Flight OddsUA1801 ORD → SEA
United Airlines · Chicago, IL to Seattle, WA · 139 flights observed, 2026-02-12 to 2026-06-30 · 1,721 mi
UA1801 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
74%
Median delay
+2 min
90th percentile
+42 min
Cancellation rate
1%
How often is UA1801 on time?
Across 139 flights on ORD → SEA from 2026-02-12 to 2026-06-30, UA1801 arrived within 15 minutes of schedule 74% of the time. The median arrival delay was +2 min, and the worst 10% of flights arrived +42 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 | 102 | 74% |
| 16-30 min | 14 | 10% |
| 31-60 min | 16 | 12% |
| 61-120 min | 3 | 2% |
| 2+ hrs | 3 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-02 | 17 | 88% | -2 min |
| 2026-03 | 30 | 73% | +9 min |
| 2026-04 | 30 | 77% | +7 min |
| 2026-05 | 31 | 61% | +13 min |
| 2026-06 | 30 | 77% | +9 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 20 | 75% |
| Tue | 20 | 65% |
| Wed | 19 | 63% |
| Thu | 20 | 75% |
| Fri | 20 | 70% |
| Sat | 20 | 95% |
| Sun | 19 | 74% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…