UA870United Airlines · SYD → SFO
live · 4m ago
Route confirmed United Airlines

UA870 SydneySYD · 11:50 San FranciscoSFO · 06:25

UA870 by United Airlines flies from Sydney (SYD) to San Francisco (SFO) for the Thu, Nov 5 departure.

Right nowBoarding · today
11:50

departs SYD · on schedule

Typical gate push+0 minmedian posted departure
Typical arrival+58 minmedian over 5 operations

Where the minutes go

last 5 operations · gate push → arrival
0+30+60+90 min
11-05
+58 arrival
11-04
+80 gate · +58 arrival
11-03
+0 gate · +58 arrival
11-02
+0 gate · +8 arrival
11-01
+0 gate · −15 arrival

The 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 operation

median arrival +58 min · 0 cancelled · 5 operations tracked

The route today

live boards
SYDSydneyOn-time likelySYD delay board →
SFOSan FranciscoOn-time likelySFO delay board →
SYD→SFOevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
44%Chance of 15+ min delay
2.5%Chance of cancellation
+11 minTypical airport delay in this weather

Conditions at SYD and SFO are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. 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 Sydney

Forecast

Fri 6 Nov, local date

High24°Clikely 22°C to 25°C
Low15°Clikely 14°C to 17°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 San Francisco

Forecast

Thu 5 Nov, local date

High20°Clikely 19°C to 21°C
Low12°Clikely 11°C to 13°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.

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.

How UA870 actually runs

Pro Flight Search has tracked every published board update for UA870 across the SYD and SFO boards: schedule changes, gate pushes and actual clocks. Usually lands ~58 min late. Based on 5 confirmed landings · 2/5 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how UA870 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
11-05SYD 11:50SFO 06:25 07:23 (+58)
11-04SYD 11:50 13:10 (+80)SFO 06:25 07:23 (+58)
11-03SYD 11:50 (+0)SFO 06:25 07:23 (+58)
11-02SYD 11:50 (+0)SFO 06:25 06:33 (+8)
11-01SYD 11:50 (+0)SFO 06:25 06:10 (−15)

Board clocks recorded as SYD and SFO published them.

Planning around UA870? 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: UA870 Sydney to San Francisco on-time performance, measured from the SYD and SFO airport boards.

Canonical URL
https://proflightsearch.com/flight/UA870
How we measure this →