UA2279 SFO → SEA

United Airlines · San Francisco, CA to Seattle, WA · 235 flights observed, 2025-10-26 to 2026-06-30 · 679 mi

This flight has been getting less reliable recently — 2026-06's on-time rate (57%) is well below the 84% average from earlier months.

UA2279 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
78%
Median delay
-9 min
90th percentile
+50 min
Cancellation rate
0%

How often is UA2279 on time?

Across 235 flights on SFO → SEA from 2025-10-26 to 2026-06-30, UA2279 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was -9 min, and the worst 10% of flights arrived +50 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time18478%
16-30 min156%
31-60 min146%
61-120 min136%
2+ hrs94%

Performance by month

MonthFlightsOn-timeAvg delay
2025-106100%-8 min
2025-112488%+6 min
2025-123174%+21 min
2026-012785%+4 min
2026-022584%+0 min
2026-033184%+1 min
2026-043083%-4 min
2026-053171%+12 min
2026-063057%+13 min

Performance by day of week

DayFlightsOn-time
Mon3675%
Tue3087%
Wed3474%
Thu3482%
Fri3569%
Sat3083%
Sun3681%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…