Flight OddsUA1340 SEA → ORD
United Airlines · Seattle, WA to Chicago, IL · 18 flights observed, 2025-08-01 to 2025-08-18 · 1,721 mi
UA1340 covers more than one route in the data window — the stats below are for SEA → ORD, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
83%
Median delay
+1 min
90th percentile
+78 min
Cancellation rate
0%
How often is UA1340 on time?
Across 18 flights on SEA → ORD from 2025-08-01 to 2025-08-18, UA1340 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +78 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 | 15 | 83% |
| 16-30 min | 0 | 0% |
| 31-60 min | 1 | 6% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 2 | 11% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 18 | 83% | +16 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 67% |
| Tue | 2 | 50% |
| Wed | 2 | 50% |
| Thu | 2 | 100% |
| Fri | 3 | 100% |
| Sat | 3 | 100% |
| Sun | 3 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…