UA340 AtlantaATL · 08:50 DenverDEN · 10:13
UA340 by United Airlines flies from Atlanta (ATL) to Denver (DEN) for the Sat, Sep 12 departure.
arrived at DEN · 103 min late
Where the minutes go
last 7 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 operationmedian arrival +17 min · 0 cancelled · 8 operations tracked
The route today
live boardsWeather lens
Weather-conditioned outlook for this flight right now
Measured, 90-day sampleDriven mainly by DEN (Denver), currently flying VFR (visual). For this route and airline, under conditions like today's, over the last 90 days.
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 Atlanta to Denver flights today
same route · United AirlinesIf UA340 is cancelled, these are the other United Airlines nonstop flights from Atlanta to Denver on the same day, with scheduled departure times in ATL local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UA340 actually runs
Pro Flight Search has tracked every published board update for UA340 across the ATL and DEN boards: schedule changes, gate pushes and actual clocks. Usually lands ~17 min late. Based on 7 confirmed landings · 3/7 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how UA340 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: N17444, N17417, N47446, N37507.
Board clocks recorded as ATL and DEN published them.
Planning around UA340? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA340 Atlanta to Denver on-time performance, measured from the ATL and DEN airport boards.
https://proflightsearch.com/flight/UA340
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