Flight OddsUA4857 MHT → IAD
United Airlines · Manchester, NH to Washington, DC · 169 flights observed, 2025-07-01 to 2026-06-30 · 418 mi
UA4857 covers more than one route in the data window — the stats below are for MHT → IAD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
92%
Median delay
-15 min
90th percentile
+8 min
Cancellation rate
0%
How often is UA4857 on time?
Across 169 flights on MHT → IAD from 2025-07-01 to 2026-06-30, UA4857 arrived within 15 minutes of schedule 92% of the time. The median arrival delay was -15 min, and the worst 10% of flights arrived +8 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 156 | 92% |
| 16-30 min | 2 | 1% |
| 31-60 min | 4 | 2% |
| 61-120 min | 2 | 1% |
| 2+ hrs | 5 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 97% | -5 min |
| 2025-08 | 31 | 97% | -10 min |
| 2025-09 | 30 | 87% | +5 min |
| 2025-10 | 6 | 83% | +0 min |
| 2025-11 | 30 | 100% | -16 min |
| 2025-12 | 1 | 100% | -18 min |
| 2026-05 | 10 | 100% | -22 min |
| 2026-06 | 30 | 80% | +33 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 25 | 92% |
| Tue | 25 | 96% |
| Wed | 23 | 91% |
| Thu | 23 | 96% |
| Fri | 24 | 88% |
| Sat | 24 | 92% |
| Sun | 25 | 92% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…