Flight OddsUA3521 ORD → BDL
United Airlines · Chicago, IL to Hartford, CT · 9 flights observed, 2026-02-12 to 2026-03-02 · 783 mi
UA3521 covers more than one route in the data window — the stats below are for ORD → BDL, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
75%
Median delay
+1 min
90th percentile
+60 min
Cancellation rate
11%
How often is UA3521 on time?
Across 9 flights on ORD → BDL from 2026-02-12 to 2026-03-02, UA3521 arrived within 15 minutes of schedule 75% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +60 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 | 6 | 75% |
| 16-30 min | 1 | 13% |
| 31-60 min | 0 | 0% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 1 | 13% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-02 | 7 | 71% | +18 min |
| 2026-03 | 1 | 100% | +1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 2 | 100% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 3 | 100% |
| Fri | 3 | 33% |
| Sat | No data | — |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…