UA1603 Las VegasLAS · 18:05 AtlantaATL · 19:53
UA1603 by United Airlines flies from Las Vegas (LAS) to Atlanta (ATL) for the Tue, Sep 8 departure.
Same number through LAS → SFO → ATL
departs LAS · on schedule
board checked 15m ago · checking again in 45s
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at LAS and ATL are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days. This route's tracked sample is still thin — treat these as an early read, not a precise forecast.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Las Vegas to Atlanta flights today
same route · United AirlinesIf UA1603 is cancelled, these are the other United Airlines nonstop flights from Las Vegas to Atlanta on the same day, with scheduled departure times in LAS local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA1603 actually runs
Pro Flight Search has tracked every published board update for UA1603 across the LAS and ATL boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 1 completed leg so far: landed +16 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA1603 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 LAS and ATL published them.
Planning around UA1603? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA1603 Las Vegas to Atlanta on-time performance, measured from the LAS and ATL airport boards.
https://proflightsearch.com/flight/UA1603
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