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

Knoxville → Dulles via Atlanta: arrives on time 70%

  1. 18:08 TYS → 19:14 ATL
    DL 2571 · Delta · 1h 06m · 71% on time, 2.8% cancelled
  2. 3h 39m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 22:53 ATL → 00:44 IAD +1 day
    DL 2549 · Delta · 1h 51m · 75% on time, 2.1% cancelled

Total trip 6h 36m, scheduled departure to arrival. Times are local. Both flew on 46 of the last 56 days.

Makes the connection99%The first flight arrived more than 174 minutes late on 1% of the days it flew: too late for the 45-minute minimum connection on a 3h 39m layover.
Arrives on time70%First flight not cancelled (2.8% are) × connection made (99%) × second flight not cancelled (2.1% are) and within 15 minutes (75%).
Total trip6h 36mTYS 18:08 to IAD 00:44, 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.