UA4434United Airlines · EWR → BUF
live · 4m ago
Route confirmed United Airlines

UA4434 New YorkEWR · 17:30 BuffaloBUF · 19:12

UA4434 by United Airlines flies from New York (EWR) to Buffalo (BUF).

Right nowNext departure today Operates daily
17:30

scheduled from EWR

⚖ UA4434 typically leaves −4 and lands −25. The air wins minutes back.

Where the minutes go

last 7 operations · gate push → arrival
0+42+83+125 min
10-26
−4 gate · −19 arrival
10-24
−8 gate · −44 arrival
10-23
−4 gate · −43 arrival
10-22
−7 gate · −41 arrival
10-21
+125 gate · +83 arrival
10-20
−10 gate · −45 arrival
10-19
−4 gate · −19 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 −25 min · 1 cancelled · 14 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
37%Chance of 15+ min delay
3.8%Chance of cancellation
+9 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
UA4417departs 08:30
UA3529departs 08:40
UA4187departs 13:46
UA4570departs 18:35
UA3433departs 21:20
UA1213departs 21:29

If UA4434 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 UA4434 actually runs

Pro Flight Search has tracked every published board update for UA4434 across the EWR and BUF boards: schedule changes, gate pushes and actual clocks. Usually lands ~7 min early. Based on 13 confirmed landings · 9/13 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how UA4434 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
10-26EWR 17:30 17:26 (−4)BUF 19:12 18:53 (−19)
10-24EWR 17:30 17:22 (−8)BUF 19:12 18:28 (−44)
10-23EWR 17:30 17:26 (−4)BUF 19:12 18:29 (−43)
10-22EWR 17:30 17:23 (−7)BUF 19:12 18:31 (−41)
10-21EWR 17:30 19:35 (+125)BUF 19:12 20:35 (+83)
10-20EWR 17:30 17:20 (−10)BUF 19:12 18:27 (−45)
10-19EWR 17:30 17:26 (−4)BUF 19:12 18:53 (−19)
10-18EWR 17:30 17:49 (+19)BUF 19:12 19:11 (−1)
10-17EWR 17:30 19:31 (+121)BUF 19:12 20:50 (+98)
10-16CANCELLED
10-15EWR 17:30 18:15 (+45)BUF 19:12 19:50 (+38)
10-14EWR 17:30 17:20 (−10)BUF 19:12 18:46 (−26)
10-13EWR 17:30 17:20 (−10)BUF 19:12 18:26 (−46)
10-12EWR 17:30 17:20 (−10)BUF 19:12 18:47 (−25)

Aircraft

Recent tails: N506GJ, N524GJ, N578GJ, N516GJ.

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 — UA4434 New York to Buffalo on-time performance, measured from the EWR and BUF airport boards.

Canonical URL
https://proflightsearch.com/flight/UA4434
How we measure this →