UA5510 San FranciscoSFO · 10:10 CarlsbadCLD
UA5510 by United Airlines flies from San Francisco (SFO) to Carlsbad (CLD) for the Mon, Oct 26 departure.
departs SFO · on schedule
board checked 17m ago · checking again in 45s
Where the minutes go
last 4 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The route today
live boardsWhen it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other San Francisco to Carlsbad flights today
same route · United AirlinesIf UA5510 is cancelled, this is the other United Airlines nonstop flight from San Francisco to Carlsbad on the same day, with scheduled departure times in SFO local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA5510 actually runs
Pro Flight Search has tracked every published board update for UA5510 across the SFO and CLD boards: schedule changes, gate pushes and actual clocks. Usually departs on time. Based on 4 confirmed departures · 4/4 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how UA5510 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as SFO and CLD published them.
Planning around UA5510? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — UA5510 San Francisco to Carlsbad on-time performance, measured from the SFO and CLD airport boards.
https://proflightsearch.com/flight/UA5510
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