Flight OddsUA2136 BOS → IAD
United Airlines · Boston, MA to Washington, DC · 337 flights observed, 2025-07-01 to 2026-06-30 · 412 mi
UA2136 covers more than one route in the data window — the stats below are for BOS → IAD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
69%
Median delay
-1 min
90th percentile
+79 min
Cancellation rate
2%
How often is UA2136 on time?
Across 337 flights on BOS → IAD from 2025-07-01 to 2026-06-30, UA2136 arrived within 15 minutes of schedule 69% of the time. The median arrival delay was -1 min, and the worst 10% of flights arrived +79 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 227 | 69% |
| 16-30 min | 26 | 8% |
| 31-60 min | 28 | 9% |
| 61-120 min | 26 | 8% |
| 2+ hrs | 21 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 29 | 38% | +47 min |
| 2025-08 | 31 | 68% | +21 min |
| 2025-09 | 30 | 47% | +52 min |
| 2025-10 | 31 | 52% | +38 min |
| 2025-11 | 28 | 79% | +12 min |
| 2025-12 | 15 | 80% | +1 min |
| 2026-01 | 24 | 92% | -2 min |
| 2026-02 | 23 | 91% | -2 min |
| 2026-03 | 27 | 78% | +9 min |
| 2026-04 | 30 | 70% | +16 min |
| 2026-05 | 31 | 81% | +7 min |
| 2026-06 | 29 | 72% | +15 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 46 | 70% |
| Tue | 48 | 71% |
| Wed | 46 | 63% |
| Thu | 46 | 59% |
| Fri | 48 | 75% |
| Sat | 47 | 91% |
| Sun | 47 | 55% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…