Flight Reliability
UA 4317 · United Airlines
Washington → Albany (IAD–ALB)98% of its flights flew this route. The rest (ELP–IAH, CLE–IAD) are included in these numbers.
80
Pretty Reliable
WanderNerd Reliability Score
- 78%
- Arrive within 15 minutes
- 12 min
- Average arrival delay
- 1.1%
- Cancelled
- 7 min early
- Median arrival delay
Based on 365 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
UA 4317 arrived on time 83% of the time on Wednesdays and just 67% on Sundays. That gap is worth planning around.
The breakdown
- Mon80%(51 flights)
- Tue78%(51 flights)
- Wed83%(52 flights)
- Thu82%(51 flights)
- Fri81%(52 flights)
- Sat75%(52 flights)
- Sun67%(52 flights)
84%
May
Jun 62% → May 84% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 62% | 29 |
| July 2025 | 68% | 31 |
| August 2025 | 81% | 31 |
| September 2025 | 83% | 30 |
| October 2025 | 97% | 31 |
| November 2025 | 87% | 30 |
| December 2025 | 67% | 30 |
| January 2026 | 72% | 29 |
| February 2026 | 93% | 28 |
| March 2026 | 61% | 31 |
| April 2026 | 83% | 30 |
| May 2026 | 84% | 31 |
- Departures on time
- 81%
- Diverted
- 0%
- Flights flown
- 361
- Months covered
- 12
Same route, other flights
Keep nerding
Based on 365 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.