UA1339 DenverDEN · 09:46 San JuanSJU · 17:38
UA1339 by United Airlines flies from Denver (DEN) to San Juan (SJU).
scheduled from DEN
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at DEN and SJU 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.
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.
How UA1339 actually runs
Pro Flight Search has tracked every published board update for UA1339 across the DEN and SJU boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: landed +42 min. Not enough to call it.
The verdict above is that record speaking, so it reflects how UA1339 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: N17349, N47360.
Board clocks recorded as DEN and SJU published them.
Planning around UA1339? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — UA1339 Denver to San Juan on-time performance, measured from the DEN and SJU airport boards.
https://proflightsearch.com/flight/UA1339
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