UA 3453 then BR 659 at Toronto Pearson
Washington → Toronto → Anchorage
Timetable, Toronto time
19:01UA 3453 from Washington at the gate
18:47BR 659 to Anchorage leaves the gate
23 h 46 apart on the timetable, overnight
BR 659 leaves 23 h 46 after UA 3453 arrives on the timetable: more than half a day, so not a connection we count.