DL4179 DEN → AUS

Delta Air Lines · Denver, CO to Austin, TX · 41 flights observed, 2025-11-09 to 2025-12-19 · 775 mi

This flight's reliability varies a lot by day of week — 100% on-time on Mondays vs. 50% on Tuesdays.

DL4179 covers more than one route in the data window — the stats below are for DEN → AUS, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
76%
Median delay
-2 min
90th percentile
+93 min
Cancellation rate
0%

How often is DL4179 on time?

Across 41 flights on DEN → AUS from 2025-11-09 to 2025-12-19, DL4179 arrived within 15 minutes of schedule 76% of the time. The median arrival delay was -2 min, and the worst 10% of flights arrived +93 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time3176%
16-30 min37%
31-60 min12%
61-120 min25%
2+ hrs410%

Performance by month

MonthFlightsOn-timeAvg delay
2025-112291%0 min
2025-121958%+55 min

Performance by day of week

DayFlightsOn-time
Mon6100%
Tue650%
Wed683%
Thu650%
Fri667%
Sat5100%
Sun683%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…