Flight OddsUA1660 ORD → SEA
United Airlines · Chicago, IL to Seattle, WA · 62 flights observed, 2026-04-30 to 2026-06-30 · 1,721 mi
UA1660 covers more than one route in the data window — the stats below are for ORD → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
87%
Median delay
-2 min
90th percentile
+23 min
Cancellation rate
0%
How often is UA1660 on time?
Across 62 flights on ORD → SEA from 2026-04-30 to 2026-06-30, UA1660 arrived within 15 minutes of schedule 87% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +23 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 | 54 | 87% |
| 16-30 min | 2 | 3% |
| 31-60 min | 4 | 6% |
| 61-120 min | 2 | 3% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 1 | 100% | +15 min |
| 2026-05 | 31 | 90% | -2 min |
| 2026-06 | 30 | 83% | -1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 9 | 78% |
| Tue | 9 | 100% |
| Wed | 8 | 88% |
| Thu | 9 | 89% |
| Fri | 9 | 100% |
| Sat | 9 | 67% |
| Sun | 9 | 89% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…