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

Philadelphia → Knoxville via Atlanta: arrives on time 38%

  1. 17:12 PHL → 19:20 ATL
    DL 1692 · Delta · 2h 08m · 62% on time, 9.1% cancelled
  2. 1h 24m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 20:44 ATL → 21:49 TYS
    DL 5224 · Delta, flown by Endeavor · 1h 05m · 67% on time, 1.0% cancelled

Total trip 4h 37m, scheduled departure to arrival. Times are local. Both flew on 48 of the last 56 days.

Makes the connection64%The first flight arrived more than 39 minutes late on 36% of the days it flew: too late for the 45-minute minimum connection on a 1h 24m layover.
Arrives on time38%First flight not cancelled (9.1% are) × connection made (64%) × second flight not cancelled (1.0% are) and within 15 minutes (67%).
Total trip4h 37mPHL 17:12 to TYS 21:49, 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.