UA5403 ChicagoORD · 13:55 Greenville/Greer/SpartanburgGSP
UA5403 by United Airlines flies from Chicago (ORD) to Greenville/Greer/Spartanburg (GSP).
scheduled from ORD
Where the minutes go
last 6 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operation0 cancelled · 6 operations tracked
The route today
live boardsWhen it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Chicago to Greenville/Greer/Spartanburg flights today
same route · United AirlinesIf UA5403 is cancelled, these are the other United Airlines nonstop flights from Chicago to Greenville/Greer/Spartanburg on the same day, with scheduled departure times in ORD local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA5403 actually runs
Pro Flight Search has tracked every published board update for UA5403 across the ORD and GSP boards: schedule changes, gate pushes and actual clocks. Usually departs ~7 min early. Based on 6 confirmed departures · 6/6 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how UA5403 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 ORD and GSP published them.
Planning around UA5403? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA5403 Chicago to Greenville/Greer/Spartanburg on-time performance, measured from the ORD and GSP airport boards.
https://proflightsearch.com/flight/UA5403
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