AS 2158 then UA 1453 at San Francisco
Portland (Oregon) → San Francisco → Washington
Timetable, San Francisco time
10:22AS 2158 from Portland (Oregon) at the gate
16:52UA 1453 to Washington leaves the gatealso VA 8383, NZ 9169
6 h 30 apart on the timetable
The last days
AS 2158 and UA 1453 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.