Flight OddsUA4389 BTV → IAD
United Airlines · Burlington, VT to Washington, DC · 35 flights observed, 2026-05-21 to 2026-06-30 · 441 mi
UA4389 covers more than one route in the data window — the stats below are for BTV → IAD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
68%
Median delay
-2 min
90th percentile
+96 min
Cancellation rate
0%
How often is UA4389 on time?
Across 35 flights on BTV → IAD from 2026-05-21 to 2026-06-30, UA4389 arrived within 15 minutes of schedule 68% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +96 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 | 23 | 68% |
| 16-30 min | 4 | 12% |
| 31-60 min | 1 | 3% |
| 61-120 min | 3 | 9% |
| 2+ hrs | 3 | 9% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-05 | 8 | 63% | +59 min |
| 2026-06 | 26 | 69% | +17 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 6 | 67% |
| Tue | 6 | 67% |
| Wed | 4 | 50% |
| Thu | 6 | 67% |
| Fri | 6 | 83% |
| Sat | No data | — |
| Sun | 6 | 67% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…