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

Chicago → Miami via Atlanta: arrives on time 53%

  1. 11:05 MDW → 14:01 ATL
    DL 1063 · Delta · 1h 56m · 90% on time, 2.7% cancelled
  2. 53m 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 4h 55m, scheduled departure to arrival (Miami is 1 h ahead of Chicago). Times are local. Both flew on 56 of the last 56 days.

Makes the connection88%The first flight arrived more than 8 minutes late on 12% of the days it flew: too late for the 45-minute minimum connection on a 53m layover.
Arrives on time53%First flight not cancelled (2.7% are) × connection made (88%) × second flight not cancelled (1.5% are) and within 15 minutes (63%).
Total trip4h 55mMDW 11:05 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.