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

Dulles → Knoxville via Atlanta: arrives on time 75%

  1. 06:00 IAD → 07:46 ATL
    DL 2127 · Delta · 1h 46m · 90% on time, 2.6% cancelled
  2. 53m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 08:39 ATL → 09:38 TYS
    DL 1290 · Delta · 59m · 91% on time, 1.3% cancelled

Total trip 3h 38m, scheduled departure to arrival. Times are local. Both flew on 48 of the last 56 days.

Makes the connection86%The first flight arrived more than 8 minutes late on 14% of the days it flew: too late for the 45-minute minimum connection on a 53m layover.
Arrives on time75%First flight not cancelled (2.6% are) × connection made (86%) × second flight not cancelled (1.3% are) and within 15 minutes (91%).
Total trip3h 38mIAD 06:00 to TYS 09:38, 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.