UA5521 SCE → ORD

United Airlines · State College, PA to Chicago, IL · 35 flights observed, 2026-05-21 to 2026-06-24 · 528 mi

This flight's reliability varies a lot by day of week — 100% on-time on Tuesdays vs. 60% on Mondays.

UA5521 covers more than one route in the data window — the stats below are for SCE → ORD, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
88%
Median delay
-8 min
90th percentile
+25 min
Cancellation rate
0%

How often is UA5521 on time?

Across 35 flights on SCE → ORD from 2026-05-21 to 2026-06-24, UA5521 arrived within 15 minutes of schedule 88% of the time. The median arrival delay was -8 min, and the worst 10% of flights arrived +25 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3088%
16-30 min00%
31-60 min13%
61-120 min00%
2+ hrs39%

Performance by month

MonthFlightsOn-timeAvg delay
2026-051173%+42 min
2026-062396%-4 min

Performance by day of week

DayFlightsOn-time
Mon560%
Tue5100%
Wed4100%
Thu5100%
Fri5100%
Sat580%
Sun580%

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