Flight OddsUA661 ORD → LAX
United Airlines · Chicago, IL to Los Angeles, CA · 171 flights observed, 2025-10-26 to 2026-06-30 · 1,744 mi
UA661 covers more than one route in the data window — the stats below are for ORD → LAX, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
65%
Median delay
+5 min
90th percentile
+82 min
Cancellation rate
1%
How often is UA661 on time?
Across 171 flights on ORD → LAX from 2025-10-26 to 2026-06-30, UA661 arrived within 15 minutes of schedule 65% of the time. The median arrival delay was +5 min, and the worst 10% of flights arrived +82 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 111 | 65% |
| 16-30 min | 21 | 12% |
| 31-60 min | 14 | 8% |
| 61-120 min | 14 | 8% |
| 2+ hrs | 10 | 6% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 6 | 100% | 0 min |
| 2025-11 | 29 | 66% | +11 min |
| 2025-12 | 31 | 58% | +39 min |
| 2026-01 | 18 | 67% | +12 min |
| 2026-02 | 16 | 88% | -5 min |
| 2026-03 | 22 | 64% | +33 min |
| 2026-04 | 30 | 57% | +29 min |
| 2026-05 | 14 | 71% | +23 min |
| 2026-06 | 4 | 25% | +27 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 31 | 71% |
| Tue | 19 | 68% |
| Wed | 18 | 61% |
| Thu | 28 | 64% |
| Fri | 29 | 62% |
| Sat | 18 | 67% |
| Sun | 27 | 63% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…