tailodds FORECAST
Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

Dulles → Charleston via Atlanta: arrives on time 80%

  1. 08:15 IAD → 10:14 ATL
    UA 2739 · United · 1h 59m · 89% on time, 0.4% cancelled
  2. 2h 15m layover in Atlanta (ATL) · 90 min minimum on separate tickets
  3. 12:29 ATL → 13:41 CHS
    DL 2179 · Delta · 1h 12m · 87% on time, 2.5% cancelled

Total trip 5h 26m, scheduled departure to arrival. Times are local. Both flew on 31 of the last 56 days.

Makes the connection95%The first flight arrived more than 45 minutes late on 5% of the days it flew: too late for the 90-minute minimum connection on a 2h 15m layover.
Arrives on time80%First flight not cancelled (0.4% are) × connection made (95%) × second flight not cancelled (2.5% are) and within 15 minutes (87%).
Total trip5h 26mIAD 08:15 to CHS 13:41, 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.