UA4183United Airlines · EWR → BUF
live · 2h ago
Route confirmed United Airlines

UA4183 New YorkEWR · 08:30 BuffaloBUF · 09:55

UA4183 by United Airlines flies from New York (EWR) to Buffalo (BUF) for the Tue, Aug 18 departure.

Right nowLanded in Buffalo · today
09:34

arrived at BUF · 21 min early

⚖ UA4183 typically leaves +22 and lands −2. The air wins minutes back.
Typical gate push+22 minmedian posted departure
Typical arrival−2 minmedian over 8 operations
Wins back in air~24 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 7 operations · gate push → arrival
0+60+121+181 min
08-18
+15 gate · −21 arrival
08-17
+181 gate · +145 arrival
08-16
+44 gate · +13 arrival
08-15
+31 gate · −2 arrival
08-14
+22 gate · −4 arrival
08-13
+15 gate · +23 arrival
08-12
+11 gate · −14 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 · 8 operations tracked

The route today

live boards
EWRNew YorkOn-time likelyEWR delay board →
BUFBuffaloOn-time likelyBUF delay board →
EWR→BUFevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
45%Chance of 15+ min delay
4.4%Chance of cancellation
+16 minAvg hub delay right now

Conditions at EWR and BUF are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. 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 New York to Buffalo flights today

same route · United Airlines
UA3529departs 08:25
UA3607departs 16:37
UA4185departs 17:16
UA3476departs 21:25
UA4187departs 21:30

If UA4183 is cancelled, these are the other United Airlines nonstop flights from New York to Buffalo on the same day, with scheduled departure times in EWR local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How UA4183 actually runs

Pro Flight Search has tracked every published board update for UA4183 across the EWR and BUF boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 8 confirmed landings · 6/8 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 UA4183 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
08-18EWR 08:30 08:45 (+15)BUF 09:55 09:34 (−21)
08-17EWR 08:30 11:31 (+181)BUF 09:55 12:20 (+145)
08-16EWR 08:30 09:14 (+44)BUF 09:55 10:08 (+13)
08-15EWR 08:30 09:01 (+31)BUF 09:55 09:53 (−2)
08-14EWR 08:30 08:52 (+22)BUF 09:55 09:51 (−4)
08-13EWR 08:30 08:45 (+15)BUF 09:55 10:18 (+23)
08-12EWR 08:30 08:41 (+11)BUF 09:55 09:41 (−14)
08-11EWR 08:30 08:52 (+22)BUF 09:55 09:45 (−10)

Aircraft

Recent tails: N545GJ, N580GJ, N541GJ, N503GJ.

Board clocks recorded as EWR and BUF published them.

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 — UA4183 New York to Buffalo on-time performance, measured from the EWR and BUF airport boards.

Canonical URL
https://proflightsearch.com/flight/UA4183
How we measure this →