UA4059 IAD → AUS

United Airlines · Washington, DC to Austin, TX · 19 flights observed, 2025-12-18 to 2026-01-05 · 1,297 mi

This flight is usually on time, but has a real long-delay tail — typical (median) delay is -21 min, while the worst 10% run +50 min or later.

UA4059 covers more than one route in the data window — the stats below are for IAD → AUS, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
78%
Median delay
-21 min
90th percentile
+50 min
Cancellation rate
0%

How often is UA4059 on time?

Across 19 flights on IAD → AUS from 2025-12-18 to 2026-01-05, UA4059 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was -21 min, and the worst 10% of flights arrived +50 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1478%
16-30 min211%
31-60 min00%
61-120 min16%
2+ hrs16%

Performance by month

MonthFlightsOn-timeAvg delay
2025-121486%-17 min
2026-01450%+37 min

Performance by day of week

DayFlightsOn-time
Mon333%
Tue2100%
Wed2100%
Thu2100%
Fri367%
Sat3100%
Sun367%

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