UA 1553 then AS 9921 at LAX
San José (Costa Rica) → Los Angeles → Phoenix Sky Harbor
Timetable, Los Angeles time
11:08UA 1553 from San José (Costa Rica) at the gate
20:45AS 9921 to Phoenix Sky Harbor leaves the gate
9 h 37 apart on the timetable
The last days
UA 1553 and AS 9921 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.