UA5403 LAX → SEA

United Airlines · Los Angeles, CA to Seattle, WA · 58 flights observed, 2026-01-06 to 2026-03-04 · 954 mi

This flight has a strong track record — on time 95% of the time, with a low cancellation rate.

UA5403 covers more than one route in the data window — the stats below are for LAX → SEA, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
95%
Median delay
-26 min
90th percentile
+8 min
Cancellation rate
0%

How often is UA5403 on time?

Across 58 flights on LAX → SEA from 2026-01-06 to 2026-03-04, UA5403 arrived within 15 minutes of schedule 95% of the time. The median arrival delay was -26 min, and the worst 10% of flights arrived +8 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time5595%
16-30 min23%
31-60 min12%
61-120 min00%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2026-012696%-23 min
2026-022893%-22 min
2026-034100%-15 min

Performance by day of week

DayFlightsOn-time
Mon888%
Tue9100%
Wed9100%
Thu888%
Fri8100%
Sat888%
Sun8100%

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