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

Indianapolis → Dulles via Atlanta: arrives on time 50%

  1. 16:33 IND → 18:15 ATL
    DL 3138 · Delta · 1h 43m · 67% on time, 0.0% cancelled
  2. 1h 00m layover in Atlanta (ATL) · 45 min minimum on one ticket
  3. 19:15 ATL → 21:03 IAD
    DL 1309 · Delta · 1h 49m · 76% on time, 2.5% cancelled

Total trip 4h 31m, scheduled departure to arrival. Times are local. Both flew on 45 of the last 56 days.

Makes the connection67%The first flight arrived more than 15 minutes late on 33% of the days it flew: too late for the 45-minute minimum connection on a 1h 00m layover.
Arrives on time50%First flight not cancelled (0.0% are) × connection made (67%) × second flight not cancelled (2.5% are) and within 15 minutes (76%).
Total trip4h 31mIND 16:33 to IAD 21:03, 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.