SY8140 IndianapolisIND St LouisSTL
SY8140 by Sun Country Airlines flies from Indianapolis (IND) to St Louis (STL).
scheduled from IND
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at IND and STL 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 Indianapolis
ForecastSat 31 Oct, local date
- Chance a departure leaves 60+ min late
- 6.4%usually 6.8%
No cancellation outlook here: this airport's board does not publish cancellations reliably.
Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · Based on about 170 departures a day. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
Tomorrow at St Louis
ForecastSat 31 Oct, local date
- Chance a departure is cancelled
- 0.4%usually 0.5%
- Chance a departure leaves 60+ min late
- 7.6%usually 8.5%
Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · Based on about 200 departures a day. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Indianapolis to St Louis flights
same route · Sun Country AirlinesIf SY8140 is cancelled, this is the other Sun Country Airlines nonstop flight from Indianapolis to St Louis, with scheduled departure times in IND 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 SY8140 actually runs
Pro Flight Search has tracked every published board update for SY8140 across the IND and STL boards: schedule changes, gate pushes and actual clocks. Combined risk score: 3.7/100. Based on airport operations, weather, and cached board history at IND and STL.
The verdict above is that record speaking, so it reflects how SY8140 operates rather than what the timetable promises. Numbers refresh as new flights operate.
Planning around SY8140? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search: SY8140 Indianapolis to St Louis on-time performance, measured from the IND and STL airport boards.
https://proflightsearch.com/flight/SY8140
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