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

San Francisco → Miami via Atlanta: arrives on time 59%

  1. 06:00 SFO → 13:40 ATL
    DL 570 · Delta · 4h 40m · 93% on time, 1.1% cancelled
  2. 1h 14m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 14:54 ATL → 17:00 MIA
    DL 1386 · Delta · 2h 06m · 63% on time, 1.5% cancelled

Total trip 8h 00m, scheduled departure to arrival (Miami is 3 h ahead of San Francisco). Times are local. Both flew on 56 of the last 56 days.

Makes the connection95%The first flight arrived more than 29 minutes late on 5% of the days it flew: too late for the 45-minute minimum connection on a 1h 14m layover.
Arrives on time59%First flight not cancelled (1.1% are) × connection made (95%) × second flight not cancelled (1.5% are) and within 15 minutes (63%).
Total trip8h 00mSFO 06:00 to MIA 17:00, 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.