UA3906United Airlines · SFO → DEN
live · 55m ago
Route confirmed United Airlines

UA3906 San FranciscoSFO · 07:00 DenverDEN

UA3906 by United Airlines flies from San Francisco (SFO) to Denver (DEN).

Right nowNext departure today Operates daily
16:45

scheduled from SFO

The route today

live boards
SFOSan FranciscoModerate riskSFO delay board →
DENDenverOn-time likelyDEN delay board →
SFO→DENevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
57%Chance of 15+ min delay
2.0%Chance of cancellation
+24 minTypical airport delay in this weather

Driven mainly by SFO (San Francisco), currently flying MVFR (marginal visual). These figures come from both airports' records 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 →

Tomorrow at San Francisco

Forecast

Thu 5 Nov, local date

High21°Clikely 19°C to 22°C
Low12°Clikely 10°C to 14°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at Denver

Forecast

Thu 5 Nov, local date

High15°Clikely 12°C to 18°C
Low1°Clikely −1°C to 3°C
  • 27% chance of fog

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other San Francisco to Denver flights today

same route · United Airlines
UA1479departs 05:00
UA2042departs 06:16
UA1469departs 08:45
UA493departs 09:05
UA1604departs 10:45
UA743departs 12:35

If UA3906 is cancelled, these are the other United Airlines nonstop flights from San Francisco to Denver on the same day, with scheduled departure times in SFO local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How UA3906 actually runs

Pro Flight Search has tracked every published board update for UA3906 across the SFO and DEN boards: schedule changes, gate pushes and actual clocks. Early read: no clear pattern yet. Only 1 completed leg so far: departed +63 min. Not enough to call it.

The verdict above is that record speaking, so it reflects how UA3906 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
10-31SFO 07:00 08:03 (+63)DEN
10-22CANCELLED

Board clocks recorded as SFO and DEN published them.

Planning around UA3906? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: UA3906 San Francisco to Denver on-time performance, measured from the SFO and DEN airport boards.

Canonical URL
https://proflightsearch.com/flight/UA3906
How we measure this →