AC688Air Canada · STL → YUL
updated 1h ago
Route confirmed Air Canada

AC688 St LouisSTL MontréalYUL

AC688 by Air Canada flies from St Louis (STL) to Montréal (YUL).

Right nowNext departure today Operates daily
08:50

scheduled from STL

The route today

live boards
STLSt LouisOn-time likelySTL delay board →
YULMontréalHigh riskYUL delay board →
STL→YULevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
39%Chance of 15+ min delay
4.5%Chance of cancellation
+8 minTypical airport delay in this weather

Conditions at STL and YUL are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. 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 STL

Forecast

Sun 8 Nov, local date

High15°Clikely 13°C to 17°C
Low3°Clikely 1°C to 5°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.

Tomorrow at YUL

Forecast

Sun 8 Nov, local date

High9°Clikely 8°C to 11°C
Low5°Clikely 3°C to 6°C
  • 71% 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.

Other St Louis to Montréal flights today

same route · Air Canada
AC8688departs 12:10

If AC688 is cancelled, this is the other Air Canada nonstop flight from St Louis to Montréal on the same day, with scheduled departure times in STL 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 AC688 actually runs

Pro Flight Search has tracked every published board update for AC688 across the STL and YUL boards: schedule changes, gate pushes and actual clocks. Combined risk score: 50.0/100. Based on airport operations, weather, and cached board history at STL and YUL.

The verdict above is that record speaking, so it reflects how AC688 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Planning around AC688? 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: AC688 St Louis to Montréal on-time performance, measured from the STL and YUL airport boards.

Canonical URL
https://proflightsearch.com/flight/AC688
How we measure this →