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

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

  1. 12:46 SJC → 20:35 ATL
    DL 809 · Delta · 4h 49m · 91% on time, 0.8% cancelled
  2. 2h 18m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 22:53 ATL → 00:44 IAD +1 day
    DL 2549 · Delta · 1h 51m · 75% on time, 2.1% cancelled

Total trip 8h 58m, scheduled departure to arrival (Dulles is 3 h ahead of San Jose). Times are local. Both flew on 56 of the last 56 days.

Makes the connection99%The first flight arrived more than 93 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 2h 18m layover.
Arrives on time72%First flight not cancelled (0.8% are) × connection made (99%) × second flight not cancelled (2.1% are) and within 15 minutes (75%).
Total trip8h 58mSJC 12:46 to IAD 00:44, 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.