Flight OddsUA515 BOS → EWR
United Airlines · Boston, MA to Newark, NJ · 49 flights observed, 2025-07-01 to 2025-08-18 · 200 mi
UA515 covers more than one route in the data window — the stats below are for BOS → EWR, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
75%
Median delay
-4 min
90th percentile
+35 min
Cancellation rate
2%
How often is UA515 on time?
Across 49 flights on BOS → EWR from 2025-07-01 to 2025-08-18, UA515 arrived within 15 minutes of schedule 75% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +35 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 | 36 | 75% |
| 16-30 min | 5 | 10% |
| 31-60 min | 6 | 13% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 74% | +3 min |
| 2025-08 | 17 | 76% | +4 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 57% |
| Tue | 7 | 100% |
| Wed | 7 | 100% |
| Thu | 6 | 50% |
| Fri | 7 | 100% |
| Sat | 7 | 43% |
| Sun | 7 | 71% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…