Flight OddsUA5424 SFO → SEA
United Airlines · San Francisco, CA to Seattle, WA · 9 flights observed, 2026-06-02 to 2026-06-23 · 679 mi
UA5424 covers more than one route in the data window — the stats below are for SFO → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
44%
Median delay
+23 min
90th percentile
+38 min
Cancellation rate
0%
How often is UA5424 on time?
Across 9 flights on SFO → SEA from 2026-06-02 to 2026-06-23, UA5424 arrived within 15 minutes of schedule 44% of the time. The median arrival delay was +23 min, and the worst 10% of flights arrived +38 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 | 4 | 44% |
| 16-30 min | 3 | 33% |
| 31-60 min | 2 | 22% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-06 | 9 | 44% | +12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | No data | — |
| Tue | 4 | 50% |
| Wed | 3 | 33% |
| Thu | No data | — |
| Fri | No data | — |
| Sat | No data | — |
| Sun | 2 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…