UA4172United Airlines · EWR → DCA
live · 4m ago
Route confirmed United Airlines

UA4172 New YorkEWR · 11:00 WashingtonDCA · 12:29

UA4172 by United Airlines flies from New York (EWR) to Washington (DCA) for the Thu, Nov 12 departure.

Right nowEn route to Washington · off blocks 10:50 · 10 min early
12:30

estimated arrival at DCA · local time · landing about now

En routeUA4172 · position estimated
EWRNew YorkDCAWashington
Estimated from the boardsarr 12:30

Board estimate · gate and arrival times. Off blocks 10:50 · typical taxi-out at EWR ≈ 9.1 min.

⚖ UA4172 typically leaves −6 and lands −23. The air wins minutes back.
Typical gate push−6 minmedian posted departure
Typical arrival−23 minmedian over 14 operations
Wins back in air~17 minmedian gate push vs arrival · how planes make up time → Cancellation1 in 15tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+72+145+217 min
11-12
−10 gate · +1 arrival
11-11
−9 gate · −40 arrival
11-10
−5 gate · −21 arrival
11-09
−2 gate · −23 arrival
11-08
−8 gate · −24 arrival
11-07
−8 gate · −19 arrival
11-06
CANCELLED

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 −23 min · 1 cancelled · 15 operations tracked

The route today

live boards
EWRNew YorkOn-time likelyEWR delay board →
DCAWashingtonOn-time likelyDCA delay board →
EWR→DCAevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
40%Chance of 15+ min delay
3.0%Chance of cancellation
+8 minTypical airport delay in this weather

Driven mainly by EWR (New York), currently flying IFR (instrument). 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 New York

Forecast

Fri 13 Nov, local date

High9°Clikely 8°C to 10°C
Low5°Clikely 3°C to 7°C
  • 97% 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.

Tomorrow at Washington

Forecast

Fri 13 Nov, local date

High10°Clikely 9°C to 11°C
Low6°Clikely 5°C to 8°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.

Other New York to Washington flights today

same route · United Airlines
UA4434departs 06:55
UA4500departs 08:00
UA4444departs 08:55
UA4499departs 12:59
UA4433departs 14:00
UA4486departs 15:00

If UA4172 is cancelled, these are the other United Airlines nonstop flights from New York to Washington on the same day, with scheduled departure times in EWR 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 UA4172 actually runs

Pro Flight Search has tracked every published board update for UA4172 across the EWR and DCA boards: schedule changes, gate pushes and actual clocks. Usually lands ~21 min early. Based on 13 confirmed landings · 10/13 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 UA4172 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
11-12EWR 11:00 10:50 (−10)DCA 12:29 12:30 (+1)
11-11EWR 11:00 10:51 (−9)DCA 12:29 11:49 (−40)
11-10EWR 11:00 10:55 (−5)DCA 12:29 12:08 (−21)
11-09EWR 11:00 10:58 (−2)DCA 12:29 12:06 (−23)
11-08EWR 11:00 10:52 (−8)DCA 12:29 12:05 (−24)
11-07EWR 11:00 10:52 (−8)DCA 12:29 12:10 (−19)
11-06CANCELLED
11-05EWR 11:00 10:52 (−8)DCA 12:29 11:50 (−39)
11-04EWR 11:00 10:53 (−7)DCA 12:29 11:52 (−37)
11-03EWR 11:00 11:52 (+52)DCA 12:29 13:14 (+45)
11-02EWR 11:00 10:52 (−8)DCA 12:29 12:05 (−24)
11-01EWR 11:00 14:07 (+187)DCA 12:29 15:15 (+166)
10-31EWR 11:00 10:54 (−6)DCA 12:29 11:57 (−32)
10-30EWR 11:00 10:57 (−3)DCA 12:29 11:51 (−38)
10-29EWR 11:00 13:17 (+137)DCA 12:29 13:58 (+89)

Aircraft

Recent tails: N508GJ, N524GJ, N516GJ, N569GJ.

Board clocks recorded as EWR and DCA published them.

Planning around UA4172? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

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Suggested citation

Pro Flight Search: UA4172 New York to Washington on-time performance, measured from the EWR and DCA airport boards.

Canonical URL
https://proflightsearch.com/flight/UA4172
How we measure this →