Schedule: a typical summer Sunday (the flights of Jul 26, 2026), re-dated. Real flights replace these once airlines file their FAA flight plans, usually about a day ahead.

UNITED · FLIGHT UA 1577 SCHEDULED · TYPICAL SCHEDULE

Sunday, October 4 Tomorrow

UA 1577 · SFO → SEA

departs 6:28 PM PT · arrives 8:53 PM PT

Forecast issued Sat 12:00 PM ET · 34h before departure

UA 1577 isn’t flying SFO → SEA on Sun, Oct 4

This listing came from a typical schedule. According to the FAA, UA 1577 flies these legs that day:

TYS → ORD · 10:51 AM · scheduled