DL4123 AUS → DEN

Delta Air Lines · Austin, TX to Denver, CO · 36 flights observed, 2026-03-08 to 2026-04-12 · 775 mi

This flight's reliability varies a lot by day of week — 100% on-time on Mondays vs. 40% on Wednesdays.

DL4123 covers more than one route in the data window — the stats below are for AUS → DEN, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
81%
Median delay
-3 min
90th percentile
+58 min
Cancellation rate
0%

How often is DL4123 on time?

Across 36 flights on AUS → DEN from 2026-03-08 to 2026-04-12, DL4123 arrived within 15 minutes of schedule 81% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +58 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2981%
16-30 min13%
31-60 min38%
61-120 min13%
2+ hrs26%

Performance by month

MonthFlightsOn-timeAvg delay
2026-032471%+18 min
2026-0412100%-2 min

Performance by day of week

DayFlightsOn-time
Mon5100%
Tue5100%
Wed540%
Thu560%
Fri5100%
Sat580%
Sun683%

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