UA521 EWR → FLL

United Airlines · Newark, NJ to Fort Lauderdale, FL · 19 flights observed, 2025-12-18 to 2026-01-05 · 1,065 mi

This flight has been getting more reliable recently — 2026-01's on-time rate (100%) is well above the 69% average from earlier months.

UA521 covers more than one route in the data window — the stats below are for EWR → FLL, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
78%
Median delay
-3 min
90th percentile
+36 min
Cancellation rate
5%

How often is UA521 on time?

Across 19 flights on EWR → FLL from 2025-12-18 to 2026-01-05, UA521 arrived within 15 minutes of schedule 78% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +36 min or later. 5% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time1478%
16-30 min16%
31-60 min211%
61-120 min16%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-121369%+2 min
2026-015100%0 min

Performance by day of week

DayFlightsOn-time
Mon367%
Tue2100%
Wed2100%
Thu367%
Fri2100%
Sat3100%
Sun333%

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