UA599United Airlines · SFO → DEN
live · 18m ago
Route confirmed United Airlines

UA599 San FranciscoSFO · 08:10 DenverDEN · 16:14

UA599 by United Airlines flies from San Francisco (SFO) to Denver (DEN) for the Fri, Oct 23 departure.

Same number through SFO → IAD → DEN

Right nowOn Time · gate F14
08:10

departs SFO · on schedule

Typical gate push−1 minmedian posted departure

Where the minutes go

last 3 operations · gate push → arrival
0+30+60+90 min
10-22
+7 gate
10-21
−4 gate
10-20
−1 gate

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

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
56%Chance of 15+ min delay
3.5%Chance of cancellation
+25 minAvg hub delay right now

Driven mainly by SFO (San Francisco), currently flying MVFR (marginal 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 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
UA2861departs 06:45
UA336departs 10:50
UA755departs 12:45
UA1791departs 13:50
UA8110departs 16:35
UA1453departs 16:51

If UA599 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 posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How UA599 actually runs

Pro Flight Search has tracked every published board update for UA599 across the SFO and DEN boards: schedule changes, gate pushes and actual clocks. Usually lands ~105 min late. Based on 4 confirmed landings · 2/4 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how UA599 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocksaircraft

Board log

scheduled → actual, per operation
10-22SFO 08:10 08:17 (+7)DEN
10-21SFO 08:10 08:06 (−4)DEN
10-20SFO 08:10 08:09 (−1)DEN

Aircraft

Recent tails: N19986, N66841, N67815.

Board clocks recorded as SFO and DEN published them.

Planning around UA599? 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 — UA599 San Francisco to Denver on-time performance, measured from the SFO and DEN airport boards.

Canonical URL
https://proflightsearch.com/flight/UA599
How we measure this →