Flight Reliability
UA 4853 · United Airlines
Syracuse → Washington (SYR–IAD)95% of its flights flew this route. The rest (LBB–IAH, LIT–IAH) are included in these numbers.
60
A Little Dicey
WanderNerd Reliability Score
- 79%
- Arrive within 15 minutes
- 25 min
- Average arrival delay
- 4.8%
- Cancelled
- 11 min early
- Median arrival delay
Based on 167 historical flights. Data through May 2026.
What the data says
Wednesdays have been rough.
UA 4853 arrived on time 87% of the time on Mondays and just 71% on Wednesdays. That gap is worth planning around.
Keep a backup plan handy.
UA 4853 was cancelled 4.8% of the time. Typical for U.S. flights is around 1–2%.
Ticking up lately.
UA 4853 arrived on time 79% of the time over the last three months in the data, compared with 76% in the three months before that.
The breakdown
- Mon87%(23 flights)
- Tue80%(20 flights)
- Wed71%(24 flights)
- Thu74%(23 flights)
- Fri77%(22 flights)
- Sat87%(23 flights)
- Sun75%(24 flights)
- 6–9 AM—(5 flights)
- 9 AM–12 PM—(4 flights)
- 6–9 PM77%(150 flights)
86%
May
Jun 68% → May 86% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 68% | 28 |
| July 2025 | 76% | 25 |
| August 2025 | 83% | 18 |
| March 2026 | 68% | 25 |
| April 2026 | 84% | 25 |
| May 2026 | 86% | 29 |
- Departures on time
- 79%
- Diverted
- 0%
- Flights flown
- 159
- Months covered
- 8
Same route, other flights
Keep nerding
Based on 167 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.