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

Dulles → San Jose via Atlanta: arrives on time 72%

  1. 12:37 IAD → 14:34 ATL
    DL 1444 · Delta · 1h 56m · 83% on time, 3.6% cancelled
  2. 2h 34m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 17:08 ATL → 19:07 SJC
    DL 2136 · Delta · 4h 59m · 79% on time, 1.2% cancelled

Total trip 9h 30m, scheduled departure to arrival (San Jose is 3 h behind Dulles). Times are local. Both flew on 48 of the last 56 days.

Makes the connection96%The first flight arrived more than 109 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 2h 34m layover.
Arrives on time72%First flight not cancelled (3.6% are) × connection made (96%) × second flight not cancelled (1.2% are) and within 15 minutes (79%).
Total trip9h 30mIAD 12:37 to SJC 19:07, 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.