UA2378 ORD → LAX

United Airlines · Chicago, IL to Los Angeles, CA · 104 flights observed, 2025-07-01 to 2026-01-05 · 1,744 mi

This flight's scheduled flight time has grown by 16 min since 2025-07 — some of the on-time performance may reflect a more generous published schedule, not a faster or more reliable flight.

UA2378 covers more than one route in the data window — the stats below are for ORD → LAX, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
72%
Median delay
+3 min
90th percentile
+44 min
Cancellation rate
1%

How often is UA2378 on time?

Across 104 flights on ORD → LAX from 2025-07-01 to 2026-01-05, UA2378 arrived within 15 minutes of schedule 72% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +44 min or later. 1% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time7472%
16-30 min1111%
31-60 min99%
61-120 min44%
2+ hrs55%

Performance by month

MonthFlightsOn-timeAvg delay
2025-072572%+18 min
2025-082365%+14 min
2025-092190%-3 min
2025-101553%+26 min
2025-121479%+5 min
2026-01560%+3 min

Performance by day of week

DayFlightsOn-time
Mon1968%
Tue978%
Wed1573%
Thu1974%
Fri1984%
Sat475%
Sun1856%

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