UA2421: United flight 2421
San Antonio (SAT) → San Francisco (SFO) · departs 7:20a, lands 9:22a local · Mon, Tue, Wed, Thu, Fri, Sun
The timetable below has every scheduled departure; for today's flight, check United.
An estimate from the published timetable, not live tracking: it cannot know about delays, diversions or cancellations.
Live status at United →The route
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UA2421 timetable
Published departure and arrival times, each in its airport's local time, from the flights we sampled Oct 25–30.
| Route | Departs | Arrives | Scheduled | Days |
|---|---|---|---|---|
| SAT → SFOSan Antonio to San Francisco | 7:20a | 9:22a | 4h2m | Mon, Tue, Wed, Thu, Fri, Sun |
Flying back from San Francisco
United flies San Francisco to San Antonio nonstop 12 times a week, from 12:15p to 4:23p: 12:15p UA2365 · 4:23p UA2281 · every nonstop SFO → SAT →
How UA2421 ran in our sample
6 of 6 departures left within 15 minutes of schedule (Oct 25–30). Only flights that departed are counted: cancellations are not in our data.
Aircraft: Airbus A319 on 4 of 6; also Airbus A320 (2).
What time does UA2421 leave San Antonio?
UA2421 is scheduled to depart San Antonio (SAT) at 7:20a (Mon, Tue, Wed, Thu, Fri, Sun), San Antonio time, and to land in San Francisco (SFO) at about 9:22a local time, a scheduled 4h2m. Times are the published ones from the flights we sampled Oct 25–30; check United for today's.
What plane is UA2421?
Airbus A319 on 4 of the 6 UA2421 flights from SAT we sampled Oct 25–30; the rest were a Airbus A320. Airlines swap aircraft, so the plane on a given day can differ.
Does UA2421 fly every day?
In the week we sampled (Oct 25–30), UA2421 flew San Antonio to San Francisco on Mon, Tue, Wed, Thu, Fri, Sun.
Is UA2421 usually on time?
Of 6 UA2421 departures from SAT we sampled Oct 25–30, 6 left within 15 minutes of the scheduled time. That counts only flights that departed — cancellations are not in our data — and one week is a small sample, so treat it as a hint, not a rating.
More United flights from San Antonio
Timetable from United departures we observed; UA2421 is a United Airlines flight number, and Hop Nonstop is not affiliated with United. Schedules change — confirm with the airline before you travel.