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

Dulles → San Jose via Atlanta: arrives on time 83%

  1. 06:00 IAD → 07:46 ATL
    DL 2127 · Delta · 1h 46m · 90% on time, 2.6% cancelled
  2. 1h 54m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 09:40 ATL → 11:36 SJC
    DL 809 · Delta · 4h 56m · 90% on time, 1.1% cancelled

Total trip 8h 36m, scheduled departure to arrival (San Jose is 3 h behind Dulles). Times are local. Both flew on 56 of the last 56 days.

Makes the connection96%The first flight arrived more than 69 minutes late on 4% of the days it flew: too late for the 45-minute minimum connection on a 1h 54m layover.
Arrives on time83%First flight not cancelled (2.6% are) × connection made (96%) × second flight not cancelled (1.1% are) and within 15 minutes (90%).
Total trip8h 36mIAD 06:00 to SJC 11:36, 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.