Flight OddsUA1303 IAD → SEA
United Airlines · Washington, DC to Seattle, WA · 24 flights observed, 2026-03-05 to 2026-03-28 · 2,305 mi
UA1303 covers more than one route in the data window — the stats below are for IAD → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
61%
Median delay
+11 min
90th percentile
+39 min
Cancellation rate
0%
How often is UA1303 on time?
Across 24 flights on IAD → SEA from 2026-03-05 to 2026-03-28, UA1303 arrived within 15 minutes of schedule 61% of the time. The median arrival delay was +11 min, and the worst 10% of flights arrived +39 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 | 14 | 61% |
| 16-30 min | 4 | 17% |
| 31-60 min | 3 | 13% |
| 61-120 min | 2 | 9% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-03 | 23 | 61% | +18 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 3 | 67% |
| Tue | 3 | 33% |
| Wed | 3 | 67% |
| Thu | 4 | 75% |
| Fri | 3 | 67% |
| Sat | 4 | 75% |
| Sun | 3 | 33% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…