UA8181United Airlines · LGA → YUL
live · 3h ago
Route confirmed United Airlines

UA8181 New YorkLGA · 08:45 MontréalYUL

UA8181 by United Airlines flies from New York (LGA) to Montréal (YUL) for the Tue, Sep 8 departure.

Right nowEn route to Montréal · off blocks 08:39 · 6 min early
En route

en route from LGA to YUL

En routeUA8181 · position estimated
LGANew YorkYULMontréal
Estimated from the boards

Board estimate · gate and arrival times. Off blocks 08:39 · typical taxi-out at LGA ≈ 12.3 min.

Typical gate push−6 minmedian posted departure
Cancellation2 in 13tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+55+111+166 min
09-09
−6 gate
09-08
−6 gate
09-07
−5 gate
09-06
−5 gate
09-04
−6 gate
09-03
+166 gate
09-02
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

2 cancelled · 13 operations tracked

The route today

live boards
LGANew YorkOn-time likelyLGA delay board →
YULMontréalOn-time likelyYUL delay board →
LGA→YULevery 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
9.6%Chance of cancellation
+12 minAvg hub delay right now

Conditions at LGA and YUL 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.

Under low visibility at LGA, United Airlines has historically cancelled ~17% of flights, vs 4.3% in clear conditions, over the trailing 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 Montréal flights

same route · United Airlines
UA8431departs 06:30 · Tue
UA8439departs 20:30 · Tue

If UA8181 is cancelled, these are the other United Airlines nonstop flights from New York to Montréal, with scheduled departure times in LGA local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →

How UA8181 actually runs

Pro Flight Search has tracked every published board update for UA8181 across the LGA and YUL boards: schedule changes, gate pushes and actual clocks. Usually departs ~6 min early. Based on 11 confirmed departures · 10/11 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how UA8181 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
09-09LGA 08:45 08:39 (−6)YUL
09-08LGA 08:45 08:39 (−6)YUL
09-07LGA 08:45 08:40 (−5)YUL
09-06LGA 08:45 08:40 (−5)YUL
09-04LGA 08:45 08:39 (−6)YUL
09-03LGA 08:45 11:31 (+166)YUL
09-02CANCELLED
09-01LGA 08:45 08:56 (+11)YUL
08-31LGA 08:45 08:33 (−12)YUL
08-30LGA 08:45 08:39 (−6)YUL
08-28LGA 08:45 08:57 (+12)YUL
08-27LGA 08:45 08:35 (−10)YUL
08-26CANCELLED

Board clocks recorded as LGA and YUL 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 — UA8181 New York to Montréal on-time performance, measured from the LGA and YUL airport boards.

Canonical URL
https://proflightsearch.com/flight/UA8181
How we measure this →