UA4557 Greenville/Greer/SpartanburgGSP WashingtonIAD · 11:55
UA4557 by United Airlines flies from Greenville/Greer/Spartanburg (GSP) to Washington (IAD).
scheduled from GSP
The route today
live boardsWhen it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
How UA4557 actually runs
Pro Flight Search has tracked every published board update for UA4557 across the GSP and IAD boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: landed -26 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA4557 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: N511GJ.
Board clocks recorded as GSP and IAD published them.
Planning around UA4557? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA4557 Greenville/Greer/Spartanburg to Washington on-time performance, measured from the GSP and IAD airport boards.
https://proflightsearch.com/flight/UA4557
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