UA5663 SEA → LAX

United Airlines · Seattle, WA to Los Angeles, CA · 37 flights observed, 2026-01-06 to 2026-02-11 · 954 mi

UA5663 covers more than one route in the data window — the stats below are for SEA → LAX, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
92%
Median delay
-10 min
90th percentile
+9 min
Cancellation rate
0%

How often is UA5663 on time?

Across 37 flights on SEA → LAX from 2026-01-06 to 2026-02-11, UA5663 arrived within 15 minutes of schedule 92% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +9 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time3492%
16-30 min13%
31-60 min13%
61-120 min00%
2+ hrs13%

Performance by month

MonthFlightsOn-timeAvg delay
2026-012692%-4 min
2026-021191%-11 min

Performance by day of week

DayFlightsOn-time
Mon5100%
Tue6100%
Wed667%
Thu5100%
Fri5100%
Sat580%
Sun5100%

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