UA861United Airlines · IAD → GRU
updated 2h ago
Route confirmed United Airlines

UA861 WashingtonIAD · 22:25 São PauloGRU · 10:20

UA861 by United Airlines flies from Washington (IAD) to São Paulo (GRU) for the Wed, Nov 4 departure.

Right nowEn route to São Paulo · off blocks 23:28 · 63 min late
12:41

estimated arrival at GRU · local time · ~48 min from now

En routeUA861 · position estimated
IADWashingtonGRUSão Paulo
Estimated from the boardsarr 12:41

Board estimate · gate and arrival times. Off blocks 23:28 · typical taxi-out at IAD ≈ 7.6 min. No receiver coverage over open ocean.

⚖ UA861 typically leaves +36 and lands +2. The air wins minutes back.
Typical gate push+36 minmedian posted departure
Typical arrival+2 minmedian over 14 operations
Wins back in air~34 minmedian gate push vs arrival · how planes make up time → Cancellation0 in 14tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+47+94+141 min
11-05
+90 gate · +141 arrival
11-04
+63 gate · +141 arrival
11-03
+36 gate · −17 arrival
11-02
+50 gate · +5 arrival
11-01
+36 gate · −13 arrival
10-31
+24 gate · −2 arrival
10-30
+102 gate · +28 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 +2 min · 0 cancelled · 14 operations tracked

The route today

live boards
IADWashingtonOn-time likelyIAD delay board →
GRUSão PauloOn-time likelyGRU delay board →
IAD→GRUevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
35%Chance of 15+ min delay
1.9%Chance of cancellation
+7 minTypical airport delay in this weather

Driven mainly by IAD (Washington), 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 Washington

Forecast

Fri 6 Nov, local date

High21°Clikely 19°C to 22°C
Low14°Clikely 11°C to 17°C
  • 44% 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.

Tomorrow at São Paulo

Forecast

Fri 6 Nov, local date

High27°Clikely 24°C to 30°C
Low19°Clikely 17°C to 21°C
  • 35% chance of thunder
  • 84% chance of rain

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 UA861 actually runs

Pro Flight Search has tracked every published board update for UA861 across the IAD and GRU boards: schedule changes, gate pushes and actual clocks. Usually lands ~8 min late. Based on 12 confirmed landings · 9/12 within 15 min of schedule. Pushes back late but makes up time in the air.

The verdict above is that record speaking, so it reflects how UA861 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
11-05IAD 23:30 01:00 (+90)GRU 10:20 12:41 (+141)
11-04IAD 22:25 23:28 (+63)GRU 10:20 12:41 (+141)
11-03IAD 22:25 23:01 (+36)GRU 10:20 10:03 (−17)
11-02IAD 22:25 23:15 (+50)GRU 10:20 10:25 (+5)
11-01IAD 22:25 23:01 (+36)GRU 10:20 10:07 (−13)
10-31IAD 23:30 23:54 (+24)GRU 10:20 10:18 (−2)
10-30IAD 23:30 01:12 (+102)GRU 10:20 10:48 (+28)
10-29IAD 23:30 01:00 (+90)GRU 10:20 11:12 (+52)
10-28IAD 23:30 23:51 (+21)GRU 10:20 10:00 (−20)
10-27IAD 23:30 23:45 (+15)GRU 10:20 09:59 (−21)
10-26IAD 23:30 23:55 (+25)GRU 10:20 10:08 (−12)
10-25IAD 23:30 00:58 (+88)GRU 10:20 11:16 (+56)
10-24IAD 23:30 23:54 (+24)GRU 09:30 09:14 (−16)
10-23IAD GRU 09:30 09:35 (+5)

Aircraft

Recent tails: N76062, N67058, N647UA, N59053.

Board clocks recorded as IAD and GRU published them.

Planning around UA861? 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: UA861 Washington to São Paulo on-time performance, measured from the IAD and GRU airport boards.

Canonical URL
https://proflightsearch.com/flight/UA861
How we measure this →