UA1635 SEA → LAX

United Airlines · Seattle, WA to Los Angeles, CA · 25 flights observed, 2026-05-21 to 2026-06-22 · 954 mi

This flight has a strong track record — on time 92% of the time, with a low cancellation rate.

UA1635 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
-6 min
90th percentile
+10 min
Cancellation rate
0%

How often is UA1635 on time?

Across 25 flights on SEA → LAX from 2026-05-21 to 2026-06-22, UA1635 arrived within 15 minutes of schedule 92% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +10 min or later. 0% of flights were cancelled.

Delay distribution

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

ArrivalFlightsShare
Early / on-time2392%
16-30 min14%
31-60 min00%
61-120 min00%
2+ hrs14%

Performance by month

MonthFlightsOn-timeAvg delay
2026-05978%+22 min
2026-0616100%-10 min

Performance by day of week

DayFlightsOn-time
Mon5100%
TueNo data—
WedNo data—
Thu580%
Fri5100%
Sat580%
Sun5100%

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