Flight Reliability
UA 4876 · United Airlines
Syracuse → Washington (SYR–IAD)99% of its flights flew this route. The rest (GPT–IAH) are included in these numbers.
67
Usually Fine
WanderNerd Reliability Score
- 77%
- Arrive within 15 minutes
- 24 min
- Average arrival delay
- 2.8%
- Cancelled
- 5 min early
- Median arrival delay
Based on 246 historical flights. Data through May 2026.
What the data says
Tuesdays have been rough.
UA 4876 arrived on time 82% of the time on Sundays and just 67% on Tuesdays. That gap is worth planning around.
Trending in the right direction.
UA 4876 arrived on time 87% of the time over the last three months in the data, compared with 68% in the three months before that.
The breakdown
- Mon78%(36 flights)
- Tue67%(36 flights)
- Wed78%(36 flights)
- Thu73%(37 flights)
- Fri82%(38 flights)
- Sat77%(22 flights)
- Sun82%(34 flights)
- 12–3 PM76%(237 flights)
- 9 PM–12 AM—(2 flights)
90%
May
Jun 64% → May 90% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 64% | 22 |
| July 2025 | 65% | 26 |
| August 2025 | 80% | 15 |
| October 2025 | 88% | 25 |
| December 2025 | 64% | 11 |
| January 2026 | 65% | 26 |
| February 2026 | 74% | 27 |
| March 2026 | 80% | 30 |
| April 2026 | 90% | 30 |
| May 2026 | 90% | 19 |
- Departures on time
- 76%
- Diverted
- 0%
- Flights flown
- 239
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 246 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.