DL3731 AustinAUS · 19:20 IndianapolisIND · 23:03
DL3731 by Delta Air Lines flies from Austin (AUS) to Indianapolis (IND).
scheduled from AUS
Where the minutes go
last 4 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at AUS and IND 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 departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Austin to Indianapolis flights today
same route · Delta Air LinesIf DL3731 is cancelled, these are the other Delta Air Lines nonstop flights from Austin to Indianapolis on the same day, with scheduled departure times in AUS local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How DL3731 actually runs
Pro Flight Search has tracked every published board update for DL3731 across the AUS and IND boards: schedule changes, gate pushes and actual clocks. Usually lands ~7 min early. Based on 4 confirmed landings · 4/4 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 DL3731 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: N243SY, N324SY, N305SY, N325SY.
Board clocks recorded as AUS and IND published them.
Planning around DL3731? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — DL3731 Austin to Indianapolis on-time performance, measured from the AUS and IND airport boards.
https://proflightsearch.com/flight/DL3731
.