Schedule: a typical Friday (the flights of Jul 31, 2026, re-dated). Real flights replace these once the FAA publishes them, usually about a day ahead.

UNITED · FLIGHT UA 2279 SCHEDULED · TYPICAL SCHEDULE

Friday, October 2 Tomorrow

UA 2279 · SFO → SEA

departs 4:38 PM PT · arrives 7:03 PM PT

Forecast issued Thu 4:00 PM ET · 28h before departure

Arrive at SEA more than 15 minutes late?

22% chance · ±1 pts −2 pts · 24h

HOW SURE WE ARE Moderate. The odds now blend history with early weather forecasts.

How late will it get to SEA?

On time or early
78%
15–30 min late
7%
30 min–1 hour late
9%
1–2 hours late
3%
Over 2 hours late
3%
Cancelled
<1%

Gate arrival compared with the scheduled arrival. The ranges add up to 100%.

What’s moving the odds

↑ 4pm departures from SFO are often late

↑ This flight has been late 24% of the time recently

↑ Later flights pick up delays from earlier in the day

↓ Mostly benign weather forecast at SFO

↓ Mostly benign weather forecast at SEA

Weather at each end

SFO (origin) Gusts8 kt Ceiling500 ft Visibility6 mi Precipnone

SEA (destination) Gusts8 kt Ceilingnone (clear) Visibility10+ mi Precipnone

How this resolves

Yes if the gate arrival is more than 15 minutes after the scheduled arrival. Cancelled or diverted flights resolve N/A.

Every question here is display only — there is no betting or money involved. Gate times come from the airline; a cancellation resolves only the “Cancelled?” question, and a diversion voids the delay questions.

UA 2279 · SFO → SEA

Odds over time

How late will it get to SEA?