4834 · United Airlines
SCE → Washington (SCE–IAD)97% of its flights flew this route. The rest (IAD–CVG, PIT–IAD) are included in these numbers.
86
Pretty Reliable
WanderNerd Reliability Score
- 86%
- Arrive within 15 minutes
- 8 min
- Average arrival delay
- 2.0%
- Cancelled
- 14 min early
- Median arrival delay
Based on 355 historical flights. Data through May 2026.
What the data says
Tuesday is the weak spot.
UA 4834 arrived on time 92% of the time on Fridays. On Tuesdays: 80%.
Better than the United Airlines network average.
UA 4834 arrived on time 86% of the time, versus 79% across the United Airlines network.
Trending in the right direction.
UA 4834 arrived on time 88% of the time over the last three months in the data, compared with 80% in the three months before that.
The breakdown
- Mon84%(51 flights)
- Tue80%(51 flights)
- Wed90%(52 flights)
- Thu84%(50 flights)
- Fri92%(52 flights)
- Sat83%(46 flights)
- Sun89%(46 flights)
- 9 AM–12 PM87%(342 flights)
- 12–3 PM—(2 flights)
- 3–6 PM—(4 flights)
83%
May
Jun 83% → May 83% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 83% | 29 |
| July 2025 | 77% | 30 |
| August 2025 | 87% | 31 |
| September 2025 | 100% | 30 |
| October 2025 | 97% | 31 |
| November 2025 | 85% | 26 |
| December 2025 | 70% | 27 |
| January 2026 | 82% | 27 |
| February 2026 | 89% | 28 |
| March 2026 | 83% | 30 |
| April 2026 | 97% | 29 |
| May 2026 | 83% | 30 |
- Departures on time
- 89%
- Diverted
- 0%
- Flights flown
- 348
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 355 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.