Flight OddsUA536 ORD → BOS
United Airlines · Chicago, IL to Boston, MA · 31 flights observed, 2025-08-19 to 2025-09-24 · 867 mi
UA536 covers more than one route in the data window — the stats below are for ORD → BOS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
81%
Median delay
-5 min
90th percentile
+50 min
Cancellation rate
0%
How often is UA536 on time?
Across 31 flights on ORD → BOS from 2025-08-19 to 2025-09-24, UA536 arrived within 15 minutes of schedule 81% of the time. The median arrival delay was -5 min, and the worst 10% of flights arrived +50 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 | 25 | 81% |
| 16-30 min | 2 | 6% |
| 31-60 min | 1 | 3% |
| 61-120 min | 3 | 10% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 10 | 80% | +5 min |
| 2025-09 | 21 | 81% | +6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 60% |
| Tue | 6 | 83% |
| Wed | 6 | 83% |
| Thu | 5 | 80% |
| Fri | 5 | 80% |
| Sat | No data | — |
| Sun | 4 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…