Flight Reliability
UA 4924 · United Airlines
Washington → Manchester (IAD–MHT)
54
A Little Dicey
WanderNerd Reliability Score
- 69%
- Arrive within 15 minutes
- 41 min
- Average arrival delay
- 1.8%
- Cancelled
- 5 min early
- Median arrival delay
Based on 113 historical flights. Data through May 2026.
What the data says
Sunday scaries are real for this one.
UA 4924 arrived on time 77% of the time on Saturdays and just 47% on Sundays. That gap is worth planning around.
A bit behind the IAD–MHT route.
UA 4924 arrived on time 69% of the time, versus 74% across the IAD–MHT route.
Lagging the United Airlines network.
UA 4924 arrived on time 69% of the time, versus 79% across the United Airlines network.
The breakdown
- Mon59%(17 flights)
- Tue75%(16 flights)
- Wed75%(16 flights)
- Thu75%(16 flights)
- Fri75%(16 flights)
- Sat77%(13 flights)
- Sun47%(17 flights)
96%
Sep
Jun 58% → Sep 96% on time
| Month | On-time percentage | Flights |
|---|---|---|
| June 2025 | 58% | 26 |
| July 2025 | 60% | 30 |
| August 2025 | 65% | 31 |
| September 2025 | 96% | 24 |
- Departures on time
- 68%
- Diverted
- 0%
- Flights flown
- 111
- Months covered
- 4
Same route, other flights
Keep nerding
Based on 113 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.