Flight OddsUA737 SEA → SFO
United Airlines · Seattle, WA to San Francisco, CA · 362 flights observed, 2025-07-01 to 2026-06-30 · 679 mi
UA737 covers more than one route in the data window — the stats below are for SEA → SFO, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
61%
Median delay
+3 min
90th percentile
+84 min
Cancellation rate
1%
How often is UA737 on time?
Across 362 flights on SEA → SFO from 2025-07-01 to 2026-06-30, UA737 arrived within 15 minutes of schedule 61% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +84 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 | 219 | 61% |
| 16-30 min | 45 | 13% |
| 31-60 min | 47 | 13% |
| 61-120 min | 30 | 8% |
| 2+ hrs | 18 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 90% | +11 min |
| 2025-08 | 31 | 61% | +20 min |
| 2025-09 | 30 | 63% | +11 min |
| 2025-10 | 31 | 68% | +18 min |
| 2025-11 | 25 | 88% | -4 min |
| 2025-12 | 31 | 61% | +24 min |
| 2026-01 | 31 | 77% | +17 min |
| 2026-02 | 28 | 68% | +9 min |
| 2026-03 | 31 | 90% | -4 min |
| 2026-04 | 30 | 23% | +40 min |
| 2026-05 | 31 | 29% | +55 min |
| 2026-06 | 30 | 17% | +39 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 52 | 52% |
| Tue | 52 | 77% |
| Wed | 51 | 53% |
| Thu | 50 | 62% |
| Fri | 52 | 46% |
| Sat | 50 | 72% |
| Sun | 52 | 65% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…