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

Dulles → Columbia via Atlanta: arrives on time 53%

  1. 15:02 IAD → 16:54 ATL
    DL 2135 · Delta · 1h 52m · 73% on time, 0.0% cancelled
  2. 52m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 17:46 ATL → 18:51 CAE
    DL 2193 · Delta · 1h 05m · 78% on time, 1.2% cancelled

Total trip 3h 49m, scheduled departure to arrival. Times are local. Both flew on 10 of the last 56 days, too few to list among the best connections.

Makes the connection69%The first flight arrived more than 7 minutes late on 31% of the days it flew: too late for the 45-minute minimum connection on a 52m layover.
Arrives on time53%First flight not cancelled (0.0% are) × connection made (69%) × second flight not cancelled (1.2% are) and within 15 minutes (78%).
Total trip3h 49mIAD 15:02 to CAE 18:51, layover included

Tight connection: often missed. The first flight is late enough to miss it on more than 1 day in 4.

Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.