Connection · one ticket · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Dulles → Phoenix via Salt Lake City: arrives on time 80%

07:15 IAD → 09:52 SLC

DL 432 · Delta · 4h 37m · 85% on time, 1.6% cancelled
1h 38m layover in Salt Lake City (SLC) · 45 min minimum on one ticket
11:30 SLC → 12:12 PHX

DL 1431 · Delta · 1h 44m · 86% on time, 0.3% cancelled

Total trip 7h 59m, scheduled departure to arrival (Phoenix is 3 h behind Dulles). Times are local. Both flew on 56 of the last 56 days.

Makes the connection94%The first flight arrived more than 53 minutes late on 6% of the days it flew: too late for the 45-minute minimum connection on a 1h 38m layover.

Arrives on time80%First flight not cancelled (1.6% are) × connection made (94%) × second flight not cancelled (0.3% are) and within 15 minutes (86%).

Total trip7h 59mIAD 07:15 to PHX 12:12, layover included

Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.