Flight OddsUA4255 IAD → MHT
United Airlines · Washington, DC to Manchester, NH · 19 flights observed, 2025-12-18 to 2026-01-05 · 418 mi
UA4255 covers more than one route in the data window — the stats below are for IAD → MHT, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
59%
Median delay
+10 min
90th percentile
+117 min
Cancellation rate
11%
How often is UA4255 on time?
Across 19 flights on IAD → MHT from 2025-12-18 to 2026-01-05, UA4255 arrived within 15 minutes of schedule 59% of the time. The median arrival delay was +10 min, and the worst 10% of flights arrived +117 min or later. 11% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 10 | 59% |
| 16-30 min | 2 | 12% |
| 31-60 min | 1 | 6% |
| 61-120 min | 3 | 18% |
| 2+ hrs | 1 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-12 | 12 | 58% | +45 min |
| 2026-01 | 5 | 60% | +24 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 2 | 50% |
| Tue | 2 | 0% |
| Wed | 2 | 50% |
| Thu | 3 | 100% |
| Fri | 3 | 33% |
| Sat | 2 | 50% |
| Sun | 3 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…